Biomass gasification fuel gas purifier

Abstract

The utility model discloses a biomass gasified fuel gas purifier which is characterized in that a gas distribution bin and a purification bin are arranged, and a plurality of conveying pipelines are uniformly distributed between the bottom of the gas distribution bin and the top of the purification bin, so that biomass fuel gas flows to the purification bin along the conveying pipelines after being introduced into the gas distribution bin; biomass gas can be divided into a plurality of parts through the conveying pipeline, the cooling interlayer is arranged on the conveying pipeline, the biomass gas is cooled through the cooling interlayer, tar molecules can be condensed, follow-up tar removal is facilitated, the partition plate with the holes is arranged in the purification bin, and the filter purification layer is arranged on the partition plate with the holes, so that the purification effect is improved. When the biomass gas passes through the filtering and purifying layer, tar can be adsorbed and filtered by the filtering and purifying layer, and the subsequent biomass gas is discharged out of the biomass gasification gas purifier through the gas outlet.

Description

Technical Field

[0001] The utility model belongs to the field of biomass gas equipment, and in particular relates to a biomass gasification gas purifier. Background Art

[0002] Biomass gasification produces tar during the gasification process. Tar is gaseous at high temperatures and easily mixes with the gasification gas. However, it condenses into a liquid at low temperatures, which can easily clog gas pipelines and hinder the operation of gasification equipment. Furthermore, the combustion of tar also produces particulate matter, which can damage gas utilization equipment. Therefore, the gas needs to be purified to remove the tar. Currently, methods used include showering and filtering. For example, the biomass gas purifier and gasification purification device proposed in Chinese Utility Model Publication No. CN214300020U uses this method, which is relatively cumbersome and inefficient. Utility Model Content

[0003] (1) Technical problem to be solved: In view of the defects of the existing technology that the showering and filtering methods are relatively complicated in terms of process and the purification process is relatively low in efficiency, the utility model provides a biomass gasification fuel gas purifier that can improve the purification efficiency.

[0004] (2) The technical solutions adopted by this utility model are as follows:

[0005] A biomass gasification gas purifier comprises a gas distribution bin and a purification bin, wherein a plurality of conveying pipes are evenly distributed between the bottom of the gas distribution bin and the top of the purification bin, and each conveying pipe is connected to the gas distribution bin and the purification bin, and a cooling interlayer is provided on the conveying pipe, and a liquid inlet and a liquid outlet are provided on the cooling interlayer, and a gas inlet is provided on the gas distribution bin, a perforated partition is provided in the purification bin, and a filtering and purification layer is provided on the perforated partition, and a gas outlet is provided on the purification bin, and the gas outlet pipe is positioned lower than the perforated partition.

[0006] A further technical solution is that the liquid outlet of the previous cooling interlayer is connected to the liquid inlet of the next cooling interlayer through a pipeline, a liquid inlet pipe is provided at the liquid inlet of the first cooling interlayer, a first flange is provided at the end of the liquid inlet pipe, and a liquid outlet pipe is provided at the liquid outlet of the last cooling interlayer, a second flange is provided at the end of the liquid outlet pipe.

[0007] A further technical solution is that the lower end of the delivery pipeline is located in the purification chamber, and a tapered tube is provided at the lower end of the delivery pipeline.

[0008] A further technical solution is that an auger is provided inside the conveying pipe or partitions are staggeredly provided on both sides of the conveying pipe.

[0009] A further technical solution is that a window is opened on the side wall of the purification chamber, and a cover plate is provided at the window.

[0010] A further technical solution is that an air inlet pipe is provided at the gas inlet, and a third flange is provided at the end of the air inlet pipe; an air outlet pipe is provided at the gas outlet, and a fourth flange is provided at the end of the air outlet pipe.

[0011] A further technical solution is that the filtration and purification layer is made of dolomite material.

[0012] (3) Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: by setting up a gas distribution bin and a purification bin, and evenly distributing a plurality of conveying pipes between the bottom of the gas distribution bin and the top of the purification bin, after the biomass gas enters the gas distribution bin, it flows along the conveying pipe to the purification bin, and the biomass gas can be divided into multiple parts through the conveying pipe. Moreover, since a cooling interlayer is provided on the conveying pipe, the cooling interlayer is used to cool the biomass gas, which can condense the tar molecules, and is beneficial to the subsequent removal of the tar. Since a perforated partition is provided in the purification bin, and a filtering and purification layer is provided on the perforated partition, when the biomass gas passes through the filtering and purification layer, the filtering and purification layer can adsorb and filter the tar, and the subsequent biomass gas is discharged from the biomass gasification gas purifier through the gas outlet. Compared with the prior art, the present invention divides the gas into multiple streams for cooling first, which has a better cooling effect and a faster speed, and then concentrates the gas in the purification bin for adsorption and filtration, which can not only ensure the purification effect, but also make the process more concise and the purification efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a side view structural diagram of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure inside the gas distribution bin of the utility model;

[0016] Figure 4 It is a schematic structural diagram of the cooling interlayer of the utility model;

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the three-dimensional model of the utility model;

[0018] Figure 6 This is a structural diagram of the three-dimensional model of the utility model from the first perspective;

[0019] Figure 7 It is a structural schematic diagram of the second viewing angle of the three-dimensional model of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1-Figure 7 A biomass gasification gas purifier includes a gas distribution bin 1 and a purification bin 2. Multiple delivery pipes 3 are evenly distributed between the bottom of the gas distribution bin 1 and the top of the purification bin 2. Each delivery pipe 3 connects the gas distribution bin 1 and the purification bin 2. A cooling interlayer 4 is provided on the delivery pipe 3. The cooling interlayer 4 is provided with a liquid inlet 5 and a liquid outlet 6. The gas distribution bin 1 is provided with a gas inlet 7. A perforated partition 8 is provided in the purification bin 2. A filter and purification layer 9 is provided on the perforated partition 8. A gas outlet 10 is provided on the purification bin 2. A gas outlet pipe 21 is positioned below the perforated partition 8.

[0022] During use, an air inlet pipe 19 is provided at the gas inlet port 7, a third flange 20 is provided at the end of the air inlet pipe 19, an air outlet pipe 21 is provided at the gas outlet port 10, and a fourth flange 22 is provided at the end of the air outlet pipe 21. The biomass gas that needs to be purified is introduced into the air inlet pipe 19 and then collected from the air outlet pipe 21. After the biomass gas enters the gas distribution bin 1, it flows along the conveying pipe 3 to the purification bin 2. The biomass gas can be divided into multiple parts through the conveying pipe 3. The cooling interlayer 4 is used to cool the biomass gas, which can condense the tar molecules, which is conducive to the subsequent removal of tar through the filtering and purification layer 9. The filtering and purification layer 9 can absorb and filter the tar. In actual use, the filtering and purification layer 9 can be replaced regularly to ensure the continuous tar removal effect.

[0023] The liquid outlet 6 of the front cooling interlayer 4 is connected to the liquid inlet 5 of the rear cooling interlayer 4 through a pipeline. A liquid inlet pipe 12 is provided at the liquid inlet 5 of the first cooling interlayer 4, and a first flange 11 is provided at the end of the liquid inlet pipe 12. A liquid outlet pipe 13 is provided at the liquid outlet 6 of the last cooling interlayer 4, and a second flange 14 is provided at the end of the liquid outlet pipe 13. When in use, the cooling medium (cooling water or cooling oil) is passed into the cooling interlayer 4. Since the cooling interlayers 4 on all the conveying pipelines 3 are connected in series, the cooling medium can pass through all the cooling interlayers 4. The flow of the cooling medium can take away the heat of the biomass gas and reduce its temperature.

[0024] The lower end of the delivery pipe 3 is located in the purification chamber 2, and a tapered pipe 15 is provided at the lower end of the delivery pipe 3. Due to the provision of the tapered pipe 15, the flow rate of the biomass gas can be accelerated when passing through the tapered pipe 15, thereby further playing a role in cooling.

[0025] The conveying pipe 3 is provided with an auger 17 or partitions 16 are staggeredly provided on both sides of the conveying pipe 3. The auger 17 or the partitions 16 can lengthen the path of the gas flowing in the conveying pipe 3, which is beneficial to cooling the biomass gas.

[0026] A window is provided on the side wall of the purification chamber 2 , and a cover plate 18 is provided at the window. The cover plate 18 is connected to the purification chamber 2 by bolts. After removing the cover plate 18 , the filter purification layer 9 can be easily replaced.

[0027] The filtration and purification layer 9 is made of dolomite material, and the filtration and purification layer 9 can also be replaced by adsorption materials such as activated carbon.

[0028] The above are only preferred embodiments of the present invention.

Claims

1. A biomass gasification fuel gas purifier, characterized in that: The invention comprises an air distribution bin (1) and a purification bin (2), wherein a plurality of conveying pipes (3) are evenly arranged between the bottom of the air distribution bin (1) and the top of the purification bin (2), and each conveying pipe (3) is connected to the air distribution bin (1) and the purification bin (2), and a cooling interlayer (4) is arranged on the conveying pipe (3), and a liquid inlet (5) and a liquid outlet (6) are arranged on the cooling interlayer (4), and a gas inlet (7) is arranged on the air distribution bin (1), and a perforated partition (8) is arranged in the purification bin (2), and a filtering and purification layer (9) is arranged on the perforated partition (8), and a gas outlet (10) is arranged on the purification bin (2), and the gas outlet pipe (21) is located below the perforated partition (8).

2. The biomass gasification fuel gas purifier according to claim 1, characterized in that: The liquid outlet (6) of the preceding cooling interlayer (4) is connected to the liquid inlet (5) of the following cooling interlayer (4) through a pipeline. A liquid inlet pipe (12) is provided at the liquid inlet (5) of the first cooling interlayer (4), and a first flange (11) is provided at the end of the liquid inlet pipe (12). A liquid outlet pipe (13) is provided at the liquid outlet (6) of the last cooling interlayer (4), and a second flange (14) is provided at the end of the liquid outlet pipe (13).

3. The biomass gasification fuel gas purifier according to claim 1, characterized in that: The lower end of the delivery pipe (3) is located in the purification chamber (2), and a tapered pipe (15) is provided at the lower end of the delivery pipe (3).

4. The biomass gasification fuel gas purifier according to claim 1, characterized in that: An auger (17) is provided inside the delivery pipe (3), or partitions (16) are staggeredly provided on both sides of the delivery pipe (3).

5. The biomass gasification fuel gas purifier according to claim 1, characterized in that: A window is provided on the side wall of the purification chamber (2), and a cover plate (18) is provided at the window.

6. The biomass gasification fuel gas purifier according to claim 1, characterized in that: An inlet pipe (19) is provided at the gas inlet (7), and a third flange (20) is provided at the end of the inlet pipe (19). An outlet pipe (21) is provided at the gas outlet (10), and a fourth flange (22) is provided at the end of the outlet pipe (21).

7. The biomass gasification fuel gas purifier according to claim 1, characterized in that: The filtering and purification layer (9) is made of dolomite material.

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