Tail gas treatment device and method for coal water slurry additive production workshop

Abstract

The invention discloses a coal water slurry additive production workshop tail gas treatment device and method, and relates to the technical field of waste gas treatment.The coal water slurry additive production workshop tail gas treatment device comprises a gas outlet pipe and two adsorption cabins which are connected in series through the gas outlet pipe, and the bottoms of the two adsorption cabins are each provided with an adsorption mechanism used for adsorbing particulate matter in additive waste gas; the upper portions of the two adsorption mechanisms are jointly connected with a gas inlet pipe, and one end of the gas inlet pipe is connected with a temperature rising mechanism used for conducting temperature rising treatment on waste gas. Waste gas in the communicating cover is directly combusted and heated through the combustor, the waste gas can be rapidly heated to the temperature range suitable for decomposition or conversion of VOCs, the VOCs in the waste gas are more active due to the high temperature, and part of low-boiling-point VOCs can even be directly converted into the form, such as liquid or solid particles, more easily captured from the gas state, so that the VOCs in the waste gas can be effectively decomposed or converted. Therefore, the VOCs can be more easily captured by a subsequent adsorption or filtering device, and more VOCs can be separated from the waste gas after combustion heating treatment.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a device and method for treating tail gas in a water-coal slurry additive production workshop. Background Art

[0002] The tail gas treatment device of the coal water slurry additive production workshop is designed to effectively remove volatile organic compounds (VOCs) and sticky or deliquescent particles generated during the production process.

[0003] For example, the publication number is CN118217737A, which is called a flue gas treatment device, and belongs to the field of display panel production technology. The invention can break up particles such as boron oxide crystals, prevent equipment clogging, improve the efficiency of flue gas treatment, and contribute to the mass production of flat panel displays.

[0004] For example, the publication number is CN117323752A, and the name is circulating fluidized bed boiler exhaust gas treatment device, which relates to the technical field of circulating fluidized bed boilers. The heating chambers distributed on the rotating column of the invention can be used to push the exhaust gas in batches, and the distributed heating chambers pass through the positions of the arc plates in sequence. Whenever the heating chamber is docked with the position of the circular slide plate, the heating chamber heats the exhaust gas. When the exhaust gas temperature rises to the required temperature, the temperature sensor drives the stepper motor to drive the rotating column to rotate, so as to push the heated exhaust gas forward to contact the atomized ammonia water, which can avoid the exhaust gas temperature not reaching the set temperature and causing insufficient reaction, affecting the exhaust gas treatment effect.

[0005] In the production process of water-coal slurry additives, the exhaust gas generated contains a large amount of organic compounds, such as volatile organic compounds (VOCs). Since the viscosity of these exhaust gases at room temperature is high, the gas flow is not smooth, making it difficult for low-boiling-point VOCs to effectively separate from the exhaust gas. In addition, the exhaust gas generated in the workshop contains sticky or deliquescent particles, which cannot be effectively captured by the filter material through traditional inertial collision, interception or diffusion mechanisms. To this end, this application proposes a device and method specifically for the treatment of exhaust gas in the water-coal slurry additive production workshop, aiming to solve the above problems, improve the removal efficiency of VOCs and particulate matter, meet environmental protection requirements and improve the working environment. Summary of the invention

[0006] The purpose of the present application is to provide an exhaust gas treatment device and method for a water-coal slurry additive production workshop. This invention optimizes the exhaust gas treatment process to ensure that even sticky or deliquescent particles can be effectively captured, while promoting the efficient separation and removal of low-boiling point VOCs.

[0007] To achieve the above object, the present application provides the following technical solution: An exhaust gas treatment device for a water slurry additive production workshop, including an air outlet pipe and two adsorption chambers connected in series through the air outlet pipe. Adsorption mechanisms for adsorbing particulate matter in the additive exhaust gas are provided at the bottoms of the two adsorption chambers. An air inlet pipe is commonly connected to the upper parts of the two adsorption mechanisms. One end of the air inlet pipe is connected to a heating mechanism for heating the exhaust gas, and a gas delivery mechanism is provided at one end of the heating mechanism, and a burner is arranged inside the gas delivery mechanism; The adsorption mechanism includes a separation component, and an adsorption component for spraying steam to adsorb particulate matter in the exhaust gas is arranged inside the separation component.

[0008] Among them, the heating mechanism includes a connecting cover and a number of outer air pipes and conduits distributed in an annular array. A support frame is arranged on the inner wall of the outer air pipe, and the outer air pipe is fixedly sleeved outside the conduit through the support frame.

[0009] Among them, a number of leakage holes are formed on the outer surface of the conduit, a number of strip holes are formed on the outer surface of the outer air pipe, a flat air pipe is arranged at one end of the conduit, and the connecting cover is fixedly connected to the air inlet pipe.

[0010] Among them, the gas delivery mechanism includes a second annular pipe. A tapered pipe is arranged inside the second annular pipe, a burner is installed inside the tapered pipe, a ring piece is installed at one end of the tapered pipe, and a number of blades distributed in an annular array are arranged on one side of the ring piece.

[0011] Among them, the second annular pipe is fixedly installed on one side of the connecting cover, and the ring piece is installed inside the connecting cover. An exhaust gas pipe is arranged on the outer surface of the second annular pipe.

[0012] Among them, the outer air pipes are distributed in an annular array and installed inside the ring piece, and the tapered pipe is in the shape of a circular flared opening.

[0013] Among them, the separation component includes a connecting pipe and an inner cover cylinder. The connecting pipe is installed at the bottom of the outer surface of the air inlet pipe. An outer cover cylinder is arranged at the bottom of the connecting pipe. A guide air pipe is arranged at the bottom of the outer cover cylinder, and the guide air pipe is fixedly connected to the adsorption chamber. The inner cover cylinder is located inside the outer cover cylinder, and a number of rotating blades distributed in an annular array are arranged between the inner cover cylinder and the outer cover cylinder, and the rotating blades are located at the bottom of the inner cavity of the outer cover cylinder.

[0014] Among them, a number of inner rotating blades are arranged at the bottom of the inner wall of the inner cover cylinder. A cone is commonly arranged at the central position of the number of inner rotating blades, and the cone is in a conical shape. A number of installation holes distributed in an annular array are formed on the upper part of the outer surface of the inner cover cylinder, and a number of leakage holes are formed on the outer surface of the inner cover cylinder.

[0015] Among them, the adsorption assembly includes an annular gas pipe. The outer surface of the annular gas pipe is communicated with a steam pipe. One end of the steam pipe penetrates through the outer cover cylinder and is connected to a steam engine. Several communication pipes are arranged at the upper end of the annular gas pipe and are distributed in an annular array. The upper ends of the several communication pipes are jointly connected to a first annular pipe, and exhaust heads are arranged on the inner walls of the first annular pipes. Several exhaust heads are installed inside the installation holes. Several exhaust pipes are arranged at the bottom of the annular gas pipe and are distributed in an annular array.

[0016] The present invention provides a use method of a tail gas treatment device for a water coal slurry additive production workshop. The specific use method is as follows: Step 1: Send the tail gas in the water coal slurry additive production workshop into the temperature-raising mechanism through the air supply mechanism, and then use a burner to perform temperature-raising treatment on the waste gas inside the temperature-raising mechanism to improve the removal efficiency of volatile organic compounds by raising the temperature. Step 2: The waste gas is sent into the adsorption mechanism through the intake pipe. The adsorption assembly arranged inside the adsorption mechanism increases the adsorption effect of the waste gas through high-temperature steam, and the adsorption assembly cooperates with the separation assembly to increase the gas flow rate. The adsorption assembly regulates the humidity of the waste gas so that volatile organic compounds are more easily captured by the adsorbent. Step 3: After the waste gas is sent into the adsorption chamber, the pollutants in the waste gas are captured by the filter plate inside the adsorption chamber. Finally, the waste gas is discharged through the outlet pipe. By using the burner and the temperature-raising mechanism to perform temperature-raising treatment on the tail gas, the VOCs in the waste gas can be activated, making it easier for them to react with the adsorbent and improving the removal efficiency of volatile organic compounds. High temperature helps to break the physical bondage between VOCs molecules, increasing their reaction activity and diffusion rate, thereby improving the adsorption and removal efficiency of the waste gas in the subsequent adsorption chamber. Using high-temperature steam to further heat the waste gas in the adsorption mechanism can not only adjust the humidity of the waste gas, but also promote the conversion of some difficult-to-adsorb or low-boiling-point VOCs components into forms that are more easily adsorbed, thereby enhancing the adsorption capacity of the adsorption assembly.

[0017] In summary, the technical effects and advantages of the present invention are as follows: 1. In the present invention, the burner directly burns and raises the temperature of the waste gas inside the communication cover, which can quickly heat the waste gas to a temperature range suitable for the decomposition or conversion of VOCs. The high temperature makes the VOCs in the waste gas more active, and some low-boiling-point VOCs can even directly transform from a gaseous state into forms that are more easily captured, such as liquid or solid particles, so that they are more easily captured by the subsequent adsorption or filtration device. After the combustion and temperature-raising treatment, more VOCs can be separated from the waste gas. And the arranged blades help to guide the waste gas inside the second annular pipe to flow smoothly into the temperature-raising mechanism, ensuring the uniform distribution of the waste gas and full contact with the heating source, avoiding the problem of partial areas not being fully heated due to uneven gas flow rate, and improving the overall treatment efficiency.

[0018] 2. In the present invention, steam is fed into the first annular pipe through the annular gas pipe and the connecting pipe, ensuring that the steam can be evenly distributed in the exhaust gas flow path, thereby maximizing the contact area between the steam and the exhaust gas. The design of the exhaust head enables the steam to be ejected more finely and evenly, increasing the effective contact opportunity between the steam and the particulate matter and other pollutants in the exhaust gas. Moreover, the steam contacts the exhaust gas inside the inner shroud and adsorbs the particulate matter. The high-temperature steam not only adjusts the humidity of the exhaust gas but also effectively captures the particulate matter and other pollutants that are soluble in water or wrapped by the steam in the exhaust gas. Through the design of the inner rotating blade and the rotating blade, not only can the flow rate of the exhaust gas be accelerated and the residence time be reduced, but also the exhaust gas can be more evenly distributed throughout the treatment space. The design from the annular gas pipe to the first annular pipe and then to the exhaust head, as well as the design that directly acts on the rotating blade through the exhaust pipe, forms a multi-level purification mechanism, increasing the effective contact opportunity between the steam and the particulate matter and other pollutants in the exhaust gas.

[0019] 3. The present invention is arranged such that the exhaust gas is fed into the interior of the outer shroud through the connecting pipe, ensuring that the exhaust gas can smoothly transition from the intake pipe to the area where the adsorption assembly is located, reducing the pressure loss and efficiency reduction caused by poor gas flow. When the exhaust gas passes through the adsorption assembly, it is treated with high-temperature steam, promoting the conversion of some low-boiling-point or difficult-to-adsorb volatile organic compound components into forms that are more easily adsorbed, improving the capture ability of the adsorption chamber for particulate matter and VOCs in the exhaust gas. Moreover, the cooperation of the inner rotating blade and the rotating blade accelerates the flow of the exhaust gas through rotation. The inner rotating blade can increase the speed of the steam inside the inner shroud, while the rotating blade further assists the exhaust gas to quickly pass through the adsorption assembly. The synergistic effect of the two not only increases the flow rate of the exhaust gas but also ensures the even distribution of the exhaust gas.

[0020] 4. The flame ejected from the conical pipe provided in the present invention is distributed in a cluster shape, ensuring that the heat can be more evenly distributed inside the connecting cover, thereby improving the temperature uniformity in the entire heating area and avoiding problems such as local overheating or insufficient heating. The outer gas pipe is arranged around the flame, which not only helps to form a stable combustion environment but also can cool the external pipe through the flow of the exhaust gas, preventing damage to the equipment caused by high temperature. The design of the leakage holes and the slotted holes allows part of the exhaust gas to be discharged from the outer gas pipe and the conduit. The exhaust gas acts as a barrier to effectively isolate the direct contact between the flame and the outer gas pipe and other components, reducing the risk of equipment burnout. At the same time, it also helps to adjust the temperature difference inside and outside. The exhaust gas inside the conduit is precisely sprayed into the connecting cover through the flat gas pipe, further mixing the exhaust gas and the flame, improving the combustion efficiency, and ensuring that harmful components such as VOCs are fully decomposed at high temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a first - perspective three - dimensional structural schematic diagram of the tail gas treatment device in the water - coal slurry additive production workshop; Figure 2 It is a second - perspective three - dimensional structural schematic diagram of the tail gas treatment device in the water - coal slurry additive production workshop; Figure 3 It is a partial three - dimensional connection structure diagram of the tail gas treatment device in the water - coal slurry additive production workshop; Figure 4 It is a three - dimensional connection structure schematic diagram of the adsorption mechanism; Figure 5 It is a three - dimensional connection structure sectional view of the adsorption mechanism; Figure 6 It is a three - dimensional connection structure schematic diagram of the separation component; Figure 7 It is a three - dimensional connection structure sectional view of the separation component; Figure 8 It is a three - dimensional connection structure schematic diagram of the separation component and the adsorption component; Figure 9 It is a three - dimensional connection structure schematic diagram of the adsorption component; Figure 10 It is a three - dimensional connection structure schematic diagram of the air - supply mechanism; Figure 11 It is a three - dimensional connection structure sectional view of the air - supply mechanism; Figure 12 It is a three - dimensional connection structure sectional view of the air - supply mechanism and the temperature - raising mechanism; Figure 13 It is a three - dimensional connection structure schematic diagram of the connecting cover and the air - supply mechanism; Figure 14 It is a three - dimensional connection structure schematic diagram of the temperature - raising mechanism; Figure 15 It is a three - dimensional connection structure schematic diagram of the outer air pipe and the conduit; Figure 16 It is a three - dimensional connection structure schematic diagram of the conduit.

[0023] In the figure: 1. Air outlet pipe; 2. Adsorption chamber; 3. Air inlet pipe; 4. Adsorption mechanism; 41. Separation component; 411. Connecting pipe; 412. Outer cover cylinder; 413. Inner cover cylinder; 414. Mounting hole; 415. Leak hole; 416. Rotating blade; 417. Air guide pipe; 418. Inner rotating blade; 419. Cone; 42. Adsorption component; 421. Steam pipe; 422. Annular air pipe; 423. Connecting pipe; 424. First annular pipe; 425. Exhaust head; 426. Exhaust pipe; 5. Heating mechanism; 51. Connecting cover; 52. Outer air pipe; 53. Flat air pipe; 54. Slot; 55. Duct; 56. Leakage air hole; 6. Burner; 7. Air supply mechanism; 71. Waste gas pipe; 72. Second annular pipe; 73. Conical pipe; 74. Blade; 75. Annular piece. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Refer to Figures 1 to 16 A tail gas treatment device for a water coal slurry additive production workshop shown in the figure includes an air outlet pipe 1 and two adsorption chambers 2 connected in series through the air outlet pipe 1. Adsorption mechanisms 4 for adsorbing particulate matter in the additive waste gas are provided at the bottoms of the two adsorption chambers 2. An air inlet pipe 3 is commonly connected to the upper parts of the two adsorption mechanisms 4. One end of the air inlet pipe 3 is connected to a heating mechanism 5 for heating and treating the waste gas. One end of the heating mechanism 5 is provided with an air supply mechanism 7, and a burner 6 is arranged inside the air supply mechanism 7; The adsorption mechanism 4 includes a separation component 41, and an adsorption component 42 for spraying steam to adsorb particulate matter in the waste gas is arranged inside the separation component 41.

[0026] It should be noted that the tail gas in the water coal slurry additive production workshop is sent into the heating mechanism 5 through the air supply mechanism 7, and then the waste gas inside the heating mechanism 5 is heated and treated by the burner 6 to improve the removal efficiency of volatile organic compounds by heating; The waste gas is sent into the adsorption mechanism 4 through the air inlet pipe 3. The adsorption component 42 arranged inside the adsorption mechanism 4 increases the adsorption effect of the waste gas through high-temperature steam, and the adsorption component 42 cooperates with the separation component 41 to increase the gas flow rate. The humidity of the waste gas is regulated by the adsorption component 42 so that volatile organic compounds are more easily captured by the adsorbent; After the waste gas is sent into the adsorption chamber 2, the pollutants in the waste gas are captured by the filter plate inside the adsorption chamber 2, and finally the waste gas is discharged through the air outlet pipe 1.

[0027] Among them, the tail gas is heated by the burner 6 and the heating mechanism 5, which can activate the VOCs in the waste gas, making it easier to react with the adsorbent and improving the removal efficiency of volatile organic compounds. High temperature helps to break the physical bond between VOCs molecules, increasing their reaction activity and diffusion rate, thereby improving the adsorption and removal efficiency of the waste gas in the subsequent adsorption chamber 2. Using high-temperature steam to further heat the waste gas in the adsorption mechanism 4 can not only adjust the humidity of the waste gas, but also promote the conversion of some difficult-to-adsorb or low-boiling-point VOCs components into forms that are more easily adsorbed, thus enhancing the adsorption capacity of the adsorption component 42.

[0028] Embodiment 2: Based on the air supply mechanism 7 and the heating mechanism 5 proposed in Embodiment 1, this embodiment provides a further technical solution for the air supply mechanism 7 and the heating mechanism 5.

[0029] The air supply mechanism 7 includes a second annular pipe 72. A taper pipe 73 is arranged inside the second annular pipe 72. A burner 6 is installed inside the taper pipe 73. One end of the taper pipe 73 is provided with an annular plate 75, and a plurality of blades 74 are arranged on one side of the annular plate 75 in an annular array.

[0030] The second annular pipe 72 is fixedly installed on one side of the communication cover 51, and the annular plate 75 is installed inside the communication cover 51. An exhaust pipe 71 is arranged on the outer surface of the second annular pipe 72.

[0031] The outer air pipes 52 are arranged in an annular array inside the annular plate 75, and the taper pipe 73 is in the shape of a circular flared opening.

[0032] It should be noted that the tail gas from the water coal slurry additive production workshop is sent into the exhaust pipe 71 through a fan. The waste gas is sent into the inside of the second annular pipe 72 through the exhaust pipe 71. The arranged blades 74 guide the waste gas inside the second annular pipe 72 into the heating mechanism 5. And a burner 6 is arranged inside the taper pipe 73. The burner 6 burns and heats the waste gas inside the communication cover 51 by spraying flames. Heating the waste gas can make the volatile organic compounds in it more active. Some low-boiling-point VOCs are directly converted from a gaseous state into forms that are more easily captured, prompting more VOCs to be directly separated from the waste gas through combustion. Moreover, because the arranged taper pipe 73 is inside the second annular pipe 72, when the taper pipe 73 is heated, it can preheat the waste gas inside the second annular pipe 72.

[0033] Among them, when the burner 6 sprays flames through the taper pipe 73 to heat the waste gas, the heating of the taper pipe 73 also preheats the waste gas inside the second annular pipe 72. This not only increases the initial temperature of the waste gas before entering the heating mechanism 5, reduces the energy consumption required for subsequent heating, but also makes some low-boiling-point VOCs in the waste gas become more active before entering the formal heating treatment, which is beneficial for more thorough subsequent treatment.

[0034] And by directly burning and heating the waste gas inside the connecting cover 51 through the burner 6, the waste gas can be quickly heated to the temperature range suitable for VOCs decomposition or conversion. The high temperature makes the VOCs in the waste gas more active, and some low-boiling VOCs can even directly transform from gaseous state into forms that are easier to capture, such as liquid or solid particles, so that they are more easily captured by subsequent adsorption or filtration devices. After the combustion and heating treatment, more VOCs can be separated from the waste gas.

[0035] Moreover, the arranged blades 74 help to guide the waste gas inside the second annular pipe 72 to smoothly flow into the heating mechanism 5, ensuring the uniform distribution of the waste gas and sufficient contact with the heat source, avoiding the problem of insufficient heating in some areas caused by uneven gas flow rate, and improving the overall treatment efficiency.

[0036] The heating mechanism 5 includes a connecting cover 51 and a plurality of outer air pipes 52 and conduits 55 distributed in an annular array. The inner wall of the outer air pipe 52 is provided with a support frame, and the outer air pipe 52 is fixedly sleeved outside the conduit 55 through the support frame.

[0037] A plurality of leakage holes 56 are formed on the outer surface of the conduit 55, a plurality of strip holes 54 are formed on the outer surface of the outer air pipe 52, one end of the conduit 55 is provided with a flat air pipe 53, and the connecting cover 51 is fixedly connected with the intake pipe 3.

[0038] It should be noted that the flame ejected from the conical pipe 73 is ejected in a cluster shape, making the outer air pipe 52 Figure 14 surround the flame in the shape as shown. Moreover, the waste gas guided by the blade 74 will be discharged through the conduit 55 and the outer air pipe 52. The arranged leakage holes 56 and strip holes 54 are both used to discharge part of the waste gas inside the outer air pipe 52 and the conduit 55. The waste gas discharged through the strip holes 54 and the leakage holes 56 is used to isolate the direct combustion of the outer air pipe 52 by the flame, while the waste gas inside the conduit 55 will be ejected into the inside of the connecting cover 51 through the flat air pipe 53. The waste gas inside the connecting cover 51 is sent into the intake pipe 3 after combustion.

[0039] Among them, the flame ejected from the conical pipe 73 is distributed in a cluster shape, which can ensure that the heat is more evenly distributed inside the connecting cover 51, thereby improving the temperature uniformity in the entire heating area and avoiding the problems of local overheating or insufficient heating. The outer air pipe 52 is arranged around the flame, which not only helps to form a stable combustion environment, but also can play a cooling role on the external pipeline through the waste gas flow, preventing high temperature from damaging the equipment.

[0040] The design of the air leakage holes 56 and the strip holes 54 allows part of the waste gas to be discharged from the outer air pipe 52 and the conduit 55. The waste gas acts as a barrier to effectively isolate the flame from directly contacting the outer air pipe 52 and other components, reducing the risk of equipment burnout. At the same time, it also helps to regulate the temperature difference between the inside and outside. The waste gas inside the conduit 55 is precisely sprayed into the communication cover 51 through the flat air pipe 53, further mixing the waste gas and the flame, improving the combustion efficiency, and ensuring that harmful components such as VOCs are fully decomposed at high temperatures.

[0041] Embodiment 3. The adsorption mechanism 4 proposed according to Embodiment 1. In this embodiment, further technical solutions for the separation component 41 and the adsorption component 42 are provided.

[0042] The separation component 41 includes a connecting pipe 411 and an inner cover cylinder 413. The connecting pipe 411 is installed at the bottom of the outer surface of the intake pipe 3. The bottom of the connecting pipe 411 is provided with an outer cover cylinder 412. The bottom of the outer cover cylinder 412 is provided with a guide pipe 417. The guide pipe 417 is fixedly connected to the adsorption chamber 2. The inner cover cylinder 413 is located inside the outer cover cylinder 412, and a plurality of rotating blades 416 distributed in a circular array are arranged between the inner cover cylinder 413 and the outer cover cylinder 412, and the rotating blades 416 are located at the bottom of the inner cavity of the outer cover cylinder 412.

[0043] The bottom of the inner wall of the inner cover cylinder 413 is provided with a plurality of inner rotating blades 418 distributed in a circular array. A cone 419 is commonly arranged at the central position of the plurality of inner rotating blades 418, and the cone 419 is in a conical shape. A plurality of mounting holes 414 distributed in a circular array are formed in the upper part of the outer surface of the inner cover cylinder 413, and a plurality of leakage holes 415 are formed in the outer surface of the inner cover cylinder 413.

[0044] It should be noted that the waste gas is sent into the inside of the connecting pipe 411 through the intake pipe 3, the waste gas is sent into the inside of the outer cover cylinder 412 through the connecting pipe 411, the particulate matter in the waste gas is adsorbed after being treated by the steam of the adsorption component 42, and after being pushed by the adsorption component 42, the waste gas will be quickly sent into the inside of the guide pipe 417 through the guidance of the inner rotating blades 418 and the rotating blades 416. The waste gas enters the inside of the adsorption chamber 2 through the guide pipe 417. Since the provided outer cover cylinder 412 is sleeved outside the inner cover cylinder 413, the steam inside the inner cover cylinder 413 is accelerated by the inner rotating blades 418, and the provided rotating blades 416 cooperate with the adsorption component 42 to accelerate the waste gas again.

[0045] Among them, the waste gas is sent into the inside of the outer cover cylinder 412 through the connecting pipe 411, ensuring that the waste gas can smoothly transition from the intake pipe 3 to the area where the adsorption component is located, reducing the pressure loss and efficiency reduction caused by poor gas flow.

[0046] When the waste gas passes through the adsorption component, high-temperature steam treatment is used to promote the conversion of some volatile organic compound components with low boiling points or difficult to adsorb into forms that are easier to adsorb, improving the capture ability of the adsorption chamber 2 for particulate matter and VOCs in the waste gas.

[0047] Moreover, the cooperation between the inner rotating blade 418 and the rotating blade 416 accelerates the flow of the waste gas through rotation. The inner rotating blade 418 can increase the speed of the steam inside the inner cover cylinder 413, while the rotating blade 416 further assists the waste gas to quickly pass through the adsorption component 42. The synergistic effect of the two not only increases the flow rate of the waste gas but also ensures the uniform distribution of the waste gas.

[0048] The adsorption component 42 includes an annular gas pipe 422. The outer surface of the annular gas pipe 422 is connected to a steam pipe 421. One end of the steam pipe 421 penetrates through the outer cover cylinder 412 and is connected to a steam engine. The upper end of the annular gas pipe 422 is provided with a plurality of communication pipes 423 distributed in an annular array. The upper ends of the plurality of communication pipes 423 are jointly connected to a first annular pipe 424, and the inner walls of the first annular pipe 424 are all provided with exhaust nozzles 425. A plurality of exhaust nozzles 425 are all installed inside the installation holes 414. The bottom of the annular gas pipe 422 is provided with a plurality of exhaust pipes 426 distributed in an annular array.

[0049] It should be noted that the waste gas is sent into the interiors of the outer cover cylinder 412 and the inner cover cylinder 413 through the connection pipe 411, while the steam is sent into the interior of the annular gas pipe 422 through the steam pipe 421, and then sent into the interior of the first annular pipe 424 through the communication pipes 423. The steam inside the first annular pipe 424 is ejected through the exhaust nozzles 425. The steam ejected through the exhaust nozzles 425 contacts the waste gas inside the inner cover cylinder 413 and adsorbs the particulate matter in the waste gas. Then the waste gas is guided and accelerated by the inner rotating blade 418 and discharged; Part of the steam inside the annular gas pipe 422 will be ejected through the exhaust pipes 426. The steam ejected through the exhaust pipes 426 is directly sprayed onto the rotating blade 416, then contacts the waste gas between the outer cover cylinder 412 and the inner cover cylinder 413, and then is guided and accelerated by the rotating blade 416 and sent into the interior of the guide pipe 417.

[0050] Among them, the steam is sent into the first annular pipe 424 through the annular gas pipe 422 and the communication pipes 423, ensuring that the steam can be evenly distributed in the waste gas flow path, thereby maximizing the contact area between the steam and the waste gas. The design of the exhaust nozzles 425 enables the steam to be ejected more finely and evenly, increasing the effective contact opportunities between the steam and the particulate matter and other pollutants in the waste gas.

[0051] Moreover, the steam contacts the exhaust gas inside the inner cylinder 413 and adsorbs particulate matter. The high-temperature steam not only adjusts the humidity of the exhaust gas but also effectively captures the particulate matter and other pollutants soluble in water or wrapped by the steam in the exhaust gas. Through the design of the inner rotating blade 418 and the rotating blade 416, not only can the flow rate of the exhaust gas be increased and the residence time be reduced, but also the exhaust gas can be more evenly distributed throughout the treatment space. From the annular gas pipe 422 to the first annular pipe 424 and then to the exhaust head 425, and the design of directly acting on the rotating blade 416 through the exhaust pipe 426 forms a multi-level purification mechanism, increasing the effective contact opportunity between the steam and the particulate matter and other pollutants in the exhaust gas.

[0052] The present invention also provides a method for using the tail gas treatment device of a water coal slurry additive production workshop. The specific usage method is as follows: Step 1: Send the tail gas in the water coal slurry additive production workshop into the heating mechanism 5 through the air supply mechanism 7, and then heat the exhaust gas inside the heating mechanism 5 through the burner 6 to improve the removal efficiency of volatile organic compounds by heating. Step 2: The exhaust gas is sent into the adsorption mechanism 4 through the intake pipe 3. The adsorption component 42 arranged inside the adsorption mechanism 4 increases the adsorption effect of the exhaust gas through high-temperature steam, and the adsorption component 42 cooperates with the separation component 41 to increase the gas flow rate. The humidity of the exhaust gas is regulated by the adsorption component 42, making it easier for volatile organic compounds to be captured by the adsorbent. Step 3: After the exhaust gas is sent into the adsorption chamber 2, the pollutants in the exhaust gas are captured by the filter plate inside the adsorption chamber 2. Finally, the exhaust gas is discharged through the outlet pipe 1. By heating the tail gas through the burner 6 and the heating mechanism 5, the VOCs in the exhaust gas can be activated, making it easier for them to react with the adsorbent and improving the removal efficiency of volatile organic compounds. High temperature helps to break the physical binding between VOCs molecules, increasing their reaction activity and diffusion rate, thereby improving the adsorption and removal efficiency of the exhaust gas in the subsequent adsorption chamber 2. Using high-temperature steam to further heat the exhaust gas in the adsorption mechanism 4 can not only adjust the humidity of the exhaust gas but also promote the conversion of some difficult-to-adsorb or low-boiling-point VOCs components into forms that are easier to adsorb, thereby enhancing the adsorption capacity of the adsorption component 42.

[0053] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tail gas treatment device for a coal water slurry additive production workshop, comprising an outlet pipe (1) and two adsorption chambers (2) connected in series through the outlet pipe (1), characterized in that: The bottom of each of the two adsorption chambers (2) is provided with an adsorption mechanism (4) for adsorbing particulate matter in the exhaust gas of the additive, the upper parts of the two adsorption mechanisms (4) are commonly connected to an air intake pipe (3), one end of the air intake pipe (3) is connected to a heating mechanism (5) for heating the exhaust gas, one end of the heating mechanism (5) is provided with an air supply mechanism (7), and a burner (6) is provided inside the air supply mechanism (7); The adsorption mechanism (4) comprises a separation component (41), wherein an adsorption component (42) for spraying steam to adsorb particulate matter in the exhaust gas is arranged inside the separation component (41).

2. The tail gas treatment device for a coal water slurry additive production workshop according to claim 1, characterized in that: The temperature raising mechanism (5) comprises a connecting cover (51) and a plurality of external air pipes (52) and a conduit (55) distributed in a ring array, wherein a support frame is provided on the inner wall of the external air pipe (52), and the external air pipe (52) is fixedly sleeved on the outside of the conduit (55) via the support frame.

3. The tail gas treatment device for a coal water slurry additive production workshop according to claim 2, characterized in that: The outer surface of the conduit (55) is provided with a plurality of air leakage holes (56), the outer surface of the outer air pipe (52) is provided with a plurality of strip holes (54), a flat air pipe (53) is provided at one end of the conduit (55), and the connecting cover (51) is fixedly connected to the air inlet pipe (3).

4. The tail gas treatment device for a coal water slurry additive production workshop according to claim 3, characterized in that: The air supply mechanism (7) comprises a second annular tube (72), a conical tube (73) is arranged inside the second annular tube (72), a burner (6) is installed inside the conical tube (73), an annular sheet (75) is installed at one end of the conical tube (73), and a plurality of blades (74) distributed in an annular array are arranged on one side of the annular sheet (75).

5. The tail gas treatment device for a coal water slurry additive production workshop according to claim 4, characterized in that: The second annular pipe (72) is fixedly mounted on one side of the connecting cover (51), and the annular sheet (75) is mounted inside the connecting cover (51). An exhaust pipe (71) is provided on the outer surface of the second annular pipe (72).

6. The tail gas treatment device for a coal water slurry additive production workshop according to claim 5, characterized in that: The outer air pipes (52) are installed in a circular array inside the ring sheet (75), and the cone pipe (73) is in a circular bell-mouth shape.

7. The tail gas treatment device for a coal water slurry additive production workshop according to claim 1, characterized in that: The separation assembly (41) comprises a connecting tube (411) and an inner cover tube (413); the connecting tube (411) is installed at the bottom of the outer surface of the air intake pipe (3); an outer cover tube (412) is arranged at the bottom of the connecting tube (411); an air guide tube (417) is arranged at the bottom of the outer cover tube (412); the air guide tube (417) is fixedly connected to the adsorption cabin (2); the inner cover tube (413) is located inside the outer cover tube (412); a plurality of rotating blades (416) distributed in a ring array are arranged between the inner cover tube (413) and the outer cover tube (412); and the rotating blades (416) are located at the bottom of the inner cavity of the outer cover tube (412).

8. The tail gas treatment device for a coal water slurry additive production workshop according to claim 7, characterized in that: The bottom of the inner wall of the inner cover tube (413) is provided with a plurality of inner rotating blades (418) distributed in a ring array, a cone (419) is commonly provided at the center of the plurality of inner rotating blades (418), and the cone (419) is in a conical shape, a plurality of mounting holes (414) distributed in a ring array are provided on the upper portion of the outer surface of the inner cover tube (413), and a plurality of leakage holes (415) are provided on the outer surface of the inner cover tube (413).

9. The tail gas treatment device for a coal water slurry additive production workshop according to claim 8, characterized in that: The adsorption assembly (42) comprises an annular air pipe (422), the outer surface of the annular air pipe (422) being connected to a steam pipe (421), one end of the steam pipe (421) passing through an outer cover tube (412) and being connected to a steam engine, a plurality of connecting pipes (423) distributed in an annular array being arranged at the upper end of the annular air pipe (422), the upper ends of the plurality of connecting pipes (423) being commonly connected to a first annular pipe (424), and exhaust headers (425) being arranged on the inner wall of the first annular pipe (424), the plurality of exhaust headers (425) being installed inside the installation hole (414), and a plurality of exhaust pipes (426) distributed in an annular array being arranged at the bottom of the annular air pipe (422).

10. A method for using the tail gas treatment device of a coal water slurry additive production workshop according to claims 1-9, characterized in that: The specific usage is as follows: Step 1: The exhaust gas in the water-coal slurry additive production workshop is sent into the heating mechanism (5) through the air supply mechanism (7), and then the exhaust gas inside the heating mechanism (5) is heated by the burner (6), so as to improve the removal efficiency of volatile organic compounds by heating; Step 2: the exhaust gas is sent into the adsorption mechanism (4) through the air inlet pipe (3); the adsorption component (42) arranged inside the adsorption mechanism (4) increases the adsorption effect of the exhaust gas through high-temperature steam, and the adsorption component (42) cooperates with the separation component (41) to increase the gas flow rate, and the exhaust gas humidity is regulated by the adsorption component (42) so that the volatile organic compounds are more easily captured by the adsorbent; Step 3: After the exhaust gas is sent into the adsorption chamber (2), the pollutants in the exhaust gas are captured by the filter plate inside the adsorption chamber (2), and finally the exhaust gas is discharged through the exhaust pipe (1).

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