CN110822485A

CN110822485A - Stove convenient for slag removal and feeding

Info

Publication number: CN110822485A
Application number: CN201911066891.XA
Authority: CN
Inventors: 李娜
Original assignee: Shandong Zhengxinde Environmental Technology Development Co Ltd
Current assignee: Shandong Zhengxinde Environmental Technology Development Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-02-21

Abstract

The invention provides a furnace convenient for slag removal and feeding, belonging to the field of furnaces and comprising a furnace body, a push head and a push plate. The fixed grate is arranged in the inner cavity of the furnace body and divides the inner cavity of the furnace body into a hearth and an ash storage cavity, a slag discharge channel communicated with the hearth and the ash storage cavity is arranged on the side wall of the furnace body, a feed inlet and a guide hole positioned below the feed inlet are arranged on the side wall of the hearth, and the guide hole is opposite to the inlet of the slag discharge channel. The pushing head is arranged in the guide hole in a sliding mode and used for extending out of the guide hole so as to push fuel falling from the feeding hole to the fixed grate. The push plate is positioned above the fixed grate and connected with the push head, and when the push head extends out of the guide hole, the push plate is driven by the push head and pushes slag on the fixed grate to an inlet of the slag discharge channel. The furnace convenient for slag removal and feeding can finish slag removal and fuel stirring to the fire grate only by pushing the pushing head, is simple to operate and reduces the labor intensity of operators.

Description

Stove convenient for slag removal and feeding

Technical Field

The invention belongs to the technical field of furnaces, and particularly relates to a furnace convenient for slag removal and feeding.

Background

In the existing biomass combustion furnace, a fire grate for supporting biomass fuel is arranged in a furnace body, powdery furnace ash and blocky furnace slag are formed after the biomass fuel is combusted on the fire grate, the powdery furnace ash can naturally fall from an ash falling gap of the fire grate, and the blocky furnace slag can be clamped on the fire grate, so that the powdery furnace ash can be gradually accumulated in a hearth and occupies the space in the hearth. In addition, the feeding hole of the existing biomass combustion furnace is arranged on the side wall, so that biomass fuel fed into the hearth from the feeding hole is easy to accumulate on one side of the hearth, and the phenomenon of insufficient combustion of the biomass fuel is easy to occur. Due to the situations, when the biomass combustion furnace is used, an operator needs to manually clean the slag in the hearth on one hand, and manually stir the biomass fuel thrown into the hearth onto the grate on the other hand, so that the labor intensity of the operator is high.

Disclosure of Invention

The invention aims to provide a furnace convenient for slag removal and feeding, and aims to solve the technical problems that in the prior art, an operator needs to manually clean slag in a hearth and stir biomass fuel onto a grate, and the labor intensity is high.

In order to achieve the above object, the present invention adopts a technical scheme that a furnace convenient for slag removal and feeding is provided, which comprises:

the furnace comprises a furnace body, wherein a fixed grate with an ash falling gap is arranged in an inner cavity, the fixed grate divides the inner cavity of the furnace body into a hearth and an ash storage cavity, a slag discharge channel for communicating the hearth with the ash storage cavity is arranged on the side wall of the furnace body, a feed inlet and a guide hole positioned below the feed inlet are arranged on the side wall of the hearth, and the guide hole is opposite to the inlet of the slag discharge channel;

the pushing head is arranged in the guide hole in a sliding mode and used for extending out of the guide hole so as to push the fuel falling from the feeding hole onto the fixed grate; and

and the push plate is positioned above the fixed grate and connected with the push head, and 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 inlet of the slag discharge channel.

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 pushing plate is provided with a claw inserted into an ash discharge gap of the fixed furnace, and the claw slides in the ash discharge gap of the fixed furnace grate along with the pushing plate.

As another embodiment of the application, a translation grate with an ash falling gap is arranged between the push plate and the push head, and the translation grate moves along with the push head and is used for supporting fuel falling from the feed port.

As another embodiment of the present application, the carrying surface of the translating grate is not lower than the push plate.

As another embodiment of the present application, the width of the ash discharge gap of the translating furnace is greater than the diameter of the fuel particles.

As another embodiment of the present application, the guiding hole and the inlet of the slag discharging channel are opposite on a plane parallel to the bearing surface of the fixed grate; the lower side edge of the push plate is attached to the bearing surface of the fixed grate.

As another embodiment of the application, the inlet of the slag discharging channel is provided with an automatic closing self-closing door; when the pushing plate pushes the slag, the self-closing door is pushed away by the slag pushed by the pushing plate.

As another embodiment of the present application, the self-closing door comprises a door plate, the upper part of which is hinged with the upper side wall of the entrance of the slag discharge passage, and the door plate hangs down in a free state and closes the entrance of the slag discharge passage.

As another embodiment of the present application, the furnace facilitating slag removal and feeding further comprises a driving mechanism, the driving mechanism comprises:

a rotation unit;

the rotary table is fixedly connected with a rotating shaft of the rotating unit;

the eccentric shaft is arranged on the rotary table; and

one end of the connecting rod is hinged with the eccentric shaft, and the other end of the connecting rod is hinged with the pushing head.

As another embodiment of the application, when the pushing head retracts into the guide hole to reach the limit position, the pushing plate divides the fixed grate into a slag pushing area close to the inlet of the slag discharging channel and a reserved area far away from the inlet of the slag discharging channel.

The furnace convenient for slag removal and feeding provided by the embodiment of the invention has the beneficial effects that: compared with the prior art, the stove convenient for slag removal and feeding provided by the embodiment of the invention has the advantages that the fixed grate divides the inner cavity of the stove body into the hearth and the ash storage cavity, the side wall of the hearth is provided with the feed inlet and the guide hole positioned below the feed inlet, the push head is arranged in the guide hole in a sliding manner, so that fuel thrown into the hearth from the feed inlet falls in front of the push head or on the push head, and the push head pushes the fuel falling from the feed inlet onto the fixed grate along with the extension of the push head from the guide hole. The guide hole is opposite to the inlet of the slag discharge channel on the side wall of the hearth, the push plate is positioned above the fixed grate and connected with the pushing head, when the pushing head extends out of the guide hole, the push plate is driven by the pushing head and pushes slag on the fixed grate to the inlet of the slag discharge channel, and the slag falls into the ash storage cavity through the slag discharge channel. When the furnace convenient for slag removal and feeding provided by the embodiment of the invention is used, the operation of cleaning slag in a hearth and shifting biomass fuel to a fire grate can be finished only by pushing the push head, so that the operation is simplified, and the labor intensity of an operator is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a cross-sectional view of a furnace for facilitating slag removal and feeding in accordance with an embodiment of the present invention;

FIG. 2 is a top view of the fixed grate, pusher head, pusher plate, and translating grate of FIG. 1;

FIG. 3 is a front view of the pusher head, pusher plate and translating grate of FIG. 1;

FIG. 4 is a top view of FIG. 3;

fig. 5 is a side view of fig. 3.

Wherein, in the figures, the respective reference numerals:

1-furnace body; 11-fixed grate; 111-slag pushing area; 112-reserved area; 113-ash falling gap of fixed grate; 12-a hearth; 13-ash storage cavity; 14-a slag discharge channel; 141-a door panel; 15-a feed inlet; 16-a pilot hole; 2-pushing the head; 21-translating the grate; 211-ash falling gap of translating grate; 3-pushing the plate; 31-picking claw; 4-a drive mechanism; 41-a rotation unit; 42-a turntable; 43-an eccentric shaft; 44-connecting rod.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 5, a furnace convenient for slag removal and feeding according to an embodiment of the present invention will be described. A furnace convenient for slag removal and feeding comprises a furnace body 1, a pushing head 2 and a pushing plate 3.

The inner cavity of the furnace body 1 is provided with a fixed grate 11 with an ash falling gap, the fixed grate 11 divides the inner cavity of the furnace body 1 into a furnace chamber 12 and an ash storage chamber 13, the side wall of the furnace body 1 is provided with a slag discharge channel 14 communicating the furnace chamber 12 and the ash storage chamber 13, the side wall of the furnace chamber 12 is provided with a feed inlet 15 and a guide hole 16 positioned below the feed inlet 15, and the guide hole 16 is opposite to the inlet of the slag discharge channel 14.

The pushing head 2 is slidably disposed in the guiding hole 16 for protruding from the guiding hole 16 to push the fuel dropped from the feeding port 15 onto the fixed grate 11.

The push plate 3 is positioned above the fixed grate 11 and connected with the pushing head 2, when the pushing head 2 extends out of the guide hole 16, the push plate 3 is driven by the pushing head 2 and pushes the slag on the fixed grate 11 to the inlet of the slag discharge channel 14.

When the furnace is used, fuel continuously enters the furnace 12 from the feeding hole 15, the push head 2 extends out of the guide hole 16 and drives the push plate 3 to move towards the inlet of the slag discharge channel 14, in the process, the push plate 3 pushes slag on the fixed grate 11 to the inlet of the slag discharge channel 14, so that the slag on the fixed grate 11 is cleaned, the fuel falls in front of and above the push head 2 and is pushed onto the fixed grate 11 by the push head 2, and simultaneously, the purposes of cleaning the slag in the furnace 12 and stirring the biomass fuel to the grate are achieved. Then the pushing head 2 and the pushing plate 3 retreat and reset, and the fuel in front of and above the pushing head 2 is blocked on the fixed fire grate 11 by the fuel entering subsequently.

Compared with the prior art, the furnace convenient for slag removal and feeding in the embodiment of the invention has the advantages that the fixed grate 11 divides the inner cavity of the furnace body 1 into the hearth 12 and the ash storage cavity 13, the side wall of the hearth 12 is provided with the feed inlet 15 and the guide hole 16 positioned below the feed inlet 15, the push head 2 is arranged in the guide hole 16 in a sliding manner, so that fuel thrown into the hearth 12 from the feed inlet 15 falls in front of the push head 2 or on the push head 2, and the push head 2 pushes the fuel falling from the feed inlet 15 onto the fixed grate 11 along with the extension of the push head 2 from the guide hole 16. The guide hole 16 is opposite to the entrance of the slag discharge channel 14 on the side wall of the hearth 12, the push plate 3 is positioned above the fixed grate 11 and connected with the push head 2, when the push head 2 extends out of the guide hole 16, the push plate 3 is driven by the push head 2 and pushes slag on the fixed grate 11 to the entrance of the slag discharge channel 14, and the slag falls into the ash storage cavity 13 through the slag discharge channel 14. When the furnace convenient for slag removal and feeding provided by the embodiment of the invention is used, the operations of cleaning the slag in the hearth 12 and shifting the biomass fuel to the fire grate can be finished only by pushing the push head 2, so that the operation is simplified, and the labor intensity of an operator is reduced.

In this embodiment, the structure of the furnace body 1 can be improved from the furnace body 1 of the conventional biomass fuel furnace. Specifically, the furnace body 1 may have a cavity therein, the fixed grate 11 is horizontally arranged in the cavity of the furnace body 1 to divide the cavity of the furnace body 1 into an upper furnace chamber 12 and a lower ash storage chamber 13, and ash formed after the fuel in the furnace chamber 12 is combusted falls into the ash storage chamber 13 from an ash falling gap 113 of the fixed grate. The top of the furnace body 1 is provided with a furnace mouth communicated with the hearth 12, a gasification tank is arranged in the furnace mouth, and the side wall of the hearth 12 is provided with a fire-resistant layer. The slag discharging passage 14 may be provided at a lower portion of a sidewall of the furnace 12, and an upper portion of the slag discharging passage 14 forms an inlet facing horizontally on an inner wall surface of the furnace 12, and a lower end of the slag discharging passage 14 forms an outlet communicating with the ash storage chamber 13, thereby communicating the furnace 12 and the ash storage chamber 13. The guide hole 16 is horizontally provided at a lower portion of the sidewall of the furnace 12, and the guide hole 16 and the entrance of the slag discharging passage 14 are respectively provided at opposite sidewalls of the furnace 12 such that the guide hole 16 is opposite to the entrance of the slag discharging passage 14. The outer side of the furnace body 1 is provided with a fuel bin, and the bottom of the fuel bin is communicated with the hearth 12 to form a feeding hole 15 on the side wall of the hearth 12. The guide hole 16 is located below the feed opening 15, so that the fuel falling from the feed opening 15 falls outside the guide hole 16, and the fuel can be pushed by the push head 2 in the guide hole 16, specifically, the feed opening 15 and the guide hole 16 may be disposed on the same side wall of the furnace 12, or may be disposed on adjacent side walls of the furnace 12, respectively.

In this embodiment, the pushing head 2 can be horizontally slidably disposed in the guiding hole 16, so that the pushing head 2 can slide along the guiding hole 16 toward the entrance of the slag discharging channel 14, thereby pushing the fuel falling from the feeding port 15 onto the fixed grate 11. More specifically, the pushing head 2 may be a rectangular parallelepiped housing, which can reduce the weight and also enable the pushing head 2 to push more fuel.

In this embodiment, the pushing plate 3 is fixed on the pushing head 2 and located above the fixed grate 11, and when the pushing head 2 extends out of the guiding hole 16, the pushing plate 3 slides towards the entrance of the slag discharging channel 14, so as to push the slag on the fixed grate 11 towards the entrance of the slag discharging channel 14, so that the slag enters the ash storage cavity 13 through the slag discharging channel 14. Specifically, the lower side edge of the push plate 3 is tightly attached to 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 the furnace is used, fuel is stacked on the fixed grate 11, slag is positioned at the bottom of a fuel pile, and 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 smaller than that of the fuel pile on the fixed grate 11, so that the fuel pile is prevented from being pushed into the slag discharge channel 14 completely, and more specifically, the height of the push plate 3 can be set to be smaller than half of that of the fuel pile on the fixed grate 11.

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 fed from the feed opening 15, so that the push head 2 can push the fuel pile to the fixed grate 11 completely.

Referring to fig. 1 and 2, as a specific embodiment of the furnace convenient for slag removal and feeding provided by the present invention, the extension direction of the ash falling gap 113 of the fixed grate is parallel to the pushing direction of the pushing head 2. By adopting the arrangement, when the pushing head 2 pushes the fuel, the fuel slides on the fixed grate 11 along the extension direction of the ash falling gap, the resistance is smaller, and the pushing is more labor-saving. When the push plate 3 pushes the slag, the slag slides along the extension direction of the ash falling gap, the resistance is smaller, and the pushing is more labor-saving.

In this embodiment, the ash discharge gaps 113 of the fixed grate are elongated and parallel to each other and to the axis of the guiding hole 16. The pushing head 2 slides in the guide hole 16 along the axial direction of the guide hole 16, and drives the pushing plate 3 to slide along the axial direction of the guide hole 16.

Referring to fig. 1 to 5, as a specific embodiment of the furnace convenient for slag removal and feeding provided by the present invention, the pushing plate 3 is provided with a claw 31 inserted into the ash falling gap 113 of the fixed grate, and the claw 31 slides in the ash falling gap 113 of the fixed grate along with the pushing plate 3. When the push plate 3 slides, the claw 31 slides in the ash falling gap 113 of the fixed grate, so that slag and the like clamped in the ash falling gap can be scraped off, and the function of cleaning the ash falling gap is achieved. The claw 31 can also play a certain guiding role in the push plate 3 to prevent the push plate 3 from shaking.

In this embodiment, the ash discharge gaps 113 of the fixed grate are elongated and parallel to each other and to the axis of the guiding hole 16. The push plate 3 is strip-shaped, the long axis of the push plate 3 is perpendicular to the gap of the falling ash, and the surface of the push plate 3 is vertically arranged and used for pushing the slag on the fixed grate 11. The claw 31 is positioned below the push plate 3, and the claw 31 can be in one-to-one correspondence with the ash falling gaps 113 of the fixed grate or the number of the ash falling gaps 113 is less than that of the fixed grate.

Referring to fig. 1 to 4, as a specific embodiment of the furnace convenient for slag removal and feeding provided by the present invention, a translation grate 21 with ash falling gaps is arranged between the push plate 3 and the push head 2, and the translation grate 21 is parallel to the fixed grate 11, moves along with the push head 2, and is used for supporting fuel falling from the feed port 15. The translating grate 21 is capable of holding fuel that falls from the inlet 15 so that the fuel can be more easily pushed by the pusher head 2.

In this embodiment, the translating grate 21 supports the fuel falling from the feeding port 15, and may partially support the fuel falling from the feeding port 15, that is, the fuel falling from the feeding port 15 partially falls on the translating grate 21, and partially passes through the ash falling gap 211 of the translating grate and falls on the fixed grate 11, and the translating grate 21 and the fixed grate 11 jointly support the fuel falling from the feeding port 15. In this case, the translating grate 21 reduces the contact of the fuel with the fixed grate 11, thereby reducing the resistance of the pusher head 2 to pushing the fuel. The translating grate 21 supports the fuel falling from the inlet port 15 or completely supports the fuel falling from the inlet port 15, i.e., the fuel falling from the inlet port 15 completely falls on the translating grate 21 to separate the fuel from the stationary grate 11. In this case, the fuel is separated from the fixed grate 11, and the fuel directly moves along with the translation grate 21 and the pushing head 2, so that the resistance is smaller.

Referring to fig. 1, 3 and 5, as an embodiment of the furnace for facilitating slag removal and feeding of the present invention, the bearing surface of the translating grate 21 is not lower than the pushing plate 3. By adopting the structure, the fuel on the translation grate 21 can be prevented from being brought back when the push plate 3 retreats.

Specifically, the translating grate 21 is horizontally disposed and has a top side surface that is a bearing surface for bearing fuel that falls from the inlet 15. The plate surface of the push plate 3 is vertical, the height of the upper side edge of the push plate 3 is the same as that of the bearing surface of the translation grate 21, or the upper side edge of the push plate 3 is positioned below the bearing surface of the translation grate 21.

Referring to fig. 2, as an embodiment of the present invention, the width of the ash falling gap 211 of the traveling grate is larger than the diameter of the fuel particles. By adopting the structure, the translation grate 21 can partially support the fuel falling from the feed port 15, the resistance of the pushing head 2 for pushing the fuel is reduced, and meanwhile, the structure of the translation grate 21 can be simplified, so that the processing is convenient, the material is saved, the weight of the translation grate 21 is reduced, and the pushing head 2 is easier to drive.

In this embodiment, the width of the ash falling gap 113 of the fixed grate is smaller than the diameter of the fuel particles. The width of the ash falling gap 211 of the translating grate is greater than the diameter of the fuel particles and also greater than the width of the ash falling gap 113 of the stationary grate. The ash falling gap 211 of the translating grate is elongated and the ash falling gap 211 of the translating grate is parallel to the ash falling gap 113 of the fixed grate.

Referring to fig. 1 and 2, as a specific embodiment of the furnace for facilitating slag removal and feeding provided by the present invention, the guiding holes 16 and the entrance of the slag discharging passage 14 are opposite to each other on a plane parallel to the bearing surface of the fixed grate 11; the lower side edge of the push plate 3 is attached to the bearing surface of the fixed grate 11.

In this embodiment, the fixed grate 11 is horizontally disposed, a horizontal rectangular duct is disposed on the sidewall of the furnace 12, a horizontal guide hole 16 is formed in the inner cavity of the duct, and the guide hole 16 is opposite to the entrance of the slag discharge passage 14 on the horizontal plane.

Referring to fig. 1, as a specific embodiment of the furnace convenient for slag removal and feeding provided by the present invention, an inlet of the slag discharging channel 14 is provided with an automatically-closed self-closing door, and when the pushing plate 3 pushes the slag, the self-closing door is pushed by the slag pushed by the pushing plate 3. The pushing plate 3 can push the self-closing door open when pushing the slag, so that the slag is pushed into the slag discharging channel 14 from the inlet, and the slag enters the ash storage cavity 13 through the slag discharging channel 14. When the slag is discharged, the self-closing door can automatically close the inlet of the slag discharge channel 14, so that the air flow between the hearth 12 and the ash storage cavity 13 is blocked, a large amount of air is prevented from entering the hearth 12, and the combustion in the hearth 12 is difficult to control.

In this embodiment, the self-closing door may be a structure in which the door plate 141 is automatically closed on the entrance of the slag discharge passage 14 by a spring, or a structure in which the door plate 141 is automatically closed on the entrance of the slag discharge passage 14 by the gravity of the door plate 141.

Referring to fig. 1, as a specific embodiment of the furnace convenient for slag removal and feeding provided by the present invention, the self-closing door includes a door plate 141, an upper portion of the door plate 141 is hinged to an upper sidewall of an inlet of the slag discharging passage 14, and the door plate 141 hangs down in a free state and closes the inlet of the slag discharging passage 14. The automatic door has the advantages of simple structure, long service life and high reliability.

In this embodiment, the end surface of the inlet end of the slag discharging passage 14 is vertical, the door plate 141 is a vertical flat plate, and the upper portion of the door plate 141 is hinged to the upper side wall of the inlet of the slag discharging passage 14, so that the door plate 141 can swing freely and the inlet of the slag discharging passage 14 is closed in a vertical state after being stationary. When the pushing plate 3 pushes the slag to the inlet of the slag discharging channel 14, the slag can push the door plate 141 to swing into the slag discharging channel 14, so that the inlet of the slag discharging channel 14 is opened, and when the slag falls into the ash storage cavity 13 from the slag discharging channel 14, the door plate 141 returns to be in a vertical state to seal the inlet of the slag discharging channel 14.

Referring to fig. 1, as a specific embodiment of the furnace for facilitating slag removal and feeding provided by the present invention, the furnace for facilitating slag removal and feeding further comprises a driving mechanism 4, wherein the driving mechanism 4 comprises a rotating unit 41, a rotating disk 42, an eccentric shaft 43 and a connecting rod 44.

The rotary disk 42 is fixedly connected with the rotating shaft of the rotating unit 41. The eccentric shaft 43 is provided on the turntable 42. One end of the connecting rod 44 is hinged with the eccentric shaft 43, and the other end is hinged with the pushing head 2.

The driving mechanism 4 can drive the pushing head 2 and the pushing plate 3 to reciprocate, so that the automation of slag removal and pushing is realized, and the driving mechanism 4 has the advantages of simple structure, high reliability and long service life.

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

Referring to fig. 1 and 2, as a specific embodiment of the furnace for facilitating slag removal and feeding provided by the present invention, when the pushing head 2 is retracted into the guiding hole 16 to reach the limit position, the pushing plate 3 divides the fixed grate 11 into a slag pushing area 111 close to the entrance of the slag discharging channel 14 and a retaining area 112 far from the entrance of the slag discharging channel 14. By adopting the structure, when the combustion is carried out in the hearth 12, the combusted fuel is distributed on the slag pushing area 111 and the retaining area 112 of the fixed grate 11, when the pushing head 2 extends out of the guide hole 16, the pushing plate 3 pushes the slag on the slag pushing area 111 into the inlet of the slag discharging channel 14, so that the slag pushing area 111 can be ensured not to remain slag, but the combusted fuel on the slag pushing area 111 can be pushed into the slag discharging channel 14, so that the flame of the slag pushing area 111 is reduced or even extinguished; the push plate 3 does not scrape the retention area 112, the fuel on the retention area 112 can be always kept burning, and then the fuel on the slag pushing area 111 is ignited again, so that the burning can be stably and continuously carried out.

In this embodiment, the limit position of the pushing head 2 retracted into the guiding hole 16 may be determined by providing a limiting structure in the guiding hole 16, or may be determined by the stroke of the driving mechanism 4 driving the pushing head 2 to move. When the pushing head 2 retracts into the guiding hole 16 to reach the limit position, the pushing plate 3 may be located at the middle position of the fixed grate 11, so as to divide the fixed grate 11 into the slag pushing area 111 and the retaining area 112 with the same area, and the pushing plate 3 may also be located closer to the inlet of the slag discharging channel 14, for example, the ratio of the distance from the pushing plate 3 to the fixed grate 11 on the side close to the inlet of the slag discharging channel 14 to the distance from the pushing plate 3 to the fixed grate 11 on the side close to the guiding hole 16 is 1: 2, making the areas of the slag pushing zone 111 and the retaining zone 112 as 1: 2. more specifically, the pushing head 2 in this embodiment can be driven by the driving mechanism 4, and the eccentricity of the eccentric shaft 43 on the rotating disc 42 can be controlled to control the size of the pushing slag area 111 and the size of the retaining area 112.

More specifically, the pushing head 2 in this embodiment can be driven by the driving mechanism 4, and the eccentricity of the eccentric shaft 43 on the rotating disc 42 can be controlled to control the size of the pushing slag area 111 and the size of the retaining area 112.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stove convenient to scarfing cinder pay-off, its characterized in that includes:

2. The furnace convenient for slag removal and feeding as claimed in claim 1, wherein the extension direction of the ash falling gap of the fixed grate is parallel to the pushing direction of the pushing head; the pushing plate is provided with a claw inserted into an ash discharge gap of the fixed furnace, and the claw slides in the ash discharge gap of the fixed furnace grate along with the pushing plate.

3. The furnace convenient for slag removal and feeding as claimed in claim 1, wherein a translation grate with an ash falling gap is arranged between the push plate and the pushing head, and the translation grate moves along with the pushing head and is used for supporting fuel falling from the feed port.

4. The furnace of claim 3, wherein the load bearing surface of said translating grate is not lower than said pusher plate.

5. The furnace of claim 3, wherein the width of the ash discharge gap of the translating furnace is greater than the diameter of the fuel particles.

6. The furnace for facilitating slag removal and feeding of any one of claims 1 to 5, wherein the guiding holes and the entrance of the slag discharge passage are opposite to each other on a plane parallel to the bearing surface of the fixed grate; the lower side edge of the push plate is attached to the bearing surface of the fixed grate.

7. The furnace convenient for slag removal and feeding as claimed in any one of claims 1 to 5, wherein the entrance of the slag discharge passage is provided with a self-closing door which is automatically closed; when the pushing plate pushes the slag, the self-closing door is pushed away by the slag pushed by the pushing plate.

8. The furnace for facilitating slag removal and feeding of claim 7, wherein the self-closing door comprises a door plate, an upper portion of the door plate is hinged to an upper side wall of the inlet of the slag discharge passage, and the door plate hangs down in a free state and closes the inlet of the slag discharge passage.

9. The slag removing and feeding furnace as set forth in claim 1, further comprising a driving mechanism, said driving mechanism comprising:

a rotation unit;

the eccentric shaft is arranged on the rotary table; and

10. The furnace of claim 1, wherein said pusher plate divides said stationary grate into a pushing area near said inlet of said slag discharge passage and a retaining area away from said inlet of said slag discharge passage when said pusher head is retracted into said guide hole to a limit position.