Coking waste gas purification and recovery device

Abstract

The application relates to the technical field of environmental protection engineering, and discloses a coking waste gas purification and recovery device. The coking waste gas purification and recovery device comprises a base and a rack, a reaction box is fixedly installed on the top of the base, the reaction box is fixedly installed in the inside of the rack, and a purification assembly is arranged on the reaction box. The coking waste gas purification and recovery device is provided with the purification assembly, a multi-head pipe, a three-head pipe and a waste gas input pipe, so that the waste gas can be more quickly and uniformly input into the inside of the reaction box. The arc-shaped structure of the reaction box is favorable for subsequent cleaning work and reduces the cleaning dead angle. A material conveying pump, a side pipe, an arc-shaped pipe, a top pipe, a circular pipe and an output pipe can better extract and spray the washing liquid to the inside of the reaction box to fully contact and react with the waste gas. A discharge pipe is convenient for extracting the waste liquid from the reaction box after the reaction is completed. The initial washing liquid is input into the inside of the reaction box through a liquid inlet pipe, and the first adsorption layer, the second adsorption layer and the liquid removal layer can better purify and recover the coking waste gas.

Description

TECHNICAL FIELD

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

[0002] In the coking industry, its production process covers coal preparation, coking, recovery, refined benzene, tar and other chemical refining and other workshops. Due to the particularity of the process, various waste gases are produced, such as hydrogen sulfide, hydrogen cyanide, ammonia, tar, naphthalene, benzene series and other volatile organic compounds (VOCs). If these waste gases are not effectively treated and directly discharged, not only will they cause serious pollution to the surrounding atmospheric environment, causing 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, possibly leading to respiratory diseases, cancer and other serious consequences.

[0003] Under this background, efficient purification and recovery of coking waste gas has become an urgent need for the development of the industry. The washing method in the prior art, as one of the methods commonly used by coking plants to treat tank waste gas, has a single structure, and the input mode of the waste gas and the output form of the washing liquid are not closely combined, so the washing effect is difficult to guarantee, the removal efficiency of harmful substances in the waste gas is low, the waste gas and the washing liquid cannot be heated by steam, and the steam heat energy is not fully utilized, which is not energy-saving.

[0004] In view of this, we propose a coking waste gas purification and recovery device. SUMMARY

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

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A coking waste gas purification and recovery device, comprising a base and a rack, the top of the base is fixedly installed with a reaction box, the reaction box is fixedly installed in the inside of the rack, the front end of the reaction box is hingedly installed with a box cover, a sealing element is arranged between the reaction box and the box cover, a vertical cylinder is fixedly installed at the top center of the reaction box, the vertical cylinder is fixedly installed at the top center inside of the rack, one end of a purification pipe is fixedly installed at the top of the vertical cylinder, the other end of the purification pipe is connected with a purification gas recovery equipment, 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 assembly is arranged on the reaction box, and the purification assembly comprises:

[0008] A multi-head pipe, a multi-head pipe output end is fixedly installed on the inclined sidewall at the top end of the reaction box, a three-head pipe output end is fixedly connected to the multi-head pipe input end, a waste gas input pipe one end is fixedly connected to the three-head pipe input end, and a coking waste gas input equipment is connected to the other end of the waste gas input pipe.

[0009] The side wall of the rack is fixedly provided with a feed pump, one end of the feed pump is fixedly connected with one end of a side pipe, the other end of the side pipe is fixedly provided with an arc-shaped pipe, the arc-shaped pipe is fixedly installed on the arc-shaped inner wall at the bottom end of the reaction box, one end of a top pipe is fixedly connected with the first output end of the feed pump, the other end of the top pipe is fixedly provided with a circular pipe, and the circular pipe is fixedly installed on the outside of the vertical cylinder.

[0010] The bottom of the circular pipe is fixedly provided with an output pipe, the output pipe penetrates through the top of the reaction box, one end of a discharge pipe is fixedly connected with the second output end of the feed pump, the other end of the discharge pipe is connected with a waste collecting device, one end of a liquid inlet pipe is fixedly connected with the rear end of the reaction box, and the other end of the liquid inlet pipe is connected with a liquid supply device of the washing liquid.

[0011] In a further scheme, the first adsorption layer and the second adsorption layer are both hollow structures, and through holes are formed in the upper and lower surfaces, and the hollow structures are filled with activated carbon.

[0012] In a further scheme, two multi-head pipes are provided, and the two multi-head pipes are mirror images arranged at the two ends of the reaction box, and each multi-head pipe is provided with multiple output ends, so that the waste gas is more quickly and uniformly input into the reaction box.

[0013] In a further scheme, multiple groups of side pipes and arc-shaped pipes are provided, and the multiple groups of side pipes and arc-shaped pipes are linearly arrayed at equal intervals, and multiple output pipes are provided, and the multiple output pipes are circularly arrayed at equal intervals with the center of the circular cross section of the circular pipe as the array center, so that the washing liquid is better sprayed into the reaction box.

[0014] In a further scheme, an auxiliary assembly is further arranged on the reaction box, the auxiliary assembly comprises a liquid outlet cover, the liquid outlet cover is in a conical structure, the small end of the liquid outlet cover is fixedly installed at the bottom of the output pipe, the large end of the liquid outlet cover is fixedly installed with a liquid outlet plate, multiple through holes are formed in the liquid outlet plate, and the washing liquid is better sprayed into the reaction box.

[0015] In a further scheme, 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, an arc-shaped groove is formed in the arc-shaped side wall of the bottom cylinder, multiple groups of the liquid outlet cover, the liquid outlet plate and the arc-shaped groove are provided, and the multiple groups of the liquid outlet cover, the liquid outlet plate and the arc-shaped groove are circularly arrayed at equal intervals with the center of the circular cross section of the bottom cylinder as the array center, and the arc-shaped groove and the output pipe are one-to-one corresponding.

[0016] In a further scheme, the bottom plate top is fixedly installed with a support rod, the support rod top is fixedly installed with a circular ring plate, the circular ring plate arc-shaped side wall is fixedly installed with a cyclone vane, the cyclone vane is externally attached to the arc-shaped inner wall of the bottom cylinder, and the cyclone vane is provided with a plurality of cyclone vanes to guide the path of the waste gas running upward.

[0017] In a further scheme, the reaction box is further provided with a heating assembly, the heating assembly comprises a support, the arc-shaped inner wall of the reaction box is fixedly installed with the support, the center of the support is fixedly installed with a cross-shaped tube, the vertical section of the cross-shaped tube penetrates through the center of the first adsorption layer, the second adsorption layer, the bottom plate and the circular ring plate, the bottom end of the cross-shaped tube is fixedly connected with one end of the steam input pipe, the other end of the steam input pipe is fixedly connected with the output end of the air pump, the input end of the air pump is connected with the steam input device, the bottom end of the cross-shaped tube is fixedly installed with a horizontal pipe and a circular pipe, the horizontal pipe is provided with a plurality of horizontal pipes, and the length of the horizontal pipe decreases from bottom to top, and the circular pipe is provided with two circular pipes, so that the temperature inside the reaction box is more uniform.

[0018] In a further scheme, the vertical cylinder is externally provided with an energy-saving assembly, the energy-saving assembly comprises an outer cylinder, the outer cylinder is fixedly installed on the outer side of the vertical cylinder, the bottom end of the outer cylinder is fixedly installed with an air inlet cylinder, the cross-shaped tube and the air inlet cylinder are fixedly installed with a connecting cylinder, the arc-shaped side wall of the outer cylinder is internally provided with a cavity, and the top end of the outer cylinder is fixedly installed with an air outlet cylinder, so that the device is more energy-saving.

[0019] In a further scheme, the cavity is internally provided with a semicircular strip, the semicircular strip is provided with a plurality of groups, and the plurality of groups of semicircular strips are arranged in an up-and-down staggered equidistant linear array, the outer end of the air outlet cylinder is fixedly connected with the large end of the air outlet cover, the air outlet cover is conical, and the small end of the air outlet cover is clamped with an air outlet filter plate, so as to prevent external impurities from entering the air outlet cover.

[0020] Compared with the prior art, the present application provides a coking waste gas purification and recovery device, which has the following advantages:

[0021] 1. The coking waste gas purification and recovery device is provided with a purification assembly, a multi-head pipe, a three-head pipe and a waste gas input pipe, so that the waste gas can be more quickly and uniformly input into the reaction box, the arc-shaped structure of the reaction box is beneficial to subsequent cleaning work and reduces the cleaning dead angle, and the combination of the material conveying pump, the side pipe, the arc-shaped pipe, the top pipe, the circular pipe and the output pipe can better extract and spray the washing liquid into the reaction box, so that the washing liquid can be fully contacted with the waste gas for reaction, the combination of the material discharging pipe facilitates the extraction of the waste liquid from the reaction box after the reaction, the initial washing liquid can be input into the reaction box through the liquid inlet pipe, and the combination of the first adsorption layer, the second adsorption layer and the liquid removal layer can better purify and recover the coking waste gas.

[0022] 2. To improve the purification effect of the coking waste gas purification and recovery device, auxiliary components are added. These, along with a liquid outlet hood and plate, allow for a wider output range of the washing liquid from the output pipe, thus enabling better reaction with the waste gas. The bottom cylinder, bottom plate, and arc-shaped groove guide the upward flow of the waste gas, ensuring it can only be transported into the vertical cylinder through the arc-shaped groove. The arc-shaped groove corresponds precisely to the output pipe, facilitating better purification of the waste gas by the washing liquid. Furthermore, the support rod, annular plate, and swirl blades guide the upward-moving waste gas, creating a swirling flow and extending the contact time with the first and second adsorption layers. In summary, this results in a better purification effect for the purification components.

[0023] 3. In order to further improve the purification effect of the purification components, the coking waste gas purification and recovery device is equipped with a heating component, which, together with an air pump and a steam input pipe, delivers high-temperature steam into the cross-shaped tube on the support. At the same time, with the help of horizontal and circular tubes, the temperature inside the reaction chamber is made more uniform, so that the waste gas and the washing liquid can better combine and react, thereby further improving the purification effect of the purification components.

[0024] 4. In order to better utilize the steam in the heating components and make the device more energy-efficient, this coking waste gas purification and recovery device is equipped with energy-saving components. The steam inside the cross-shaped tube moves upward and is transported to the cavity inside the outer cylinder through the connecting cylinder and the air inlet cylinder, thereby heating and insulating the outside of the vertical cylinder. This reduces the temperature difference between the center and the periphery of the first and second adsorption layers. The steam is discharged through the air outlet cylinder to the air outlet hood and the air outlet filter plate. The air outlet hood reduces the steam outflow velocity, and the air outlet filter plate prevents external impurities from entering. With the obstruction of the semi-circular strip, the upward flow of steam inside the cavity is hindered, and the residence time is extended. In summary, the steam in the heating components can be better utilized, making the device more energy-efficient. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0027] Figure 3 For the present invention Figure 2 Enlarged structural diagram of region A in the middle;

[0028] Figure 4 This is a schematic diagram of the connection of some parts of the structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the structural connections from another perspective of the present invention;

[0030] Figure 6 This is a cross-sectional schematic diagram of the reaction chamber of the present invention;

[0031] Figure 7 Figure 1 is a schematic diagram of the vertical cylinder cross section of the present application;

[0032] Figure 8 Figure 2 is a schematic diagram of the cross-shaped tube cross section of the present application;

[0033] Figure 9 Figure 3 is a schematic diagram of the vertical cylinder cross section from the first perspective of the present application;

[0034] Figure 10 Figure 4 is a schematic diagram of the auxiliary assembly partial structure connection of the present application;

[0035] Figure 11 Figure 5 is a schematic diagram of the vertical cylinder cross section from the second perspective of the present application;

[0036] Figure 12 Figure 6 is a schematic diagram of the outer cylinder cross section of the present application;

[0037] Figure 13 Figure 7 is an exploded view of the energy-saving assembly partial structure of the present application;

[0038] Figure 14 Figure 8 is a schematic diagram of the three-dimensional structure of the present application.

[0039] Explanation of the reference signs:

[0040] 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;

[0041] 8, purification assembly; 81, multi-head tube; 82, three-head tube; 83, waste gas input tube; 84, material conveying pump; 85, side tube; 86, arc-shaped tube; 87, top tube; 88, circular tube; 89, output tube; 810, discharge tube; 811, liquid inlet tube;

[0042] 9, auxiliary assembly; 91, liquid outlet cover; 92, liquid outlet plate; 93, bottom cylinder; 94, bottom plate; 95, arc-shaped groove; 96, support rod; 97, circular ring plate; 98, cyclone blade;

[0043] 10, heating assembly; 101, support; 102, cross-shaped tube; 103, steam input tube; 104, air pump; 105, horizontal tube; 106, circular tube;

[0044] 11, energy-saving assembly; 111, outer cylinder; 112, air inlet cylinder; 113, connecting cylinder; 114, cavity; 115, air outlet cylinder; 116, semicircular strip; 117, air outlet cover; 118, air outlet filter plate. DETAILED DESCRIPTION

[0045] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0046] In the present application, the term "upper" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is mainly used for better describing the present application and its embodiments, and is not used for limiting the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. Also, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0047] Please refer to Figures 1-14 The present application provides a technical solution:

[0048] The coking waste gas purification and recovery device comprises a base 1 and a rack 2, the top of the base 1 is fixedly provided with a reaction box 3, the reaction box 3 is fixedly installed in the inside of the rack 2, the front end of the reaction box 3 is hingedly provided with a box cover 4, the box cover 4 is convenient for cleaning and repairing the inside of the reaction box 3 when the device is stopped, a sealing element is arranged between the reaction box 3 and the box cover 4, the top end center of the reaction box 3 is fixedly provided with a vertical cylinder 5, the vertical cylinder 5 is fixedly installed in the top end inside center of the rack 2, the top of the vertical cylinder 5 is fixedly provided with one end of a purification pipe 6, the other end of the purification pipe 6 is connected with a purification gas recovery equipment, the inside of the vertical cylinder 5 is sequentially provided with a first adsorption layer 71, a second adsorption layer 72 and a liquid removal layer 73 from bottom to top, in addition, the first adsorption layer 71 and the second adsorption layer 72 are both hollow structures, and the upper and lower surfaces of the hollow structures are both provided with penetrating through-holes, the inside 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.

[0049] In an embodiment of the present application, the reaction box 3 is provided with a purification assembly 8, the purification assembly 8 comprises a multi-head pipe 81, the multi-head pipe 81 output end is fixedly installed on the top end inclined side wall of the reaction box 3, in addition, two multi-head pipes 81 are provided, and the two multi-head pipes 81 are mirror image arranged at both ends of the reaction box 3, and a single multi-head pipe 81 is provided with four output ends, so that the waste gas is more quickly and uniformly input into the inside of the reaction box 3, the multi-head pipe 81 input end is fixedly connected with the three-head pipe 82 output end, the three-head pipe 82 input end is fixedly connected with one end of the waste gas input pipe 83, the other end of the waste gas input pipe 83 is connected with the coking waste gas input device, the rack 2 side wall is fixedly installed with the material conveying pump 84, one end of the material conveying pump 84 input end is fixedly connected with the side pipe 85, the other end of the side pipe 85 is fixedly installed with the arc-shaped pipe 86, the arc-shaped pipe 86 is fixedly installed on the arc-shaped inner wall at the bottom end of the reaction box 3, one end of the first output end of the material conveying pump 84 is fixedly connected with the top pipe 87, the other end of the top pipe 87 is fixedly installed with the circular pipe 88, the circular pipe 88 is fixedly installed outside the vertical cylinder 5, the bottom of the circular pipe 88 is fixedly installed with the output pipe 89, the output pipe 89 penetrates through the top of the reaction box 3, in addition, the side pipe 85 and the arc-shaped pipe 86 are provided with six groups, and the six groups of side pipes 85 and arc-shaped pipes 86 are linearly arrayed at equal intervals, the output pipe 89 is provided with six, and the six output pipes 89 are circularly arrayed at equal intervals with the center of the circular cross section of the circular pipe 88 as the array center, which can better spray the washing liquid into the inside of the reaction box 3, one end of the second output end of the material conveying pump 84 is fixedly connected with the discharge pipe 810, the other end of the discharge pipe 810 is connected with the waste material collecting device, one end of the liquid inlet pipe 811 fixedly connected with the reaction box 3 rear end, the other end of the liquid inlet pipe 811 is connected with the washing liquid supply device.

[0050] When the embodiment is used, first, the coking waste gas is discharged from the waste gas input device, enters the three-way pipe 82 through the waste gas input pipe 83, and is transported to the multi-way pipes 81 mirror-imaged at both ends of the reaction box 3 after being branched by the three-way pipe 82. The four output ends of each multi-way pipe 81 simultaneously input the waste gas into the reaction box 3 quickly and uniformly. The arc-shaped structure design of the reaction box 3 makes it easier for the cleaning tool to reach each corner during subsequent cleaning, greatly reducing the cleaning dead angle. Before that, the liquid supply device of the washing liquid inputs the initial washing liquid (specifically, the alkaline washing liquid containing ammonia and hydrogen sulfide) into the reaction box 3 through the liquid inlet pipe 811. When the material pump 84 on the side wall of the rack 2 is started, the input end thereof is connected to the arc-shaped pipe 86 through the side pipe 85. The six groups of equidistant linear arrays of the side pipe 85 and the arc-shaped pipe 86 can comprehensively extract the washing liquid at the bottom end of the reaction box 3. The washing liquid enters the top pipe 87 through the first output end of the material pump 84, and then flows to the circular pipe 88 fixed outside the vertical cylinder 5. The six output pipes 89 with equidistant circumferential arrays and with the center of the circular cross section as the array center uniformly spray the washing liquid into the reaction box 3, ensuring that the washing liquid and the waste gas are in full contact and react. The harmful substances (naphthalene) in the waste gas are removed during the washing process. The reacted waste 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 the two layers can adsorb the harmful substances in the waste gas. Finally, the water molecules in the gas-water mixture are intercepted by the liquid removal layer 73 (the liquid removal layer 73 is made of a material with high interception capacity and has a porous structure. The size of the pores allows the gas to pass through smoothly and effectively blocks the water molecules in the gas-water mixture. When the waste 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 come into contact with the surface of the porous material of the liquid removal layer 73. Due to the surface tension of the water molecules, they are 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, the droplets will drip down along the inner wall of the liquid removal layer 73 and return to the reaction box 3, while the purified gas can pass through the pores and continue to flow upward into the purification pipe 6, and finally be transported to the purified gas recovery device). Finally, the purification and recovery of the coking waste gas are completed. After the reaction of the current batch of waste gas is completed, the material pump 84 is switched to the second output end through the valve, and the waste liquid is pumped to the waste material collection device through the discharge pipe 810.

[0051] In an embodiment of the present application, additionally, the reaction box 3 is additionally provided with an auxiliary assembly 9, the auxiliary assembly 9 comprises a liquid outlet cover 91, the liquid outlet cover 91 is in a conical structure, the bottom of the output pipe 89 is fixedly installed with a small end of the liquid outlet cover 91, the large end of the liquid outlet cover 91 is fixedly installed with a liquid outlet plate 92, a plurality of groups of through holes are formed in the liquid outlet plate 92, which can better uniformly and widely spray the washing liquid into the reaction box 3, additionally, the bottom of the vertical cylinder 5 is fixedly installed with a bottom cylinder 93, the bottom of the bottom cylinder 93 is fixedly installed with a bottom plate 94, the arc-shaped side wall of the bottom cylinder 93 is provided with a through arc-shaped groove 95, the liquid outlet cover 91, the liquid outlet plate 92 and the arc-shaped groove 95 are provided with six groups, and the six groups of liquid outlet cover 91, liquid outlet plate 92 and arc-shaped groove 95 are arranged at equal intervals on the circumference with the center of the circular cross section of the bottom cylinder 93 as the array center, additionally, the top of the bottom plate 94 is fixedly installed with a support rod 96, the top of the two support rods 96 is fixedly installed with a circular ring plate 97, the arc-shaped side wall of the circular ring plate 97 is fixedly installed with a cyclone vane 98, the cyclone vane 98 is provided with a plurality of groups, and the plurality of groups of cyclone vanes 98 are arranged at equal intervals on the circumference with the center of the circular cross section of the circular ring plate 97 as the array center, the outer part of the cyclone vane 98 is attached to the arc-shaped inner wall of the bottom cylinder 93, and the cyclone vane 98 is provided with a plurality of groups to guide the path of the waste gas running upward.

[0052] When the present embodiment is used, in order to enhance the effect of the purification assembly 8, the auxiliary assembly 9 cooperates with the small end of the liquid outlet cover 91 connected to the bottom of the output pipe 89 to guide the washing liquid into the conical liquid outlet cover 91, the washing liquid is sprayed out through the plurality of groups of through holes in 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 more widely combine with the waste gas, when the waste gas runs upward, the bottom cylinder 93, the bottom plate 94 and the arc-shaped groove 95 on the arc-shaped side wall of the bottom cylinder 93 at the bottom of the vertical cylinder 5 jointly guide the path of the waste gas, the six groups of liquid outlet cover 91, liquid outlet plate 92 and arc-shaped groove 95 arranged at equal intervals on the circumference with the center of the circular cross section of the bottom cylinder 93 as the array center cooperate with each other to make the waste gas only pass through the arc-shaped groove 95 corresponding to the position of the output pipe 89 to enter the vertical cylinder 5, which ensures that the waste gas can fully react with the washing liquid to improve the purification effect, at the same time, the two support rods 96 at the top of the bottom plate 94 support the circular ring plate 97, the plurality of groups of cyclone vanes 98 arranged at equal intervals on the circumference with the center of the circular cross section of the circular ring plate 97 as the array center on the arc-shaped side wall of the circular ring plate 97, the outer part of which is attached to the arc-shaped inner wall of the bottom cylinder 93, guide the waste gas moving upward, so that the waste gas forms a cyclone, which greatly prolongs the contact time of the waste gas with the first adsorption layer 71 and the second adsorption layer 72, further improving the purification effect.

[0053] In an embodiment of the present application, additionally, the reaction box 3 is additionally provided with a heating assembly 10, the heating assembly 10 comprises a support 101, the arc-shaped inner wall of the reaction box 3 is fixedly installed with the support 101, the center of the support 101 is fixedly installed with a cross-shaped pipe 102, the vertical section of the cross-shaped pipe 102 penetrates the center of the first adsorption layer 71, the second adsorption layer 72, the bottom plate 94 and the annular plate 97, the bottom end of the cross-shaped pipe 102 is fixedly connected with one end of a steam input pipe 103, the other end of the steam input pipe 103 is fixedly connected with the output end of an air pump 104, the input end of the air pump 104 is connected with a steam input device, the bottom end of the cross-shaped pipe 102 is fixedly installed with a horizontal pipe 105 and a circular pipe 106, the horizontal pipe 105 is provided with three, and the length decreases from bottom to top, the circular pipe 106 is provided with two, so that the temperature inside the reaction box 3 is more uniform.

[0054] When the present embodiment is used, the air pump 104 extracts steam from the steam input device, and high-temperature steam is transported into the cross-shaped pipe 102 fixed in the center of the support 101 of the arc-shaped inner wall of the reaction box 3 through the steam input pipe 103, the vertical section of the cross-shaped pipe 102 penetrates the center of the first adsorption layer 71, the second adsorption layer 72, the bottom plate 94 and the annular plate 97, and the three horizontal pipes 105 and the two circular pipes 106 installed at the bottom end can keep the temperature inside the reaction box 3 uniform, create a suitable temperature environment for the reaction of the exhaust gas and the washing liquid, and promote the better reaction of the two.

[0055] In an embodiment of the present application, additionally, the outside of the vertical cylinder 5 is provided with an energy-saving assembly 11, the energy-saving assembly 11 comprises an outer cylinder 111, the outer cylinder 111 is fixedly installed outside the vertical cylinder 5, the bottom end of the outer cylinder 111 is fixedly installed with an air inlet cylinder 112, the connection cylinder 113 is fixedly installed between the cross-shaped pipe 102 and the air inlet cylinder 112, the arc-shaped side wall of the outer cylinder 111 is internally provided with a cavity 114, and the top end of the outer cylinder 111 is fixedly installed with an air outlet cylinder 115, so that the device is more energy-saving, additionally, the cavity 114 is internally provided with a semicircular strip 116, the semicircular strip 116 is provided with four groups, and the four groups of semicircular strips 116 are arranged in an upward and downward staggered equidistant linear array, the large end of the air outlet cover 117 is fixedly connected with the air outlet cover 117, the air outlet cover 117 is conical, and the small end of the air outlet cover 117 is clamped with an air outlet filter plate 118, so as to avoid the entry of external impurities into the air outlet cover 117.

[0056] In use, the steam in the cross-shaped tube 102 moves upward, enters the air inlet cylinder 112 at the bottom end of the outer cylinder 111 through the connecting cylinder 113, and then flows into the cavity 114 inside the arc-shaped side wall of the outer cylinder 111. The four groups of semicircular strips 116 in the cavity 114 are linear arrays staggered in the up-down direction and equally spaced, which block the steam and make the steam flow upward in the cavity 114 difficult, significantly prolonging the residence time of the steam and allowing the steam to fully heat and insulate the outside of the vertical cylinder 5, thereby reducing the temperature difference between the center and the periphery of the first adsorption layer 71 and the second adsorption layer 72 and ensuring the stability of the adsorption effect. Finally, the steam is discharged to the conical gas outlet cover 117 through the gas outlet cylinder 115 at the top end of the outer cylinder 111. The large end of the gas outlet cover 117 is connected to the gas outlet cylinder 115, and the small end is clamped to the gas filter plate 118, which can effectively prevent external impurities from entering the gas outlet cover 117. At the same time, the gas outlet cover 117 slows down the outflow speed of the steam, so that the heat of the steam can be fully utilized, achieving the energy-saving effect of the device.

[0057] Among them, the purification pipe 6, the waste 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 elements. The electrical elements appearing in the present application are all electrically connected to the controller and 220V mains, and the controller is a conventional known device capable of controlling the feed pump 84 and the air pump 104. The standard parts used in the present application can be purchased from the market. The specific connection mode of each part is connected by conventional means such as rivets and welding in the prior art, and the standard parts all adopt conventional models in the prior art. In addition, the connection of the circuit adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0058] The above has made a detailed description of the present application in general, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit and principles of the present application are within the scope of protection of the present application.

Claims

1. A coking waste gas purification and recovery device, comprising a base (1) and a frame (2), wherein a reaction chamber (3) is fixedly installed on the top of the base (1), a cover (4) is hinged to the front end of the reaction chamber (3), a vertical cylinder (5) is fixedly installed at the center of the top of the reaction chamber (3), 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 a purified gas recovery device, wherein a first adsorption layer (71), a second adsorption layer (72) and a liquid removal layer (73) are arranged sequentially from bottom to top inside the vertical cylinder (5), characterized in that: The reaction box (3) is provided with a purification assembly (8), the purification assembly (8) comprises a multi-head pipe (81), the multi-head pipe (81) output end is fixedly installed on the top end inclined side wall of the reaction box (3), the multi-head pipe (81) input end is fixedly connected with the three-head pipe (82) output end, the three-head pipe (82) input end is fixedly connected with the waste gas input pipe (83) one end, the waste gas input pipe (83) other end is connected with the coking waste gas input device, the rack (2) side wall is fixedly installed with the material conveying pump (84), the material conveying pump (84) input end is fixedly connected with the side pipe (85) one end, the side pipe (85) other end is fixedly installed with the arc-shaped pipe (86), the arc-shaped pipe (86) is fixedly installed on the arc-shaped inner wall of the reaction box (3) bottom end, the material conveying pump (84) first output end is fixedly connected with the top pipe (87) one end, the top pipe (87) other end is fixedly installed with the circular pipe (88), the circular pipe (88) is fixedly installed on the vertical cylinder (5) outside, the circular pipe (88) bottom is fixedly installed with the output pipe (89), the output pipe (89) penetrates the reaction box (3) top, the material conveying pump (84) second output end is fixedly connected with the discharge pipe (810) one end, the discharge pipe (810) other end is connected with the waste material collecting device, the reaction box (3) rear end is fixedly connected with the liquid inlet pipe (811) one end, the liquid inlet pipe (811) other end is connected with the washing liquid supply device, the output pipe (89) is provided with a plurality of, and a plurality of the output pipe (89) is arranged as the array center with the circular cross section center of the circular pipe (88), and is arranged in equal interval circumferential array. The reaction box (3) is further provided with an auxiliary assembly (9), the auxiliary assembly (9) comprises a liquid outlet cover (91), the liquid outlet cover (91) is in the conical structure, the output pipe (89) bottom is fixedly installed with the liquid outlet cover (91) small head end, the liquid outlet cover (91) big head end is fixedly installed with the liquid outlet plate (92), the liquid outlet plate (92) is provided with a plurality of through holes, the vertical cylinder (5) bottom is fixedly installed with the bottom cylinder (93), the bottom cylinder (93) bottom is fixedly installed with the bottom plate (94), the arc-shaped side wall of the bottom cylinder (93) is provided with the arc-shaped slot (95), the liquid outlet cover (91), the liquid outlet plate (92) and the arc-shaped slot (95) are provided with a plurality of, and a plurality of the liquid outlet cover (91), the liquid outlet plate (92) and the arc-shaped slot (95) are arranged as the array center with the circular cross section center of the bottom cylinder (93), and are arranged in equal interval circumferential array, the arc-shaped slot (95) and the output pipe (89) position one-to-one correspondence.

2. The coking off gas cleaning and recovery apparatus according to claim 1, characterized by: The first adsorption layer (71) and the second adsorption layer (72) are both hollow structures, and the upper and lower surfaces are provided with through holes, and the hollow structure is filled with activated carbon.

3. The coking off gas cleaning and recovery apparatus according to claim 1, characterized in that: The multi-head pipe (81) is provided with two, and the two multi-head pipes (81) are mirror image arranged on both ends of the reaction box (3), and a single multi-head pipe (81) is provided with a plurality of output ends.

4. The coking off gas cleaning and recovery apparatus according to claim 1, characterized in that: The side pipe (85) and the arc-shaped pipe (86) are provided with multiple groups, and the multiple groups of the side pipe (85) and the arc-shaped pipe (86) are linearly arrayed at equal intervals.

5. The coking off gas cleaning and recovery apparatus according to claim 4, wherein: A support rod (96) is fixedly installed on the top of the bottom plate (94), a circular ring plate (97) is fixedly installed on the top of the support rod (96), a cyclone vane (98) is fixedly installed on the arc-shaped side wall of the circular ring plate (97), the cyclone vane (98) is attached to the arc-shaped inner wall of the bottom cylinder (93) outside, and the cyclone vane (98) is provided with multiple groups.

6. The coking off gas cleaning and recovery apparatus according to claim 5, characterized in that: The reaction box (3) is further provided with a heating assembly (10), the heating assembly (10) comprises a bracket (101), the bracket (101) is fixedly installed on the arc-shaped inner wall of the reaction box (3), a cross-shaped pipe (102) is fixedly installed in the center of the bracket (101), the vertical section of the cross-shaped pipe (102) penetrates the center of the first adsorption layer (71), the second adsorption layer (72), the bottom plate (94) and the circular ring plate (97), one end of a steam input pipe (103) is fixedly connected to the bottom end of the cross-shaped pipe (102), the other end of the steam input pipe (103) is fixedly connected to the output end of an air pump (104), the input end of the air pump (104) is connected to a steam input device, a horizontal pipe (105) and a circular pipe (106) are fixedly installed on the bottom end of the cross-shaped pipe (102), the horizontal pipe (105) is provided with multiple groups and decreases in length from bottom to top, and the circular pipe (106) is provided with two groups.

7. The coking off gas cleaning and recovery apparatus according to claim 6, characterized in that: The vertical cylinder (5) is externally provided with an energy-saving assembly (11), the energy-saving assembly (11) comprises an outer cylinder (111), the outer cylinder (111) is fixedly installed on the outer side of the vertical cylinder (5), an air inlet cylinder (112) is fixedly installed on the bottom end of the outer cylinder (111), a connecting cylinder (113) is fixedly installed between the cross-shaped pipe (102) and the air inlet cylinder (112), a cavity (114) is formed in the arc-shaped side wall of the outer cylinder (111), and an air outlet cylinder (115) is fixedly installed on the top end of the outer cylinder (111).

8. The coking off gas cleaning and recovery apparatus according to claim 7, characterized in that: The cavity (114) is internally provided with a semicircular strip (116), the semicircular strip (116) is provided with multiple groups, and the multiple groups of the semicircular strip (116) are linearly arrayed at equal intervals in the up-down direction, the air outlet cylinder (115) is fixedly connected to the large end of an air outlet cover (117), the air outlet cover (117) is conical, and an air outlet filter plate (118) is connected to the small end of the air outlet cover (117).

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