Gasification furnace with replaceable furnace pipe

Abstract

The utility model belongs to the field of gasification furnaces, and particularly relates to a gasification furnace with a replaceable furnace pipe, which comprises a furnace body, a feed port arranged on one side of the furnace body, a movable furnace pipe arranged inside the furnace body, a furnace pipe opening arranged on one side of the movable furnace pipe and corresponding to the feed port in position, and a limit ring plate arranged at the upper end of the movable furnace pipe. A furnace pipe hanging plate matched with the limiting ring plate is arranged in the furnace body, and is characterized in that the furnace pipe hanging plate is provided with at least two limiting columns protruding upwards, the limiting ring plate is provided with limiting holes matched with the limiting columns, the limiting columns are different in size, and the limiting holes in the corresponding positions are matched with the limiting columns in size; the side wall of the movable furnace pipe is of a hollow interlayer structure, a partition plate is arranged in an inner cavity of the movable furnace pipe, the upper end of the partition plate is connected with the inner top of the movable furnace pipe, a gap is formed between the lower end of the partition plate and the inner bottom of the movable furnace pipe, a furnace pipe air inlet is formed in the upper portion of the outer side of the side wall of the movable furnace pipe, and a furnace pipe air outlet is formed in the upper portion of the inner side of the side wall of the movable furnace pipe. The combustor has the advantages of being reasonable in structure, flexible and convenient to use and good in combustion-supporting effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of gasification furnace, specifically relates to a gasification furnace with replaceable furnace can. BACKGROUND

[0002] The coal and firewood dual-purpose gasification furnace (combustion furnace) has the advantages of environmental protection and energy saving, and is widely used in rural areas and towns at present. The furnace can and furnace body of the traditional gasification furnace are of integral structure. The furnace can is easily damaged by oxidation and corrosion under the action of high temperature and flue gas after long-term use. The furnace can needs to be replaced with the whole furnace. In order to solve this problem, the technical personnel in the field have developed a gasification furnace with replaceable furnace can. For example, the utility model patent technology with the name of movable furnace can firewood and coal furnace is disclosed by the Chinese patent bureau on August 13, 2003, and the authorization announcement number is CN2566132Y. In the firewood and coal furnace composed of an annular air baffle, a furnace can with a hollow air duct, a furnace body, a furnace bridge, a furnace air port and a vaporizer, the furnace can and the furnace body are arranged in a separated movable coupling structure. The above-mentioned patent technology overcomes the defect that the furnace can and the furnace body are connected into an integral structure, which cannot replace the furnace can and further causes the whole furnace to be scrapped, prolongs the service life of the furnace and reduces the complexity of production, and improves the economy of the whole furnace.

[0003] The gasification furnace with the above-mentioned structure still has the following defects when in use:

[0004] 1) The above-mentioned furnace can adopts top feeding, which is inconvenient to use. With the development of gasification furnace technology, the commonly used gasification furnace is side feeding at present. This requires that a furnace can opening matched with the feeding port be formed on the furnace can. Moreover, after the furnace can is put into the furnace body, the furnace can opening needs to be corresponded with the position of the feeding port. After the furnace can with the above-mentioned structure is put into the furnace body, the feeding port needs to be opened, the furnace can opening needs to be observed, and the furnace can needs to be repeatedly rotated to be aligned. Moreover, in the process of use, the furnace can will be rotated under the action of external force, which causes the furnace can opening and the feeding port to be misaligned, and affects the normal use of the furnace.

[0005] 2) The side wall of the furnace can is a single-layer structure, the preheating effect of the entering air is poor, and the combustion-supporting effect is affected. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a gasification furnace with replaceable furnace can. A limiting device is arranged between the furnace can and the furnace body. The furnace can is installed in place at one time, does not need to be adjusted, and can be aligned with the furnace can opening and the feeding port. The furnace can will not be rotated in the process of use. The furnace can adopts a hollow sandwich structure, the preheating effect of air is good, and the combustion-supporting effect is good.

[0007] The utility model is realized through the following technical schemes:

[0008] The utility model discloses a gasification furnace with replaceable furnace tube, which comprises a furnace body, a feeding port arranged on one side of the furnace body, a movable furnace tube arranged in the furnace body, a furnace tube opening arranged on one side of the movable furnace tube and corresponding to the feeding port, a limiting ring plate arranged at the upper end of the movable furnace tube, and a furnace tube suspension plate arranged in the furnace body and matched with the limiting ring plate.

[0009] The furnace tube suspension plate is provided with two or three limiting columns, and the limiting columns are preferably symmetrically arranged when two limiting columns are adopted, and the limiting columns are equally distributed around the circumference when three limiting columns are adopted.

[0010] The movable furnace tube can be installed in a set direction only due to the different sizes of the limiting columns, so that the furnace tube opening is always matched with the feeding port, and the movable furnace tube cannot be rotated left and right under the action of the limiting columns after installation, so that the furnace tube opening is always matched with the feeding port.

[0011] After the movable furnace tube is installed, the side wall of the furnace tube and the side wall of the furnace body are provided with a gap, air enters the furnace body from the furnace body air inlet at the bottom of the furnace body, flows upwards through the gap, enters the side wall of the furnace tube through the furnace tube air inlet, flows downwards through the gap between the lower end of the partition plate and the inner bottom of the movable furnace tube, flows upwards, and finally enters the furnace tube through the furnace tube air outlet to assist combustion. The air is fully preheated in the above-mentioned flow process, and the combustion assisting effect is improved.

[0012] Further, the upper part of the inner cavity of the movable furnace tube is a conical frustum with a small upper part and a large lower part, that is, the upper part of the inner side of the side wall of the movable furnace tube is an inclined section, the furnace tube air outlet is arranged on the inclined section, and the furnace tube air outlet is inclined towards the inside of the movable furnace tube.

[0013] The furnace tube air outlet of the utility model is inclined towards the inside of the movable furnace tube, and the combustion assisting effect is better.

[0014] Further, the furnace tube air outlet of the utility model is provided with at least one row, and the furnace tube air outlets in each row are evenly and circularly distributed around the inner side of the side wall of the movable furnace tube.

[0015] The furnace tube air outlet of the utility model is preferably provided with 1-3 rows.

[0016] Further, the furnace inlet of the furnace is provided with at least one row, and each row of the furnace inlet is evenly distributed in a circular shape on the outer side of the side wall of the movable furnace.

[0017] The furnace inlet of the furnace is preferably provided with 1-3 rows.

[0018] Further, in order to facilitate the installation and replacement of the movable furnace, the limiting ring plate of the movable furnace is provided with symmetrically installed handles.

[0019] Further, the furnace hanging plate and the limiting ring plate are matched with a sunken structure, the upper end surface of the limiting ring plate is flush with the upper end surface of the furnace hanging plate, and the upper end surface of the limiting column is flush with the upper end surface of the furnace hanging plate.

[0020] Through the above setting, the movable furnace is installed, and the furnace hanging plate inside the furnace body is flush, which is beautiful and elegant.

[0021] The utility model has the advantages of reasonable structure, flexible and convenient use and good combustion effect.

[0022] 1) The movable furnace is replaceable, and the movable furnace is installed in place under the action of the limiting column at a time, without adjustment, and the installation is convenient;

[0023] 2) The movable furnace cannot rotate left and right under the influence of the limiting column during use, so that the opening of the furnace is always corresponding to the position of the inlet;

[0024] 3) The side wall of the furnace body is a hollow sandwich structure, and the preheating time of air is prolonged through the partition, the preheating effect is good, and the air combustion effect is good. DETAILED DESCRIPTION

[0025] Figure 1 It is a half-section structure schematic view of the utility model;

[0026] Figure 2 It is a top view structure schematic view of the movable furnace of the utility model.

[0027] As shown in the figure: 1. leg; 2. lower furnace body; 3. ash bucket; 4. inlet; 5. locking handle; 6. inlet door; 7. upper furnace body; 8. furnace inlet; 9. movable furnace; 10. handle; 11. limiting column; 12. limiting ring plate; 13. chimney mounting base; 14. furnace hanging plate; 15. furnace inlet; 16. partition; 17. furnace outlet; 18. limiting hole. CONCRETE IMPLEMENTATION

[0028] The embodiments of the technical scheme of the utility model will be described below in detail with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and therefore only serve as examples, and cannot limit the protection scope of the utility model. It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be the usual meaning understood by the technical personnel in the field to which the utility model belongs.

[0029] As shown in Figure 1 , Figure 2 : the furnace body is composed of an upper furnace body 7 and a lower furnace body 2 of an integral structure, the lower furnace body 2 is provided with a supporting leg 1 at the bottom, the lower furnace body 2 is provided with a dust hopper 3 at one side, the upper furnace body 7 is provided with a feeding port 4 at one side, the feeding port 4 is provided with a feeding door 6, the feeding door 6 is provided with a locking handle 5, the bottom of the upper furnace body 7 is provided with a row of a plurality of furnace body air inlets 8, the other side of the upper furnace body 7 is provided with a chimney mounting base 13, the inside of the upper furnace body 7 is provided with a movable furnace baffle 9, the inner cavity of the movable furnace baffle 8 is a combustion chamber (furnace hearth), the movable furnace baffle 9 is a cylindrical structure with an upper opening and a lower opening, and the movable furnace baffle 9 is provided with a furnace baffle opening corresponding to the feeding port 4, the upper end of the movable furnace baffle 9 is provided with an annular limiting ring plate 12, the upper furnace body 7 is provided with a furnace baffle suspension plate 14 at the upper part, the furnace baffle suspension plate 14 is horizontally welded in the inside of the upper furnace body 7, the movable furnace baffle 9 is suspended and mounted on the furnace baffle suspension plate 14 through the limiting ring plate 12, the contact part of the furnace baffle suspension plate 14 and the limiting ring plate 12 is a sunken structure, the upper end surface of the limiting ring plate 12 is flush with the upper end surface of the furnace baffle suspension plate 14 after installation, the furnace baffle suspension plate 14 is provided with three limiting columns 11 distributed in equal parts in a circle at the sunken position, the diameters of the three limiting columns are different, the limiting ring plate 12 is provided with limiting holes 18 matched with the limiting columns 11, the upper end surface of the limiting column 11 is flush with the upper end surface of the furnace baffle suspension plate 14, and the limiting ring plate 12 is further provided with two handles 10 symmetrically, the side wall of the movable furnace baffle 9 is a hollow sandwich structure, the inside cavity is provided with a partition plate 16, the upper end of the partition plate 16 is connected with the inner top of the movable furnace baffle 9, and a gap is formed between the lower end of the partition plate 16 and the inner bottom of the movable furnace baffle 9, the upper part of the outer side of the side wall of the movable furnace baffle 9 is provided with two rows of furnace baffle air inlets 15, the upper part of the inner cavity of the movable furnace baffle 9 is a frustum, that is, the upper part of the inner side of the side wall of the movable furnace baffle 9 is an inclined section, the three rows of furnace baffle air outlets 17 are arranged on the inclined section, and the furnace baffle air outlets 17 are inclined to the inside of the movable furnace baffle 9.

[0030] As shown in Figure 1 , the two handles 10 are held, the movable furnace baffle 9 is vertically placed into the inside of the upper furnace body 7, the three limiting columns 11 are respectively inserted into the corresponding limiting holes 18, at this time, the furnace baffle opening of the movable furnace baffle 9 corresponds to the position of the feeding port 4, because the sizes of the three limiting columns are different, the movable furnace baffle 9 can only be installed in a set way, and the movable furnace baffle 9 cannot be installed in place by using other ways, so that the situation that the furnace baffle opening does not correspond to the position of the feeding port 4 is prevented.

[0031] The utility model uses same with prior art gasification furnace when using, only air after preheating combustion-supporting effect is better, air preheating process is as follows: after movable furnace core 9 installation, movable furnace core 9 side wall and upper furnace body 7 side wall are equipped with gap, air enters from furnace body air inlet 8, flows upwards through above-mentioned gap, enters furnace core side wall inside again through two rows of furnace core air inlet 15, air flows downwards through the gap between the lower end of baffle 16 and the inner bottom of movable furnace core 9, flows upwards, finally enters furnace core inside combustion-supporting through 3 rows of furnace core air outlet 17, air is preheated fully in above-mentioned flowing process, improves combustion-supporting effect.

[0032] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model is explained in detail with reference to the above embodiments, those skilled in the art should understand that: it still can modify the technical solutions recorded in the above embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should be covered in the scope of the claims and the specification of the utility model.

Claims

1. A gasification furnace with replaceable furnace tube, comprising a furnace body, one side of the furnace body is provided with a feeding port, the inside of the furnace body is provided with a movable furnace tube, one side of the movable furnace tube is provided with a furnace tube opening corresponding to the position of the feeding port, the upper end of the movable furnace tube is provided with a limiting ring plate, the inside of the furnace body is provided with a furnace tube suspension plate matched with the limiting ring plate, characterized in that The stove hanging plate is provided with at least two upward protruding limiting columns, the limiting ring plate is provided with limiting holes matched with the limiting columns, the limiting columns are different in size, the limiting holes at corresponding positions are matched with the limiting columns in size, the side wall of the movable stove is of a hollow sandwich structure, an inner cavity of the side wall is provided with a partition plate, the upper end of the partition plate is connected with the inner top of the movable stove, and a gap is arranged between the lower end of the partition plate and the inner bottom of the movable stove, the outer side of the upper portion of the side wall of the movable stove is provided with a stove air inlet, and the inner side of the upper portion of the side wall of the movable stove is provided with a stove air outlet.

2. A gasification furnace with replaceable furnace tube according to claim 1, characterized in that The inner cavity of the movable stove is of a taper shape with a small upper portion and a large lower portion, that is, the inner side of the upper portion of the side wall of the movable stove is an inclined section, the stove air outlet is arranged on the inclined section, and the stove air outlet is inclined to the inside of the movable stove.

3. A gasification furnace with replaceable furnace tube according to claim 1 or 2, characterized in that The stove air outlet is provided with at least one row, and the stove air outlets in each row are evenly and circularly distributed on the inner side of the side wall of the movable stove.

4. The gasification furnace of claim 1 or 2, wherein The stove air inlet is provided with at least one row, and the stove air inlets in each row are evenly and circularly distributed on the outer side of the side wall of the movable stove.

5. The gasification furnace of claim 1, wherein The limiting ring plate of the movable stove is provided with symmetrically arranged lifting handles.

6. A gasification furnace with replaceable furnace tube according to claim 1, characterized in that The stove hanging plate and the limiting ring plate are matched with a sunken structure, the upper end surface of the limiting ring plate is flush with the upper end surface of the stove hanging plate, and the upper end surface of the limiting column is flush with the upper end surface of the stove hanging plate.

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