Coking waste gas purification and recovery device

Abstract

The invention relates to the technical field of environmental protection engineering, and discloses a coking waste gas purification and recovery device which comprises a base and a rack, a reaction box is fixedly installed at the top of the base, the reaction box is fixedly installed in the rack, and a purification assembly is arranged on the reaction box. According to the coking waste gas purification and recovery device, the purification assembly is arranged and matched with a multi-head pipe, a three-head pipe and a waste gas input pipe, so that waste gas is more rapidly and evenly input into the reaction box, the arc-shaped structure of the reaction box facilitates follow-up cleaning work, cleaning dead corners are reduced, and a material conveying pump, a side pipe, an arc-shaped pipe, a top pipe, a circular pipe and an output pipe are arranged; the washing liquid is better pumped out and sprayed into the reaction box to be fully contacted and reacted with the waste gas, the waste liquid is conveniently pumped out of the reaction box through the discharging pipe after the reaction is finished, the initial washing liquid is input into the reaction box through the liquid inlet pipe, and the coking waste gas can be better purified and recycled in cooperation with the first adsorption layer, the second adsorption layer and the liquid removal layer.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection engineering, in particular to a coking waste gas purification and recovery device. Background Art

[0002] In the coking industry, its production process covers multiple workshops including coal preparation, coking, recycling, refined benzene, tar and other chemical refining. Due to the particularity of the process, a wide variety of waste gases are generated, such as hydrogen sulfide, hydrogen cyanide, ammonia, tar, naphthalene, benzene series and other volatile organic compounds (VOCs). If these waste gases are directly discharged without effective treatment, they will not only cause serious pollution to the surrounding atmospheric environment and cause environmental problems such as haze and acid rain, but also long-term exposure to such an environment will pose a great threat to human health and may lead to serious consequences such as respiratory diseases and cancer.

[0003] In this context, efficient purification and recovery of coking waste gas has become an urgent need for the development of the industry. The washing method in the existing technology, as one of the more commonly used methods for treating storage tank waste gas in coking plants, has a single structure, and the input method of waste gas and the output form of washing liquid are not closely combined, the washing effect is difficult to guarantee, the efficiency of removing harmful substances in the waste gas is low, and steam cannot be used well to heat the waste gas and washing liquid. In addition, the steam thermal energy is not fully utilized and is not energy-saving enough.

[0004] In view of this, we proposed a coking waste gas purification and recovery device. Summary of the Invention

[0005] The purpose of the present invention is to provide a coking waste gas purification and recovery device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A coking waste gas purification and recovery device comprises a base and a frame, a reaction box is fixedly mounted on the top of the base, the reaction box is fixedly mounted inside the frame, a box cover is hingedly mounted on the front end of the reaction box, a sealing member is provided between the reaction box and the box cover, a vertical cylinder is fixedly mounted on the center of the top of the reaction box, the vertical cylinder is fixedly mounted on the center inside the top of the frame, one end of a purification pipe is fixedly mounted on the top of the vertical cylinder, the other end of the purification pipe is connected to a purified gas recovery device, a first adsorption layer, a second adsorption layer and a liquid removal layer are sequentially arranged inside the vertical cylinder from bottom to top, a purification component is provided on the reaction box, and the purification component comprises: A manifold, the top inclined side wall of the reaction box is fixedly installed with a manifold output end, the manifold input end is fixedly connected to the output end of the triple pipe, the triple pipe input end is fixedly connected to one end of the exhaust gas input pipe, and the other end of the exhaust gas input pipe is connected to the coking exhaust gas input equipment; A feed pump is fixedly installed on the side wall of the frame, an input end of the feed pump is fixedly connected to one end of a side pipe, an arc-shaped pipe is fixedly installed on the other end of the side pipe, and the arc-shaped pipe is fixedly installed on the arc-shaped inner wall of the bottom end of the reaction box, a first output end of the feed pump is fixedly connected to one end of a top pipe, and a round pipe is fixedly installed on the other end of the top pipe, and the round pipe is fixedly installed on the outside of the vertical cylinder; An output pipe is fixedly installed at the bottom of the circular tube, and the output pipe passes through the top of the reaction box. The second output end of the feed pump is fixedly connected to one end of the discharge pipe, and the other end of the discharge pipe is connected to the waste collection equipment. The rear end of the reaction box is fixedly connected to one end of the liquid inlet pipe, and the other end of the liquid inlet pipe is connected to the liquid supply equipment of the washing liquid.

[0007] In a further embodiment, the first adsorption layer and the second adsorption layer are both hollow structures, and through holes are provided on the upper and lower surfaces, and the interior of the hollow structure is filled with activated carbon.

[0008] In a further solution, two manifolds are provided, and the two manifolds are mirror-imaged and arranged at both ends of the reaction box, and a single manifold is provided with multiple output ends, so that the exhaust gas can be input into the interior of the reaction box more quickly and evenly.

[0009] In a further solution, the side tubes and arc tubes are provided in multiple groups, and the multiple groups of side tubes and arc tubes are arranged in an equidistant linear array. The output tubes are provided in multiple groups, and the multiple output tubes are arranged in an equidistant circular array with the center of the circular cross-section of the circular tube as the array center, so as to better spray the washing liquid into the interior of the reaction box.

[0010] In a further solution, an auxiliary component is further provided on the reaction box, and the auxiliary component includes a liquid outlet hood, which has a conical structure. The small end of the liquid outlet hood is fixedly installed at the bottom of the output pipe, and the large end of the liquid outlet hood is fixedly installed with a liquid outlet plate. The liquid outlet plate is provided with multiple groups of through holes to better and more evenly spray the washing liquid into the interior of the reaction box.

[0011] In a further solution, a bottom cylinder is fixedly installed at the bottom of the vertical cylinder, a bottom plate is fixedly installed at the bottom of the bottom cylinder, a curved side wall of the bottom cylinder is provided with a penetrating curved groove, and the liquid outlet cover, liquid outlet plate and curved groove are provided in multiple groups, and the multiple groups of liquid outlet covers, liquid outlet plates and curved grooves are all arranged in a circular array with equal spacing, with the center of the circular cross-section of the bottom cylinder as the array center.

[0012] In a further solution, a support rod is fixedly installed on the top of the base plate, a circular plate is fixedly installed on the top of the support rod, a swirl blade is fixedly installed on the curved side wall of the circular plate, the outer side of the swirl blade fits into the curved inner wall of the bottom cylinder, and a plurality of swirl blades are provided to guide the upward path of the exhaust gas.

[0013] In a further solution, a heating assembly is further provided on the reaction box, and the heating assembly includes a bracket, and the bracket is fixedly installed on the curved inner wall of the reaction box, and a cross-shaped tube is fixedly installed inside the center of the bracket, and the vertical section of the cross-shaped tube passes through the center of the first adsorption layer, the second adsorption layer, the bottom plate and the circular plate. The bottom end of the cross-shaped tube is fixedly connected to one end of the steam input pipe, and the other end of the steam input pipe is fixedly connected to the output end of the air pump, and the input end of the air pump is connected to the steam input device. A horizontal tube and a circular tube are fixedly installed at the bottom end of the cross-shaped tube, and there are multiple horizontal tubes, and the length decreases from bottom to top. There are two circular tubes, so that the temperature inside the reaction box is more uniform.

[0014] In a further solution, an energy-saving component is provided on the outside of the cross-shaped tube, and the energy-saving component includes an outer tube, an outer tube is fixedly installed on the outside of the vertical tube, an air intake tube is fixedly installed on the bottom end of the outer tube, a connecting tube is fixedly installed between the cross-shaped tube and the air intake tube, a cavity is opened inside the curved side wall of the outer tube, and an air outlet tube is fixedly installed on the top end of the outer tube, making the device more energy-efficient.

[0015] In a further solution, semicircular bars are provided inside the cavity, and there are multiple groups of semicircular bars, and the multiple groups of semicircular bars are in an staggered and evenly spaced linear array in the up and down directions. The outside of the air outlet tube is fixedly connected to the large end of the air outlet hood, and the air outlet hood is conical. The small end of the air outlet hood is clamped with an air outlet filter plate to prevent external impurities from entering the air outlet hood.

[0016] Compared with the prior art, the present invention provides a coking waste gas purification and recovery device, which has the following beneficial effects: 1. The coking waste gas purification and recovery device, in order to better purify and recover the coking waste gas, sets a purification component, cooperates with a multi-head pipe, a triple-head pipe and a waste gas input pipe to enable the waste gas to be more quickly and evenly input into the reaction box. The arc structure of the reaction box is conducive to subsequent cleaning work and reduces cleaning dead angles. It cooperates with the feeding pump, side pipe, arc pipe, top pipe, circular pipe and output pipe to better extract and spray the washing liquid into the reaction box, so that it can fully contact and react with the waste gas. It cooperates with the discharge pipe to facilitate the extraction of the waste liquid from the reaction box after the reaction is completed, and the initial washing liquid is input into the reaction box through the liquid inlet pipe. Then, it cooperates with the first adsorption layer, the second adsorption layer and the liquid removal layer to better purify and recover the coking waste gas.

[0017] 2. In order to achieve a better purification effect of the purification component, the coking waste gas purification and recovery device sets auxiliary components, cooperates with the liquid outlet hood and the liquid outlet plate to make the output range of the output pipe wider when outputting the washing liquid, so as to better react with the waste gas. In conjunction with the bottom cylinder, the bottom plate and the arc groove, the upward path of the waste gas can be guided, so that the waste gas can only be transported to the inside of the vertical cylinder through the arc groove, and the position of the arc groove corresponds to the position of the output pipe one by one, so that the waste gas is better reacted and purified by the washing liquid. In conjunction with the support rod, the circular ring plate and the swirl blade, the upward-moving waste gas can be guided to form a swirl, thereby prolonging the contact time with the first adsorption layer and the second adsorption layer. In summary, the purification effect of the purification component is better.

[0018] 3. In order to further improve the purification effect of the purification component, the coking waste gas purification and recovery device is equipped with a heating component, which cooperates with the air pump and steam input pipe to transport high-temperature steam to the inside of the cross-shaped tube on the bracket. At the same time, it cooperates with the horizontal tube and the circular tube to make the temperature inside the reaction box more uniform, so that the waste gas and the washing liquid can better combine and react, and then further improve the purification effect of the purification component.

[0019] 4. In order to make better use of the steam in the heating component and make the device more energy-efficient, the coking waste gas purification and recovery device sets an energy-saving component. The steam inside the cross tube moves upward and is transported to the cavity inside the outer tube through the connecting tube and the air inlet tube, thereby heating and insulating the outside of the vertical tube, thereby reducing the temperature difference between the center and the periphery of the first adsorption layer and the second adsorption layer. The steam is discharged to the air outlet hood and the air outlet filter plate through the air outlet tube. The air outlet hood reduces the outflow speed of the steam, and the air outlet filter plate prevents external impurities from entering. Combined with the obstruction of the semicircular bar, the upward flow of steam in the cavity is blocked and the retention time is prolonged. In summary, the steam in the heating component can be better utilized, making the device more energy-efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle; Figure 4 This is a schematic diagram of the connection of some structures of the present invention; Figure 5 This is a schematic diagram of the structural connection of part of the present invention from another perspective; Figure 6 It is a cross-sectional schematic diagram of the reaction box of the present invention; Figure 7 This is a schematic cross-sectional view of a vertical cylinder of the present invention; Figure 8 This is a schematic cross-sectional view of a cross-shaped tube according to the present invention; Figure 9 This is a schematic diagram of a cross-section of a vertical tube of the present invention from a first viewing angle; Figure 10 This is a schematic diagram of the structural connection of the auxiliary components of the present invention; Figure 11 This is a schematic diagram of a cross-section of a vertical tube according to the present invention from a second viewing angle; Figure 12 This is a schematic cross-sectional view of the outer cylinder of the present invention; Figure 13 This is a partial structural cross-sectional exploded view of the energy-saving component of the present invention; Figure 14 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Description of Figure Numbers: 1. Base; 2. Frame; 3. Reaction box; 4. Box cover; 5. Vertical cylinder; 6. Purification tube; 71. First adsorption layer; 72. Second adsorption layer; 73. Liquid removal layer; 8. Purification component; 81. Multi-head pipe; 82. Tri-head pipe; 83. Exhaust gas inlet pipe; 84. Feed pump; 85. Side pipe; 86. Curved pipe; 87. Top pipe; 88. Round pipe; 89. Output pipe; 810. Discharge pipe; 811. Liquid inlet pipe; 9. Auxiliary components; 91. Liquid outlet cover; 92. Liquid outlet plate; 93. Bottom tube; 94. Bottom plate; 95. Arc groove; 96. Support rod; 97. Circular ring plate; 98. Swirl blade; 10. Heating assembly; 101. Bracket; 102. Cross-shaped pipe; 103. Steam inlet pipe; 104. Air pump; 105. Horizontal pipe; 106. Circular pipe; 11. Energy-saving component; 111. Outer tube; 112. Air inlet tube; 113. Connecting tube; 114. Cavity; 115. Air outlet tube; 116. Semicircular bar; 117. Air outlet cover; 118. Air outlet filter plate. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In this application, the term "upper" indicates an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. This is primarily for the purpose of better describing this application and its embodiments, and is not intended to limit the indicated devices, elements, or components to a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, the term "upper" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0024] See also Figures 1-14 , the present invention provides a technical solution: A coking waste gas purification and recovery device includes a base 1 and a frame 2. A reaction box 3 is fixedly installed on the top of the base 1, and the reaction box 3 is fixedly installed inside the frame 2. A box cover 4 is hingedly installed at the front end of the reaction box 3. The box cover 4 is convenient for cleaning and repairing the inside of the reaction box 3 when the device is shut down. A seal is provided between the reaction box 3 and the box cover 4. A vertical cylinder 5 is fixedly installed at the top center of the reaction box 3, and the vertical cylinder 5 is fixedly installed at the inner center of the top of the frame 2. One end of a purification pipe 6 is fixedly installed on the top of the vertical cylinder 5, and the other end of the purification pipe 6 is connected to the purified gas recovery equipment. A first adsorption layer 71, a second adsorption layer 72 and a liquid removal layer 73 are sequentially arranged inside the vertical cylinder 5 from bottom to top. In addition, the first adsorption layer 71 and the second adsorption layer 72 are both internal hollow structures, and through holes are opened on the upper and lower surfaces. The interior of the hollow structure is filled with activated carbon, and the liquid removal layer 73 is convenient for intercepting water molecules in the gas-water mixture.

[0025] In one embodiment of the present invention, a purification component 8 is provided on the reaction box 3, and the purification component 8 includes a manifold 81. The output end of the manifold 81 is fixedly installed on the inclined side wall of the top of the reaction box 3. In addition, there are two manifolds 81, and the two manifolds 81 are mirror-imaged at both ends of the reaction box 3, and a single manifold 81 is provided with four output ends, so that the exhaust gas is input into the interior of the reaction box 3 more quickly and evenly. The input end of the manifold 81 is fixedly connected to the output end of the three-headed pipe 82, and the input end of the three-headed pipe 82 is fixedly connected to one end of the exhaust gas input pipe 83, and the other end of the exhaust gas input pipe 83 is connected to the coking exhaust gas input equipment. A feed pump 84 is fixedly installed on the side wall of the frame 2, and the input end of the feed pump 84 is fixedly connected to one end of the side pipe 85. The other end of the side pipe 85 is fixedly installed with an arc pipe 86, and the arc pipe 86 is fixedly installed on the arc inner wall of the bottom end of the reaction box 3. The first output end of the feed pump 84 is fixedly connected to one end of the top pipe 87, and the other end of the top pipe 87 is fixedly installed with a circular tube 88, which is fixedly installed on the outside of the vertical cylinder 5. An output pipe 89 is fixedly installed at the bottom of the circular tube 88, and the output pipe 89 passes through the top of the reaction box 3. In addition, there are six groups of side tubes 85 and arc tubes 86, and the six groups of side tubes 85 and arc tubes 86 are arranged in an equidistant linear array. There are six output pipes 89, and the six output pipes 89 are arranged with the center of the circular cross-section of the circular tube 88 as the array center, in an equidistant circular array, so as to better spray the washing liquid into the interior of the reaction box 3. The second output end of the feed pump 84 is fixedly connected to one end of the discharge pipe 810, and the other end of the discharge pipe 810 is connected to the waste collection equipment. The rear end of the reaction box 3 is fixedly connected to one end of the liquid inlet pipe 811, and the other end of the liquid inlet pipe 811 is connected to the liquid supply equipment of the washing liquid.

[0026] When this embodiment is used, first, after the coking waste gas is discharged from the waste gas input device, it enters the three-head pipe 82 through the waste gas input pipe 83. The three-head pipe 82 diverts the waste gas and transports it to two manifolds 81 mirror-imaged at both ends of the reaction box 3. The four output ends of each manifold 81 simultaneously input the waste gas quickly and evenly into the interior of the reaction box 3. The arc-shaped structure design of the reaction box 3 can make it easier for cleaning tools to reach every corner during subsequent cleaning, greatly reducing the number of blind spots for cleaning. Prior to this, the liquid supply device for the washing liquid inputs the initial washing liquid (specifically, an alkaline washing liquid containing ammonia and hydrogen sulfide) into the interior of the reaction box 3 through the liquid inlet pipe 811. When the feed pump 84 on the side wall of the frame 2 is started, its input end is connected to the arc tube 86 through the side tube 85. The six groups of equally spaced linear arrays of side tubes 85 and arc tubes 86 can fully extract the washing liquid from the bottom end of the reaction box 3. The washing liquid enters the top tube 87 through the first output end of the feed pump 84, and then flows to the circular tube 88 fixed on the outside of the vertical cylinder 5. The six output pipes 89 of the equally spaced circumferential array at the bottom of the circular tube 88 take the center of its circular cross section as the center of the array, and spray the washing liquid evenly into the interior of the reaction box 3 to ensure that the washing liquid is fully in contact with the exhaust gas and reacts. The washing process will remove harmful substances (naphthalene) in the exhaust gas. The corresponding exhaust gas passes through the first adsorption layer 71 and the second adsorption layer 72 in turn. The activated carbon filled in the hollow structure of these two layers will adsorb the harmful substances in the exhaust gas, and finally intercept the water molecules in the gas-water mixture through the liquid removal layer 73 (the liquid removal layer 73 is made of a material with high-efficiency interception ability, and has a porous structure inside. The size of these pores can allow the gas to pass smoothly and can effectively block the water molecules in the gas-water mixture. When the exhaust gas treated by the first adsorption layer 71 and the second adsorption layer 72 flows upward into the liquid removal layer 73, the water molecules in the gas-water mixture will come into contact with the porous material surface of the liquid removal layer 73. Since water molecules have a certain surface tension, they will be adsorbed on the surface of the material. As the adsorption amount increases, the water molecules gradually gather to form droplets. When the gravity of the droplets exceeds the adsorption force of the material on them, the droplets will drip downward along the inner wall of the liquid removal layer 73 and return to the interior of the reaction box 3. The purified gas can smoothly pass through the pores and continue to flow upward into the purification pipe 6, and finally be transported to the purified gas recovery equipment), and finally complete the purification and recovery of the coking waste gas. After the reaction of the current batch of waste gas is completed, the feed pump 84 is switched to the second output end through the valve, and the waste liquid is pumped to the waste collection equipment through the discharge pipe 810.

[0027] In one embodiment of the present invention, in addition, an auxiliary component 9 is further provided on the reaction box 3, and the auxiliary component 9 includes a liquid outlet cover 91, and the liquid outlet cover 91 has a conical structure. The small end of the liquid outlet cover 91 is fixedly installed at the bottom of the output pipe 89, and the large end of the liquid outlet cover 91 is fixedly installed with a liquid outlet plate 92. The liquid outlet plate 92 is provided with multiple groups of through holes to better spray the washing liquid evenly and widely into the interior of the reaction box 3. In addition, a bottom cylinder 93 is fixedly installed at the bottom of the vertical cylinder 5, and a bottom plate 94 is fixedly installed at the bottom of the bottom cylinder 93. The arc-shaped side wall of the bottom cylinder 93 is provided with a through arc groove 95. There are six groups of liquid outlet covers 91, liquid outlet plates 92 and arc grooves 95, and The six groups of liquid outlet covers 91, liquid outlet plates 92 and arc-shaped grooves 95 are all arranged in an evenly spaced circular array with the center of the circular cross-section of the bottom tube 93 as the array center. In addition, a support rod 96 is fixedly installed on the top of the bottom plate 94. The support rod 96 is provided with two support rods 96. A circular ring plate 97 is fixedly installed on the top of the support rod 96. A swirl blade 98 is fixedly installed on the arc-shaped side wall of the circular ring plate 97. There are multiple swirl blades 98, and the multiple swirl blades 98 are all arranged in an evenly spaced circular array with the center of the circular cross-section of the circular ring plate 97 as the array center. The outside of the swirl blade 98 is in contact with the arc-shaped inner wall of the bottom tube 93. There are multiple swirl blades 98 to guide the upward path of the exhaust gas.

[0028] When this embodiment is used, in order to enhance the effect of the purification component 8, the auxiliary component 9 works together, and the small end of the liquid outlet cover 91 connected to the bottom of the output pipe 89 introduces the washing liquid into the liquid outlet cover 91 with a conical structure. The washing liquid is sprayed out through multiple groups of through holes on the liquid outlet plate 92 at the large end of the liquid outlet cover 91, which significantly expands the output range of the washing liquid, so that the washing liquid can be more widely combined with the exhaust gas. When the exhaust gas runs upward, the bottom cylinder 93, the bottom plate 94 and the arc groove 95 on the arc-shaped side wall of the bottom cylinder 93 at the bottom of the vertical cylinder 5 jointly guide the exhaust gas path. The six groups of liquid outlet covers 91, 91 and 94 are arranged in a circular array with equal spacing, with the center of the circular cross section of the bottom cylinder 93 as the center of the array. The liquid outlet plate 92 and the arc groove 95 cooperate with each other so that the exhaust gas can only enter the vertical cylinder 5 through the arc groove 95 corresponding to the position of the output pipe 89, ensuring that the exhaust gas can fully react with the washing liquid and improve the purification effect. At the same time, the two support rods 96 on the top of the bottom plate 94 support the circular plate 97. The circular plate 97 has a plurality of swirl blades 98 on the arc side wall with the center of its circular cross-section as the center of the array, and an evenly spaced circular array. The outer portion of the swirl blade 98 is in contact with the arc inner wall of the bottom cylinder 93 to guide the upward moving exhaust gas, so that the exhaust gas forms a swirl, which greatly prolongs the contact time of the exhaust gas with the first adsorption layer 71 and the second adsorption layer 72, further improving the purification effect.

[0029] In one embodiment of the present invention, in addition, a heating component 10 is further provided on the reaction box 3, and the heating component 10 includes a bracket 101. The bracket 101 is fixedly installed on the curved inner wall of the reaction box 3, and a cross tube 102 is fixedly installed inside the center of the bracket 101. The vertical section of the cross tube 102 passes through the center of the first adsorption layer 71, the second adsorption layer 72, the bottom plate 94 and the circular plate 97. The bottom end of the cross tube 102 is fixedly connected to one end of the steam input pipe 103, and the other end of the steam input pipe 103 is fixedly connected to the output end of the air pump 104. The input end of the air pump 104 is connected to the steam input device. A horizontal tube 105 and a circular tube 106 are fixedly installed at the bottom end of the cross tube 102. There are three horizontal tubes 105, and the length decreases from bottom to top. There are two circular tubes 106, so that the temperature inside the reaction box 3 is more uniform.

[0030] When this embodiment is in use, the air pump 104 draws steam from the steam input device and transports the high-temperature steam to the cross-shaped tube 102 fixed at the center of the bracket 101 on the curved inner wall of the reaction box 3 through the steam input pipe 103. The vertical section of the cross-shaped tube 102 passes through the center of the first adsorption layer 71, the second adsorption layer 72, the bottom plate 94 and the annular plate 97. The three horizontal tubes 105 and two circular tubes 106 with decreasing length from bottom to top installed at the bottom can keep the internal temperature of the reaction box 3 uniform, create a suitable temperature environment for the reaction of the exhaust gas and the washing liquid, and promote a better reaction between the two.

[0031] In one embodiment of the present invention, in addition, an energy-saving component 11 is provided on the outside of the cross-shaped tube 102, and the energy-saving component 11 includes an outer tube 111, and the outer tube 111 is fixedly installed on the outside of the vertical tube 5, and an air inlet tube 112 is fixedly installed on the bottom end of the outer tube 111, and a connecting tube 113 is fixedly installed between the cross-shaped tube 102 and the air inlet tube 112, and a cavity 114 is opened inside the arc-shaped side wall of the outer tube 111, and an air outlet tube 115 is fixedly installed on the top of the outer tube 111, so that the device is more energy-efficient. In addition, a semicircular bar 116 is provided inside the cavity 114, and the semicircular bar 116 is provided in four groups, and the four groups of semicircular bars 116 are in an staggered and equidistant linear array in the up and down directions. The air outlet tube 115 is fixedly connected to the large end end of the air outlet hood 117 on the outside, and the air outlet hood 117 is conical, and the small end of the air outlet hood 117 is clamped with an air outlet filter plate 118 to prevent external impurities from entering the air outlet hood 117.

[0032] When this embodiment is used, the steam in the cross-shaped tube 102 moves upward, enters the air inlet tube 112 at the bottom end of the outer tube 111 through the connecting tube 113, and then flows into the cavity 114 inside the curved side wall of the outer tube 111. The four groups of semicircular bars 116 in the cavity 114 are staggered in the vertical direction and arranged in a linear array with equal spacing, forming a barrier to the steam, so that the steam is blocked when it flows upward inside the cavity 114, which significantly prolongs the retention time of the steam, allowing the steam to fully heat and insulate the outside of the vertical tube 5, thereby The temperature difference between the center and periphery of the first adsorption layer 71 and the second adsorption layer 72 is reduced to ensure the stability of the adsorption effect. Finally, the steam is discharged to the conical air outlet hood 117 through the air outlet tube 115 at the top of the outer tube 111. The large end of the air outlet hood 117 is connected to the air outlet tube 115, and the air outlet filter plate 118 clamped at the small end can effectively prevent external impurities from entering the air outlet hood 117. At the same time, the air outlet hood 117 slows down the outflow speed of the steam, so that the heat of the steam is fully utilized, thereby achieving the energy-saving effect of the device.

[0033] Among them, the purification pipe 6, the exhaust gas input pipe 83, the side pipe 85, the top pipe 87, the discharge pipe 810, the liquid inlet pipe 811, the steam input pipe 103, the air inlet cylinder 112 and the air outlet cylinder 115 are all provided with valve parts. The electrical components appearing in this application document are all electrically connected to the controller and the 220V AC power, and the controller is a conventional known device that can control the feed pump 84 and the air pump 104. The standard parts used in this application document can all be purchased from the market. The specific connection method of each part is connected by conventional means such as mature rivets and welding in the existing technology, and the standard parts all adopt conventional models in the existing technology. In addition, the circuit connection adopts the conventional connection method in the existing technology, and no specific description is given here.

[0034] While the present invention has been generally described above, modifications and improvements are readily apparent to those skilled in the art. Therefore, modifications and improvements that do not depart from the spirit of the present invention are intended to be within the scope of the present invention.

Claims

1. A coking waste gas purification and recovery device, comprising a base (1) and a frame (2), wherein a reaction box (3) is fixedly mounted on the top of the base (1), a box cover (4) is hingedly mounted on the front end of the reaction box (3), a vertical cylinder (5) is fixedly mounted at the center of the top of the reaction box (3), one end of a purification pipe (6) is fixedly mounted on the top of the vertical cylinder (5), the other end of the purification pipe (6) is connected to a purified gas recovery device, a first adsorption layer (71), a second adsorption layer (72) and a liquid removal layer (73) are sequentially arranged inside the vertical cylinder (5) from bottom to top, and the device is characterized in that: The reaction box (3) is provided with a purification component (8), and the purification component (8) comprises: A manifold (81), the output end of the manifold (81) is fixedly mounted on the inclined side wall of the top end of the reaction box (3), the input end of the manifold (81) is fixedly connected to the output end of the triple-headed pipe (82), the input end of the triple-headed pipe (82) is fixedly connected to one end of the waste gas input pipe (83), and the other end of the waste gas input pipe (83) is connected to the coking waste gas input device; A feed pump (84), the side wall of the frame (2) is fixedly mounted with a feed pump (84), the input end of the feed pump (84) is fixedly connected to one end of a side pipe (85), the other end of the side pipe (85) is fixedly mounted with an arc-shaped pipe (86), the arc-shaped pipe (86) is fixedly mounted on the arc-shaped inner wall of the bottom end of the reaction box (3), the first output end of the feed pump (84) is fixedly connected to one end of a top pipe (87), the other end of the top pipe (87) is fixedly mounted with a circular pipe (88), and the circular pipe (88) is fixedly mounted on the outside of the vertical cylinder (5); An output pipe (89) is fixedly installed at the bottom of the circular tube (88), and the output pipe (89) passes through the top of the reaction box (3). The second output end of the feed pump (84) is fixedly connected to one end of the discharge pipe (810), and the other end of the discharge pipe (810) is connected to a waste collection device. The rear end of the reaction box (3) is fixedly connected to one end of the liquid inlet pipe (811), and the other end of the liquid inlet pipe (811) is connected to a liquid supply device for the washing liquid.

2. The coking waste gas purification and recovery device according to claim 1, characterized in that: The first adsorption layer (71) and the second adsorption layer (72) are both hollow structures, and through holes are provided on the upper and lower surfaces, and the hollow structures are filled with activated carbon.

3. The coking waste gas purification and recovery device according to claim 1, characterized in that: Two manifolds (81) are provided, and the two manifolds (81) are mirror-imaged and arranged at both ends of the reaction box (3), and a single manifold (81) is provided with multiple output ends.

4. The coking waste gas purification and recovery device according to claim 1, characterized in that: The side tubes (85) and the arc tubes (86) are provided in multiple groups, and the multiple groups of the side tubes (85) and the arc tubes (86) are arranged in an equidistant linear array. The output tubes (89) are provided in multiple groups, and the multiple output tubes (89) are arranged in an equidistant circular array with the center of the circular cross section of the circular tube (88) as the array center.

5. The coking waste gas purification and recovery device according to claim 4, characterized in that: The reaction box (3) is further provided with an auxiliary component (9), the auxiliary component (9) comprising a liquid outlet cover (91), the liquid outlet cover (91) being of a conical structure, the bottom of the output tube (89) being fixedly mounted with a small end of the liquid outlet cover (91), the large end of the liquid outlet cover (91) being fixedly mounted with a liquid outlet plate (92), the liquid outlet plate (92) being provided with a plurality of through holes.

6. The coking waste gas purification and recovery device according to claim 5, characterized in that: A bottom cylinder (93) is fixedly mounted on the bottom of the vertical cylinder (5), and a bottom plate (94) is fixedly mounted on the bottom of the bottom cylinder (93). A penetrating arc groove (95) is provided on the arc-shaped side wall of the bottom cylinder (93). The liquid outlet cover (91), the liquid outlet plate (92) and the arc groove (95) are provided in multiple groups, and the multiple groups of liquid outlet covers (91), the liquid outlet plates (92) and the arc groove (95) are all arranged in a circular array with equal spacing, with the center of the circular cross section of the bottom cylinder (93) as the array center.

7. The coking waste gas purification and recovery device according to claim 6, characterized in that: A support rod (96) is fixedly mounted on the top of the bottom plate (94), a circular plate (97) is fixedly mounted on the top of the support rod (96), a swirl blade (98) is fixedly mounted on the arc-shaped side wall of the circular plate (97), the outer portion of the swirl blade (98) is in contact with the arc-shaped inner wall of the bottom cylinder (93), and a plurality of swirl blades (98) are provided.

8. The coking waste gas purification and recovery device according to claim 7, characterized in that: The reaction box (3) is also provided with a heating component (10), and the heating component (10) includes a bracket (101). The bracket (101) is fixedly installed on the arc-shaped inner wall of the reaction box (3), and a cross-shaped tube (102) is fixedly installed in the center of the bracket (101). The vertical section of the cross-shaped tube (102) passes through the center of the first adsorption layer (71), the second adsorption layer (72), the bottom plate (94) and the circular plate (97). The bottom end of the cross-shaped tube (102) is fixedly connected to one end of the steam input tube (103), and the other end of the steam input tube (103) is fixedly connected to the output end of the air pump (104). The input end of the air pump (104) is connected to the steam input device. The bottom end of the cross-shaped tube (102) is fixedly installed with a horizontal tube (105) and a circular tube (106). There are multiple horizontal tubes (105), and the length decreases from bottom to top. There are two circular tubes (106).

9. The coking waste gas purification and recovery device according to claim 8, characterized in that: An energy-saving component (11) is provided on the outside of the cross-shaped tube (102), and the energy-saving component (11) includes an outer tube (111). The outer tube (111) is fixedly installed on the outside of the vertical tube (5), and an air inlet tube (112) is fixedly installed on the bottom end of the outer tube (111). A connecting tube (113) is fixedly installed between the cross-shaped tube (102) and the air inlet tube (112). A cavity (114) is provided inside the arc-shaped side wall of the outer tube (111), and an air outlet tube (115) is fixedly installed on the top end of the outer tube (111).

10. The coking waste gas purification and recovery device according to claim 9, characterized in that: A semicircular bar (116) is provided inside the cavity (114), and the semicircular bar (116) is provided in multiple groups, and the multiple groups of semicircular bars (116) are in a staggered and equidistant linear array in the vertical direction. The outside of the air outlet cylinder (115) is fixedly connected to the large end of the air outlet cover (117), and the air outlet cover (117) is conical. The small end of the air outlet cover (117) is clamped with an air outlet filter plate (118).

Images