阅读说明：本技术 一种高净化率生物质热解燃气电捕焦油器 (High-purification-rate biomass pyrolysis gas electrical tar precipitator ) 是由 张伟 于 2020-12-21 设计创作，主要内容包括：本发明公开了一种高净化率生物质热解燃气电捕焦油器,包括：筒体,位于其下方的进气口、上方的排气口,筒体内侧位于进气口与排气口之间位置设有管状结构的沉淀极,沉淀极内通道连通进气口与排气口,沉淀极内还设置电极丝,所述沉淀极的内壁上同轴设有倒锥环状部,所述倒锥环状部沿沉淀极长度延伸方向均布设置多个,倒锥环状部中部与电极丝之间留有气通道；所述电极丝上设有用以起晕的芒刺部；所述芒刺部位于上下两倒锥环状部之间。本发明的目的旨在通过对其结构优化,提高其捕获性能。(The invention discloses an electric tar precipitator for high-purification-rate biomass pyrolysis gas, which comprises: the device comprises a cylinder, an air inlet and an air outlet, wherein the air inlet is positioned below the cylinder, the air outlet is positioned above the cylinder, a precipitation electrode with a tubular structure is arranged at the position, between the air inlet and the air outlet, of the inner side of the cylinder, an internal channel of the precipitation electrode is communicated with the air inlet and the air outlet, an electrode wire is also arranged in the precipitation electrode, an inverted cone annular part is coaxially arranged on the inner wall of the precipitation electrode, a plurality of inverted cone annular parts are uniformly distributed along the extension direction of the length of the precipitation electrode, and an air channel is reserved; the electrode wire is provided with a bur part for starting dizzy; the prickle part is positioned between the upper inverted cone annular part and the lower inverted cone annular part. The invention aims to improve the capture performance of the device by optimizing the structure of the device.)

1. An electric tar precipitator for high-purification-rate biomass pyrolysis gas, comprising: the device comprises a cylinder body (1), an air inlet (101) and an air outlet (102) which are positioned below the cylinder body, wherein a precipitation pole (2) with a tubular structure is arranged at a position between the air inlet (101) and the air outlet (102) on the inner side of the cylinder body (1), an inner channel of the precipitation pole (2) is communicated with the air inlet (101) and the air outlet (102), and an electrode wire (3) is further arranged in the precipitation pole (2), and the device is characterized in that an inverted cone annular part (21) is coaxially arranged on the inner wall of the precipitation pole (2), a plurality of inverted cone annular parts (21) are uniformly distributed along the length extension direction of the precipitation pole (2), and an air channel is reserved between the middle part of the inverted cone annular part (21) and; the electrode wire (3) is provided with a bur part for starting dizzy; the prickle part is positioned between the upper and lower inverted cone annular parts (21).

2. The high-purification-rate biomass pyrolysis gas electric tar precipitator according to claim 1, wherein an air guide structure is further arranged between the air inlet (101) and the precipitation electrode (2), and comprises: the inverted cone bucket (11) and a plurality of layers of inverted cone rings (12) positioned above the inverted cone bucket; the air inlet (101) is aligned to the tip of the inverted cone hopper (11), and a liquid discharge pipe (4) penetrating into the inverted cone hopper (11) is arranged outside the barrel body (1); the diameter of a plurality of back taper rings (12) is gradually increased from bottom to top, and the bottom opening of the upper back taper ring (12) is smaller than the opening at the upper end of the lower back taper ring (12) or the back taper hopper (11).

3. The high-purification-rate biomass pyrolysis gas electrical tar precipitator according to claim 2, wherein the outer wall of the inverted cone ring (12) is coaxially provided with an annular groove (13) with a downward opening, and the annular groove (13) on the outer wall of the upper inverted cone ring (12) is located at the opening edge of the upper end of the lower inverted cone ring (12) or the inverted cone hopper (11).

4. The high-purification-rate biomass pyrolysis gas electric tar precipitator according to claim 3, wherein the section of the annular groove (13) is circular arc-shaped.

5. The high-purification-rate biomass pyrolysis gas electric tar precipitator according to any one of claims 1 to 4, wherein the precipitation electrode (2) is formed by a honeycomb shape formed by a plurality of hollow pipes side by side.

6. The high-purification-rate biomass pyrolysis gas electric tar precipitator according to claim 5, wherein the head ends of the bur portions extend in the direction of the intersection of the two intersecting sides of the honeycomb.

7. The high-purification-rate biomass pyrolysis gas electric tar precipitator according to claim 6, wherein the tail end of the bur part is lower than the head end and is fixedly connected to the wire electrode (3).

8. The high-purification-rate biomass pyrolysis gas electrical tar precipitator as claimed in any one of claims 1 to 7, wherein the precipitation electrode (2) is formed by assembling two blocks into a tubular shape.

Technical Field

The invention relates to the technical field of biomass fuel production, in particular to an electric tar precipitator for high-purification-rate biomass pyrolysis gas.

Background

The biomass such as rice hulls, straws and the like can generate combustible biomass pyrolysis gas through a certain pyrolysis process, wherein the combustible gas contains a large amount of substances such as dust, particles, water vapor, tar and the like.

In the related technology, equipment such as a spray tower, a cyclone tower and the like are used for removing tar and the like, and an electric tar precipitator is also adopted, so that the industrial equipment is used for separating impurities such as dust, tar and the like in high-voltage electric field fuel gas under the action of an electric field to collect the impurities such as dust, tar and the like. The working principle is that negative high voltage generated by a high-voltage direct-current power supply is connected to a corona electrode through an insulating box, and a strong electric field is generated between the corona electrode and a precipitation electrode due to the high voltage. The particles such as tar and dust in the fuel gas passing through the electric field are charged in the strong electric field, and the charged particles move to the precipitation electrode under the action of the electric field force. After the particles reach the precipitation electrode, because the precipitation electrode belongs to the anode, the negatively charged particles and the positively charged precipitation electrode are subjected to neutralization reaction, and the neutralized particles are firstly adsorbed to the precipitation electrode and then fall along the precipitation polar plate by virtue of self gravity. Thereby separating particles such as tar, dust and the like in the fuel gas from the gas.

However, the high-voltage electrical trapping structure in the existing electrical tar precipitator is unreasonable, and the trapping of substances such as tar is affected. Therefore, there is a need for improvements to existing electrical tar traps.

Disclosure of Invention

In view of the above, the invention aims to provide an electric tar precipitator for biomass pyrolysis gas with high purification rate, which improves the trapping performance by optimizing the structure.

In order to achieve the above object, the present invention provides an electrical tar precipitator for high purification rate biomass pyrolysis gas, comprising: the device comprises a cylinder, an air inlet and an air outlet, wherein the air inlet is positioned below the cylinder, the air outlet is positioned above the cylinder, a precipitation electrode with a tubular structure is arranged at the position, between the air inlet and the air outlet, of the inner side of the cylinder, an internal channel of the precipitation electrode is communicated with the air inlet and the air outlet, an electrode wire is also arranged in the precipitation electrode, an inverted cone annular part is coaxially arranged on the inner wall of the precipitation electrode, a plurality of inverted cone annular parts are uniformly distributed along the extension direction of the length of the precipitation electrode, and an air channel is reserved; the electrode wire is provided with a bur part for starting dizzy; the prickle part is positioned between the upper inverted cone annular part and the lower inverted cone annular part.

Further, still set up the air guide structure between air inlet and precipitation utmost point, it includes: the inverted cone hopper and a plurality of layers of inverted cone rings positioned above the inverted cone hopper; the air inlet is aligned with the tip of the inverted cone hopper, and a liquid discharge pipe penetrating into the inverted cone hopper is arranged outside the barrel; the diameter of a plurality of back taper ring is the crescent setting from bottom to top, and upper back taper ring bottom opening is less than the opening of lower floor's back taper ring or back taper fill upper end.

Furthermore, the coaxial annular groove that is equipped with opening down on the back taper ring outer wall, the annular groove on the upper back taper ring outer wall is located lower floor's back taper ring or back taper fill upper end opening along department.

Further, the section of the annular groove is arc-shaped.

Further, the precipitation pole is a honeycomb shape formed by a plurality of hollow pipes in parallel.

Furthermore, the head end of the bur part extends towards the intersection point direction of the two intersecting sides on the honeycomb shape.

Furthermore, the tail end of the barbed part is lower than the head end and is fixedly connected to the electrode wire.

Further, the precipitation pole is assembled into a tubular shape by two blocks.

Compared with the prior art, the invention has the beneficial effects that: the capture performance is improved by optimizing the structure of the device. Pyrolysis gas enters from the gas inlet and moves upwards along the inner wall of the precipitation electrode, under the action of a high-voltage electric field of the electrode wire and the high-voltage electric field of the electrode wire, purified gas flow is obtained and discharged from the gas outlet, and liquid drops formed by tar and dust particles flow downwards along the precipitation electrode; especially, the air current upward movement in-process, when meetting back taper annular portion, form the hindrance, guarantee to handle long time, every upward movement once all forms once and hinders, in addition under the effect of the prickle portion between two adjacent back taper annular portions for material ionization such as tar is known thoroughly more, has just improved and has caught the performance.

The air guide structure in the invention ensures that the air quantity at each position of the electric field in the electric catcher is uniformly distributed, thereby improving the catching performance. According to the invention, the annular groove with the downward opening is coaxially arranged on the outer wall of the inverted cone ring, and the annular groove on the outer wall of the upper inverted cone ring is positioned at the opening edge at the upper end of the lower inverted cone ring or the inverted cone hopper, so that certain resistance is formed when the airflow moves upwards along the inverted cone surface in an inclined manner, and the airflow is prevented from moving to the uppermost inverted cone ring.

Drawings

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of the main section of the precipitation pole of FIG. 1 according to the present invention;

FIG. 5 is a schematic cross-sectional view of the structure of FIG. 4 taken along line C-C according to the present invention.

In the figure: 1. a barrel; 2. a precipitation pole; 21. an inverted cone annular portion; 3. a wire electrode; 4. a liquid discharge pipe; 11. a reverse cone hopper; 12. an inverted cone ring; 13. an annular groove; 101. an air inlet; 102. and (7) an exhaust port.

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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, an embodiment of the invention provides an electrical tar precipitator for high-purification-rate biomass pyrolysis fuel gas, including: the gas-liquid separation device comprises a cylinder body 1, a gas inlet 101 and a gas outlet 102, wherein the gas inlet 101 and the gas outlet 102 are arranged below the cylinder body 1, a precipitation pole 2 with a tubular structure is arranged at a position, between the gas inlet 101 and the gas outlet 102, on the inner side of the cylinder body 1, a channel in the precipitation pole 2 is communicated with the gas inlet 101 and the gas outlet 102, a wire electrode 3 is also arranged in the precipitation pole 2, inverted cone annular parts 21 are coaxially arranged on the inner wall of the precipitation pole 2, a plurality of inverted cone annular parts 21 are uniformly distributed along the length extension direction of the precipitation pole 2, and a gas channel is reserved between; the electrode wire 3 is provided with a bur part for starting dizzy; the prickle part is positioned between the upper and lower inverted cone annular parts 21.

In the specific use process, pyrolysis gas enters from the gas inlet 101 and moves upwards along the inner wall of the precipitation electrode 2, under the action of a high-voltage electric field of the wire electrode 3 and the high-voltage electric field of the wire electrode 3, the obtained purified gas flow is discharged from the gas outlet, and liquid drops formed by tar and dust particles flow downwards along the precipitation electrode 2; it is particularly noted that in the upward movement process of the airflow, when the airflow encounters the inverted cone annular parts 21, a barrier is formed, the treatment duration is ensured, and the barrier is formed once when the airflow moves upward once, and in addition, under the action of the bur part between every two adjacent inverted cone annular parts 21, the ionization of substances such as tar and the like is more thoroughly known, so that the capture performance is understandably improved.

In this embodiment, optionally, an air guide structure is further disposed between the air inlet 101 and the precipitation electrode 2, and includes: the inverted cone bucket 11 and a plurality of layers of inverted cone rings 12 positioned above the inverted cone bucket; the precipitation electrode 2 is arranged in the cylinder 1 through an insulating part and is an anode when in use; the electrode wire 3 is arranged in the precipitation electrode 2 in a penetrating way, the upper end and the lower end of the electrode wire are respectively tensioned by the hanging bracket, and the electrode wire is a cathode when in use; an air passage is reserved between the bottom of the upper inverted cone ring 12 and the upper end of the lower inverted cone ring 12 or the inverted cone bucket 11; the air inlet 101 is aligned with the tip of the inverted cone bucket 11, and a liquid discharge pipe 4 penetrating into the inverted cone bucket 11 is arranged outside the barrel 1; the diameter of a plurality of back taper ring 12 is the crescent setting by lower up, and upper back taper ring 12 bottom opening is less than the opening of lower floor's back taper ring 12 or back taper fill 11 upper end, guarantees that liquid can flow to lower floor's back taper ring 12 or back taper fill 11 in from upper back taper ring 12.

Specifically, when the pyrolysis gas passes through the inverted cone bucket 11 and the inverted cone ring 12 from the gas inlet 101 upwards, the pyrolysis gas is uniformly dispersed from the center to the periphery, and a gas passage is reserved between the bottom of the upper inverted cone ring 12 and the upper end of the lower inverted cone ring 12 or the upper end of the inverted cone bucket 11 and enters the gas inlet end at the lower end of the precipitation electrode 2, so that the gas flow is uniformly dispersed; the liquid drops formed by the tar and the dust particles flow downwards along the precipitation pole 2, flow into the inverted cone hopper 11 from the inverted cone rings 12 and finally flow out from the liquid discharge pipe 4. When traditional air inlet was seted up towards one side, the admission flowed through towards one side in a large number, upwards when through deposiing utmost point 2, also can lead to the deposit utmost point 2 of one side to handle much more, and the opposite side is few, and the time is up, handles the many more deposit more impurity of the deposit utmost point 2 of much, influences the treatment effect, the air guide structure in the utility model has just fine solution this problem.

In this embodiment, optionally, an annular groove 13 with a downward opening is coaxially disposed on the outer wall of the inverted cone ring 12, and the annular groove 13 on the outer wall of the upper inverted cone ring 12 is located at the opening edge of the upper end of the lower inverted cone ring 12 or the inverted cone bucket 11. When the airflow moves obliquely upwards along the inverted cone surface, a certain resistance is formed, and the airflow is prevented from moving to the uppermost inverted cone ring 12.

In this embodiment, optionally, the cross section of the annular groove 13 is circular arc. Is beneficial to the air guide.

In this embodiment, optionally, the precipitation electrode 2 is a honeycomb formed by several hollow tubes side by side.

In this embodiment, optionally, the head end of the barbed portion extends toward the intersection of the two intersecting sides of the honeycomb. So that the electric field publication is more reasonable.

In this embodiment, optionally, the end of the barbed portion is lower than the head end, and is fixed to the wire electrode 3. The liquid drops on the bur part can be conveniently guided downwards along the electrode wire 3.

In this embodiment, optionally, the precipitation electrode 2 is assembled into a tubular shape by two pieces. Namely, the electrode is cut open along the length direction, and the electrode wire with the bur part is firstly installed and then assembled to form the precipitation electrode 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.