阅读说明：本技术 一种生物质气的除尘结构 (Dust removal structure of biogas ) 是由 龙莲秀 于 2021-10-28 设计创作，主要内容包括：本发明公开一种生物质气的除尘结构,包括气化炉,用于将生物质气化,第一高效旋风除尘器与所述气化炉连接,用于将生物质气体除尘,降低生物质气体中粉尘含量,第二高效旋风除尘器与第一高效旋风除尘器连接,用于进一步的对生物质气体除尘,高温精密脉冲除尘器,与第二高效旋风除尘器连接,用于高温脉冲除尘。本发明通过设置的双重高效旋风除尘结构和高温脉冲除尘结构的相互配合,大大降低生物质气体中的粉尘含量,生物质气通过双重高效旋风除尘结构除去颗粒相对较大的粉尘,通过高温脉冲除尘结构除去较小颗粒粉尘,保证经过处理的生物质气体重粉尘含量低于5mg/m～(3),满足焦油二次裂解条件。(The invention discloses a dust removal structure of biomass gas, which comprises a gasification furnace, a first high-efficiency cyclone dust collector, a second high-efficiency cyclone dust collector, a high-temperature precision pulse dust collector and a second high-efficiency cyclone dust collector, wherein the gasification furnace is used for gasifying biomass, the first high-efficiency cyclone dust collector is connected with the gasification furnace and is used for removing dust from the biomass gas and reducing the dust content in the biomass gas, the second high-efficiency cyclone dust collector is connected with the first high-efficiency cyclone dust collector and is used for further removing dust from the biomass gas, and the high-temperature precision pulse dust collector is connected with the second high-efficiency cyclone dust collector and is used for removing dust by high-temperature pulses. According to the invention, through the mutual matching of the double high-efficiency cyclone dust removal structure and the high-temperature pulse dust removal structure, the dust content in the biomass gas is greatly reduced, the biomass gas removes relatively large-particle dust through the double high-efficiency cyclone dust removal structure, and small-particle dust is removed through the high-temperature pulse dust removal structure, so that the heavy dust content of the processed biomass gas is ensured to be lower than 5mg/m 3 And meets the secondary cracking condition of tar.)

1. A dust removal structure of living beings gas, its characterized in that includes:

a gasification furnace (100) for gasifying biomass;

the first efficient cyclone dust collector (200) is connected with the gasification furnace (100) and is used for removing dust from the biomass gas and reducing the dust content in the biomass gas;

the second high-efficiency cyclone dust collector (300) is connected with the first high-efficiency cyclone dust collector (200) and is used for further dedusting the biomass gas;

and the high-temperature precise pulse dust collector (400) is connected with the second high-efficiency cyclone dust collector (300) and is used for high-temperature pulse dust collection.

2. The biomass gas dedusting structure as claimed in claim 1, wherein the dust content in the biomass gas gasified by the gasification furnace (100) is more than 5g/m³. Hydrogen sulfide content greater than 25ppm, oxygen content less than 3.5%, tar content of 1-5g/m³。

3. The biogas dust removal structure of claim 1, wherein the dust content of the biogas processed by the first high-efficiency cyclone (200) is controlled to be 3-5g/m³。

4. The biogas dust removal structure of claim 1, wherein the dust content of the biogas processed by the second high-efficiency cyclone (300) is controlled to be 1-3g/m³。

5. The biogas dust removal structure according to claim 1, wherein the dust content of the biogas processed by the high-temperature precise pulse dust collector (400) is controlled to be less than 5mg/m³。

6. The biogas dedusting structure according to claim 1, wherein the first high-efficiency cyclone dust collector (200), the second high-efficiency cyclone dust collector (300) and the high-temperature precision pulse dust collector (400) are connected in series, and the biogas passes through in sequence.

Technical Field

The invention relates to the technical field of biomass purification and dust removal, in particular to a dust removal structure for biomass gas.

Background

Biomass gasification is the most effective method for biomass energy utilization, and gas generated in the biomass gasification process contains a large amount of dust and tar (the dust content is more than 5 g/m)³The tar content is more than 5g/m³) The tar is the biggest obstacle to the subsequent utilization of biomass gasification, pollutes water quality, blocks pipelines and corrodes equipment, and simultaneously contains a large amount of energy, so that the tar must be subjected to secondary cracking in order to fully utilize the biomass gas. The catalytic cracking of tar requires that the gas quality must reach less than 5mg/m of dust³Therefore, a biomass gas dust removal structure is provided.

Disclosure of Invention

Therefore, the invention aims to provide a biomass gas dust removal structure, the dust content in the biomass gas is greatly reduced by the mutual matching of the double high-efficiency cyclone dust removal structure and the high-temperature pulse dust removal structure, the biomass gas removes relatively large-particle dust through the double high-efficiency cyclone dust removal structure, and small-particle dust is removed through the high-temperature pulse dust removal structure, so that the heavy dust content of the processed biomass gas is ensured to be lower than 5mg/m³And meets the secondary cracking condition of tar.

To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:

a biogas dust removal structure, comprising:

a gasification furnace for gasifying biomass;

the first high-efficiency cyclone dust collector is connected with the gasification furnace and is used for removing dust from the biomass gas and reducing the dust content in the biomass gas;

the second high-efficiency cyclone dust collector is connected with the first high-efficiency cyclone dust collector and is used for further removing dust from the biomass gas;

and the high-temperature precise pulse dust collector is connected with the second high-efficiency cyclone dust collector and is used for high-temperature pulse dust collection.

As a preferable scheme of the dust removing structure of the biomass gas, in the biomass gas gasified by the gasifier, the dust content is more than 5g/m³. Hydrogen sulfide content greater than 25ppm, oxygen content less than 3.5%, tar content of 1-5g/m³。

As a preferable scheme of the dust removing structure of the biomass gas, the dust content of the biomass gas treated by the first high-efficiency cyclone dust remover is controlled to be 3-5g/m³。

As a preferable embodiment of the dust removing structure of biomass gas according to the present invention, the second high-efficiency cyclone dust collector is arranged to collect the biomass gas after the biomass gas is treated by the second high-efficiency cyclone dust collectorThe dust content of the gas is controlled to be 1-3g/m³。

As a preferable scheme of the dust removing structure of the biomass gas, the dust content of the biomass gas treated by the high-temperature precise pulse dust remover is controlled to be less than 5mg/m³。

As a preferable scheme of the dust removing structure of the biomass gas, the first high-efficiency cyclone dust remover, the second high-efficiency cyclone dust remover and the high-temperature precision pulse dust remover are connected in series, and the biomass gas sequentially passes through the first high-efficiency cyclone dust remover, the second high-efficiency cyclone dust remover and the high-temperature precision pulse dust remover.

Compared with the prior art, the invention has the beneficial effects that: through the mutual matching of the double high-efficiency cyclone dust removal structure and the high-temperature pulse dust removal structure, the dust content in the biomass gas is greatly reduced, the biomass gas removes relatively large-particle dust through the double high-efficiency cyclone dust removal structure, the small-particle dust is removed through the high-temperature pulse dust removal structure, the heavy dust content of the processed biomass gas is ensured to be lower than 5mg/m, the secondary cracking condition of tar is met, when the biomass gas gasification furnace is used specifically, the biomass is gasified firstly by the gasification furnace to form biomass coarse gas, the biomass coarse gas is transmitted forwards and passes through the first high-efficiency cyclone dust remover and the second high-efficiency cyclone dust remover in sequence, the relatively large-particle dust is removed by the first high-efficiency cyclone dust remover and the second high-efficiency cyclone dust remover, and the biomass gas passing through the first high-efficiency cyclone dust remover and the second high-temperature pulse dust remover is transmitted to the high-temperature precise pulse dust remover, at the moment, the high-temperature precise pulse dust collector removes smaller particle dust, and ensures that the content of the heavy dust of the processed biomass gas is lower than 5mg/m³And the secondary cracking condition of tar is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, 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 without inventive exercise. Wherein:

FIG. 1 is a block diagram of a dust removing structure of biomass gas according to the present invention;

FIG. 2 is a flow chart of a biomass gas dedusting structure according to the present invention.

In the figure: 100. a gasification furnace; 200. a first high-efficiency cyclone dust collector; 300. a second high-efficiency cyclone dust collector; 400. high-temperature precision pulse dust remover.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The invention provides a dust removal structure for biomass gas, which is characterized in that the dust content in the biomass gas is greatly reduced by the mutual matching of a double high-efficiency cyclone dust removal structure and a high-temperature pulse dust removal structure, the biomass gas is subjected to removal of relatively large-particle dust through the double high-efficiency cyclone dust removal structure, and the small-particle dust is removed through the high-temperature pulse dust removal structure, so that the heavy dust content of the processed biomass gas is ensured to be lower than 5mg/m³And meets the secondary cracking condition of tar.

Fig. 1-2 are schematic overall structural views illustrating an embodiment of a biogas dust removing structure according to the present invention, and referring to fig. 1-2, the main body of the embodiment of the biogas dust removing structure includes: a gasification furnace 100, a first high-efficiency cyclone dust collector 200, a second high-efficiency cyclone dust collector 300 and a high-temperature precise pulse dust collector 400.

The gasification furnace 100 is used for gasifying biomass, and specifically, the gasification furnace 100 firstly gasifies the biomass to form biomass raw gas, and the biomass raw gas is conveyed forwards.

First high-efficient cyclone 200 is connected with gasifier 100 for remove dust with biomass gas, reduce dust content among the biomass gas, second high-efficient cyclone 300 is connected with first high-efficient cyclone 200 for further remove dust to biomass gas, specifically, first high-efficient cyclone 200 and second high-efficient cyclone 300 detach the relatively great dust of granule.

The high-temperature precise pulse dust collector 400 is connected with the second high-efficiency cyclone dust collector 300 and used for high-temperature pulse dust collection, specifically, the biomass gas passing through the first high-efficiency cyclone dust collector 200 and the second high-efficiency cyclone dust collector 300 is transmitted to the high-temperature precise pulse dust collector 400, at the moment, the high-temperature precise pulse dust collector 400 removes smaller particle dust, and the heavy dust content of the processed biomass gas is ensured to be lower than 5mg/m³And the secondary cracking condition of tar is ensured.

Referring to fig. 1-2, in the dust removing structure of biogas of this embodiment, when in use, the gasification furnace 100 gasifies the biomass first to form a coarse biomass gas, the coarse biomass gas is transported forward and sequentially passes through the first high-efficiency cyclone dust collector 200 and the second high-efficiency cyclone dust collector 300, the first high-efficiency cyclone dust collector 200 and the second high-efficiency cyclone dust collector 300 remove relatively large-particle dust, the biogas passing through the first high-efficiency cyclone dust collector 200 and the second high-efficiency cyclone dust collector 300 is transported to the high-temperature precise pulse dust collector 400, at this time, the high-temperature precise pulse dust collector 400 removes small-particle dust, and it is ensured that the heavy dust content of the processed biomass gas is lower than 5mg/m³Ensuring the secondary of tarAnd (4) cracking conditions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the embodiments, and any variations or modifications may be made to the embodiments of the present invention without departing from the principles.