Chain row type slag removal biomass particle combustion furnace

Abstract

The utility model belongs to the technical field of combustion furnaces, and particularly relates to a chain row type slag removal biomass particle combustion furnace which comprises a furnace body, a first inclined table used for guiding materials and a second inclined table used for guiding ash are fixed in the furnace body, at least two sets of feeding mechanisms are arranged on the upper portion of one end of the furnace body, symmetrical fire spraying pipes are arranged on the two sides of the furnace body, and the fire spraying pipes are arranged in the furnace body. The chain plate conveyor is horizontally positioned in the furnace body and is driven by a motor; the chain plate conveyor is used for conveying particles falling from the feeding mechanism to the second inclined table; it can be understood that the ash burning and ash discharging efficiency is improved through the chain plate conveyor, the double-row feeding mechanism increases the depth of the furnace body so as to enhance the burning effect, the oxygen distribution device and the splitter plate ensure uniform oxygen supply, and the baffle prevents particles from entering the oxygen distribution pipe. The ash chamber is located at the bottom of the chain plate conveyor, space is saved, the ash removal mechanism and the ash scraping frame are matched with the positioning columns and the partition plates to quickly remove ash, accumulation is avoided, and ash removal convenience and effect are improved.

Description

Technical Field

[0001] This utility model belongs to the field of combustion furnace technology, and in particular relates to a chain-grate slag-cleaning biomass pellet combustion furnace. Background Technology

[0002] A biomass pellet combustion furnace is a heating device that uses compressed biomass pellets (such as wood chips, straw, etc.) as fuel to generate heat energy through combustion. It is widely used in domestic heating, industrial heating, and agricultural drying. Its working principle includes a feeding system, a combustion system, a heat exchange system, and a flue gas system, offering advantages such as environmental friendliness, high efficiency, economy, and a high degree of automation. Biomass pellet combustion is a carbon-neutral energy source with high combustion efficiency and low operating costs. Modern equipment is often equipped with automatic feeding and control systems, making operation simple. When selecting a furnace, factors such as heating area, fuel type, degree of automation, and emission standards must be considered comprehensively.

[0003] In existing combustion furnaces, after the particles inside are burned, the ash and slag inside are mostly collected by pushing the ash plate back and forth. After cleaning, the material is fed back for combustion. Although the combustion is complete, the ash pushing and feeding are carried out separately, and the efficiency needs to be improved. Secondly, when cleaning the existing ash and slag chamber, manual tools are required to remove the ash and slag from the side, which is not convenient and inefficient.

[0004] To address the aforementioned issues, this application proposes a chain-gutter type slag-cleaning biomass pellet combustion furnace. Utility Model Content

[0005] The purpose of this invention is to provide a chain-grate slag-cleaning biomass pellet combustion furnace, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a chain-grate type biomass pellet combustion furnace, comprising a furnace body, wherein a first inclined platform for guiding material and a second inclined platform for guiding ash are fixed inside the furnace body, at least two sets of feeding mechanisms are provided at the upper part of one end of the furnace body, and symmetrical flame-spraying pipes are provided on both sides of the furnace body, and further comprising:

[0008] A chain conveyor located horizontally inside the furnace body and driven by a motor conveys particles falling from the feeding mechanism to the second inclined platform.

[0009] The ash chamber is located inside the furnace body and below the chain conveyor. The second inclined platform collects the ash from the chain conveyor into the ash chamber.

[0010] An oxygen supply assembly installed in a furnace body and used for oxygen supply when particles are combusted, the oxygen supply assembly is located between the bottom of the first inclined table and the top of the chain plate conveyor and drives airflow to flow along the upper end plane of the chain plate conveyor;

[0011] A slag cleaning mechanism arranged in the ash residue chamber, the slag cleaning mechanism comprises a through-going slag scraping frame, positioning columns fixed on the side of the slag scraping frame, and side plates arranged on the inner wall of the ash residue chamber.

[0012] Further, the oxygen supply assembly comprises an oxygen supply pipe fixed in the furnace body and located between the first inclined table and the chain plate conveyor, and a fan located outside the furnace body and communicated with the oxygen supply pipe through an adapter sleeve, and the oxygen supply pipe is provided with an opening on the side opposite to the chain plate conveyor.

[0013] Further, the oxygen supply pipe is internally fixed with a plurality of flow dividing plates equally dividing the inlet and outlet, and the outlet of the oxygen supply pipe is fixed with a plurality of downward baffles.

[0014] Further, the slag cleaning mechanism further comprises a movable slot formed in the inner side of the side plate and a partition plate fixed in the middle of the movable slot, openings for the positioning columns to pass through are formed between the ends of the partition plate and the side plate, and the positioning columns slide along the outer periphery of the partition plate at the upper and lower ends of the movable slot.

[0015] Further, the movable slot is fixed with an elastic piece at the opening near the end of the ash residue chamber, the elastic piece can lift the positioning column from the bottom to the top of the movable slot.

[0016] Further, the opening of the ash residue chamber forms an upward moving space for the slag scraping frame, and the front end of the slag scraping frame can completely block the opening of the ash residue chamber.

[0017] Further, the feeding mechanism is connected with a hopper, and the side of the ash residue chamber is provided with a manual feeding opening and an observation opening above the chain plate conveyor.

[0018] The utility model has the following beneficial effects:

[0019] The chain plate conveyor is arranged for combustion and ash removal of the ash residue, and the efficiency is higher than that of the push type structure, meanwhile, the double-row feeding mechanism can increase the overall depth of the furnace body and the combustion effect, the oxygen supply to the inside of the furnace body is sufficient and uniform, the flow dividing plates ensure the uniformity of the inlet air, and the baffles prevent particles from entering the oxygen supply pipe, so that the material is fully combusted;

[0020] The ash chamber is arranged at the bottom of the chain plate conveyor, the horizontal space occupied is reduced, the ash chamber inside can be quickly, conveniently and fully discharged through the arranged ash discharging mechanism, the ash discharging convenience is improved, the ash scraping frame can avoid pushing the ash to the bottom of the ash chamber to form accumulation when moving to the ash chamber inside through the cooperation of the positioning column and the partition plate, and the ash discharging effect is ensured.

[0021] Of course, it is not necessary for any product embodying the present application to achieve all of the above advantages simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] Figure 1 It is a schematic view of the overall appearance structure of the present application;

[0024] Figure 2 It is a schematic view of the overall appearance structure of the present application; Figure 1 It is a schematic view of the overall appearance structure of the present application;

[0025] Figure 3 It is a schematic view of the overall appearance structure of the present application;

[0026] Figure 4 It is a schematic view of the overall appearance structure of the present application; Figure 1 It is a schematic view of the overall appearance structure of the present application;

[0027] Figure 5 It is a schematic view of the overall appearance structure of the present application;

[0028] Figure 6 It is a schematic view of the overall appearance structure of the present application;

[0029] Figure 7 It is a schematic view of the overall appearance structure of the present application;

[0030] Figure 8 It is a schematic view of the overall appearance structure of the present application; Figure 7 It is a schematic view of the overall appearance structure of the present application;

[0031] In the drawings, the components represented by each number are listed as follows:

[0032] As shown in the figure, the biomass pellet combustion furnace comprises a furnace body 1, a first inclined table 101 and a second inclined table 102 fixed in the furnace body 1 for guiding material and guiding ash, the upper surfaces of the first inclined table 101 and the second inclined table 102 are both treated to be smooth to ensure smooth flow of pellets and ash, at least two groups of feeding mechanisms 11 for improving feeding speed and uniformity are arranged on the upper part of one end of the furnace body 1, symmetrical flame injection pipes 13 are arranged on both sides of the furnace body 1, the flame injection pipes 13 are also located directly above a chain plate conveyor 14, and the biomass pellet combustion furnace further comprises: DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] Please refer to Figure 1 - Figure 8 As shown in the figure, the biomass pellet combustion furnace comprises a furnace body 1, a first inclined table 101 and a second inclined table 102 fixed in the furnace body 1 for guiding material and guiding ash, the upper surfaces of the first inclined table 101 and the second inclined table 102 are both treated to be smooth to ensure smooth flow of pellets and ash, at least two groups of feeding mechanisms 11 for improving feeding speed and uniformity are arranged on the upper part of one end of the furnace body 1, symmetrical flame injection pipes 13 are arranged on both sides of the furnace body 1, the flame injection pipes 13 are also located directly above a chain plate conveyor 14, and the biomass pellet combustion furnace further comprises:

[0036] The chain plate conveyor 14 horizontally located in the furnace body 1 is driven by a motor, the motor is installed outside the furnace body 1, the chain plate is rotated by a transmission shaft, the chain plate is made of a plurality of narrow metal plates in a local lapping manner, a combustion table is formed at the upper end of the chain plate conveyor 14, the ash will not fall in the middle of the chain plate conveyor 14 due to the local lapping of the metal plates, and the chain plate conveyor 14 conveys the pellets falling from the feeding mechanism 11 to the second inclined table 102;

[0037] The ash chamber 15 is arranged inside the furnace body 1 and below the chain conveyor 14, and the ash on the chain conveyor 14 is collected into the ash chamber 15 through the second inclined table 102;

[0038] The oxygen supply assembly 2 is arranged in the furnace body 1 and used for supplying oxygen when the particles are burned, and the oxygen supply assembly 2 is located between the bottom of the first inclined table 101 and the top of the chain conveyor 14 and drives the airflow to flow along the upper end plane of the chain conveyor 14;

[0039] The ash removal mechanism 3 is arranged in the ash chamber 15, and the ash removal mechanism 3 comprises a scraping frame 31 penetrating through the ash chamber 15 from top to bottom, positioning columns 32 fixed to the side of the scraping frame 31, and side plates 33 arranged on the inner wall of the ash chamber 15.

[0040] The oxygen supply assembly 2 comprises an oxygen supply pipe 21 fixed inside the furnace body 1 and between the first inclined table 101 and the chain conveyor 14, and a fan 22 located outside the furnace body 1 and communicating with the oxygen supply pipe 21 through an adapter sleeve 23, and the oxygen supply pipe 21 is provided with an opening on the side opposite to the chain conveyor 14, and in the embodiment, two groups of the oxygen supply assembly 2 can be arranged in the furnace body 1 to ensure the uniformity of the air inlet.

[0041] The oxygen supply pipe 21 is internally fixed with a plurality of flow dividing plates 24 equally dividing the inlet and outlet, and the outlet of the oxygen supply pipe 21 is fixed with a plurality of downward baffles 25, and in the embodiment, as shown in Figure 7 and Figure 8 The end of the oxygen supply pipe 21 communicating with the adapter sleeve 23 is an air inlet, and the end of the oxygen supply pipe 21 provided with the baffle 25 is an air outlet, and the fan 22 delivers the airflow into the adapter sleeve 23, and then divides the air in the oxygen supply pipe 21 through the flow dividing plates 24, and then blows the air to the upper surface of the chain conveyor 14 from the air outlet of the oxygen supply pipe 21, and the distance between the baffle 25 and the oxygen supply pipe 21 and the distance between adjacent baffles 25 are both less than the diameter of the burning particles, which can ensure the smooth airflow and avoid the particles entering the oxygen supply pipe 21 to cause blockage.

[0042] The ash removal mechanism 3 further comprises a movable groove 34 opened in the inner side of the side plate 33 and a partition plate 35 fixed in the middle of the movable groove 34, and the partition plate 35 is formed with openings at both ends for the positioning columns 32 to pass through, and the positioning columns 32 slide along the outer periphery of the partition plate 35 at the upper and lower ends of the movable groove 34, and in the embodiment, as shown in Figure 6 two enlarged parts, the upper end enlarged part is the front end opening between the partition plate 35 and the side plate 33, and is used for the upward movement of the positioning column 32 under the action of the elastic sheet 36, and the lower end enlarged part is the rear end opening between the partition plate 35 and the side plate 33, and is used for the downward movement of the positioning column 32 after the scraping frame 31 is reset, and after the scraping frame 31 and the positioning column 32 move downward, the bottom of the scraping frame 31 is tightly attached to the ash chamber 15.

[0043] The opening of the ash residue chamber 15 is formed with an upward moving space for the ash scraping frame 31, and the front end of the ash scraping frame 31 can completely block the opening of the ash residue chamber 15. Figure 6 The opening of the ash residue chamber 15 is formed with an upward moving space for the ash scraping frame 31, and the front end of the ash scraping frame 31 can completely block the opening of the ash residue chamber 15.

[0044] The opening of the ash residue chamber 15 is formed with an upward moving space for the ash scraping frame 31, and the front end of the ash scraping frame 31 can completely block the opening of the ash residue chamber 15.

[0045] The opening of the ash residue chamber 15 is formed with an upward moving space for the ash scraping frame 31, and the front end of the ash scraping frame 31 can completely block the opening of the ash residue chamber 15.

[0046] It can be understood that the chain plate conveyor improves the ash residue combustion and ash discharge efficiency, the double-row feeding mechanism increases the depth of the furnace body to enhance the combustion effect, the oxygen supply device and the flow divider ensure uniform oxygen supply, and the baffle prevents particles from entering the oxygen supply pipe. The ash residue chamber is located at the bottom of the chain plate conveyor, saving space, and the ash cleaning mechanism and the ash scraping frame cooperate with the positioning column and the partition plate to quickly clean the ash residue, avoiding accumulation and improving the convenience and effect of ash cleaning.

[0047] One specific application of the embodiment is that the motors of the feeding mechanism 11, the chain plate conveyor 14 and the fan 22 in the utility model can be controlled by the controller and cooperate with each other.

[0048] In use: after the inside of the hopper 12 is filled, the material is transported to the inside of the furnace body 1 through the feeding mechanism 11, the biomass particles are guided to the upper end of the chain plate conveyor 14 under the action of the first inclined table 101 and are burned, in this process, the chain plate conveyor 14 is slowly conveyed by the electrode, and finally the ash is collected in the ash chamber 15 through the second inclined table 102, the heat generated by burning is discharged outward through the flame jet pipe 13 to dry, heat and the like other materials;

[0049] The oxygen supply assembly 2 works: the fan 22 works to guide the external air into the oxygen distribution pipe 21 through the adapter sleeve 23, the airflow is divided by the flow dividing plate 24 in the oxygen distribution pipe 21 and uniformly enters the inside of the furnace body 1, the baffle 25 is arranged to avoid the particles from entering the inside of the oxygen distribution pipe 21 when the particles are discharged, and at the same time, the airflow can be blown to the gap between the particles to make the particles burn more fully and efficiently;

[0050] The ash removal of the ash chamber 15: when the ash is removed, the chain plate conveyor 14 needs to stop working, at this time, the ash removal frame 31 is pulled outwards, the positioning column 32 slides at the lower end of the movable groove 34, the ash removal frame 31 takes out the ash in the ash chamber 15 and discharges it from the opening, when the positioning column 32 moves to the front end, the spring sheet 36 is compressed under the action of the pulling force, the positioning column 32 is separated from the bottom of the partition plate 35, and then the positioning column 32 and the ash removal frame 31 are lifted upwards under the action of the elastic force of the spring sheet 36, at this time, when the ash removal frame 31 is pushed inwards, the positioning column 32 slides along the upper end of the movable groove 34 and the partition plate 35, until the ash removal frame 31 completely enters the inside of the ash chamber 15, the positioning column 32 is separated from the partition plate 35 and enters the bottom of the side plate 33, at this time, the ash removal frame 31 also sinks.

[0051] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details and do not limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A chain grate type slagging biomass pellet combustion furnace comprising a furnace body (1), characterized in that, The first inclined table (101) for material guiding and the second inclined table (102) for ash guiding are fixed inside the furnace body (1), at least two groups of feeding mechanisms (11) are arranged on the upper part of one end of the furnace body (1), and symmetrical flame injection pipes (13) are arranged on the two sides of the furnace body (1), further comprising: A chain plate conveyor (14) is horizontally arranged inside the furnace body (1) and is driven by a motor, and the chain plate conveyor (14) conveys the particles dropped by the feeding mechanism (11) to the second inclined table (102); An ash residue chamber (15) is arranged inside the furnace body (1) and below the chain plate conveyor (14), and the ash residue on the chain plate conveyor (14) is collected into the ash residue chamber (15) through the second inclined table (102); An oxygen supply assembly (2) is arranged in the furnace body (1) and is used for oxygen supply during particle combustion, and the oxygen supply assembly (2) is located between the bottom of the first inclined table (101) and the top of the chain plate conveyor (14) and drives airflow to flow along the upper end plane of the chain plate conveyor (14); A slag removing mechanism (3) is arranged in the ash residue chamber (15), and the slag removing mechanism (3) comprises a scraping frame (31) penetrating up and down, a positioning column (32) fixed on the side of the scraping frame (31), and a side plate (33) arranged on the inner wall of the ash residue chamber (15).

2. A chain and grate type ash removal biomass pellet combustion furnace according to claim 1, characterized in that: The oxygen supply assembly (2) comprises an oxygen supply pipe (21) fixed inside the furnace body (1) and located between the first inclined table (101) and the chain plate conveyor (14), further comprises a fan (22) located outside the furnace body (1) and communicating with the oxygen supply pipe (21) through an adapter sleeve (23), and one side of the oxygen supply pipe (21) opposite to the chain plate conveyor (14) is provided with an opening.

3. A chain and grate type ash removal biomass pellet combustion furnace according to claim 2, characterized in that: A plurality of flow dividing plates (24) are fixedly arranged in the oxygen supply pipe (21) and equally divide the inlet and outlet of the oxygen supply pipe (21), and a plurality of downward baffles (25) are fixedly arranged at the outlet of the oxygen supply pipe (21).

4. A chain and grate type ash removal biomass pellet combustion furnace according to claim 1, characterized in that: The slag removing mechanism (3) further comprises a movable groove (34) formed in the inner side of the side plate (33) and a partition plate (35) fixed in the middle of the movable groove (34), openings are formed between the ends of the partition plate (35) and the side plate (33) and used for the positioning column (32) to pass through, and the positioning column (32) slides up and down on the movable groove (34) along the periphery of the partition plate (35).

5. A chain and bar type ash removal biomass pellet combustion furnace according to claim 4, characterized in that: The movable groove (34) is fixed with an elastic piece (36) at the opening near one end of the ash residue chamber (15), and the elastic piece (36) can lift the positioning column (32) from the bottom to the top of the movable groove (34).

6. A chain and bar type ash removal biomass pellet combustion furnace according to claim 5, characterized in that: An upward moving space for the scraping frame (31) is formed at the opening of the ash residue chamber (15), and the front end of the scraping frame (31) can completely block the opening of the ash residue chamber (15).

7. A chain and bar type ash removal biomass pellet combustion furnace according to claim 1, characterized in that: The feeding mechanism (11) is connected with a hopper (12), and the side of the ash residue chamber (15) is provided with a manual feeding opening (16) and an observation opening (17) above the chain plate conveyor (14).

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