CN219199146U

CN219199146U - Combustion bowl for biomass particle combustion furnace

Info

Publication number: CN219199146U
Application number: CN202320074653.9U
Authority: CN
Inventors: 李洪民; 胡金荣; 庞式军
Original assignee: Shandong Huifa Environmental Protection Technology Co ltd
Current assignee: Shandong Huifa Environmental Protection Technology Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-06-16
Anticipated expiration: 2033-01-09

Abstract

The utility model provides a combustion bowl for a biomass particle combustion furnace, which is characterized by comprising a combustion supporting grate, wherein the upper surface of the combustion supporting grate is a curved surface, and a plurality of ventilation holes which are communicated with the outside up and down are arranged on the combustion supporting grate. The upper surface of the combustion supporting grate of the combustion bowl is curved, so that the combustion supporting area can be increased, and meanwhile, after a certain amount of coke on the curved surface is reached, the coke can slide down from the curved surface under the action of gravity and blowing of air flow, so that the partial automatic decoking function of the combustion supporting grate is realized, and the continuous ventilation effect of the combustion supporting grate is improved.

Description

Combustion bowl for biomass particle combustion furnace

Technical Field

The utility model relates to the technical field of biomass particle combustion furnaces, in particular to a combustion bowl for a biomass particle combustion furnace.

Background

As a heat-taking device, the biomass particle combustion furnace is widely applied to rural areas or areas without heating supply because the biomass particle combustion furnace is convenient to use and operate and the problem of mess and poor surrounding environment in the use process is avoided.

In the prior art, for example, chinese patent publication No. CN210740433U discloses a decoking device and a biomass particle combustion furnace, which mainly comprise a combustion box and a decoking structure. As can be seen from the description and drawings of the patent, the bottom of the combustion box is provided with a perforated plate 91, and the coke removing structure is used for realizing the mechanical removal of the coke on the perforated plate 91. When the combustion furnace is used, the upper plane of the orifice plate 91 is planar, so that the furnace coke is not basically shifted during coking, and the decoking operation is required to be intermittently performed by utilizing the decoking structure in order to ensure the air intake performance of the orifice plate 91. The planar orifice plate 91 is prone to coking and blocking, and the structure of the decoking structure is complex, which increases the manufacturing cost of the burner.

Disclosure of Invention

The utility model aims to provide a combustion bowl for a biomass particle combustion furnace, wherein the upper surface of a combustion supporting grate of the combustion bowl is curved, so that the combustion supporting area can be increased, and meanwhile, after a certain amount of coke on the curved surface is reached, the coke can slide down from the curved surface under the action of gravity and blowing of air flow, thereby realizing the partial automatic decoking function of the combustion supporting grate and improving the continuous ventilation effect of the combustion supporting grate.

The technical scheme adopted for solving the technical problems is as follows: the combustion bowl for the biomass particle combustion furnace comprises a combustion supporting grate, wherein the upper surface of the combustion supporting grate is a curved surface, and a plurality of ventilation holes which are communicated with the outside vertically are formed in the combustion supporting grate.

Preferably, the upper surface of the combustion supporting grate is divided into a left high straight section, a middle arc section and a right low straight section, and the Zuo Gaoping straight section, the middle arc section and the right low straight section are sequentially connected together.

Further, a baffle plate is fixedly arranged on the front side and the rear side of the combustion supporting grate.

Further, a round hole for fixing the ignition rod is arranged on the baffle plate positioned at the rear side of the combustion supporting grate, and the round hole corresponds to the right low straight section.

Further, three rows of ventilation holes distributed along the left-right direction are arranged on the upper surface of the combustion supporting grate, and two ventilation holes adjacent to each other from left to right are distributed in a front-back staggered state.

Further, a clamping groove is arranged at the lower part of the left side of the combustion supporting grate.

The beneficial effects of the utility model are as follows: the utility model has simple structure and convenient processing and manufacturing; the combustion furnace provided with the combustion support bowl does not need to be additionally provided with decoking equipment, so that the processing and manufacturing cost of the combustion furnace can be reduced under the condition of keeping the performance of the combustion furnace unchanged; the upper surface of the combustion supporting grate is curved, so that the combustion supporting area is increased in the effective space, and the full combustion of biomass particles is conveniently realized; in the combustion process, after a certain amount of coke on the curved surface is reached, the coke blocks can slide down from the curved surface under the action of gravity and blowing of the air flow, so that the partial automatic decoking function of the combustion supporting grate is realized, and the lasting ventilation effect of the combustion supporting grate is realized; further, in the actual production process, the curved surface bulge part of the combustion supporting grate is opposite to the outlet end of the feeding auger, so that biomass particles flowing out of the auger continuously can push a coking block positioned at the front side of the discharge end of the biomass particles to move in the feeding auger feeding process, and the coking block can be pushed out of a combustion bowl under intermittent pushing of biomass particles along with the continuous increase of the volume of the coking block, so that the automatic decoking function of the combustion furnace can be realized.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some preferred embodiments of the utility model and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a side view of the overall structure of the present utility model;

FIG. 3 is a longitudinal cross-sectional view of the present utility model;

FIG. 4 is a top view of the present utility model;

FIG. 5 is a schematic view of the installation of the present utility model in a furnace;

in the figure: 1 a combustion supporting grate, 11 an upper surface, 111 a left high straight section, 112 a middle arc section, 113 a right low straight section, 12 a vent hole, 13 a clamping groove, 2 a baffle, 21 a round hole, 3 an ignition rod, 4 a first conveying auger, 5 a second conveying auger, 6 a fixed plate, 7 a vent chamber and 71 a vent pipe.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to specific embodiments and fig. 1 to 5, and it is obvious that the described embodiments are only some of the preferred embodiments of the present utility model, but not all embodiments. Similar modifications can be made by those skilled in the art without departing from the spirit of the utility model, and therefore the utility model is not to be limited by the specific embodiments disclosed below.

The utility model provides a combustion bowl (shown in fig. 1) for a biomass particle combustion furnace, which comprises a combustion supporting grate 1, wherein the upper surface 11 of the combustion supporting grate 1 is a curved surface, and in the specific embodiment, the specific implementation mode that the upper surface 11 is a curved surface is as follows: the upper surface 11 of the combustion support grate 1 is divided into a left high straight section 111, a middle arc section 112 and a right low straight section 113, the Zuo Gaoping straight section 111, the middle arc section 112 and the right low straight section 113 are sequentially connected together, in the practical application process, the combustion support grate 1 is of an integrated casting structure, and the left high straight section 111, the middle arc section 112 and the right low straight section 113 can be formed at one time in the casting process. When the combustion supporting grate 1 supports biomass particles for combustion, the middle arc section 112 is curved, so that the combustion supporting area can be increased, and meanwhile, when the amount of the furnace coke on the middle arc section 112 reaches a certain amount, the furnace coke can slide down from the middle arc section 112 under the blowing of the gravity air inlet flow, so that the self-decoking function is realized, the middle arc section 112 can keep a good ventilation effect for a long time, and the combustion efficiency of the whole combustion bowl is improved; a plurality of ventilation holes 12 which are communicated with the outside from top to bottom are arranged on the combustion supporting grate 1, in practical application, air flow of an air supply system enters from the lower part of the ventilation holes 12 and then flows into the biomass particle pile from the upper part of the ventilation holes 12, and then sufficient oxygen is provided for combustion of biomass particles; in this embodiment, in order to improve the overall oxygen supply effect of the combustion support grate 1, three rows of ventilation holes 12 distributed along the left-right direction are provided on the upper surface 11 of the combustion support grate 1, and two ventilation holes 12 adjacent left-right are distributed in a staggered state, the combustion support grate 1 is provided with three rows of ventilation holes 12, and the ventilation holes 12 adjacent left-right are distributed in a staggered manner, so that the oxygen supply uniformity of the combustion support grate 1 can be ensured, the biomass particles on the combustion support grate 1 can be fully combusted, and further, in the actual processing process, the ventilation holes 12 are distributed in an up-down vertical state, so that some small combustion residues are conveniently discharged from the ventilation holes 12.

In order to prevent the biomass particles and the coke from sliding out from the front side and the rear side of the combustion supporting grate 1, a baffle plate 2 is fixedly arranged on the front side and the rear side of the combustion supporting grate 1, further, in order to facilitate the ignition of the biomass particles in the combustion supporting grate 1 by the ignition rod 3, a round hole 21 for fixing the ignition rod 3 is arranged on the baffle plate 2 positioned on the rear side of the combustion supporting grate 1, and the round hole 21 corresponds to the right low flat section 113.

Further, in order to facilitate the smooth installation of the utility model on the ventilation chamber 7 of the combustion furnace, a clamping groove 13 is arranged at the lower part of the left side of the combustion supporting grate 1, and the clamping groove 13 is clamped on a clamping plate at the upper part of the ventilation chamber 7 in the actual installation process, so that the stable connection between the combustion supporting grate 1 and the ventilation chamber 7 is realized.

In practical application, the utility model is generally arranged above the ventilation chamber 7 of the combustion furnace, the ventilation chamber 7 is fixed on a fixed plate 6, the ventilation chamber 7 is communicated with a ventilation pipe 71, air flows from the ventilation pipe 71 to the ventilation chamber 7 and finally flows out from a through hole 12, the discharge end of the second conveying auger 5 of the combustion furnace is fixed on the fixed plate 6, the middle arc section 112 is right and left opposite to the discharge end of the second conveying auger 5, when more coke blocks exist on the combustion supporting grate 1, the coke blocks are continuously pushed to move towards the left high straight section 111 under the extrusion of the biomass particles along with the continuous conveying auger 5, and finally the coke blocks can drop from the left high straight section 111, so that the self-decoking function of the combustion furnace is realized.

In the present utility model, the terms "front", "rear", "upper", "lower", "left" and "right" are relative positions used for convenience in describing the positional relationship, and thus are not to be construed as limiting the scope of protection as absolute positions.

Other than the technical features described in the specification, all are known to those skilled in the art.

While the preferred embodiments and examples of the present utility model have been described in detail with reference to the accompanying drawings, the present utility model is not limited to the embodiments and examples, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit of the present utility model, and the scope of the utility model is also defined by the appended claims.

Claims

1. The combustion bowl for the biomass particle combustion furnace is characterized by comprising a combustion supporting grate, wherein the upper surface of the combustion supporting grate is a curved surface, and a plurality of ventilation holes which are communicated with the outside up and down are formed in the combustion supporting grate.

2. The combustion bowl for biomass particle combustion furnace according to claim 1, wherein the upper surface of the combustion support grate is divided into a left high straight section, a middle arc section and a right low straight section, and the Zuo Gaoping straight section, the middle arc section and the right low straight section are sequentially connected together.

3. The combustion bowl for a biomass particle combustion furnace according to claim 2, wherein a baffle plate is fixedly arranged on both front and rear sides of the combustion support grate.

4. A combustion bowl for a biomass particle combustion furnace according to claim 3, wherein a circular hole for fixing an ignition rod is provided on a baffle plate located at the rear side of the combustion support grate, and the circular hole corresponds to the right low straight section.

5. The combustion bowl for biomass particle combustion furnace according to claim 2, wherein three rows of the ventilation holes distributed in the left-right direction are provided on the upper surface of the combustion support grate, and two ventilation holes adjacent to each other in the left-right direction are distributed in a staggered state.

6. The combustion bowl for biomass particle combustion furnace according to claim 1, wherein a clamping groove is arranged at the lower left side of the combustion supporting grate.