Stove for easy slag removal and feeding

Abstract

The present invention provides a furnace that is convenient for slag cleaning and feeding, which belongs to the field of furnaces and includes a furnace body, a pusher head and a pusher plate. A fixed grate with an ash-dropping gap is provided in the inner cavity of the furnace body, and the fixed grate divides the inner cavity of the furnace body into a furnace and an ash storage cavity. A slag discharge channel connecting the furnace and the ash storage cavity is provided on the side wall of the furnace body, and a feed port and a guide hole located below the feed port are provided on the side wall of the furnace, and the guide hole is opposite to the entrance of the slag discharge channel. The pusher head is slidably arranged in the guide hole, and is used to extend from the guide hole to push the fuel falling from the feed port onto the fixed grate. The pusher plate is located above the fixed grate and connected to the pusher head. When the pusher head extends from the guide hole, the pusher plate is driven by the pusher head and pushes the slag on the fixed grate to the entrance of the slag discharge channel. The furnace that is convenient for slag cleaning and feeding of the present invention only needs to push the pusher head to complete the cleaning of the slag and move the fuel to the grate, which is simple to operate and reduces the labor intensity of the operator.

Description

Technical Field

[0001] The invention belongs to the technical field of furnaces, and more specifically, relates to a furnace which is convenient for slag removal and material feeding. Background Art

[0002] In the existing biomass combustion furnace, a grate for supporting biomass fuel is provided in the furnace body. After the biomass fuel is burned on the grate, powdered ash and blocky slag are formed. The powdered ash will naturally fall from the ash-falling gap of the grate, while the blocky slag will be stuck on the grate, and gradually accumulate in the furnace, occupying the space in the furnace. In addition, the feed port of the existing biomass combustion furnace is arranged on the side wall, which makes it easy for the biomass fuel fed into the furnace from the feed port to accumulate on one side of the furnace, making it easy for the biomass fuel to be insufficiently burned. Due to the above conditions, when using the biomass combustion furnace, the operator needs to manually clean the slag in the furnace on the one hand, and manually move the biomass fuel fed into the furnace to the grate on the other hand, which requires a high labor intensity for the operator. Summary of the invention

[0003] The object of the present invention is to provide a furnace that is convenient for slag cleaning and feeding, so as to solve the technical problem in the prior art that the operator needs to manually clean the slag in the furnace and move the biomass fuel onto the grate, which is labor-intensive.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is to provide a furnace that is convenient for slag cleaning and feeding, including:

[0005] A furnace body, wherein a fixed grate with an ash-falling gap is provided in the inner cavity, wherein the fixed grate divides the inner cavity of the furnace body into a furnace and an ash storage cavity, wherein a slag discharge channel connecting the furnace and the ash storage cavity is provided on the side wall of the furnace body, wherein a feed port and a guide hole located below the feed port are provided on the side wall of the furnace, wherein the guide hole is opposite to the entrance of the slag discharge channel;

[0006] a pusher head, slidably disposed in the guide hole, and configured to extend from the guide hole to push the fuel dropped from the feed port onto the fixed grate; and

[0007] A push plate is located above the fixed grate and connected to the push head. When the push head extends out of the guide hole, the push plate is driven by the push head and pushes the slag on the fixed grate toward the entrance of the slag discharge channel.

[0008] As another embodiment of the present application, the extension direction of the ash falling gap of the fixed grate is parallel to the pushing direction of the pushing head; the push plate is provided with a scraping claw inserted into the ash falling gap of the fixed grate, and the scraping claw follows the push plate to slide in the ash falling gap of the fixed grate.

[0009] As another embodiment of the present application, a translation grate with an ash dropping gap is provided between the push plate and the push head. The translation grate moves with the push head and is used to support the fuel falling from the feed port.

[0010] As another embodiment of the present application, the bearing surface of the translation grate is not lower than the push plate.

[0011] As another embodiment of the present application, the width of the ash dropping gap of the translation grate is greater than the diameter of the fuel particles.

[0012] As another embodiment of the present application, the guide hole and the entrance of the slag discharge channel are opposite to each other on a plane parallel to the bearing surface of the fixed grate; and the lower side of the push plate is in contact with the bearing surface of the fixed grate.

[0013] As another embodiment of the present application, the entrance of the slag discharge channel is provided with a self-closing door that closes automatically; when the push plate pushes the slag, the self-closing door is pushed open by the slag pushed by the push plate.

[0014] As another embodiment of the present application, the self-closing door includes a door panel, an upper portion of which is hinged to an upper side wall of the entrance of the slag discharge channel, and the door panel hangs down in a free state and closes the entrance of the slag discharge channel.

[0015] As another embodiment of the present application, the furnace for facilitating slag cleaning and feeding further includes a driving mechanism, and the driving mechanism includes:

[0016] Rotation unit;

[0017] A rotating disk, fixedly connected to the rotating shaft of the rotating unit;

[0018] an eccentric shaft, disposed on the rotating disk; and

[0019] A connecting rod has one end hinged to the eccentric shaft and the other end hinged to the pusher head.

[0020] As another embodiment of the present application, when the pusher head is retracted into the guide hole and reaches the limit position, the pusher plate separates the fixed grate into a slag pushing area close to the entrance of the slag discharge channel and a reserved area away from the entrance of the slag discharge channel.

[0021] The beneficial effect of the furnace that is convenient for slag cleaning and feeding provided by the embodiment of the present invention is that: compared with the prior art, the furnace that is convenient for slag cleaning and feeding provided by the embodiment of the present invention has a fixed grate that divides the inner cavity of the furnace body into a furnace and an ash storage chamber, and a feed port and a guide hole located below the feed port are provided on the side wall of the furnace. A pusher head is slidably arranged in the guide hole, so that the fuel put into the furnace from the feed port falls in front of or on the pusher head. As the pusher head extends from the guide hole, the pusher head pushes the fuel falling from the feed port onto the fixed grate. The guide hole is opposite to the entrance of the slag discharge channel on the side wall of the furnace, and a push plate is located above the fixed grate and connected to the pusher head. When the pusher head extends from the guide hole, the pusher plate is driven by the pusher head and pushes the slag on the fixed grate to the entrance of the slag discharge channel, and the slag falls into the ash storage chamber through the slag discharge channel. When the furnace that facilitates slag cleaning and feeding in the embodiment of the present invention is in use, it only needs to push the pusher head to complete the operations of cleaning the slag in the furnace and moving the biomass fuel onto the grate, which simplifies the operation and reduces the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A cross-sectional view of a furnace for facilitating slag removal and feeding provided by an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A top view of the fixed grate, pusher head, pusher plate and translation grate;

[0025] Figure 3 for Figure 1 Front view of the middle pusher head, pusher plate and translation grate;

[0026] Figure 4 for Figure 3 A top view of

[0027] Figure 5 for Figure 3 Side view of.

[0028] Among them, the reference numerals in the figure are:

[0029] 1-furnace body; 11-fixed grate; 111-slag pushing area; 112-reservation area; 113-ash dropping gap of fixed grate; 12-furnace; 13-ash storage chamber; 14-slag discharge channel; 141-door panel; 15-feeding port; 16-guide hole; 2-push head; 21-translational grate; 211-ash dropping gap of translational grate; 3-push plate; 31-claw; 4-driving mechanism; 41-rotation unit; 42-turntable; 43-eccentric shaft; 44-connecting rod. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Please also read Figures 1 to 5 The furnace for facilitating slag removal and feeding provided by the embodiment of the present invention is now described. A furnace for facilitating slag removal and feeding comprises a furnace body 1, a pusher head 2 and a pusher plate 3.

[0032] A fixed grate 11 with an ash dropping gap is provided in the inner cavity of the furnace body 1, and the fixed grate 11 divides the inner cavity of the furnace body 1 into a furnace 12 and an ash storage chamber 13. A slag discharge channel 14 connecting the furnace 12 and the ash storage chamber 13 is provided on the side wall of the furnace body 1. A feed port 15 and a guide hole 16 located below the feed port 15 are provided on the side wall of the furnace 12, and the guide hole 16 is opposite to the entrance of the slag discharge channel 14.

[0033] The pusher head 2 is slidably disposed in the guide hole 16 and is used to extend from the guide hole 16 to push the fuel dropped from the feed port 15 onto the fixed grate 11 .

[0034] The push plate 3 is located above the fixed grate 11 and connected to the push head 2. When the push head 2 extends from the guide hole 16, the push plate 3 is driven by the push head 2 and pushes the slag on the fixed grate 11 to the entrance of the slag discharge channel 14.

[0035] When in use, the fuel continuously enters the furnace 12 from the feed port 15, the pusher head 2 extends from the guide hole 16 and drives the pusher plate 3 to move toward the entrance of the slag discharge channel 14. During the process, the pusher plate 3 pushes the slag on the fixed grate 11 toward the entrance of the slag discharge channel 14, so that the slag on the fixed grate 11 is cleaned, and the fuel falls in front of and above the pusher head 2 and is pushed onto the fixed grate 11 by the pusher head 2, thereby cleaning the slag in the furnace 12 and moving the biomass fuel onto the grate. Afterwards, the pusher head 2 and the pusher plate 3 retreat and reset, and the fuel in front of and above the pusher head 2 is blocked on the fixed grate 11 by the fuel that enters later.

[0036] Compared with the prior art, the embodiment of the present invention is a furnace that facilitates slag removal and feeding. The fixed grate 11 divides the inner cavity of the furnace body 1 into a furnace 12 and an ash storage chamber 13. The side wall of the furnace 12 is provided with a feed port 15 and a guide hole 16 located below the feed port 15. The pusher head 2 is slidably arranged in the guide hole 16, so that the fuel put into the furnace 12 from the feed port 15 falls in front of or on the pusher head 2. As the pusher head 2 extends from the guide hole 16, the pusher head 2 pushes the fuel falling from the feed port 15 onto the fixed grate 11. The guide hole 16 is opposite to the entrance of the slag discharge channel 14 on the side wall of the furnace 12. The pusher plate 3 is located above the fixed grate 11 and connected to the pusher head 2. When the pusher head 2 extends from the guide hole 16, the pusher plate 3 is driven by the pusher head 2 and pushes the slag on the fixed grate 11 to the entrance of the slag discharge channel 14. The slag falls into the ash storage chamber 13 through the slag discharge channel 14. When the furnace that facilitates slag cleaning and feeding in the embodiment of the present invention is in use, it only needs to push the pusher head 2 to complete the operation of cleaning the slag in the furnace 12 and moving the biomass fuel onto the grate, which simplifies the operation and reduces the labor intensity of the operator.

[0037] In this embodiment, the structure of the furnace body 1 can be improved on the furnace body 1 of a traditional biomass fuel furnace. Specifically, the furnace body 1 may have a cavity inside, and the fixed grate 11 is horizontally arranged in the inner cavity of the furnace body 1 to divide the inner cavity of the furnace body 1 into an upper furnace 12 and a lower ash storage chamber 13. The ash formed after the fuel is burned in the furnace 12 falls into the ash storage chamber 13 from the ash-falling gap 113 of the fixed grate. A furnace mouth connected to the furnace 12 is provided at the top of the furnace body 1, and a gasification tank is installed in the furnace mouth. A refractory layer is provided on the side wall of the furnace 12. The slag discharge channel 14 may be arranged at the lower part of the side wall of the furnace 12, and the upper part of the slag discharge channel 14 forms a horizontal inlet on the inner wall surface of the furnace 12, and the lower end of the slag discharge channel 14 forms an outlet connected to the ash storage chamber 13, thereby connecting the furnace 12 and the ash storage chamber 13. The guide hole 16 is horizontally arranged at the lower part of the side wall of the furnace 12, and the guide hole 16 and the entrance of the slag discharge channel 14 are respectively arranged on the opposite side walls of the furnace 12, so that the guide hole 16 is opposite to the entrance of the slag discharge channel 14. A fuel bin is arranged on the outside of the furnace body 1, and the bottom of the fuel bin is connected with the furnace 12 to form a feed port 15 on the side wall of the furnace 12. The guide hole 16 is located below the feed port 15, so that the fuel falling from the feed port 15 falls outside the guide hole 16, so that the fuel can be pushed by the push head 2 in the guide hole 16. Specifically, the feed port 15 and the guide hole 16 can be arranged on the same side wall of the furnace 12, or they can be arranged on adjacent side walls of the furnace 12 respectively.

[0038] In this embodiment, the pusher head 2 can be horizontally slidably arranged in the guide hole 16, so that the pusher head 2 can slide along the guide hole 16 toward the entrance of the slag discharge channel 14, thereby pushing the fuel falling from the feed port 15 onto the fixed grate 11. More specifically, the pusher head 2 can be a rectangular parallelepiped shell, which can reduce weight and enable the pusher head 2 to push more fuel.

[0039] In this embodiment, the push plate 3 is fixed on the push head 2 and is located above the fixed grate 11. When the push head 2 extends from the guide hole 16, the push plate 3 slides toward the entrance of the slag discharge channel 14, pushing the slag on the fixed grate 11 to the entrance of the slag discharge channel 14, so that the slag passes through the slag discharge channel 14 and enters the ash storage chamber 13. Specifically, the lower side of the push plate 3 is in close contact with the fixed grate 11, so that the slag on the fixed grate 11 can be completely scraped off when the push plate 3 moves. When in use, the fuel is piled on the fixed grate 11, and the slag is at the bottom of the fuel pile. The push plate 3 only needs to push the slag at the bottom of the fuel pile on the fixed grate 11. Specifically, the height of the push plate 3 can be set to be less than the height of the fuel pile on the fixed grate 11 to avoid pushing the entire fuel pile into the slag discharge channel 14. More specifically, the height of the push plate 3 can be set to be less than half the height of the fuel pile on the fixed grate 11.

[0040] More specifically, the width of the entrance of the slag discharge channel 14 is not less than the width of the fixed grate 11, and the length of the push plate 3 is not less than the width of the fixed grate 11, so that the push plate 3 can push all the slag on the grate into the entrance of the slag discharge channel 14. The width of the push head 2 is not less than the width of the fuel pile formed by the fuel thrown from the feed port 15, so that the push head 2 can push all the fuel pile onto the fixed grate 11.

[0041] See also Figure 1 and Figure 2 As a specific embodiment of the furnace for facilitating slag cleaning and feeding provided by the present invention, the extension direction of the ash gap 113 of the fixed grate is parallel to the pushing direction of the pusher 2. With this arrangement, when the pusher 2 pushes the fuel, the fuel slides along the extension direction of the ash gap on the fixed grate 11, with less resistance and less effort in pushing. It also makes the slag slide along the extension direction of the ash gap when the push plate 3 pushes the slag, with less resistance and less effort in pushing.

[0042] In this embodiment, the ash-falling gaps 113 of the fixed grate are in the shape of long strips, and the multiple ash-falling gaps are parallel to each other and are parallel to the axis of the guide hole 16. The push head 2 slides in the guide hole 16 along the axis of the guide hole 16, and drives the push plate 3 to slide along the axis of the guide hole 16.

[0043] See also Figures 1 to 5As a specific embodiment of the furnace for facilitating slag removal and feeding provided by the present invention, the push plate 3 is provided with a claw 31 inserted into the ash gap 113 of the fixed grate, and the claw 31 follows the push plate 3 to slide in the ash gap 113 of the fixed grate. When the push plate 3 slides, the sliding of the claw 31 in the ash gap 113 of the fixed grate can scrape off the slag stuck in the ash gap, thereby playing a role in cleaning the ash gap. The claw 31 can also play a certain guiding role on the push plate 3 to prevent the push plate 3 from shaking.

[0044] In this embodiment, the ash gaps 113 of the fixed grate are in the shape of long strips, and the multiple ash gaps are parallel to each other and are parallel to the axis of the guide hole 16. The push plate 3 is in the shape of long strips, and the long axis of the push plate 3 is perpendicular to the ash gaps. The plate surface of the push plate 3 is vertically arranged to push the slag on the fixed grate 11. The claws 31 are located below the push plate 3, and the claws 31 can correspond to the ash gaps 113 of the fixed grate one by one, or the number of the claws 31 can be less than the ash gaps 113 of the fixed grate.

[0045] See also Figures 1 to 4 As a specific embodiment of the furnace for facilitating slag removal and feeding provided by the present invention, a translation grate 21 with a ash-dropping gap is provided between the push plate 3 and the push head 2. The translation grate 21 is parallel to the fixed grate 11, moves with the push head 2 and is used to support the fuel falling from the feed port 15. The translation grate 21 can support the fuel falling from the feed port 15, so that the fuel can be pushed by the push head 2 more easily.

[0046] In this embodiment, the translation grate 21 supports the fuel falling from the feed port 15, and may partially support the fuel falling from the feed port 15, that is, the fuel falling from the feed port 15 partially falls on the translation grate 21, and partially passes through the ash gap 211 of the translation grate and falls on the fixed grate 11, and the translation grate 21 and the fixed grate 11 jointly support the fuel falling from the feed port 15. In this case, the translation grate 21 can reduce the contact between the fuel and the fixed grate 11, thereby reducing the resistance of the push head 2 to push the fuel. The translation grate 21 supports the fuel falling from the feed port 15, and may also fully support the fuel falling from the feed port 15, that is, the fuel falling from the feed port 15 completely falls on the translation grate 21, so that the fuel is separated from the fixed grate 11. In this case, the fuel is separated from the fixed grate 11, and the fuel moves directly following the translation grate 21 and the push head 2, with less resistance.

[0047] See also Figure 1 , Figure 3 and Figure 5 As a specific embodiment of the furnace for facilitating slag removal and feeding provided by the present invention, the bearing surface of the translation grate 21 is not lower than the push plate 3. With this structure, it is possible to prevent the push plate 3 from bringing back the fuel on the translation grate 21 when retreating.

[0048] Specifically, the translation grate 21 is arranged horizontally, and its upper side is a bearing surface for bearing the fuel dropped from the feed port 15. The plate surface of the push plate 3 is vertical, and the upper side of the push plate 3 is at the same height as the bearing surface of the translation grate 21, or the upper side of the push plate 3 is located below the bearing surface of the translation grate 21.

[0049] See also Figure 2 As a specific embodiment of the furnace for facilitating slag cleaning and feeding provided by the present invention, the width of the ash gap 211 of the translation grate is greater than the diameter of the fuel particles. With this structure, the translation grate 21 can partially support the fuel falling from the feed port 15, reducing the resistance of the pusher head 2 to push the fuel. At the same time, it can also simplify the structure of the translation grate 21, facilitate processing, save materials, reduce the weight of the translation grate 21, and make the pusher head 2 easier to drive.

[0050] In this embodiment, the width of the ash gap 113 of the fixed grate is smaller than the diameter of the fuel particles. The width of the ash gap 211 of the translation grate is larger than the diameter of the fuel particles and also larger than the width of the ash gap 113 of the fixed grate. The ash gap 211 of the translation grate is in the shape of a long strip, and the ash gap 211 of the translation grate is parallel to the ash gap 113 of the fixed grate.

[0051] See also Figure 1 and Figure 2 As a specific embodiment of the furnace for facilitating slag cleaning and feeding provided by the present invention, the guide hole 16 and the entrance of the slag discharge channel 14 are opposite to each other on a plane parallel to the bearing surface of the fixed grate 11; the lower side of the push plate 3 is in contact with the bearing surface of the fixed grate 11.

[0052] In this embodiment, the fixed grate 11 is arranged horizontally, and a horizontal rectangular pipe is arranged on the side wall of the furnace 12. The inner cavity of the pipe forms a horizontal guide hole 16, and the guide hole 16 is opposite to the entrance of the slag discharge channel 14 in the horizontal plane.

[0053] See also Figure 1 As a specific embodiment of the furnace for facilitating slag cleaning and feeding provided by the present invention, the entrance of the slag discharge channel 14 is provided with an automatically closed self-closing door, and when the push plate 3 pushes the slag, the self-closing door is pushed open by the slag pushed by the push plate 3. When the push plate 3 pushes the slag, the self-closing door can be pushed open, so that the slag is pushed into the slag discharge channel 14 from the entrance, so that the slag enters the ash storage chamber 13 through the slag discharge channel 14. When the slag is discharged, the self-closing door can automatically close the entrance of the slag discharge channel 14, thereby blocking the air flow between the furnace 12 and the ash storage chamber 13, preventing a large amount of air from entering the furnace 12, making it difficult to control the combustion in the furnace 12.

[0054] In this embodiment, the self-closing door can be a structure that uses a spring to automatically seal the door panel 141 on the entrance of the slag discharge channel 14, or it can be a structure that uses the gravity of the door panel 141 to automatically seal the door panel 141 on the entrance of the slag discharge channel 14.

[0055] See also Figure 1 As a specific embodiment of the furnace for facilitating slag removal and feeding provided by the present invention, the self-closing door includes a door panel 141, the upper part of the door panel 141 is hinged to the upper side wall of the entrance of the slag discharge channel 14, and the door panel 141 hangs down in a free state and closes the entrance of the slag discharge channel 14. The use of this automatic door has a simple structure, a long service life, and high reliability.

[0056] In this embodiment, the end face of the inlet of the slag discharge channel 14 is vertical, the door panel 141 is a vertical flat plate, and the upper part of the door panel 141 is hinged on the upper side wall of the inlet of the slag discharge channel 14, so that the door panel 141 can swing freely, and after being stationary, it is in a vertical state to close the inlet of the slag discharge channel 14. When the push plate 3 pushes the slag to the inlet of the slag discharge channel 14, the slag can push the door panel 141 to swing into the slag discharge channel 14, so that the inlet of the slag discharge channel 14 is opened. When the slag falls from the slag discharge channel 14 into the ash storage chamber 13, the door panel 141 returns to a vertical state to close the inlet of the slag discharge channel 14.

[0057] See also Figure 1 As a specific embodiment of the furnace for facilitating slag cleaning and feeding provided by the present invention, the furnace for facilitating slag cleaning and feeding also includes a driving mechanism 4, and the driving mechanism 4 includes a rotating unit 41, a turntable 42, an eccentric shaft 43 and a connecting rod 44.

[0058] The rotating disk 42 is fixedly connected to the rotating shaft of the rotating unit 41. The eccentric shaft 43 is arranged on the rotating disk 42. One end of the connecting rod 44 is hinged to the eccentric shaft 43, and the other end is hinged to the pusher head 2.

[0059] The use of such a driving mechanism 4 can realize driving the push head 2 and the push plate 3 to reciprocate, thereby realizing automation of slag cleaning and material pushing. Moreover, such a driving mechanism 4 has a simple structure, high reliability and long service life.

[0060] In this embodiment, the rotating unit 41 is fixed outside the furnace body 1, specifically, it can be located behind the guide hole 16. The rotating unit 41 adopts a motor or a reducer driven by the motor, and a circular turntable 42 is fixed on the rotating shaft of the rotating unit 41, and an eccentric shaft 43 is fixed at the eccentric position of the turntable 42. More specifically, the rotating shaft of the rotating unit 41 is arranged vertically, so that the turntable 42 is in a horizontal state, which can reduce the height of the driving mechanism 4, facilitate the arrangement of the driving mechanism 4 on the furnace body 1, and reduce the volume of the furnace for slag removal and feeding in this embodiment. The connecting rod 44 is a long straight rod, one end of which is hinged on the eccentric shaft 43, and the other end extends into the guide hole 16 and is hinged with the rear end of the push head 2. When in use, the rotating shaft of the rotating unit 41 drives the turntable 42 to rotate, and the eccentric shaft 43 on the turntable 42 pushes or pulls the push head 2 to slide back and forth in the guide hole 16 through the connecting rod 44.

[0061] See also Figure 1 and Figure 2 As a specific embodiment of the furnace that is convenient for slag cleaning and feeding provided by the present invention, when the pusher head 2 is retracted into the guide hole 16 and reaches the limit position, the pusher plate 3 separates the fixed grate 11 into a slag pushing area 111 close to the entrance of the slag discharge channel 14 and a reserved area 112 away from the entrance of the slag discharge channel 14. With this structure, when combustion occurs in the furnace 12, the burning fuel is distributed in the slag pushing area 111 and the reserved area 112 of the fixed grate 11; when the pusher head 2 extends from the guide hole 16, the push plate 3 pushes the slag on the slag pushing area 111 into the entrance of the slag discharge channel 14, which can ensure that no slag remains in the slag pushing area 111; however, this will also cause the burning fuel on the slag pushing area 111 to be pushed into the slag discharge channel 14, reducing the flame of the slag pushing area 111 or even extinguishing it; and the push plate 3 will not scrape the reserved area 112, so the fuel on the reserved area 112 will keep burning, thereby re-igniting the fuel on the slag pushing area 111, so that the combustion can proceed stably and continuously.

[0062] In this embodiment, the limit position of the push head 2 retracted into the guide hole 16 can be determined by setting a limit structure in the guide hole 16, or by the stroke of the push head 2 driven by the driving mechanism 4. When the push head 2 retracts into the guide hole 16 and reaches the limit position, the push plate 3 can be located in the middle of the fixed grate 11, dividing the fixed grate 11 into a slag pushing area 111 and a reserved area 112 of the same area. The position of the push plate 3 can also be closer to the entrance of the slag discharge channel 14. For example, the ratio of the distance from the push plate 3 to the side of the fixed grate 11 close to the entrance of the slag discharge channel 14 and the distance from the push plate 3 to the side of the fixed grate 11 close to the guide hole 16 is 1:2, so that the area of ​​the slag pushing area 111 and the reserved area 112 is 1:2. More specifically, the push head 2 in this embodiment can be driven by the driving mechanism 4, and the eccentricity of the eccentric shaft 43 on the turntable 42 can be controlled to control the size of the slag pushing area 111 and the reserved area 112.

[0063] More specifically, the pusher head 2 in this embodiment can be driven by the driving mechanism 4 , and the eccentricity of the eccentric shaft 43 on the turntable 42 can be controlled to control the size of the slag pushing area 111 and the reserved area 112 .

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A furnace that is convenient for slag removal and feeding, characterized in that: include: A furnace body, wherein a fixed grate with an ash-falling gap is provided in the inner cavity, wherein the fixed grate divides the inner cavity of the furnace body into a furnace and an ash storage cavity, wherein a slag discharge channel connecting the furnace and the ash storage cavity is provided on the side wall of the furnace body, wherein a feed port and a guide hole located below the feed port are provided on the side wall of the furnace, wherein the guide hole is opposite to the entrance of the slag discharge channel; A pusher head is slidably disposed in the guide hole and is used to extend from the guide hole to push the fuel dropped from the feed port onto the fixed grate; as well as A push plate, located above the fixed grate and connected to the push head, when the push head extends out of the guide hole, the push plate is driven by the push head and pushes the slag on the fixed grate to the entrance of the slag discharge channel; The extension direction of the ash-falling gap of the fixed grate is parallel to the pushing direction of the push head; the push plate is provided with a claw inserted into the ash-falling gap of the fixed grate, and the claw follows the push plate to slide in the ash-falling gap of the fixed grate; A translation grate with an ash-dropping gap is provided between the push plate and the push head, and the translation grate moves with the push head and is used to support the fuel dropped from the feed port; When the pusher head is retracted into the guide hole and reaches the limit position, the push plate separates the fixed grate into a slag pushing area close to the entrance of the slag discharge channel and a reserved area away from the entrance of the slag discharge channel.

2. The furnace for facilitating slag removal and feeding as claimed in claim 1, characterized in that: The bearing surface of the translation grate is not lower than the push plate.

3. The furnace for facilitating slag removal and feeding as claimed in claim 1, characterized in that: The width of the ash-falling gap of the translation grate is greater than the diameter of the fuel particles.

4. The furnace for facilitating slag cleaning and feeding as claimed in any one of claims 1 to 3, characterized in that: The guide hole and the entrance of the slag discharge channel are opposite to each other on a plane parallel to the bearing surface of the fixed grate; the lower side of the push plate is in contact with the bearing surface of the fixed grate.

5. The furnace for facilitating slag cleaning and feeding as claimed in any one of claims 1 to 3, characterized in that: The entrance of the slag discharge channel is provided with a self-closing door which closes automatically; when the push plate pushes the slag, the self-closing door is pushed open by the slag pushed by the push plate.

6. The furnace for facilitating slag removal and feeding as claimed in claim 5, characterized in that: The self-closing door comprises a door plate, an upper portion of which is hinged to an upper side wall of the entrance of the slag discharge channel, and the door plate hangs down in a free state and closes the entrance of the slag discharge channel.

7. The furnace for facilitating slag removal and feeding as claimed in claim 1, characterized in that: The furnace for facilitating slag cleaning and feeding also includes a driving mechanism, and the driving mechanism includes: Rotation unit; A rotating disk, fixedly connected to the rotating shaft of the rotating unit; an eccentric shaft, disposed on the rotating disk; and A connecting rod has one end hinged to the eccentric shaft and the other end hinged to the pusher head.

Images