Coal chemical industry process waste gas desulfurization device

Abstract

The utility model relates to the technical field of coal chemical industry, in particular to a coal chemical industry process waste gas desulfurization device which comprises a tower body, a filter area is arranged in the tower body, a plurality of groups of separation areas and nozzles are arranged above the filter area at equal intervals, and the nozzles are located among the separation areas. One end of the outer wall of the tower body is connected with a final smoke outlet through a pipeline, the other end of the outer wall of the tower body is provided with an inlet external connection end, the inlet external connection end is located below the final smoke outlet, and the inlet external connection end penetrates through the interior of the tower body through a pipeline. According to the improved coal chemical industry process waste gas desulfurization device, the independent cavity is formed through the separation area, flue gas is independently treated in the cavity and then conveyed through the suction fans which are installed in a staggered mode and treated in a partitioned mode, the sulfide separation strength is effectively improved, internal spiral blades are added, the flue gas is discharged through surface through holes of the spiral blades, the flue gas conveying speed is effectively controlled, and the desulfurization efficiency is improved. And the situation that follow-up treatment is narrow due to too large smoke is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal chemical process, in particular to a coal chemical process waste gas desulfurization device. Background Art

[0002] Coal chemical industry refers to the process of using coal as raw material and converting it into gas, liquid and solid fuels and chemicals through chemical processing. It mainly includes coal gasification, liquefaction, carbonization, tar processing and calcium carbide acetylene chemical industry. Coal chemical processing process. The chemical structure of organic matter in coal is a macromolecular structure with aromatic condensed rings as the core unit, connected by bridge bonds and with various functional groups. Through thermal processing and catalytic processing, coal can be converted into various fuels and chemical products.

[0003] When coal is burned, it will produce flue gas, which contains waste gases such as sulfur dioxide. In order to avoid air pollution, the sulfur dioxide in the waste gas is absorbed and removed by desulfurization equipment during the waste gas emission process. The process usually uses limestone to be crushed into powder and mixed with water to form an absorption slurry, and water is added to make an absorbent slurry, which is sprayed on the flue gas in the tower body to make the slurry contact and mix with the flue gas.

[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. The positions of many spray components lack rationality. The flue gas is constantly rising, but the through-type structure in the tower will cause the slurry dripping from the treated flue gas to fall into the adsorption layer below, thereby causing pollution, thus affecting the treatment effect; 2. After the desulfurization process, the refluxed liquid will precipitate and separate the gypsum, but most of them need to be separated separately by external equipment, which increases the operation steps. Utility Model Content

[0005] The purpose of the utility model is to provide a coal chemical process waste gas desulfurization device to solve the problem that the through-type structure proposed in the above background technology will affect the substance used to absorb the flue gas below, resulting in poor desulfurization treatment effect, and the final reflux liquid needs to be filtered. To achieve the above purpose, the utility model provides the following technical solutions: A coal chemical process waste gas desulfurization device, including a tower body, a filtering area is opened in the tower body, and an array of separation areas and nozzles are opened at equal distances above the filtering area. The nozzle is located between the separation areas. One end of the outer wall of the tower body is connected to the final smoke exhaust port through a pipeline, and the other end of the outer wall of the tower body is opened with an inlet external connection end, and the inlet external connection end is located below the final smoke exhaust port. The inlet external connection end runs through the interior of the tower body through a pipeline. A quick-opening component is installed on the surface of the tower body corresponding to the separation area. The tower body is respectively provided with a first hydrocyclone and a second hydrocyclone away from its outer wall. The first hydrocyclone is connected to the nozzle through a pipeline, and the second hydrocyclone is connected to a pressure pump through a pipeline.

[0006] The filtration area includes a liquid storage tank and a filter plate. The bottom of the liquid storage tank is welded to the bottom wall of the tower body. The surface of the liquid storage tank is provided with a trapezoidal annular frame for mounting the filter plate.

[0007] The separation zone includes a reflux disk and an activated carbon layer. The reflux disk is welded to the inner wall of the tower body, and the activated carbon layer is installed at the edge of the top of the reflux disk by bolts.

[0008] The quick-opening assembly includes a left sliding door and a right sliding door, and the left sliding door and the right sliding door are slidably connected to a sliding groove opened on one side of the tower body through arc-shaped protrusions opened at the upper and lower ends thereof, and the surfaces of the left sliding door and the right sliding door are respectively installed with limit openings with a threaded structure.

[0009] Further preferably, a water pump is provided on one side of the outer wall of the tower body, and the water pump is penetrated by a pipeline and connected to the bottom of the liquid storage tank, and a discharge port for connecting to the pipeline of the second hydrocyclone is provided above the filter disc.

[0010] Further preferably, two groups of suction fans are installed at both ends of the outer wall of the tower body, and the interior of the tower body forms three groups of cavities for treating smoke through the separation area, and the cavities are connected by suction fan pipes, and at the same time, the pipe opening of the suction fan located below is distributed in the same cavity corresponding to the external inlet end.

[0011] Further preferably, the inner wall edge of the external end of the inlet is provided with blades distributed in a spiral shape, and the surface of the blades is provided with a plurality of through holes for exhausting smoke.

[0012] Further preferably, a cavity is formed between the activated carbon layer and the reflux disk, and a baffle is provided in the cavity, and a groove for drainage is provided on the inclined surface of the baffle, and the reflux disk is connected to the second hydrocyclone pipeline through a pressure pump.

[0013] Further preferably, the tail ends of the left sliding door and the right sliding door are respectively connected to the inner cavity of the slide groove opened in the tower body through the springs opened therein, and the left sliding door and the right sliding door respectively form an opening and closing structure on the surface of the tower body through the springs, and the maximum distance between the left sliding door and the right sliding door is greater than the diameter of the filter disc.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, the inside of the through-type tower body will cause the flue gas to rise continuously during the treatment process, which will cause it to react with the sprayed slurry and cause the dripping medium to pollute the filler below that has not been treated in time. An independent cavity is formed by the separation zone, so that the flue gas is treated separately inside the cavity and then transported by the staggered installed suction fans for zoned treatment, which effectively improves the separation of sulfides. By adding internal spiral blades in the external end of the inlet, the flue gas is discharged through the through holes on its surface, which effectively controls the speed of flue gas transportation and does not cause confinement during subsequent treatment due to excessive smoke.

[0016] In the utility model, the reflux disk that collects the dripping medium generated by the reaction with the flue gas will be transmitted to the second hydrocyclone for processing under the action of an external pressure pump and then transported back to the surface of the filter disk. The grid-like surface of the filter disk effectively separates the liquid to the liquid storage tank below, thereby achieving the operability of other additional processes besides the desulfurization process. At the same time, the left sliding door and the right sliding door have the effect of rapid opening and closing through the elastic structure of the spring, which is convenient for the overall removal of the filter disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the external inlet end of the utility model;

[0020] Figure 4 This is an exploded diagram of the separation area of ​​the utility model;

[0021] Figure 5 This is an exploded view of the filter area of ​​the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the quick-opening component of the utility model.

[0023] In the figure: 1. tower body; 2. filtration area; 201. liquid storage tank; 202. filter plate; 3. separation area; 301. reflux plate; 302. activated carbon layer; 303. baffle; 4. nozzle; 5. final smoke exhaust port; 6. inlet external terminal; 7. quick opening assembly; 701. left sliding door; 702. right sliding door; 703. limit port; 704. spring; 8. first hydrocyclone; 9. second hydrocyclone; 10. pressure pump; 11. water pump; 12. suction fan. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 6 The utility model provides a technical solution: a coal chemical process waste gas desulfurization device, including a tower body 1, a filtering area 2 is opened in the tower body 1, and an array of separation areas 3 and nozzles 4 are opened at equal distances above the filtering area 2, and the nozzle 4 is located between the separation areas 3. One end of the outer wall of the tower body 1 is connected with a final smoke exhaust port 5 through a pipeline, and the other end of the outer wall of the tower body 1 is opened with an inlet external connection end 6, and the inlet external connection end 6 is located below the final smoke exhaust port 5. The inlet external connection end 6 runs through the interior of the tower body 1 through a pipeline, and a quick-opening component 7 is installed on the side of the surface of the tower body 1 corresponding to the separation area 3. The tower body 1 is respectively provided with a first hydrocyclone 8 and a second hydrocyclone 9 away from its outer wall. The first hydrocyclone 8 is connected to the nozzle 4 through a pipeline, and the second hydrocyclone 9 is connected to a pressure pump 10 through a pipeline.

[0026] The filtration area 2 includes a liquid storage tank 201 and a filter plate 202 . The bottom of the liquid storage tank 201 is welded to the inner bottom wall of the tower body 1 . The surface of the liquid storage tank 201 is provided with a trapezoidal annular frame for mounting the filter plate 202 .

[0027] The separation zone 3 includes a reflux plate 301 and an activated carbon layer 302 . The reflux plate 301 is welded to the inner wall of the tower body 1 , and the activated carbon layer 302 is installed at the edge of the top of the reflux plate 301 by bolts.

[0028] The quick-opening assembly 7 includes a left sliding door 701 and a right sliding door 702. The left sliding door 701 and the right sliding door 702 are slidably connected to a sliding groove opened on one side of the tower body 1 through arc-shaped protrusions opened at their upper and lower ends, and the surfaces of the left sliding door 701 and the right sliding door 702 are respectively installed with a limit opening 703 with a threaded structure.

[0029] In this embodiment, Figure 1 and Figure 2As shown, a water pump 11 is provided on one side of the outer wall of the tower body 1, and the water pump 11 penetrates and is connected to the bottom of the liquid storage tank 201 through a pipeline, and a pipeline discharge port for connecting to the second hydrocyclone 9 is provided above the filter disc 202; the separation zone 3 is used to treat the flue gas. When the flue gas enters the cavity between the separation zones 3, it first contacts with the surface filler of the activated carbon layer 302 to adsorb the internal sulfide, and then reacts with the limestone slurry after being sprayed by the nozzle 4. The medium after flowing through the flue gas returns to the liquid storage tank 201 again, and the liquid storage tanks 201 are connected by pipelines, and finally transported to the inside of the second hydrocyclone 9 through the pressure pump 10 pipeline. Since gypsum can be extracted from the final medium, this type of medium is stirred evenly by the second hydrocyclone 9 and then transported back to the inside of the tower body 1 for separation and filtration, effectively achieving the operability of other additional processes except the desulfurization process.

[0030] In this embodiment, Figure 1 and Figure 2 As shown, two groups of suction fans 12 are respectively installed at both ends of the outer wall of the tower body 1, and the interior of the tower body 1 forms three groups of cavities for treating flue gas through the separation zone 3, and the cavities are connected by the suction fan 12 pipes, and at the same time, the pipe opening of the suction fan 12 located below and the inlet external connection end 6 are correspondingly distributed in the same cavity; inside the through-type tower body 1, because the top concentration value is too large, and the flue gas continues to rise during the treatment process, it will react with the sprayed slurry to cause the dripping medium to contaminate the filler below that has not been treated in time. The cavity formed by the separation zone 3 can make the flue gas be treated separately inside the cavity and then transported through the staggered suction fans 12, effectively improving the sulfide separation strength.

[0031] In this embodiment, Figure 3 As shown, the inner wall edge of the inlet external connection end 6 is fitted with spirally distributed blades, and the surface of the blades is provided with several through holes for smoke exhaust; the inlet external connection end 6 is the main connection port for connecting the external smoke exhaust equipment with the tower body 1. Since the concentration value of the untreated pipeline is relatively large, and if the flow speed is too fast when it enters the tower body 1, it will affect the subsequent desulfurization degree. By adding internal spiral blades, the flue gas is discharged through the through holes on its surface, which effectively controls the speed of flue gas transportation and does not cause cramped subsequent treatment due to excessive smoke.

[0032] In this embodiment, Figure 4As shown, a cavity is formed between the activated carbon layer 302 and the reflux plate 301, and a baffle 303 is provided in the cavity, and a groove for drainage is provided on the inclined surface of the baffle 303, and the reflux plate 301 is connected to the second hydrocyclone 9 through a pressure pump 10; the flue gas is treated by the nozzle 4 and the dripping medium after the slurry is fully reacted will be discharged into the reflux plate 301. In order to ensure that the medium in the reflux plate 301 is fully extracted later, the structure of the baffle 303 makes the bottom wall of the cavity inclined, which fully creates a water flow trend for the medium and effectively solves the problem of the medium remaining on the bottom wall of the reflux plate 301.

[0033] In this embodiment, Figure 6 As shown, the tail ends of the left sliding door 701 and the right sliding door 702 are respectively installed and connected to the inner cavity of the slide groove opened in the tower body 1 through the springs 704 opened therein, and the left sliding door 701 and the right sliding door 702 respectively form an opening and closing structure on the surface of the tower body 1 through the springs 704, and the maximum distance between the left sliding door 701 and the right sliding door 702 is greater than the diameter of the filter disc 202; the pressure pump 10 transports the medium inside the reflux disc 301 to the second hydrocyclone 9 through the pipeline, and the second hydrocyclone 9 transfers the medium inside the reflux disc 301 to the second hydrocyclone 9 through the centrifugal force. The substances are separated quickly and transported back to the tower body 1 through the pipe opening again. The medium treated by the second hydrocyclone 9 is a semi-liquid gypsum slurry, which is discharged into the surface of the filter disc 202 through the pipe opening opened above the filter disc 202 for sedimentation and filtration. The grid-like surface of the filter disc 202 effectively separates the liquid to the liquid storage tank 201 below, and the undried gypsum trapped on its surface can be completely extracted through the quick-opening component 7. The left sliding door 701 and the right sliding door 702 have the effect of rapid opening and closing through the elastic structure of the spring 704.

[0034] The use method and advantages of the utility model: When the coal chemical process waste gas desulfurization device is used, the working process is as follows:

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, when the equipment is in use, the first hydrocyclone 8 is connected to an external limestone slurry silo for treating flue gas through a pipeline to provide slurry for the nozzle 4. The inlet external connection end 6 is used to connect an external smoke exhaust device and the tower body 1. The smoke enters the tower body 1 through the inlet external connection end 6. The spiral blades inside it effectively control the speed of smoke transportation. The separation zone 3 and the nozzle 4 in the lowermost cavity treat the smoke entering the tower body 1 for the first time. The medium reacting with the smoke will drip onto the reflux plate 301. The external suction fan 12 will discharge the smoke treated for the first time into the second cavity through the pipeline for treatment again, and then discharge it into the third cavity through the suction fan 12 for treatment and then be discharged from the final smoke exhaust port 5. The reflux plate 301 that collects the dripping medium generated by reacting with the smoke will be transmitted to the second hydrocyclone 9 under the action of the external pressure pump 10. The hydrocyclone 9 separates the substances quickly by the centrifugal force, and discharges the substances into the surface of the filter disc 202 through the pipe opening opened above the filter disc 202 for sedimentation and filtration. The grid-like surface of the filter disc 202 effectively separates the liquid to the liquid storage tank 201 below, and the medium inside the liquid storage tank 201 is extracted and discharged by the water pump 11. The limiting openings 703 on the surfaces of the left sliding door 701 and the right sliding door 702 are connected by bolts. After removing the surface bolts, the elastic structure of the spring 704 causes the left sliding door 701 and the right sliding door 702 on both sides to slide in opposite directions and close into the corresponding sliding grooves opened in the tower body 1, and the limiting openings 703 on the surface effectively avoid their sliding paths. The gaps opened by the left sliding door 701 and the right sliding door 702 facilitate the overall removal of the filter disc 202, and the extraction of the raw materials filtered on the surface. The raw materials can be used as other auxiliary materials after drying and solidifying the gypsum.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A coal chemical process waste gas desulfurization device, comprising a tower body (1), characterized in that: The tower body (1) is provided with a filtering area (2), and above the filtering area (2) are provided with a plurality of separation areas (3) and nozzles (4) at equal distances, and the nozzles (4) are located between the separation areas (3). One end of the outer wall of the tower body (1) is connected to a final smoke exhaust port (5) via a pipeline, and the other end of the outer wall of the tower body (1) is provided with an inlet external connection end (6), and the inlet external connection end (6) is located below the final smoke exhaust port (5). The inlet external connection end (6) penetrates the interior of the tower body (1) via a pipeline. A quick-opening component (7) is installed on the surface of the tower body (1) on the side corresponding to the separation area (3). The tower body (1) is provided with a first hydrocyclone (8) and a second hydrocyclone (9) at a position away from the outer wall thereof, respectively. The first hydrocyclone (8) is connected to the nozzle (4) via a pipeline, and the second hydrocyclone (9) is connected to a pressure pump (10) via a pipeline. The filtration area (2) comprises a liquid storage tank (201) and a filter plate (202); the bottom of the liquid storage tank (201) is welded to the inner bottom wall of the tower body (1); and a trapezoidal annular frame for mounting the filter plate (202) is provided on the surface of the liquid storage tank (201); The separation zone (3) comprises a reflux plate (301) and an activated carbon layer (302), wherein the reflux plate (301) is welded to the inner wall of the tower body (1), and the activated carbon layer (302) is installed at the edge of the top of the reflux plate (301) by means of bolts; The quick-opening assembly (7) comprises a left sliding door (701) and a right sliding door (702), wherein the left sliding door (701) and the right sliding door (702) are respectively slidably connected to a sliding groove provided on one side of the tower body (1) via arc-shaped protrusions provided at upper and lower ends thereof, and the surfaces of the left sliding door (701) and the right sliding door (702) are respectively provided with limiting openings (703) in a threaded structure.

2. A coal chemical process waste gas desulfurization device according to claim 1, characterized in that: A water pump (11) is provided on one side of the outer wall of the tower body (1), and the water pump (11) is connected to the bottom of the liquid storage tank (201) through a pipeline, and a pipeline discharge port for connecting to the second hydrocyclone (9) is provided above the filter disc (202).

3. A coal chemical process waste gas desulfurization device according to claim 1, characterized in that: Two groups of suction fans (12) are respectively installed at both ends of the outer wall of the tower body (1), and the interior of the tower body (1) forms three groups of cavities for treating smoke through the separation zone (3), and the cavities are connected through the suction fan (12) pipes, and the pipe opening of the suction fan (12) at the bottom and the inlet external connection end (6) are correspondingly distributed in the same cavity.

4. A coal chemical process waste gas desulfurization device according to claim 1, characterized in that: The inner wall edge of the inlet external connection end (6) is fitted with blades distributed in a spiral shape, and the surface of the blades is provided with a plurality of through holes for exhausting smoke.

5. A coal chemical process waste gas desulfurization device according to claim 1, characterized in that: A cavity is formed between the activated carbon layer (302) and the reflux plate (301), and a baffle (303) is provided in the cavity. The baffle (303) has an inclined surface with a notch for drainage. The reflux plate (301) is connected to the second hydrocyclone (9) through a pressure pump (10) through a pipeline.

6. A coal chemical process waste gas desulfurization device according to claim 1, characterized in that: The tail ends of the left sliding door (701) and the right sliding door (702) are respectively installed and connected to the inner cavity of the sliding groove provided in the tower body (1) through the springs (704) provided therein, and the left sliding door (701) and the right sliding door (702) respectively form an opening and closing structure on the surface of the tower body (1) through the springs (704), and the maximum distance between the left sliding door (701) and the right sliding door (702) is greater than the diameter of the filter disc (202).

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