Electrical tar precipitator

Abstract

The utility model 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 utility model relates to the technical field of coal gas purification equipment, in particular to an electric tar collector. Background Art

[0002] In the coking industry, coke oven raw gas contains large amounts of tar particles, which can clog subsequent gas purification equipment. Furthermore, coal tar is a high-value coking byproduct. Therefore, tar capture in the raw gas is essential during the coking gas purification process.

[0003] In traditional coking processes, electric precipitators (ECPs) are commonly used to capture tar particles. However, existing EPCs have at least the following drawbacks and deficiencies: (1) There is no mixing device at the gas inlet, resulting in small tar droplets that are difficult to capture; and (2) The corona wire is suspended by a weight, which is affected by airflow and makes it difficult to center the wire, thus affecting tar removal efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides an electric tar collector, which can enlarge 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 purpose, the present invention adopts the following technical solutions:

[0006] An electric tar precipitator comprises a vertical cylinder, a gas inlet, an upper suspension rod, an upper hanger, a lower suspension 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 for parallel mixing; the upper hanger is suspended in the cylinder by the upper suspension 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 suspension rod; the upper hanger and the lower hanger are a rigid structure 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 a sloping 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, and the inclined bottom is fixed to the cylinder, located at the bottom; the tar outlet and the ammonia spray port are fixed to the cylinder, located at the lower end and the high end of the inclined plate; the gas distribution plate is fixed to the cylinder, 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 spray pipe are fixed to the top cover; the feed 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] Further, the coal gas distribution plate is a two-layer plate with holes.

[0010] Further, the lower hanger comprises a lower hanger outer ring, a vertical beam, a horizontal beam, a connecting piece and a lower hanger adjusting 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 adjusting hook are bolted with the vertical beam through the long hole; the connecting piece is provided with a long hole, and the connecting piece is bolted with the lower hanger through the long hole; one end of the lower hanger adjusting hook is provided with an external thread.

[0011] Further, the precipitation electrode is a regular hexagonal honeycomb plate, and the center of the regular hexagon is a corona wire or a lower hanger; an upper part of the precipitation electrode is a tube plate, the tube plate is fixed with an inner support of a cylinder through a positioning pin and adjusted in perpendicularity through an adjusting bolt.

[0012] Further, the upper hanger comprises a main beam, an upper hanger outer ring, an upper hanger adjusting hook and a support beam; the main beam is fixedly connected in the upper hanger outer ring, the support beam is fixedly connected to a bottom surface of the main beam, and both ends of the support beam are connected with the upper hanger outer ring; the support beam is provided with a long hole, and the upper hanger adjusting hook is bolted with the support beam through the long hole.

[0013] Further, the top end of the corona wire is connected with the upper hanger adjusting hook through a bolt, a nut and a gasket, and the bottom end of the corona wire is connected with the lower hanger adjusting hook through a bolt, a nut and a gasket.

[0014] Further, the lower hanger is connected with the upper hanger and the lower hanger, and both ends are provided with external threads and fixed with the upper hanger and the lower hanger through nuts.

[0015] Further, the lower hanger is provided with a longitudinal groove or a thorn tip.

[0016] Further, the corona wire comprises a sleeve ring, a corona wire, a clamp and a tube; the corona wire is inserted into the tube; the sleeve ring is wrapped outside the corona wire, and the corona wire is fixed by the clamp.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. The present invention features two symmetrically fixed gas inlets at the bottom of the cylinder. A gas pipe extends into the cylinder, and an ammonia pipe extends into the pipe. A nozzle is located at the end of the pipe, spraying ammonia and gas for co-flow mixing. After mixing, the gas enters the two symmetrically arranged gas inlets. The ammonia forms atomized droplets at the nozzle outlets, simultaneously accelerating the atomized droplets and carrying them into the impact zone. A collision surface forms in the center of the electrostatic precipitator, creating a highly turbulent impact zone that enhances mass transfer. Within the impact surface, the tiny droplets dispersed by the nozzles and the gas can reach very high relative velocities, forming a highly turbulent impact zone. In a system where the liquid phase is the dispersed phase, collisions between droplets or between phases generate shear forces that cause droplet fragmentation, increasing the droplet surface area and thus the mass transfer rate. The impact of the jets generates strong radial and axial turbulent velocity components, resulting in excellent mixing in the impact zone. Small tar droplets in the gas mix with the ammonia solution under the action of the ammonia, and gradually grow larger through collision.

[0019] 2. The lower hanger of this utility model is suspended from the bottom of the upper hanger via a lower hanger rod. The upper and lower hangers are integrally rigid structures. The ends of the corona wire are connected to the upper and lower hangers via bolts. The position of the corona wire is unaffected by gas, and the bolted connection between the corona wire and the upper and lower hangers allows for easy adjustment to the center of the precipitation electrode, ensuring efficient tar removal.

[0020] 3. The lower suspension rod of the utility model plays the role of rigid connection and also plays the role of corona wire tar removal. 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 generates corona when the corona wire is at corona voltage.

[0021] 4. The gas distribution plate of this utility model consists of two layers, each layer is a perforated plate with a support beam at the bottom. After the gas flows upward through the gas distribution plate, the airflow is evenly distributed and enters the precipitation electrode, while removing some tar from the gas.

[0022] 5. The top of the corona wire is connected to the upper hanger adjustment hook via bolts, nuts, and washers, while the bottom is connected to the lower hanger adjustment hook via bolts, nuts, and washers. By adjusting the bolt positions, the corona wire can be kept tight. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic front view of the structure of the utility model.

[0024] Figure 2 for Figure 1 AA cross-sectional view.

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

[0026] Figure 4 This is a schematic diagram of the lower hanger structure of the utility model.

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

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

[0029] Figure 7 This is a schematic diagram of the upper hanger structure of the utility model.

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

[0031] Figure 9 This is a schematic front view of a structure of a lower suspension rod of the utility model.

[0032] Figure 10 This is a schematic top view of a structure of a lower suspension rod of the utility model.

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

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

[0035] Figure 13 This is a schematic diagram of the corona wire structure of the utility model.

[0036] Figure 14 This is a schematic diagram of the connection between the corona wire and the upper and lower hangers of the utility model.

[0037] In the figure: 1 - Sloped 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 - Nozzle 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 conjunction 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 in no way 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 making creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 a communication between the internal parts of two components.

[0041] For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0042] 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, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless otherwise specifically indicated. Meanwhile, it should be clear that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods, and devices should be considered as part of the authorized description. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so further discussion is not needed in subsequent drawings once an item is defined in one drawing.

[0044] In addition, it should be noted that the use of the words "first", "second", and the like to qualify parts is merely for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0045] As shown in Figure 1-14 A precipitator, comprising 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 communication pipe 9, an upper hanger 10, a feeder box 11, a first insulation box 12, a top cover 13, a gas outlet 14, a second insulation box 15, a manhole 16, an ammonia water spraying pipe 17, an upper hanger rod 18, a lower hanger rod 19, a corona wire 20, and an ammonia water spraying port 21.

[0046] The bottom plate 2 is a horizontal plate, and the cylinder 5 is a vertical cylinder, which is vertically arranged and fixedly connected to the top surface of the bottom plate 2, and the top cover 13 is fixedly connected to the top of the cylinder 5.

[0047] The inclined bottom 1 is fixedly connected to the inside of the cylinder 5 and located at the bottom. The tar outlet 3 and the ammonia water 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 low end above the inclined bottom 1, and the ammonia water spraying port 21 is located at the high end above the inclined plate.

[0048] The two gas inlets 4 are symmetrically arranged and fixedly connected to the cylinder wall of the cylinder 5 and located above the ammonia water spraying port 21. The gas distribution plate 6 is fixedly connected to the inside of the cylinder 5 and located above the gas inlet 4.

[0049] The gas outlet 14 is fixedly connected to the top center of the top cover 13, the first insulation box 12 and the second insulation box 15 are fixedly connected to the top cover 13, the first insulation box 12 and the second insulation box 15 are circumferentially fixedly connected around the gas outlet 14, and the feeder box 11 is connected with the insulation box. The manhole 16 and the ammonia water spraying pipe 17 are fixedly connected to the top cover 13.

[0050] The upper hanger rod 18 is connected with the insulating box at the top end and with the upper hanger 10 at the bottom end. The upper hanger 10 is hung in the cylinder 5 through the upper hanger rod 18 and is located at the upper part. The lower hanger 7 is hung at the bottom of the upper hanger 10 through the lower hanger rod 19. The upper hanger 10 and the lower hanger 7 are rigid structures as a whole. The corona wire 20 is connected with the upper hanger 10 and the lower hanger 7 through bolts at the upper and lower ends. The communication pipe 9 is fixed to the cylinder wall of the cylinder 5 and is located at the upper part and at both sides of the pipe plate at the upper part of the precipitation electrode 8.

[0051] As shown in Figure 2 , the gas inlet 4 comprises 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 spray head 36. The first straight pipe section 31 and the second straight pipe section 35 are fixed to the two ends of the elbow 32, and the second straight pipe section 35 is fixed 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 fixed to the outer wall of the elbow 32, and 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. The ammonia water inlet pipe 33 is an ammonia water pipe. The spray head 36 is a anti-blocking spray head, which ensures the stable operation of the ammonia water spraying system. The end of the ammonia water inlet pipe 33 is connected with the spray head 36. The spray head 36 sprays ammonia water and gas in parallel, and the small tar droplets in the gas are mixed with ammonia water and gradually become larger through mutual impact under the action of ammonia water. The two gas inlets 4 are symmetrically arranged. After the gas and ammonia water are mixed, they collide with each other at the middle position of the equipment, the tar droplets in the gas become larger, and part of the large tar droplets are deposited to the inclined bottom by gravity, and the rest are further removed upward.

[0052] The gas distribution plate 6 is composed of two layers of plates, each layer of plate is uniformly provided with holes, and the lower part has a supporting beam. The gas flows from bottom to top and is uniformly distributed after passing through the gas distribution plate, and then enters the precipitation electrode, and part of the tar in the gas is removed at the same time.

[0053] As shown in Figure 4-6 , the lower hanger 7 comprises a lower hanger flat steel ring 41, vertical flat steel beams 42, horizontal flat steel beams 43, connecting pieces 44, a lower hanger adjusting hook 45, bolts 46 and nuts 47. A plurality of vertical flat steel beams 42 are longitudinally arranged and fixed in parallel in the lower hanger flat steel ring 41; a plurality of horizontal flat steel beams 43 are transversely arranged and fixed in parallel in the lower hanger flat steel ring 41; the vertical flat steel beams 42 and the horizontal flat steel beams 43 are perpendicular to each other. The connecting pieces 44 and the lower hanger adjusting hook 45 are fixed to the vertical flat steel beams 42.

[0054] The vertical flat steel beam 42 is provided with a long circular hole along the length direction of the flat steel beam, which is used to adjust the vertical position of the connecting piece 44 and the lower hanger adjusting hook 45. The connecting piece 44 is provided with a circular hole at the connecting position with the vertical flat steel beam 42, and is fixed by a bolt and a nut. The connecting piece 44 is provided with a long circular hole at the connecting position with the lower hanger 19, which is used to adjust the horizontal position. The lower hanger adjusting hook 45 is provided with a thread at the end, which is fixed with 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 adjusting hook 45.

[0055] 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 hanger 19. The upper part of the precipitation electrode is a tube plate, which is fixed with the inner support of the cylinder 5 by a positioning pin, and the perpendicularity of the precipitation electrode is adjusted by an adjusting bolt.

[0056] As shown in Figure 7 , Figure 8 , the upper hanger 10 comprises 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 adjusting hook 67 and a support beam 68. The first main beam 61 is a four-beam inclined beam, which is fixed 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, which are fixed in the diamond beam.

[0057] The main beam and the support beam 68 can be made of profiled steel or spliced by steel plates. The bottom surface of the main beam is a plane, and the upper surface of the support beam 68 is fixed to the bottom surface of the main beam. The two ends of the support beam 68 are connected with the upper hanger flat steel ring 66, and the ends of the main beam are connected with the upper hanger flat steel ring 66. The main beams are connected by connecting plates or bolts and nuts.

[0058] The first main beam 61 is provided with a lower hanger connecting hole 64 and an upper hanger connecting hole 65. The support beam 68 is provided with a long circular hole along the length direction of the support beam, which is used to adjust the vertical position of the upper hanger adjusting hook 67. The end of the upper hanger adjusting hook 67 is provided with a thread, which is fixed with the support beam 68 by a nut, and the horizontal position of the structure is adjusted by the length of the thread at the end of the upper hanger adjusting hook 67. The lower hanger connecting hole 64 is an enlarged circular hole, and the position of the lower hanger is adjusted by a gasket.

[0059] As shown in Figure 9-12 , the lower hanger 19 connects the upper and lower hangers, which is made of round steel. The two ends of the lower hanger 19 are provided with threads, which are fixed with the upper and lower hangers by nuts. The length of the lower hanger 19 can be adjusted. After the lower hanger 19 is connected, the upper and lower hangers are in a rigid structure. The lower hanger 19 not only plays a role in rigid connection, but also plays a role in removing tar from the corona wire. The threads in the two ends of the lower hanger 19 are increased with full threads, longitudinal grooves or thorn tips, which ensure that the lower hanger also plays a role in corona when the corona voltage of the corona wire. Figure 9 、 Figure 10 is a lower hanger provided with a longitudinal groove, Figure 11 and 12 is a lower hanger provided with a thorn tip.

[0060] like Figure 13 As shown, the corona wire 20 comprises a collar 81, a corona wire 82, a clamp 83, and a seamless steel tube 84. The inner diameter of the seamless steel tube 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 adjustment hook, and the corona wire 82 is wrapped around the collar 81 and secured with a clamp 83. After the corona wire 20 is installed, the seamless steel tube 84 is pulled downward by gravity, positioned below the corona wire 20 and halfway between the inner and outer ends of the lower portion of the precipitating electrode 8, ensuring that the corona wire 20 remains unbroken.

[0061] like Figure 14 As shown, the corona wire 20 is fixed to the upper hanger adjustment hook 67 and the lower hanger adjustment hook 45 with bolts, nuts and washers respectively. The position of the bolts is adjusted to ensure that the corona wire 20 is tightened.

[0062] The working principle and working process of this utility model are as follows:

[0063] 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, then install the corona wire 20, and adjust the corona wire 20 to the center of the honeycomb of the precipitation electrode 8.

[0064] 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 electrostatic precipitator, 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 coal gas can reach a very high relative velocity, forming a highly turbulent impact zone. In a system where the liquid phase is the dispersed phase, the collision between droplets or between phases generates shear force, causing the droplets to break up, increasing the surface area of ​​the droplets and thereby increasing the mass transfer rate; the jets collide with each other, generating strong radial and axial turbulent velocity components, thereby forming good mixing in the impact zone. The small tar droplets in the coal gas mix with the ammonia water under the action of the ammonia water, and gradually grow larger due to collisions with each other.

[0065] The tar droplets in the gas collide with each other in the middle of the device, further enlarging. Some of the large tar droplets settle to the inclined bottom 1 by gravity, while the remainder flows upward into the two layers of gas distribution plates 6. A portion of the tar is removed, and the gas flows evenly upward along the gas distribution plates 6 into the precipitation electrode 8. Inside the precipitation electrode 8, the tar droplets in the gas combine with electrons and deposit on the precipitation electrode 8, flowing downward by gravity to the bottom of the device. The lower hanger 19 and the upper hanger 18 use the lower hanger rod 19 as a rigid structure, allowing the corona wire 20 to be easily fixed and remain in the center of the precipitation electrode 8 under the action of the gas, resulting in high tar removal efficiency.

[0066] During operation, if the voltage and current of the electrostatic tar capture fluctuate, hot ammonia is used to flush tar deposited on the precipitation electrode 8 or corona wire 20 from the top to ensure stable operation. The bottom of the equipment is also regularly flushed with hot ammonia to remove deposited tar through the inclined bottom 1. The coal gas, free of tar mist, flows upward through the coal gas outlet 14 for further purification.

[0067] The gas inlet 4 of this utility model uses ammonia to scrub the gas, enlarging tar droplets. A lower hanger 19 secures the lower hanger 7, creating a rigid structure that is unaffected by the gas. The corona wire 20 is bolted to the upper and lower hangers, allowing for easy adjustment and positioning at the center of the precipitation electrode. The lower hanger 19 utilizes full threads, longitudinal grooves, or barbs to ensure simultaneous corona generation with the corona wire 20, improving tar removal efficiency.

[0068] The above description is only part of the 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, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and the utility model concept of the present invention, should be covered by the protection scope of the present invention.

Claims

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

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

3. The electric tar precipitator 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 precipitator 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 an elongated hole, and the connecting piece and the lower hanger adjustment hook are connected to the vertical beam bolts through the elongated 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 precipitator according to claim 2, 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 precipitator according to claim 1, characterized in that: 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 outer ring of the upper hanger, the support beam is fixedly connected to the bottom surface of the main beam, and the two ends of the support 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. The 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 a bolt, a nut and a washer, and the bottom end is connected to the lower hanger adjusting hook through a bolt, a nut and a washer.

8. The electric tar precipitator 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 precipitator 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 precipitator according to claim 1, characterized in that: The corona wire includes 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 collar and fixed with a clamp.

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