CN110894429A

CN110894429A - Biomass pyrolysis gas purification device

Info

Publication number: CN110894429A
Application number: CN201911220431.8A
Authority: CN
Inventors: 熊建; 高勇; 杜丽娟; 罗玉琴; 高杰
Original assignee: WUHAN TIANYING ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: WUHAN TIANYING ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-03-20

Abstract

The invention relates to the technical field of pyrolysis gas purification, in particular to a biomass pyrolysis gas purification device which comprises a base, wherein a square groove is formed in the top surface of the base, a square frame is placed in the square groove, a fixing bolt is arranged between the square frame and the base, a cover plate is arranged at the top of the square frame, the square frame is connected with the cover plate through a bolt, an air outlet is formed in the middle of the top end of the cover plate, a hollow discharge hopper is arranged in the square frame, and a one-way exhaust mechanism is arranged on the inclined edge of the discharge. By arranging the discharge hopper, pyrolysis gas is discharged into the discharge hopper, enters the square frame through the exhaust mechanism on the discharge hopper, and is subjected to primary filtration when passing through the exhaust mechanism; when pyrolysis gas enters the square frame, the pyrolysis gas rises through the sieve plate, and at the moment, because water exists on the surface of the sieve plate, the pyrolysis gas is enabled to be bubbled, rise and be discharged, residual tar and dust in the pyrolysis gas can be completely removed, two layers of filtering and purifying are realized, the purifying effect is obvious, and the device is suitable for popularization.

Description

Biomass pyrolysis gas purification device

Technical Field

The invention relates to the technical field of pyrolysis gas purification, in particular to a biomass pyrolysis gas purification device.

Background

Biomass is a general term for combustible organic matters including straws, forest waste, edible fungus residues, cattle, sheep and livestock manure and the like, and biomass energy is utilized by producing high-grade energy such as solid, liquid, gas and the like to replace fossil fuel through a series of conversion technologies by means of thermochemistry, biochemistry and the like, so that terminal energy products such as electric power, traffic fuel, heat energy, fuel gas and the like are provided for human production and life. However, at present, biomass gas still has more bottleneck technologies at home and abroad, such as the problems of high tar content, dust content and the like. These tars can condense on the boiler, the pipes and the inlet devices of the internal combustion engine, affecting the proper operation of the equipment. Therefore, the device for purifying the biomass pyrolysis gas is designed to remove tar and dust in the biomass pyrolysis gas.

Disclosure of Invention

The invention aims to solve the problem that the normal operation of equipment is influenced by the fact that the biomass pyrolysis gas contains tar and is attached to the equipment in the prior art, and provides a purification device for the biomass pyrolysis gas.

In order to achieve the purpose, the invention adopts the following technical scheme:

the design is a biomass pyrolysis gas purification device, which comprises a base, wherein a square groove is formed in the top surface of the base, a square frame is arranged in the square groove, a fixing bolt is arranged between the square frame and the base, a cover plate is arranged at the top of the square frame, the square frame is connected with the cover plate through a bolt, a gas outlet is formed in the middle of the top end of the cover plate, a hollow discharge hopper is arranged in the square frame, a one-way exhaust mechanism is arranged on the inclined edge of the discharge hopper, a gas inlet pipe is arranged on the square frame, one end of the gas inlet pipe is positioned in the discharge hopper, a gas-liquid filtering mechanism is arranged in the square frame and above the discharge hopper, the gas-liquid filtering mechanism comprises a sieve plate fixedly welded in the square frame, three edges of the sieve plate are fixedly welded on the inner wall, the fixed welding in edge of sieve has the riser, be provided with the feed liquor pipe in the apron, the feed liquor pipe is located between riser and the square frame, the below of going out the hopper is provided with oil water separator, oil water separator's import and the export of going out the hopper pass through the hose and link to each other.

Preferably, the exhaust mechanism comprises a cylinder fixedly welded on the inclined edge of the discharge hopper, a loop bar is fixedly welded at the top end of the cylinder, a sleeve is sleeved outside the loop bar, and an umbrella-shaped ceiling is fixedly welded at the top end of the sleeve.

Preferably, a limiting ring is fixedly welded in the cylinder, a filter plate is placed on the limiting ring, the filter plate comprises an activated carbon layer and a cellulose acetate layer, and the cellulose acetate layer is located between the two activated carbon layers.

Preferably, the top surface of the filter plate is provided with a handle.

Preferably, four corners of the bottom surface of the base are fixedly welded with supporting legs.

Preferably, the two ends of the oil-water separator are provided with liquid outlets, a water pump is fixedly mounted on the outer side of the square frame, a water inlet of the water pump is connected with a water inlet pipe, the water inlet pipe penetrates through the liquid outlets of the square frame and the oil-water separator and is connected with the liquid outlets through a flexible rubber pipe, a water outlet pipe is connected to a water outlet of the water pump, and the water outlet pipe is communicated with the liquid inlet pipe.

Preferably, the top ends of the vertical plates are 2-3cm higher than the top surface of the sieve plate, the distance between the bottom ends of the vertical plates and the top surface of the sieve plate below the vertical plates is 2-3cm, and the distance between the vertical plates and the inner wall of the square frame is 2-3 cm.

The biomass pyrolysis gas purification device provided by the invention has the beneficial effects that: the biomass pyrolysis gas purification device discharges pyrolysis gas into the discharge hopper through the discharge hopper, enters the square frame through the exhaust mechanism on the discharge hopper, and is subjected to primary filtration when passing through the exhaust mechanism; when pyrolysis gas enters the square frame, the pyrolysis gas rises through the sieve plate, and at the moment, because water exists on the surface of the sieve plate, the pyrolysis gas is enabled to be bubbled, rise and be discharged, residual tar and dust in the pyrolysis gas can be completely removed, two layers of filtering and purifying are realized, the purifying effect is obvious, and the device is suitable for popularization.

Drawings

FIG. 1 is a schematic structural view of a front view cross section of a biomass pyrolysis gas purification device provided by the invention;

FIG. 2 is a schematic top sectional view of a biomass pyrolysis gas purification apparatus according to the present invention;

FIG. 3 is an enlarged view of the part A of FIG. 1;

FIG. 4 is a schematic cross-sectional structure diagram of a filter plate of a biomass pyrolysis gas purification device provided by the invention.

In the figure: the device comprises a base 1, a square groove 2, a square frame 3, supporting feet 4, a fixing bolt 5, a cover plate 6, an air outlet 7, a discharge hopper 8, an air inlet pipe 9, a sieve plate 10, a vertical plate 11, an oil-water separator 12, a liquid outlet 13, a water pump 14, a liquid inlet pipe 15, a water outlet pipe 16, a water inlet pipe 17, a cylinder 18, a loop bar 19, a sleeve 20, an umbrella-shaped ceiling 21, a filter plate 22, an activated carbon layer 23, a cellulose acetate layer 24, a lifting handle 25 and a limiting ring 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1-4, a living beings pyrolysis gas purifier, including base 1, four corners fixed welding of base 1 bottom surface have supporting legs 4, square groove 2 has been seted up to base 1's top surface, square groove 2 has placed square frame 3, be provided with fixing bolt 5 between square frame 3 and the base 1, under fixing bolt 5's effect, make square frame 3 can dismantle from base 1, make things convenient for the dismantlement maintenance in later stage, square groove 2's setting can be effectual increase the stability of being connected between square frame 3 and the base 1.

The top of square frame 3 is provided with apron 6, pass through bolted connection between square frame 3 and the apron 6, the top middle part of apron 6 is provided with gas outlet 7, be provided with inside hollow play hopper 8 in the square frame 3, be provided with one-way exhaust mechanism on going out the hypotenuse of hopper 8, be provided with intake pipe 9 on the square frame 3, the one end of intake pipe 9 is located out hopper 8, bolted connection between apron 6 and the square frame 3, also made things convenient for the dismantlement maintenance in later stage, supply air in to going out hopper 8 through intake pipe 9, pass through one-way exhaust mechanism discharge play hopper 8 again.

A gas-liquid filtering mechanism is arranged inside the square frame 3 and above the discharge hopper 8, the gas-liquid filtering mechanism comprises a sieve plate 10 fixedly welded inside the square frame 3, three edges of the sieve plate 10 are fixedly welded on the inner wall of the square frame 3, a gap is reserved between the other edge of the sieve plate 10 and the square frame 3, a vertical plate 11 is fixedly welded at the edge of the sieve plate 10, the top end of the vertical plate 11 is 2-3cm higher than the top surface of the sieve plate 10, the distance between the bottom end of the vertical plate 11 and the top surface of the sieve plate 10 below is 2-3cm, the distance between the vertical plate 11 and the inner wall of the square frame 3 is 2-3cm, a liquid inlet pipe 15 is arranged in the cover plate 6, the liquid inlet pipe 15 is positioned between the vertical plate 11 and the square frame 3, an oil-water separator 12 is arranged below the discharge hopper 8, the inlet of the oil-water separator 12 is connected with the outlet of the discharge hopper 8 through, the flow velocity of water flow is controlled, so that the water flow passes through the sieve plate 10 and then overflows the vertical plate 11, the water flow flows to the sieve plate 10 below at the moment, the water flow occupies the clamping space completely when passing through the clamping space between the vertical plate 11 and the inner wall of the square frame 3, liquid is accumulated in the discharge hopper 8 at the moment, the liquid cannot overflow the highest point of the cylinder 18, the pyrolysis gas can only pass through the pore diameter of the sieve plate 10 to move upwards and is mixed with bubbling of the liquid level, and filtering in the maximum degree is achieved.

Example 2

Referring to fig. 3 and 4, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the exhaust mechanism includes a cylinder 18 fixedly welded on the bevel edge of the discharge hopper 8, a loop bar 19 is fixedly welded on the top end of the cylinder 18, a sleeve 20 is sleeved outside the loop bar 19, an umbrella-shaped ceiling 21 is fixedly welded on the top end of the sleeve 20, a limit ring 26 is fixedly welded in the cylinder 18, a filter plate 22 is placed on the limit ring 26, the filter plate 22 includes an activated carbon layer 23 and a cellulose acetate layer 24, the cellulose acetate layer 24 is located between the two activated carbon layers 23, a handle 25 is installed on the top surface of the filter plate 22, the umbrella-shaped ceiling 21 can be taken down under the action of the loop bar 19 and the sleeve 20, and the umbrella-shaped ceiling 21 completely shields the opening of the cylinder 18, water flow cannot enter the discharge hopper 8, and the filter plate 22 realizes the.

Example 3

Referring to fig. 1, as another preferred embodiment of the present invention, the difference from embodiment 1 is that two ends of an oil-water separator 12 are provided with liquid outlets 13, a water pump 14 is fixedly installed on the outer side of a square frame 3, a water inlet of the water pump 14 is connected with a water inlet pipe 17, the water inlet pipe 17 penetrates through the square frame 3 and is connected with the liquid outlets 13 of the oil-water separator 12 through a flexible rubber hose, a water outlet of the water pump 14 is connected with a water outlet pipe 16, the water outlet pipe 16 is communicated with a liquid inlet pipe 15, and the oil-water separator 12 is arranged to realize oil-water separation, filter grease in water, recycle clean water, and reduce resource.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The biomass pyrolysis gas purification device is characterized by comprising a base (1), wherein a square groove (2) is formed in the top surface of the base (1), a square frame (3) is placed in the square groove (2), a fixing bolt (5) is arranged between the square frame (3) and the base (1), a cover plate (6) is arranged at the top of the square frame (3), the square frame (3) is connected with the cover plate (6) through a bolt, a gas outlet (7) is arranged in the middle of the top end of the cover plate (6), a hollow discharge hopper (8) is arranged in the square frame (3), a one-way exhaust mechanism is arranged on the bevel edge of the discharge hopper (8), a gas inlet pipe (9) is arranged on the square frame (3), one end of the gas inlet pipe (9) is positioned in the discharge hopper (8), a gas-liquid filtering mechanism is arranged in the square frame (3) and above the discharge hopper (8), the gas-liquid filtering mechanism comprises a sieve plate (10) fixedly welded inside a square frame (3), three sides of the sieve plate (10) are fixedly welded on the inner wall of the square frame (3), a gap is reserved between the other side of the sieve plate (10) and the square frame (3), a vertical plate (11) is fixedly welded at the edge of the sieve plate (10), a liquid inlet pipe (15) is arranged in a cover plate (6), the liquid inlet pipe (15) is located between the vertical plate (11) and the square frame (3), an oil-water separator (12) is arranged below a discharge hopper (8), and the inlet of the oil-water separator (12) is connected with the outlet of the discharge hopper (8) through a hose.

2. The biomass pyrolysis gas purification device according to claim 1, wherein the exhaust mechanism comprises a cylinder (18) fixedly welded on the bevel edge of the discharge hopper (8), a loop bar (19) is fixedly welded at the top end of the cylinder (18), a sleeve (20) is sleeved outside the loop bar (19), and an umbrella-shaped ceiling (21) is fixedly welded at the top end of the sleeve (20).

3. The device for purifying the pyrolyzed biomass gas according to claim 2, wherein a limiting ring (26) is fixedly welded in the cylinder (18), a filter plate (22) is placed on the limiting ring (26), the filter plate (22) comprises an activated carbon layer (23) and a cellulose acetate layer (24), and the cellulose acetate layer (24) is located between the two activated carbon layers (23).

4. A device for purifying pyrolysis gas of biomass according to claim 3, characterized in that the top surface of the filter plate (22) is provided with a handle (25).

5. The biomass pyrolysis gas purification device according to claim 1, wherein the four corners of the bottom surface of the base (1) are fixedly welded with supporting legs (4).

6. The biomass pyrolysis gas purification device according to claim 1, wherein liquid outlets (13) are formed in two ends of the oil-water separator (12), a water pump (14) is fixedly installed on the outer side of the square frame (3), a water inlet of the water pump (14) is connected with a water inlet pipe (17), the water inlet pipe (17) penetrates through the square frame (3) and is connected with the liquid outlets (13) of the oil-water separator (12) through a soft rubber pipe, a water outlet of the water pump (14) is connected with a water outlet pipe (16), and the water outlet pipe (16) is communicated with a liquid inlet pipe (15).

7. The device for purifying the biomass pyrolysis gas as claimed in claim 1, wherein the top ends of the vertical plates (11) are 2-3cm higher than the top surface of the sieve plate (10), the distance between the bottom ends of the vertical plates (11) and the top surface of the sieve plate (10) below is 2-3cm, and the distance between the vertical plates (11) and the inner wall of the square frame (3) is 2-3 cm.