Electrical tar precipitator

Abstract

The invention relates to the technical field of coal gas purification equipment, in particular to an electrical tar precipitator. Comprising a vertical cylinder, a gas inlet, an upper suspender, an upper hanger, a lower suspender, a lower hanger and a corona wire, the coal gas inlets are symmetrically and fixedly connected to the lower portion of the barrel and comprise coal gas pipes and ammonia water pipes, the coal gas pipes extend into the barrel, the ammonia water pipes extend into the coal gas pipes, spray heads are arranged at the ends of the ammonia water pipes, and sprayed ammonia water is mixed with coal gas in a parallel flow mode. The upper hanging bracket is hung in the barrel body through the upper hanging rod and is positioned at the upper part of the barrel body; the lower hanging bracket is hung at the bottom of the upper hanging bracket through a lower hanging rod; the upper hanging bracket and the lower hanging bracket are integrally of a rigid structure; the two ends of the corona wire are connected with the upper hanging bracket and the lower hanging bracket through bolts. Tar fog drops can be enlarged and are easy to capture; corona wires are always kept in the middle, and tar removal efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal gas purification equipment, in particular to an electric tar collector. Background Art

[0002] In the coking industry, the raw gas from the coke oven contains a large amount of tar particles, which will clog the equipment of the subsequent gas purification device. At the same time, coal tar is also a high value-added coking by-product. Therefore, the tar in the raw gas must be captured during the coking gas purification process.

[0003] In the traditional coking process, an electrostatic precipitator is usually used to capture tar particles. However, the existing electrostatic precipitator has at least the following defects and shortcomings: (1) there is no mixing device at the gas inlet, and the tar droplets are small and difficult to capture; (2) the corona wire is suspended by a heavy hammer, and it is not easy to center the corona wire due to the influence of airflow, which affects the tar removal efficiency. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides an electric tar collector, which can enlarge the tar droplets and make them easier to capture; the corona wire always remains centered, thereby improving the tar removal efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An electric tar precipitator comprises a vertical cylinder, a gas inlet, an upper hanging rod, an upper hanger, a lower hanging rod, a lower hanger and a corona wire; the gas inlet is symmetrically fixed to the lower part of the cylinder, the gas inlet comprises a gas pipe and an ammonia pipe, the gas pipe extends into the cylinder, the ammonia pipe extends into the gas pipe, and a nozzle is provided at the end to spray ammonia and gas in parallel; the upper hanger is suspended in the cylinder by the upper hanging rod and is located at the upper part of the cylinder; the lower hanger is suspended at the bottom of the upper hanger by the lower hanging rod; the upper hanger and the lower hanger are rigid structures as a whole; the two ends of the corona wire are connected to the upper hanger and the lower hanger by bolts.

[0007] Furthermore, it also includes an inclined bottom, a bottom plate, a tar outlet, a gas distribution plate, a precipitation electrode, a feeder box, an insulation box, a top cover, a gas outlet, an insulation box, an ammonia spray pipe, and an ammonia spray port;

[0008] Furthermore, the cylinder is fixed to the bottom plate, the inclined bottom is fixed to the cylinder, and is located at the bottom; the tar outlet and the ammonia spraying port are fixed to the cylinder, and are located at the lower and higher ends of the inclined plate; the gas distribution plate is fixed to the cylinder, and is located between the lower hanger and the gas inlet; the top cover is fixed to the top of the cylinder, and the gas outlet, insulation box, manhole and ammonia spraying pipe are fixed to the top cover; the feeder box and the upper hanger are fixed to the insulation box; the precipitation electrode is located between the upper hanger and the lower hanger. .

[0009] Furthermore, the gas distribution plate is a two-layer plate with holes opened on it.

[0010] Furthermore, the lower hanger includes a lower hanger outer ring, a vertical beam, a horizontal beam, a connecting piece and a lower hanger adjustment hook; the vertical beam and the horizontal beam are fixedly connected in the lower hanger outer ring; the vertical beam is provided with a long hole, and the connecting piece and the lower hanger adjustment hook are bolted to the vertical beam through the long hole; the connecting piece is provided with a long hole, and the connecting piece is bolted to the lower hanger rod through the long hole; one end of the lower hanger adjustment hook is provided with an external thread.

[0011] Furthermore, the precipitation electrode is a regular hexagonal honeycomb panel, the center of the regular hexagon is a corona wire or a lower suspension rod; the upper part of the precipitation electrode is a tube sheet, which is fixed to the internal bracket of the cylinder through positioning pins, and the verticality of the precipitation electrode is adjusted by adjusting bolts.

[0012] Furthermore, the upper hanger includes a main beam, an upper hanger outer ring, an upper hanger adjustment hook and a support beam; the main beam is fixedly connected to the inner side of the upper hanger outer ring, the support beam is fixedly connected to the bottom surface of the main beam, and both ends of the support beam are connected to the upper hanger outer ring; the support beam is provided with a long hole, and the upper hanger adjustment hook is connected to the support beam bolts through the long hole.

[0013] Furthermore, the top end of the corona wire is connected to the upper hanger adjusting hook through bolts, nuts and washers, and the bottom end is connected to the lower hanger adjusting hook through bolts, nuts and washers.

[0014] Furthermore, the lower suspension rod is connected to the upper suspension bracket and the lower suspension bracket, and is provided with external threads at both ends, and is fixed to the upper suspension bracket and the lower suspension bracket by nuts.

[0015] Furthermore, the lower suspension rod is fully externally threaded or is provided with a longitudinal groove or a thorn tip.

[0016] Furthermore, the corona wire comprises a collar, a corona wire, a clamp and a tube; the corona wire is inserted into the tube; the corona wire is wound around the outside of the collar, and the corona wire is fixed by the clamp.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The two gas inlets of the present invention are symmetrically fixed to the lower part of the cylinder, the gas pipe extends into the cylinder, the ammonia pipe extends into the gas pipe, and a nozzle is provided at the end to spray ammonia and mix with the gas in parallel; after the gas and ammonia are mixed, the gas enters the two symmetrically arranged gas inlets, and the ammonia forms atomized tiny droplets at the nozzle outlet. At the same time, the gas accelerates the atomized droplets and carries the droplets into the impact zone, and an impact surface is formed in the middle of the electric tar collector, forming a highly turbulent and mass transfer-enhanced impact zone. In the impact surface area, the tiny droplets atomized and dispersed by the nozzle and the gas can reach a very high relative velocity, forming a highly turbulent impact zone. In a system where the liquid phase is a dispersed phase, the collision between droplets or between phases generates shear force to cause the droplets to break, so that the surface area of ​​the droplets increases, thereby increasing the mass transfer rate; the jets collide with each other, generating strong radial and axial turbulent velocity components, so that good mixing can be formed in the impact zone. The small tar droplets in the gas are mixed with the ammonia water under the action of the ammonia water, and collide with each other and gradually become larger.

[0019] 2. The lower hanger of the present invention is hung at the bottom of the upper hanger through the lower hanger rod; the upper hanger and the lower hanger are rigid structures as a whole; the two ends of the corona wire are connected to the upper hanger and the lower hanger by bolts. The position of the corona wire is not affected by the gas, and the corona wire is connected to the upper and lower hangers by bolts, which can be easily adjusted to the center of the precipitation electrode, ensuring the tar removal efficiency.

[0020] 3. The lower suspension rod of the present invention not only plays a rigid connection role, but also plays a role in removing tar from the corona wire. Full threads, longitudinal grooves or thorn tips are added to the threads at both ends of the lower suspension rod to ensure that the lower suspension rod also plays a corona role when the corona wire is at corona voltage.

[0021] 4. The gas distribution plate of the present invention has two layers, each layer is a perforated plate with holes, and the lower part has a supporting beam. After the gas from bottom to top passes through the gas distribution plate, the airflow is evenly distributed and enters the precipitation electrode, while removing part of the tar in the gas.

[0022] 5. The top of the corona wire of the present invention is connected to the upper hanger adjustment hook through bolts, nuts and washers, and the bottom is connected to the lower hanger adjustment hook through bolts, nuts and washers. By adjusting the bolt position, the corona wire can be ensured to be tensioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic front view of the structure of the present invention.

[0024] Figure 2 for Figure 1 AA section view.

[0025] Figure 3 for Figure 1 BB cross-sectional view.

[0026] Figure 4 It is a schematic diagram of the lower hanger structure of the present invention.

[0027] Figure 5 for Figure 4 CC cross-sectional view.

[0028] Figure 6 for Figure 4 DD cross-sectional view.

[0029] Figure 7 It is a schematic diagram of the upper hanger structure of the present invention.

[0030] Figure 8 for Figure 7 EE cross-sectional view.

[0031] Fig. 9 This is a schematic front view of a structure of a lower suspension rod of the present invention.

[0032] Fig.10 The figure is a schematic top view of a structure of a lower suspension rod of the present invention.

[0033] Fig.11 It is a schematic front view of another structural form of the lower suspension rod of the present invention.

[0034] Fig.12 It is a schematic top view of another structural form of the lower suspension rod of the present invention.

[0035] Fig.13 It is a schematic diagram of the corona wire structure of the present invention.

[0036] Fig.14 It is a schematic diagram of the connection between the corona wire and the upper and lower hangers of the present invention.

[0037] In the figure: 1- inclined bottom 2- bottom plate 3- tar outlet 4- gas inlet 5- cylinder 6- gas distribution plate 7- lower hanger 8 precipitation electrode 9- connecting pipe 10- upper hanger 11- feeder box 12- first insulation box 13- top cover 14- gas outlet 15 second insulation box 16- manhole 17- ammonia spray pipe 18- upper hanger 19- lower hanger 20- corona wire 21- ammonia spray port 31- first straight pipe section 32- elbow 33- ammonia inlet pipe 34- installation Port 35-second straight pipe section 36-sprinkler 41-lower hanger flat steel ring 42-vertical flat steel beam 43-horizontal flat steel beam 44-connector 45-lower hanger adjustment hook 46-bolt 47-nut 61-first main beam 62-second main beam 63-third main beam 64-lower hanger connecting hole 65-upper hanger connecting hole 66-upper hanger flat steel ring 67-upper hanger adjustment hook 68-support beam 81-ring 82-corona wire 83-clamp 84-seamless steel pipe DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below. In order to make the purpose, 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 in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the description of the present invention, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0044] like Figure 1-14 As shown, an electric tar precipitator includes an inclined bottom 1, a bottom plate 2, a tar outlet 3, a gas inlet 4, a cylinder 5, a gas distribution plate 6, a lower hanger 7, a precipitation electrode 8, a connecting pipe 9, an upper hanger 10, a feeder box 11, a first insulating box 12, a top cover 13, a gas outlet 14, a second insulating box 15, a manhole 16, an ammonia spraying pipe 17, an upper hanger 18, a lower hanger 19, a corona wire 20 and an ammonia spraying port 21.

[0045] The bottom plate 2 is a horizontal plate, the cylinder 5 is a vertical cylinder, the cylinder 5 is vertically arranged and vertically fixed to the top surface of the bottom plate 2 , and the top cover 13 is fixed to the top of the cylinder 5 .

[0046] The inclined bottom 1 is fixedly connected to the cylinder 5 at the bottom. The tar outlet 3 and the ammonia spraying port 21 are fixedly connected to the cylinder wall of the cylinder 5 at the inclined bottom 1. The tar outlet 3 is located at the lower end above the inclined bottom 1, and the ammonia spraying port 21 is located at the higher end above the inclined plate.

[0047] The two gas inlets 4 are symmetrically arranged, fixed to the wall of the cylinder 5, and located above the ammonia water spraying port 21. The gas distribution plate 6 is fixed inside the cylinder 5, and located above the gas inlets 4.

[0048] The gas outlet 14 is fixed to the top center of the top cover 13, the first insulation box 12 and the second insulation box 15 are fixed to the top cover 13, the first insulation box 12 and the second insulation box 15 are fixed to the gas outlet 14 evenly distributed around the circumference, and the feeder box 11 is connected to the insulation box. The manhole 16 and the ammonia spray pipe 17 are fixed to the top cover 13.

[0049] The top of the upper suspension rod 18 is connected to the insulation box, and the bottom is connected to the upper hanger 10. The upper hanger 10 is suspended in the cylinder 5 through the upper suspension rod 18 and is located at the upper part. The lower hanger 7 is suspended at the bottom of the upper hanger 10 through the lower suspension rod 19; the upper hanger 10 and the lower hanger 7 are rigid structures as a whole; the upper and lower ends of the corona wire 20 are connected to the upper hanger 10 and the lower hanger 7 by bolts. The connecting pipe 9 is fixed to the wall of the cylinder 5 and is located at the upper part, located on both sides of the upper tube plate of the precipitation electrode 8.

[0050] like Figure 2 As shown, the gas inlet 4 includes a first straight pipe section 31, an elbow 32, an ammonia water inlet pipe 33, a mounting port 34, a second straight pipe section 35 and a nozzle 36. The first straight pipe section 31 and the second straight pipe section 35 are fixedly connected to the two ends of the elbow 32, and the second straight pipe section 35 is fixedly connected to the cylinder wall of the cylinder 5 and extends into the cylinder 2. The first straight pipe section 31, the elbow 32 and the second straight pipe section 35 are gas pipes, the mounting port 34 is fixedly connected to the outer wall of the elbow 32, the ammonia water inlet pipe 33 is installed in the mounting port 34, and extends into the elbow 32 and the second straight pipe section 35, and the ammonia water inlet pipe 33 is an ammonia water pipe. The nozzle 36 adopts an anti-blocking nozzle to ensure the stable operation of the ammonia water spraying system. The end of the ammonia water inlet pipe 33 is connected to the nozzle 36, and the nozzle 36 sprays ammonia water and coal gas in parallel. The small tar droplets in the coal gas are mixed with ammonia water under the action of ammonia water, and collide with each other and gradually become larger. The two gas inlets 4 are arranged symmetrically. After the gas and ammonia water are mixed, they collide with each other in the middle of the equipment, and the tar droplets in the gas become larger. Some large tar droplets are deposited to the inclined bottom by gravity, and the rest are further removed upward.

[0051] The gas distribution plate 6 is composed of two layers, upper and lower, each layer is evenly perforated, and a support beam is provided at the bottom. After the gas from bottom to top passes through the gas distribution plate, the gas flow is evenly distributed and enters the precipitation electrode, while removing part of the tar in the gas.

[0052] like Figure 4-6 As shown, the lower hanger 7 includes a lower hanger flat steel ring 41, a vertical flat steel beam 42, a horizontal flat steel beam 43, a connecting piece 44, a lower hanger adjustment hook 45, a bolt 46, and a nut 47. A plurality of vertical flat steel beams 42 are arranged longitudinally, parallel to each other and fixed in the lower hanger flat steel ring 41; a plurality of horizontal flat steel beams 43 are arranged transversely, parallel to each other and fixed in the lower hanger flat steel ring 41; the vertical flat steel beam 42 and the horizontal flat steel beam 43 are perpendicular to each other. The connecting piece 44 and the lower hanger adjustment hook 45 are fixed to the vertical flat steel beam 42.

[0053] The vertical flat steel beam 42 has oblong holes along the length direction of the flat steel beam, which are used to adjust the vertical position of the connecting piece 44 and the lower hanger adjustment hook 45. The connecting piece 44 has a circular hole at the connection with the vertical flat steel beam 42, which is fixed with bolts and nuts, and an oblong hole at the connection with the lower hanger rod 19, which is used to adjust the horizontal position. The end of the lower hanger adjustment hook 45 is threaded, which is fixed to the vertical flat steel beam 42 by a nut, and the horizontal position of the structure is adjusted by the length of the thread at the end of the lower hanger adjustment hook 45.

[0054] The precipitation electrode 8 is a regular hexagonal honeycomb plate, and the center of the regular hexagon is the corona wire 20 or the lower suspension rod 19. The upper part of the precipitation electrode is a tube sheet, which is fixed to the internal bracket of the cylinder 5 by a positioning pin, and the verticality of the precipitation electrode is adjusted by adjusting bolts.

[0055] like Figure 7 , Figure 8 As shown, the upper hanger 10 includes a first main beam 61, a second main beam 62, a third main beam 63, an upper hanger flat steel ring 66, an upper hanger adjustment hook 67 and a support beam 68. The first main beam 61 is four oblique beams, fixedly connected in the upper hanger flat steel ring 66 to form a diamond beam. The second main beam 62 is arranged longitudinally, and the third main beam 63 is arranged transversely and fixedly connected in the diamond beam.

[0056] The main beam and the supporting beam 68 can be made of steel or spliced ​​with steel plates. The bottom surface of the main beam is a plane, the upper surface of the supporting beam 68 is fixed to the bottom surface of the main beam, the two ends of the supporting beam 68 are connected to the flat steel ring 66 of the upper hanger, and the end of the main beam is connected to the flat steel ring 66 of the upper hanger. The main beams are connected by connecting plates or bolts and nuts.

[0057] The first main beam 61 is provided with a lower suspension rod connection hole 64 and an upper suspension rod connection hole 65. The support beam 68 is provided with an oblong hole along the length direction of the support beam, which is used to adjust the vertical position of the upper suspension bracket adjustment hook 67. The upper suspension bracket adjustment hook 67 has a threaded end, which is fixed to the support beam 68 by a nut, and the horizontal position of the structure is adjusted by the thread length of the end of the upper suspension bracket adjustment hook 67. The lower suspension rod connection hole 64 is an enlarged circular hole, and the position of the lower suspension rod is adjusted by a washer.

[0058] like Figure 9-12 As shown, the lower suspension rod 19 connects the upper and lower hangers, is made of round steel, has threads at both ends, is fixed with nuts to the upper and lower hangers, and has an adjustable length. After the lower suspension rod 19 is connected, the upper and lower hangers form a rigid structure. The lower suspension rod 19 not only plays a rigid connection role, but also plays a role in removing tar from the corona wire. Full threads, longitudinal grooves or thorn tips are added to the threads at both ends of the lower suspension rod to ensure that the lower suspension rod also acts as a corona wire when the corona voltage is applied. Fig. 9 , Fig.10 It is a lower suspension rod with longitudinal grooves. Fig.11 and 12 It is a lower suspension rod with a thorny tip.

[0059] like Fig.13 As shown, the corona wire 20 includes a collar 81, a corona wire 82, a clamp 83 and a seamless steel pipe 84. The inner diameter of the seamless steel pipe 84 is larger than the outer diameter of the corona wire 82, and the corona wire 82 is inserted into the collar 81. The inner diameter of the collar 81 is larger than the diameter of the adjusting hook, and the corona wire 82 is wound around the collar 81 and fixed with the clamp 83. After the corona wire 20 is installed, the seamless steel pipe 84 is downwardly moved by gravity, and is located at the lower part of the corona wire 20, and is located at half the distance inside and outside the lower part of the precipitation electrode 8, to ensure that the corona wire 20 is continuous.

[0060] like Fig.14 As shown, the corona wire 20 is fixed to the upper hanger adjustment hook 67 and the lower hanger adjustment hook 45 respectively with bolts, nuts and washers. The positions of the bolts are adjusted to ensure that the corona wire 20 is tensioned.

[0061] The working principle and working process of the present invention are as follows:

[0062] During installation, first make the equipment body, install the bottom gas inlet 4, install the gas distribution plate 6, put in the lower hanger 7, then hoist the precipitation electrode 8, and adjust the positioning and verticality of the precipitation electrode 8, then put in the upper hanger 10, and finally hoist the equipment top cover 13, then install the insulation box, adjust the upper hanger 18, and then adjust the position of the upper hanger 10 to ensure that the upper hanger 10 is horizontal, and adjust the position of the upper hanger adjustment hook 67 to the center of the honeycomb of the precipitation electrode 8. First install the lower hanger 19, adjust the lower hanger 19 to the center of the honeycomb of the precipitation electrode 8, and connect and fix it with the lower hanger 7, adjust the position of the lower hanger 7, adjust the position of the lower hanger adjustment hook 45 to the center of the honeycomb of the precipitation electrode 8, and then install the corona wire 20, and adjust the corona wire 20 to the center of the honeycomb of the precipitation electrode 8.

[0063] The coal gas enters two symmetrically arranged coal gas inlets 4, and the ammonia water forms atomized tiny droplets at the outlet of the nozzle 36. At the same time, the coal gas accelerates the atomized droplets and carries the droplets into the impact zone. A collision surface is formed in the middle of the electric tar collector, forming a highly turbulent and mass transfer-enhanced impact zone. In the impact surface area, the tiny droplets dispersed by the nozzle atomization and the coal gas can reach a very high relative velocity, forming a highly turbulent impact zone. In a system where the liquid phase is a dispersed phase, the collision between droplets or between phases generates shear force to break the droplets, increase the surface area of ​​the droplets, and thus increase the mass transfer rate; the jets collide with each other, generating strong radial and axial turbulent velocity components, so that good mixing can be formed in the impact zone. The small tar droplets in the coal gas are mixed with the ammonia water under the action of the ammonia water, and collide with each other and gradually become larger.

[0064] The tar droplets in the coal gas further grow larger as they collide with each other in the middle of the device. Some large tar droplets are deposited to the inclined bottom 1 by gravity, and the rest enter the two-layer coal gas distribution plate 6 upward. Part of the tar is removed, and the coal gas evenly enters the precipitation electrode 8 upward along the coal gas distribution plate 6. Inside the precipitation electrode 8, the tar droplets in the coal gas combine with electrons and deposit on the precipitation electrode 8, and flow downward to the bottom of the device by gravity. The lower hanger 19 and the upper hanger 18 use the lower hanger 19 as a rigid structure, and the corona wire 20 is easy to fix and remains at the center of the precipitation electrode 8 under the action of the coal gas, so the tar removal efficiency is high.

[0065] During operation, when the voltage and current of the electro-tar capture fluctuate, hot ammonia water is used to wash the tar deposited on the precipitation electrode 8 or the corona wire 20 from the top to ensure stable operation of the equipment. The bottom of the equipment is also regularly washed with hot ammonia water to remove the deposited tar through the inclined bottom 1. The coal gas with tar mist removed is further purified upward through the coal gas outlet 14.

[0066] The coal gas inlet 4 of the present invention uses ammonia water to wash the coal gas, and the tar droplets become larger. The lower hanger 7 is fixed by the lower hanger rod 19, and the upper and lower hangers are integrally formed into a rigid structure, which is not affected by the coal gas. The corona wire 20 is connected to the upper and lower hangers by bolts, and is easily adjusted to be located at the center of the precipitation pole. The lower hanger rod 19 uses full threads, longitudinal grooves or thorns to ensure that the corona is generated simultaneously with the corona wire 20, thereby improving the tar removal efficiency.

[0067] The above descriptions are only some specific implementation methods of the present invention, and the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. An electric tar collector, characterized in that: It includes a vertical cylinder, a gas inlet, an upper hanging rod, an upper hanging bracket, a lower hanging rod, a lower hanging bracket and a corona wire; The gas inlet is symmetrically fixed to the lower part of the cylinder, and includes a gas pipe and an ammonia water pipe. The gas pipe extends into the cylinder, and the ammonia water pipe extends into the gas pipe, and a nozzle is provided at the end to spray ammonia water and gas in parallel. The upper hanger is hung in the cylinder through the upper hanger rod and is located at the upper part of the cylinder; the lower hanger is hung at the bottom of the upper hanger through the lower hanger rod; the upper hanger and the lower hanger are rigid structures as a whole; The two ends of the corona wire are connected with the upper hanger and the lower hanger by bolts.

2. The electric tar collector according to claim 1, characterized in that: It also includes a sloping bottom, a bottom plate, a tar outlet, a gas distribution plate, a settling pole, a feeder box, an insulating box, a top cover, a gas outlet, an insulating box, an ammonia spray pipe, and an ammonia spray port; The cylinder is fixedly connected to the bottom plate, and the inclined bottom is fixedly connected to the cylinder and is located at the bottom; the tar outlet and the ammonia water spraying port are fixedly connected to the cylinder and are located at the lower end and the higher end of the inclined plate; The gas distribution plate is fixedly connected to the cylinder and is located between the lower hanger and the gas inlet; The top cover is fixedly connected to the top of the cylinder, and the gas outlet, insulation box, manhole and ammonia spray pipe are fixedly connected to the top cover; The feed box and the upper suspension rod are fixedly connected to the insulation box; the precipitation pole is located between the upper suspension bracket and the lower suspension bracket.

3. The electric tar collector according to claim 2, characterized in that: The gas distribution plate is a two-layer plate with holes opened on it.

4. The electric tar collector according to claim 1, characterized in that: The lower hanger comprises a lower hanger outer ring, a vertical beam, a horizontal beam, a connecting piece and a lower hanger adjustment hook; The vertical beam and the horizontal beam are fixedly connected to the outer ring of the lower hanger; The vertical beam is provided with a long hole, and the connecting piece and the lower hanger adjustment hook are connected to the vertical beam bolts through the long hole; The connecting piece is provided with an elongated hole, and the connecting piece is connected to the lower suspension rod bolt through the elongated hole; One end of the lower hanger adjusting hook is provided with an external thread.

5. The electric tar collector according to claim 1, characterized in that: The precipitation pole is a regular hexagonal honeycomb plate, and the center of the regular hexagon is a corona wire or a lower suspension rod; The upper part of the precipitation electrode is a tube sheet, which is fixed to the internal bracket of the cylinder through positioning pins, and the verticality of the precipitation electrode is adjusted by adjusting bolts.

6. The electric tar collector according to claim 1, characterized in that: The upper hanger comprises a main beam, an upper hanger outer ring, an upper hanger adjustment hook and a support beam; The main beam is fixedly connected to the outer ring of the upper hanger, the supporting beam is fixedly connected to the bottom surface of the main beam, and the two ends of the supporting beam are connected to the outer ring of the upper hanger; The support beam is provided with a long hole, and the upper hanger adjustment hook is connected with the support beam bolt through the long hole.

7. An electric tar precipitator according to claim 4 or 6, characterized in that: The top end of the corona wire is connected to the upper hanger adjusting hook through bolts, nuts and washers, and the bottom end is connected to the lower hanger adjusting hook through bolts, nuts and washers.

8. The electric tar collector according to claim 1, characterized in that: The lower suspension rod is connected to the upper suspension bracket and the lower suspension bracket, and is provided with external threads at both ends, and is fixed to the upper suspension bracket and the lower suspension bracket by nuts.

9. The electric tar collector according to claim 8, characterized in that: The lower suspension rod is fully externally threaded or is provided with a longitudinal groove or a thorn tip.

10. The electric tar collector according to claim 1, characterized in that: The corona wire comprises a collar, a corona wire, a clamp and a tube; A corona wire is inserted into the tube; A corona wire is wound around the outside of the sleeve ring, and the corona wire is fixed by a clamp.

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