Desulfurization device for carbon black tail gas treatment
By introducing multiple layers of packing material, adsorbent, and turbulence-inducing components into the carbon black tail gas desulfurization device, the efficient absorption of acidic gases in the carbon black tail gas is achieved, solving the problem of low desulfurization efficiency in existing technologies and improving desulfurization efficiency.
Patent Information
- Application Number
- CN202520119290.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-17
AI Technical Summary
The existing carbon black tail gas desulfurization towers have a simple structure, resulting in low desulfurization efficiency.
A desulfurization device comprising a multi-layer packing layer, an adsorbent layer, and a turbulence-inducing component was designed. Through the spray component and the turbulence-inducing component driven by the rotating shaft, the alkaline solution and carbon black tail gas are fully contacted and adsorbed. The hydrogen sulfide and sulfur dioxide adsorbent layers are used to further absorb acidic gases.
It significantly improves the absorption efficiency of acidic gases in carbon black tail gas and enhances desulfurization efficiency.
Smart Images
Figure CN223846632U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to carbon black production technical field especially relates to a kind of desulfurization devices for carbon black tail gas treatment. BACKGROUND
[0002] Carbon black tail gas is by-product generated in carbon black production process, in carbon black production process, after raw material oil pyrolysis, the waste gas containing CO, H2, H2S, SO2 Such as combustible gas, after the waste gas of carbon black after bag filter filtration screening is carbon black tail gas;Carbon black tail gas has the characteristics of low calorific value, high moisture content, high sulfur content, high acid dew point etc.Currently carbon black tail gas is first treated by denitration to remove nitrogen oxides, and then desulfurization tower is used for desulfurization treatment, the internal structure of existing desulfurization tower is: spray pipe and filler layer are arranged in the inside of tower body, after spraying by spray pipe, carbon black tail gas in the inside of tower body is contacted, and then H2S and SO2 In carbon black tail gas are absorbed;The internal structure of the above-mentioned structure desulfurization tower is simple, and desulfurization efficiency is low;Therefore, in view of the above problems, it is necessary to develop a kind of desulfurization device for carbon black tail gas treatment. SUMMARY
[0003] The technical problem to be solved by the utility model is: in view of the deficiencies of prior art, provide a kind of desulfurization device for carbon black tail gas treatment, utilize the desulfurization device, greatly improve desulfurization efficiency.
[0004] To solve the above technical problems, the technical scheme of the utility model is:
[0005] A kind of desulfurization device for carbon black tail gas treatment, including body, the lower part of the body two sides is respectively equipped with tail gas inlet pipe and liquid discharge port, the top of the body is equipped with exhaust port;The inside of the body is equipped with the first absorption chamber and the second absorption chamber that are interconnected, the inside of the first absorption chamber is equipped with multiple filler layers, the upper side of each layer of the filler layer is equipped with spray part;The inside of the second absorption chamber is alternately equipped with multiple first adsorbent layers and second adsorbent layers;The inside of the body is equipped with shaft, one end of the shaft is connected motor, the other end of the shaft sequentially passes through first adsorbent layer, second adsorbent layer, spray part and multiple filler layers;First adsorbent layer and the corresponding shaft between second adsorbent layer are equipped with first turbulence part, the upper side of each layer of the spray part is equipped with second turbulence part on the corresponding shaft;The inside lower side of the body is equipped with gas distributor that is communicated with the tail gas inlet pipe, the upper side of the gas distributor is equipped with third turbulence part.
[0006] As an improved technical scheme, the spray part includes circular ring spray main pipe, multiple spray branch pipes are equipped with on the spray main pipe at equal intervals, multiple spray holes are equipped with on the spray main pipe and the spray branch pipe.
[0007] As an improved technical scheme, the first adsorbent layer is a hydrogen sulfide adsorbent layer.
[0008] As an improved technical scheme, the second adsorbent layer is a sulfur dioxide adsorbent layer.
[0009] As an improved technical scheme, the first and second turbulence components each include a plurality of stirring rods, the stirring rods are provided with a plurality of stirring rods, the end of the stirring rod is provided with a fan-shaped stirring block, and the fan-shaped stirring block is provided with a plurality of through holes.
[0010] As an improved technical scheme, the gas distributor includes a disc body with a hollow structure, a conical body is arranged above the disc body and is in communication with the disc body, and a plurality of gas distribution holes are arranged on the conical body.
[0011] As an improved technical scheme, the third turbulence component includes turbulence plates obliquely arranged on both sides of the inner wall of the body, a plurality of rows of through holes are arranged on the turbulence plates, and a row of conical protrusions is arranged between adjacent two rows of through holes.
[0012] After the above technical scheme is adopted, the beneficial effects of the present application are as follows:
[0013] The desulfurization device for treating carbon black tail gas comprises a body, tail gas inlet pipes and liquid discharge outlets are arranged on the lower part of the body, and a gas discharge outlet is arranged on the top of the body; a first absorption chamber and a second absorption chamber are arranged in the body and are communicated with each other, a plurality of filler layers are arranged in the first absorption chamber, and a spraying part is arranged above each filler layer; a plurality of first adsorbent layers and second adsorbent layers are alternately arranged in the second absorption chamber; a rotating shaft is arranged in the body, one end of the rotating shaft is connected with a motor, and the other end of the rotating shaft sequentially penetrates through the first adsorbent layer, the second adsorbent layer, the spraying part and the plurality of filler layers; a first turbulence part is arranged on the rotating shaft corresponding to the first adsorbent layer and the second adsorbent layer; a second turbulence part is arranged on the rotating shaft corresponding to each spraying part; and a gas distributor is arranged below the body and is communicated with the tail gas inlet pipe, and a third turbulence part is arranged above the gas distributor. After the carbon black tail gas is subjected to denitration treatment to remove nitrogen oxides, the tail gas enters the gas distributor under the action of an induced draft fan, is dispersed and then flows to the first absorption chamber through the third turbulence part, the lye is uniformly dispersed in the spraying part under the action of a delivery pump and is fully contacted with the carbon black tail gas in the filler layer, thereby effectively absorbing the acidic gas (sulfur dioxide and hydrogen sulfide) in the tail gas; the tail gas subjected to the desulfurization treatment in the first absorption chamber flows upward to the second absorption chamber, is adsorbed by the first adsorbent layer and the second adsorbent layer, and is further effectively absorbed; and when the first absorption chamber and the second absorption chamber are subjected to the desulfurization treatment, the motor drives the rotating shaft to rotate and drives the first turbulence part and the second turbulence part to disperse the airflow, so that the lye in the spraying part and the first adsorbent layer and the second adsorbent layer fully absorb the acidic gas in the tail gas. The desulfurization device with the above structure greatly improves the absorption of the acidic gas in the carbon black tail gas and greatly improves the desulfurization efficiency.
[0014] The spraying part comprises a circular ring-shaped spraying main pipe, a plurality of spraying branch pipes are arranged at equal intervals on the spraying main pipe, and a plurality of spraying holes are arranged on the spraying main pipe and the spraying branch pipes. The lye is uniformly dispersed in the spraying part under the action of the delivery pump, is sprayed out through the spraying holes and is used for absorbing hydrogen sulfide and sulfur dioxide in the tail gas. The spraying part with the above structure can uniformly disperse the lye and facilitate the effective absorption of hydrogen sulfide and sulfur dioxide in the tail gas.
[0015] The first adsorbent layer is a hydrogen sulfide adsorbent layer. When the tail gas passes through the hydrogen sulfide adsorbent layer, further adsorption of hydrogen sulfide gas can be realized, thereby improving the adsorption efficiency.
[0016] The second adsorbent layer is a sulfur dioxide adsorbent layer. When the tail gas passes through the sulfur dioxide adsorbent layer, further adsorption of sulfur dioxide can be realized, thereby improving the adsorption efficiency.
[0017] Since the first and second turbulence components each comprise a plurality of stirring rods, the stirring rods are provided with a plurality of stirring bars, and the end of the stirring rod is provided with a fan-shaped stirring block, and the fan-shaped stirring block is provided with a plurality of through holes. The stirring rod, the stirring bar and the fan-shaped stirring block rotate with the rotation of the rotating shaft, and disperse the airflow from bottom to top, avoiding the formation of airflow groups, and more conducive to the absorption of sulfur dioxide and hydrogen sulfide in the tail gas.
[0018] Since the gas distributor comprises a disc body with a hollow structure, the upper part of the disc body is provided with a conical body in communication with the disc body, and the conical body is provided with a plurality of gas distribution holes. Under the action of the induced draft fan, the carbon black tail gas enters the disc body through the gas inlet pipe, and then enters the conical body and is uniformly dispersed in the body through the gas distribution holes. The gas distributor with the above structure is reasonably designed, which realizes effective dispersion of the tail gas and avoids the formation of airflow groups.
[0019] Since the third turbulence component comprises turbulence plates obliquely arranged on both sides of the inner wall of the body, the turbulence plates are provided with a plurality of rows of through holes, and the lower surface of the turbulence plate corresponding to the adjacent two rows of through holes is provided with a row of conical protrusions. When the tail gas dispersed by the gas distributor flows upward, part of the tail gas moves upward through the through holes, and part of the tail gas collides and disperses with the conical protrusions and then moves upward through the through holes. The third turbulence component with the above structure is reasonably designed, which realizes further dispersion of the tail gas, avoids the formation of airflow groups, and is more conducive to the effective absorption of acidic gas in the tail gas. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a structural schematic view of a desulfurization device for carbon black tail gas treatment.
[0021] Among them, 1 is a body, 2 is a tail gas inlet pipe, 3 is a liquid outlet, 4 is an exhaust port, 5 is a filler layer, 6 is a spraying component, 60 is a spraying main pipe, 61 is a spraying branch pipe, 7 is a first adsorbent layer, 8 is a second adsorbent layer, 9 is a rotating shaft, 10 is a motor, 11 is a first turbulence component, 110 is a stirring rod, 111 is a stirring bar, 112 is a stirring block, 12 is a second turbulence component, 13 is a gas distributor, 130 is a disc body, 131 is a conical body, 14 is a third turbulence component, 140 is a turbulence plate, 141 is a conical protrusion, and 15 is a partition plate. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.
[0023] A desulfurization device for carbon black tail gas treatment, such as Figure 1As shown, including the body 1, the lower part of the body 1 is respectively provided with tail gas inlet pipe 2 and liquid outlet 3, the top of the body 1 is provided with exhaust port 4; The inside of the body 1 is provided with first absorption chamber and second absorption chamber (the first absorption chamber and the second absorption chamber are provided with the partition plate 14 with hollow structure, the center of the partition plate 14 is provided with the rotating shaft through hole), the inside of the first absorption chamber is provided with multiple layers of filler layer 5 (pall ring filler layer), the upper side of each layer of filler layer 5 is provided with spray part 6; The inside of the second absorption chamber is alternately provided with multiple layers of first adsorbent layer 7 and second adsorbent layer 8; The inside of the body 1 is provided with rotating shaft 9, one end of the rotating shaft 9 is connected with motor 10, the other end of the rotating shaft 10 is sequentially through first adsorbent layer 7 (hydrogen sulfide adsorbent layer, specifically refers to the hydrogen sulfide adsorbent is divided into 2 non-woven bag, then the 2 non-woven cloth is placed on the stainless steel filter screen, the center of the stainless steel filter screen is provided with the through hole for the rotating shaft to pass through), second adsorbent layer 8 (sulfur dioxide adsorbent layer, specifically refers to the sulfur dioxide adsorbent is divided into non-woven bag, then the 2 non-woven bag is placed on the stainless steel filter screen, the center of the stainless steel filter screen is provided with the through hole for the rotating shaft to pass through), spray part 6 and multiple layers of filler layer 5; The rotating shaft 9 corresponding to the first adsorbent layer 7 and the second adsorbent layer 8 is provided with first turbulence part 11, the rotating shaft 9 corresponding to the upper side of each layer of spray part 6 is provided with second turbulence part 12; The lower side of the inside of the body 1 is provided with gas distributor 13 communicated with tail gas inlet pipe 2, the upper side of the gas distributor 13 is provided with third turbulence part 14.
[0024] The carbon black tail gas is treated by denitration to remove nitrogen oxides, then enters the inside of the gas distributor along the inlet pipe under the action of the induced draft fan, and then flows to the first absorption chamber through the third turbulence part after dispersion, the lye is uniformly dispersed in the spray part under the action of the delivery pump, and then fully contacts with the carbon black tail gas in the filler layer, so that the acidic gas (sulfur dioxide and hydrogen sulfide) in the tail gas is effectively absorbed; The tail gas after desulfurization treatment in the first absorption chamber flows upward to the second absorption chamber, and is adsorbed by the first adsorbent layer (hydrogen sulfide adsorbent layer) and the second adsorbent layer (sulfur dioxide adsorbent layer), so that the acidic gas is further effectively absorbed, and when the first absorption chamber and the second absorption chamber are desulfurized, the motor starts the rotating shaft to drive the first turbulence part and the second turbulence part to disperse the airflow, so that the lye in the spray part and the first and second adsorbent layers fully absorb the acidic gas in the tail gas, and the effluent absorption liquid after absorbing the acidic gas is discharged from the liquid outlet.
[0025] The spraying part 6 comprises a circular ring-shaped spraying main pipe 60, a plurality of spraying branch pipes 61 are arranged on the spraying main pipe 6 at equal intervals, and a plurality of spraying holes are arranged on the spraying main pipe 60 and the spraying branch pipes 61. The alkali solution is sprayed out through the spraying holes after being conveyed by the conveying pump along the pipeline and into the interiors of the spraying main pipe and the spraying branch pipes, so as to absorb the hydrogen sulfide and the sulfur dioxide in the tail gas. The spraying part with the above structure can uniformly disperse the alkali solution, and is convenient for effectively absorbing the hydrogen sulfide and the sulfur dioxide in the tail gas.
[0026] The first turbulence part 11 and the second turbulence part 12 each comprise a plurality of stirring rods 110, a plurality of stirring rods 111 are arranged on the stirring rods 110, and a fan-shaped stirring block 112 is arranged on the end of the stirring rod 111. The stirring rod, the stirring rod and the fan-shaped stirring block rotate with the rotation of the rotating shaft, and disperse the airflow from bottom to top, so as to avoid the formation of airflow groups and further facilitate the absorption of the sulfur dioxide and the hydrogen sulfide in the tail gas.
[0027] The gas distributor 13 comprises a hollow disc body 150, a conical body 131 is arranged above the disc body 130 and communicates with the disc body 130, and a plurality of gas distribution holes are arranged on the conical body 131. Under the action of the induced draft fan, the carbon black tail gas enters the interior of the disc body along the gas inlet pipe, and then enters the conical body and is uniformly dispersed in the interior of the body through the gas distribution holes. The gas distributor with the above structure is rationally designed, effectively disperses the tail gas, and avoids the formation of airflow groups.
[0028] The third turbulence part 14 comprises turbulence plates 140 which are arranged on the inner walls of the body 1 at an inclination, a plurality of rows of through holes are arranged on the turbulence plates, and a row of conical protrusions 141 is arranged on the lower surfaces of the turbulence plates 140 corresponding to the adjacent two rows of through holes. When the tail gas dispersed by the gas distributor flows upward, part of the tail gas moves upward through the through holes, and part of the tail gas is dispersed by colliding with the conical protrusions and then moves upward through the through holes. The third turbulence part with the above structure is rationally designed, further disperses the tail gas, avoids the formation of airflow groups, and further facilitates the effective absorption of the acid gas in the tail gas.
[0029] The above only describes the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A desulfurization device for treating carbon black tail gas, characterized in that, The application relates to a tail gas absorption device, which comprises a body, a tail gas inlet pipe and a liquid outlet on the lower part of the body, an exhaust port on the top of the body, a first absorption chamber and a second absorption chamber in the body, a plurality of filler layers in the first absorption chamber, a spraying part above each filler layer, a plurality of first adsorbent layers and second adsorbent layers in the second absorption chamber, a rotating shaft in the body, a motor connected to one end of the rotating shaft, the rotating shaft sequentially penetrating through the first adsorbent layers, the second adsorbent layers, the spraying parts and the filler layers, a first turbulence part on the rotating shaft corresponding to the first adsorbent layers and the second adsorbent layers, a second turbulence part on the rotating shaft corresponding to the spraying parts, a gas distributor below the body and connected to the tail gas inlet pipe, and a third turbulence part above the gas distributor.
2. The desulfurization device for carbon black tail gas treatment according to claim 1, characterized by The spraying part comprises a circular ring-shaped spraying main pipe, a plurality of spraying branch pipes equidistantly arranged on the spraying main pipe, and a plurality of spraying holes on the spraying main pipe and the spraying branch pipes.
3. The desulfurization device for carbon black tail gas treatment according to claim 1, characterized by The first adsorbent layer is a hydrogen sulfide adsorbent layer.
4. The desulfurization device for carbon black tail gas treatment according to claim 1, characterized by The second adsorbent layer is a sulfur dioxide adsorbent layer.
5. The desulfurization device for carbon black tail gas treatment according to claim 1, characterized by The first turbulence part and the second turbulence part each comprise a plurality of stirring rods, a plurality of stirring rods on the stirring rods, a fan-shaped stirring block at the end of the stirring rod, and a plurality of through holes on the fan-shaped stirring block.
6. The desulfurization device for carbon black tail gas treatment according to claim 1, characterized by The gas distributor comprises a disc body with a hollow structure, a conical body above the disc body and connected to the disc body, and a plurality of gas distribution holes on the conical body.
7. The desulfurization device for carbon black tail gas treatment according to claim 1, characterized by The third turbulence part comprises turbulence plates obliquely arranged on the inner wall of the body, a plurality of rows of through holes on the turbulence plates, and a row of conical protrusions between adjacent two rows of through holes.