A tail gas treatment device and method for a coal-water slurry additive production workshop

Abstract

The present invention discloses an exhaust gas treatment device and method for a water-coal slurry additive production workshop, which relates to the field of waste gas treatment technology. The device comprises an exhaust pipe and two adsorption cabins connected in series through the exhaust pipe. The bottoms of the two adsorption cabins are each provided with an adsorption mechanism for adsorbing particulate matter in the additive exhaust gas. The upper parts of the two adsorption mechanisms are commonly connected to an air inlet pipe, and one end of the air inlet pipe is connected to a heating mechanism for heating the exhaust gas. In the present invention, the exhaust gas inside the connecting hood is directly burned and heated by a burner, which can quickly heat the exhaust gas to a temperature range suitable for the decomposition or conversion of VOCs. The high temperature makes the VOCs in the exhaust gas more active, and some low-boiling-point VOCs can even be directly converted from a gaseous state to a form that is more easily captured, such as liquid or solid particles, so that they are more easily captured by subsequent adsorption or filtering devices. After the combustion and heating treatment, more VOCs can be separated from the exhaust gas.

Description

Technical Field

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

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

[0003] For example, publication number CN118217737A, titled "A Flue Gas Treatment Device," belongs to the field of display panel production technology. This invention can break up particles such as boron oxide crystals, prevent equipment clogging, and improve flue gas treatment efficiency, facilitating 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 set in this invention can be used to push the exhaust gas in batches, and the distributed heating chambers pass through the position of the arc plate in turn. 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 causes 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] During the production process of coal-water slurry additives, the exhaust gas generated contains a large amount of organic compounds, such as volatile organic compounds (VOCs). Due to the high viscosity of these exhaust gases at room temperature, the gas flow is poor, making it difficult for low-boiling-point VOCs to effectively escape from the exhaust gas. In addition, the exhaust gas generated in the workshop contains sticky or deliquescent particles, which cannot be effectively captured by filter materials 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 coal-water slurry additive production workshops, aiming to solve the above-mentioned 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 this 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-mentioned objectives, the present application provides the following technical solutions: an exhaust gas treatment device for a water-coal slurry additive production workshop, comprising an exhaust pipe and two adsorption chambers connected in series via the exhaust pipe, the bottoms of the two adsorption chambers being provided with an adsorption mechanism for adsorbing particulate matter in the exhaust gas of the additive, the upper portions of the two adsorption mechanisms being commonly connected to an air inlet pipe, one end of the air inlet pipe being connected to a heating mechanism for heating the exhaust gas, one end of the heating mechanism being provided with an air supply mechanism, and a burner being provided inside the air supply mechanism;

[0008] The adsorption mechanism comprises a separation component, and an adsorption component for spraying steam to adsorb particulate matter in the exhaust gas is arranged inside the separation component.

[0009] Among them, the heating mechanism includes a connecting cover and several external air pipes and conduits distributed in a circular array. The inner wall of the external air pipe is provided with a support frame, and the external air pipe is fixedly sleeved on the outside of the conduit through the support frame.

[0010] Among them, the outer surface of the catheter is provided with a plurality of air leakage holes, the outer surface of the outer air pipe is provided with a plurality of strip holes, one end of the catheter is provided with a flat air pipe, and the connecting cover is fixedly connected with the air inlet pipe.

[0011] Among them, the air supply mechanism includes a second annular tube, a conical tube is arranged inside the second annular tube, a burner is installed inside the conical tube, an annular plate is installed at one end of the conical tube, and a plurality of blades distributed in an annular array are arranged on one side of the annular plate.

[0012] The second annular pipe is fixedly installed on one side of the connecting cover, and the annular sheet is installed inside the connecting cover. The outer surface of the second annular pipe is provided with an exhaust pipe.

[0013] The outer air pipes are distributed in a circular array and installed inside the ring piece, and the cone pipes are in a circular trumpet shape.

[0014] Among them, the separation component includes a connecting pipe and an inner cover tube. The connecting pipe is installed at the bottom of the outer surface of the air inlet pipe. The bottom of the connecting pipe is provided with an outer cover tube. The bottom of the outer cover tube is provided with an air guide pipe. The air guide pipe is fixedly connected to the adsorption cabin. The inner cover tube is located inside the outer cover tube, and a number of rotary blades distributed in a circular array are provided between the inner cover tube and the outer cover tube, and the rotary blades are located at the bottom of the inner cavity of the outer cover tube.

[0015] Among them, the bottom of the inner wall of the inner cover tube is provided with several inner rotating blades distributed in a circular array, and a cone is commonly provided at the center position of the several inner rotating blades, and the cone is conical in shape. The upper part of the outer surface of the inner cover tube is provided with several mounting holes distributed in a circular array, and the outer surface of the inner cover tube is provided with several leakage holes.

[0016] Among them, the adsorption component includes a ring air pipe, the outer surface of the ring air pipe is connected to the steam pipe, one end of the steam pipe passes through the outer cover tube and is connected to the steam engine, the upper end of the ring air pipe is provided with several connecting pipes distributed in a ring array, the upper ends of several connecting pipes are commonly connected to the first ring pipe, and the inner wall of the first ring pipe is provided with an exhaust head, and several exhaust heads are installed inside the mounting hole, and the bottom of the ring air pipe is provided with several exhaust pipes distributed in a ring array.

[0017] The present invention provides a method for using a tail gas treatment device in a coal water slurry additive production workshop. The specific method of use is as follows:

[0018] Step 1: The exhaust gas in the water-coal slurry additive production workshop is sent into the heating mechanism through the air supply mechanism, and then the exhaust gas inside the heating mechanism is heated by the burner to improve the removal efficiency of volatile organic compounds by heating;

[0019] In step 2, the exhaust gas is fed into the adsorption mechanism through the air inlet pipe. The adsorption component installed inside the adsorption mechanism uses high-temperature steam to increase the adsorption effect of the exhaust gas. The adsorption component and the separation component cooperate to increase the gas flow rate. The adsorption component controls the humidity of the exhaust gas so that volatile organic compounds are more easily captured by the adsorbent.

[0020] Step three: After the exhaust gas is sent into the adsorption cabin, the pollutants in the exhaust gas are captured by the filter plate inside the adsorption cabin, and finally the exhaust gas is discharged through the exhaust pipe. The exhaust gas is heated by the burner and the heating mechanism, which can activate the VOCs in the exhaust gas, making it easier for it to react with the adsorbent, thereby improving the removal efficiency of volatile organic compounds. High temperature helps to break the physical constraints between VOCs molecules, increase their reaction activity and diffusion rate, thereby improving the adsorption and removal efficiency of the exhaust gas in the subsequent adsorption cabin. The use of high-temperature steam in the adsorption mechanism to further heat the exhaust gas can not only adjust the humidity of the exhaust gas, but also promote some difficult-to-adsorb or low-boiling-point VOCs components to be converted into a form that is more easily adsorbed, thereby enhancing the adsorption capacity of the adsorption component.

[0021] In summary, the technical effects and advantages of the present invention are as follows:

[0022] 1. The present invention uses a burner to directly burn and heat the exhaust gas inside the connecting hood, which can quickly heat the exhaust gas to a temperature range suitable for the decomposition or conversion of VOCs. The high temperature makes the VOCs in the exhaust gas more active, and some low-boiling-point VOCs can even be directly converted from the gaseous state into a more easily captured form, such as liquid or solid particles, making them more easily captured by subsequent adsorption or filtration devices. After the combustion and temperature increase process, more VOCs can be separated from the exhaust gas. In addition, the blades provided help guide the exhaust gas inside the second annular tube to flow smoothly into the heating mechanism, ensuring that the exhaust gas is evenly distributed and fully contacts the heating source, avoiding the problem of insufficient heating of some areas due to uneven gas flow rate, and improving the overall processing efficiency.

[0023] 2. In the present invention, steam is fed into the first annular pipe through the annular 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 allows the steam to be ejected more finely and evenly, increasing the effective contact opportunity between the steam and particulate matter and other pollutants in the exhaust gas. In addition, the steam contacts the exhaust gas inside the inner cover tube and adsorbs particulate matter. The high-temperature steam not only regulates the humidity of the exhaust gas, but also effectively captures particulate matter and other pollutants in the exhaust gas that are soluble in water or wrapped in steam. The design of the inner rotor and the rotor not only accelerates the flow speed of the exhaust gas and reduces the residence time, but also makes the exhaust gas more evenly distributed in the entire treatment space. From the annular pipe to the first annular pipe and then to the exhaust head, as well as the design of the exhaust pipe directly acting on the rotor, a multi-level purification mechanism is formed to increase the effective contact opportunity between the steam and particulate matter and other pollutants in the exhaust gas.

[0024] 3. The arrangement of the present invention allows the exhaust gas to be sent into the interior of the outer cover tube through the connecting pipe, ensuring that the exhaust gas can smoothly transition from the air inlet pipe to the area where the adsorption component is located, reducing pressure loss and efficiency reduction caused by poor gas flow. When the exhaust gas passes through the adsorption component, high-temperature steam treatment is used to promote the conversion of some low-boiling point or difficult-to-adsorb volatile organic compound components into a form that is more easily adsorbed, thereby improving the adsorption cabin's ability to capture particulate matter and VOCs in the exhaust gas. Moreover, the cooperation between the inner rotor and the rotor accelerates the flow of exhaust gas through rotation. The inner rotor can increase the speed of the steam inside the inner cover tube, while the rotor further assists the exhaust gas to pass through the adsorption component quickly. The synergistic effect of the two not only increases the flow rate of the exhaust gas, but also ensures that the exhaust gas is evenly distributed.

[0025] 4. The flames ejected from the conical tubes provided in the present invention are distributed in clusters, which can ensure that the heat is more evenly distributed inside the connecting hood, thereby improving the temperature uniformity in the entire heating area and avoiding the problem of local overheating or insufficient heating. The outer air pipe is arranged around the flame, which not only helps to form a stable combustion environment, but also can cool the external pipes through the flow of exhaust gas, preventing high temperature from causing damage to the equipment. The design of the leakage holes and strip holes allows part of the exhaust gas to be discharged from the outer air pipe and the conduit. The exhaust gas acts as a barrier to effectively isolate the flame from direct contact with the outer air pipe and other components, reducing the risk of equipment burnout, and also helps to adjust the temperature difference between the inside and outside. The exhaust gas inside the conduit is accurately sprayed into the connecting hood through the flat air 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

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a first-person perspective schematic diagram of the tail gas treatment device in the coal-water slurry additive production workshop;

[0028] Figure 2 This is a second-perspective three-dimensional structural diagram of the tail gas treatment device in the coal-water slurry additive production workshop;

[0029] Figure 3 This is a partial three-dimensional connection structure diagram of the tail gas treatment device in the coal water slurry additive production workshop;

[0030] Figure 4 Schematic diagram of the three-dimensional connection structure of the adsorption mechanism;

[0031] Figure 5 It is a cross-sectional view of the three-dimensional connection structure of the adsorption mechanism;

[0032] Figure 6 It is a schematic diagram of the three-dimensional connection structure of the separated components;

[0033] Figure 7 A sectional view of the three-dimensional connection structure of the separated components;

[0034] Figure 8 It is a schematic diagram of the three-dimensional connection structure of the separation component and the adsorption component;

[0035] Figure 9 Schematic diagram of the three-dimensional connection structure of the adsorption component;

[0036] Figure 10 Schematic diagram of the three-dimensional connection structure of the air supply mechanism;

[0037] Figure 11 It is a cross-sectional view of the three-dimensional connection structure of the air supply mechanism;

[0038] Figure 12 A cross-sectional view of the three-dimensional connection structure of the air supply mechanism and the heating mechanism;

[0039] Figure 13 It is a schematic diagram of the three-dimensional connection structure of the connecting cover and the air supply mechanism;

[0040] Figure 14 It is a schematic diagram of the three-dimensional connection structure of the heating mechanism;

[0041] Figure 15 Schematic diagram of the three-dimensional connection structure of the external trachea and the catheter;

[0042] Figure 16 Schematic diagram of the three-dimensional connection structure of the catheter.

[0043] In the figure: 1. outlet pipe; 2. adsorption cabin; 3. air inlet pipe; 4. adsorption mechanism; 41. separation component; 411. connecting pipe; 412. outer cover tube; 413. inner cover tube; 414. mounting hole; 415. leakage hole; 416. rotary vane; 417. air guide pipe; 418. inner rotary vane; 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. strip hole; 55. conduit; 56. leakage hole; 6. burner; 7. air supply mechanism; 71. exhaust pipe; 72. second annular pipe; 73. cone pipe; 74. blade; 75. ring piece. DETAILED DESCRIPTION

[0044] 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.

[0045] refer to Figures 1 to 16The exhaust gas treatment device shown in the figure for a water-coal slurry additive production workshop includes an outlet pipe 1 and two adsorption chambers 2 connected in series via the outlet pipe 1. The bottom of each of the two adsorption chambers 2 is provided with an adsorption mechanism 4 for adsorbing particulate matter in the additive exhaust gas. The upper portions of the two adsorption mechanisms 4 are commonly connected to an air inlet pipe 3. One end of the air inlet pipe 3 is connected to a heating mechanism 5 for heating the exhaust gas. An air supply mechanism 7 is provided at one end of the heating mechanism 5, and a burner 6 is provided inside the air supply mechanism 7.

[0046] The adsorption mechanism 4 includes a separation component 41 , and an adsorption component 42 for spraying steam to adsorb particulate matter in the exhaust gas is provided inside the separation component 41 .

[0047] It is worth noting that the exhaust gas in the water-coal slurry additive production workshop is fed 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, thereby improving the removal efficiency of volatile organic compounds.

[0048] The exhaust gas is fed into the adsorption mechanism 4 through the air inlet pipe 3. The adsorption component 42 provided inside the adsorption mechanism 4 increases the adsorption effect of the exhaust gas through high-temperature steam. The adsorption component 42 cooperates with the separation component 41 to increase the gas flow rate. The adsorption component 42 regulates the humidity of the exhaust gas so that volatile organic compounds are more easily captured by the adsorbent.

[0049] After the exhaust gas is sent into the adsorption cabin 2 , the pollutants in the exhaust gas are captured by the filter plate inside the adsorption cabin 2 , and finally the exhaust gas is discharged through the exhaust pipe 1 .

[0050] Among them, the exhaust gas is heated by the burner 6 and the heating mechanism 5, which can activate the VOCs in the exhaust gas, making it easier for it to react with the adsorbent, thereby improving the removal efficiency of volatile organic compounds. High temperature helps to break the physical constraints between VOCs molecules, increase their reaction activity and diffusion rate, thereby improving the adsorption and removal efficiency of the exhaust gas in the subsequent adsorption cabin 2. The use of high-temperature steam in the adsorption mechanism 4 to further heat the exhaust gas can not only adjust the humidity of the exhaust gas, but also promote some difficult-to-adsorb or low-boiling-point VOCs components to be converted into a form that is more easily adsorbed, thereby enhancing the adsorption capacity of the adsorption component 42.

[0051] Embodiment 2: Based on the air supply mechanism 7 and the temperature increasing mechanism 5 proposed in embodiment 1, this embodiment provides a further technical solution for the air supply mechanism 7 and the temperature increasing mechanism 5.

[0052] The air supply mechanism 7 includes a second annular tube 72, a conical tube 73 is provided inside the second annular tube 72, a burner 6 is installed inside the conical tube 73, an annular plate 75 is installed at one end of the conical tube 73, and a plurality of blades 74 distributed in an annular array are provided on one side of the annular plate 75.

[0053] The second annular pipe 72 is fixedly mounted on one side of the connecting cover 51 , and the annular piece 75 is mounted inside the connecting cover 51 . The exhaust pipe 71 is provided on the outer surface of the second annular pipe 72 .

[0054] The outer air pipes 52 are distributed in an annular array and installed inside the ring piece 75, and the cone pipe 73 is in a circular trumpet shape.

[0055] It is worth noting that the exhaust gas from the water-coal slurry additive production workshop is sent into the exhaust pipe 71 through the fan, and the exhaust gas is sent into the interior of the second ring pipe 72 through the exhaust pipe 71, and the blades 74 are provided to guide the exhaust gas inside the second ring pipe 72 into the heating mechanism 5, and a burner 6 is provided inside the conical pipe 73. The burner 6 burns and heats the exhaust gas inside the connecting cover 51 by ejecting flames. Heating the exhaust gas can make the volatile organic compounds therein more active, and some low-boiling-point VOCs are directly converted from the gaseous state into a form that is easier to capture, so that more VOCs can be directly separated from the exhaust gas through combustion. Moreover, because the conical pipe 73 is located inside the second ring pipe 72, when the conical pipe 73 is heated, the exhaust gas inside the second ring pipe 72 can be preheated.

[0056] Among them, when the burner 6 sprays flames through the tapered tube 73 to heat the exhaust gas, the temperature increase of the tapered tube 73 also preheats the exhaust gas in the second ring tube 72, which not only increases the initial temperature of the exhaust gas before entering the heating mechanism 5 and reduces the energy consumption required for subsequent heating, but also makes some low-boiling point VOCs in the exhaust gas become more active before entering the formal heating treatment, which is conducive to more thorough subsequent treatment.

[0057] Furthermore, the exhaust gas inside the connecting hood 51 is directly burned and heated by the burner 6, which can quickly heat the exhaust gas to a temperature range suitable for the decomposition or conversion of VOCs. The high temperature makes the VOCs in the exhaust gas more active, and some low-boiling-point VOCs can even be directly converted from a gaseous state into a form that is easier to capture, such as liquid or solid particles, making it easier to be captured by subsequent adsorption or filtering devices. After the combustion and heating treatment, more VOCs can be separated from the exhaust gas.

[0058] In addition, the blades 74 help guide the exhaust gas inside the second ring tube 72 to flow smoothly into the heating mechanism 5, ensuring that the exhaust gas is evenly distributed and fully contacts the heating source, avoiding the problem of insufficient heating of some areas due to uneven gas flow rate, and improving the overall processing efficiency.

[0059] The heating mechanism 5 includes a connecting cover 51 and a plurality of external air pipes 52 and a conduit 55 distributed in a circular array. The inner wall of the external air pipe 52 is provided with a support frame, and the external air pipe 52 is fixedly sleeved on the outside of the conduit 55 through the support frame.

[0060] 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 .

[0061] It is worth noting that the flame ejected from the cone 73 is ejected in clusters, making the outer air pipe 52 Figure 14 The shape shown surrounds the flame, and the exhaust gas guided by the blades 74 will be discharged through the duct 55 and the outer air pipe 52, and the leakage holes 56 and the strip holes 54 are used to guide the exhaust gas from the inner part of the outer air pipe 52 and the duct 55. The exhaust gas guided through the strip holes 54 and the leakage holes 56 is used to isolate the flame from directly burning the outer air pipe 52, and the exhaust gas inside the duct 55 will be ejected to the inside of the connecting cover 51 through the flat air pipe 53, and the exhaust gas inside the connecting cover 51 is sent into the intake pipe 3 after combustion.

[0062] Among them, the flames ejected from the conical tube 73 are distributed in clusters, 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 gas pipe 52 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 exhaust gas, preventing high temperature from damaging the equipment.

[0063] The design of the leakage holes 56 and the strip holes 54 allows part of the exhaust gas to be discharged from the external air pipe 52 and the duct 55. The exhaust gas acts as a barrier to effectively isolate the flame from directly contacting the external air pipe 52 and other components, reducing the risk of equipment burning. It also helps to adjust the temperature difference between the inside and outside. The exhaust gas inside the duct 55 is accurately sprayed into the connecting cover 51 through the flat air pipe 53, 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.

[0064] Embodiment 3: Based on the adsorption mechanism 4 proposed in embodiment 1, this embodiment provides a further technical solution for the separation component 41 and the adsorption component 42.

[0065] The separation component 41 includes 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 inlet pipe 3. The bottom of the connecting tube 411 is provided with an outer cover tube 412. The bottom of the outer cover tube 412 is provided with an air guide pipe 417. The air guide pipe 417 is fixedly connected to the adsorption cabin 2. The inner cover tube 413 is located inside the outer cover tube 412, and a number of rotor blades 416 distributed in a circular array are provided between the inner cover tube 413 and the outer cover tube 412, and the rotor blades 416 are located at the bottom of the inner cavity of the outer cover tube 412.

[0066] 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 circular array, and a cone 419 is commonly provided at the center position of the plurality of inner rotating blades 418, and the cone 419 is conical in shape. The upper part of the outer surface of the inner cover tube 413 is provided with a plurality of mounting holes 414 distributed in a circular array, and the outer surface of the inner cover tube 413 is provided with a plurality of leakage holes 415.

[0067] It is worth noting that the exhaust gas is sent into the interior of the connecting pipe 411 through the air inlet pipe 3, and the exhaust gas is sent into the interior of the outer cover tube 412 through the connecting pipe 411. The exhaust gas is treated with steam by the adsorption component 42 to adsorb particulate matter in the exhaust gas, and after the exhaust gas is pushed by the adsorption component 42, it will be quickly sent into the interior of the air guide pipe 417 through the guidance of the inner rotor 418 and the rotor 416. The exhaust gas enters the interior of the adsorption cabin 2 through the air guide pipe 417. Since the outer cover tube 412 is arranged on the outside of the inner cover tube 413, the steam inside the inner cover tube 413 is accelerated by the inner rotor 418, and the rotor 416 cooperates with the adsorption component 42 to accelerate the exhaust gas again.

[0068] The exhaust gas is sent into the outer cover tube 412 through the connecting pipe 411, ensuring that the exhaust gas can smoothly transition from the air intake pipe 3 to the area where the adsorption component is located, reducing pressure loss and efficiency reduction caused by poor gas flow.

[0069] When the exhaust gas passes through the adsorption component, high-temperature steam is used for treatment, which causes some volatile organic compound components with low boiling points or difficult to adsorb to be converted into a form that is more easily adsorbed, thereby improving the adsorption cabin 2's ability to capture particulate matter and VOCs in the exhaust gas.

[0070] Moreover, the cooperation between the inner rotary blade 418 and the rotary blade 416 accelerates the flow of exhaust gas through rotation. The inner rotary blade 418 can increase the speed of the steam inside the inner cover tube 413, and the rotary blade 416 further assists the exhaust gas to pass through the adsorption component 42 quickly. The synergistic effect of the two not only increases the flow rate of the exhaust gas, but also ensures the uniform distribution of the exhaust gas.

[0071] The adsorption assembly 42 includes an annular air pipe 422, the outer surface of which is connected to a steam pipe 421, one end of which passes through the outer cover tube 412 and is connected to the steam engine, and the upper end of the annular air pipe 422 is provided with a plurality of connecting pipes 423 distributed in an annular array, the upper ends of the plurality of connecting pipes 423 are commonly connected to a first annular pipe 424, and the inner walls of the first annular pipe 424 are provided with exhaust heads 425, and the plurality of exhaust heads 425 are all installed inside the mounting hole 414, and the bottom of the annular air pipe 422 is provided with a plurality of exhaust pipes 426 distributed in an annular array.

[0072] It is worth noting that the exhaust gas is fed into the interior of the outer cover tube 412 and the inner cover tube 413 through the connecting pipe 411, while the steam is fed into the interior of the annular gas pipe 422 through the steam pipe 421, and then fed into the interior of the first annular pipe 424 through the connecting pipe 423. The steam inside the first annular pipe 424 is ejected through the exhaust header 425. The steam ejected through the exhaust header 425 contacts the exhaust gas inside the inner cover tube 413 and absorbs particulate matter in the exhaust gas. The exhaust gas is then guided by the inner rotating vane 418 for accelerated discharge.

[0073] Part of the steam inside the annular air pipe 422 will be ejected through the exhaust pipe 426. The steam ejected through the exhaust pipe 426 will be directly sprayed onto the rotor blade 416, and then come into contact with the exhaust gas between the outer cover tube 412 and the inner cover tube 413, and then guided and accelerated by the rotor blade 416 to the interior of the air guide pipe 417.

[0074] Among them, the steam is sent into the first ring pipe 424 through the ring pipe 422 and the connecting pipe 423, 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 425 allows the steam to be sprayed out more finely and evenly, increasing the effective contact opportunity between the steam and particulate matter and other pollutants in the exhaust gas.

[0075] In addition, the steam contacts the exhaust gas inside the inner cover tube 413 and absorbs particulate matter. The high-temperature steam not only adjusts the humidity of the exhaust gas, but also effectively captures particulate matter and other pollutants in the exhaust gas that are soluble in water or wrapped in steam. The design of the inner rotor 418 and the rotor 416 can not only accelerate the flow speed of the exhaust gas and reduce the residence time, but also make the exhaust gas more evenly distributed in the entire processing space, from the annular air pipe 422 to the first annular pipe 424 and then to the exhaust head 425, as well as the design of directly acting on the rotor 416 through the exhaust pipe 426, forming a multi-level purification mechanism that increases the effective contact opportunities between steam and particulate matter and other pollutants in the exhaust gas.

[0076] The present invention also provides a method for using a tail gas treatment device in a coal water slurry additive production workshop, and the specific method of use is as follows:

[0077] 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 to improve the removal efficiency of volatile organic compounds by heating;

[0078] Step 2: The exhaust gas is fed into the adsorption mechanism 4 through the air inlet pipe 3. The adsorption component 42 provided inside the adsorption mechanism 4 uses high-temperature steam to increase the adsorption effect of the exhaust gas. The adsorption component 42 cooperates with the separation component 41 to increase the gas flow rate. The adsorption component 42 controls the exhaust gas humidity so that volatile organic compounds are more easily captured by the adsorbent.

[0079] Step 3. After the exhaust gas is sent into the adsorption cabin 2, the pollutants in the exhaust gas are captured by the filter plate inside the adsorption cabin 2. Finally, the exhaust gas is discharged through the exhaust pipe 1. The exhaust gas is heated by the burner 6 and the heating mechanism 5, which can activate the VOCs in the exhaust gas, making it easier for it to react with the adsorbent, thereby improving the removal efficiency of volatile organic compounds. High temperature helps to break the physical constraints between VOCs molecules, increase their reaction activity and diffusion rate, thereby improving the adsorption and removal efficiency of the exhaust gas in the subsequent adsorption cabin 2. The use of high-temperature steam in the adsorption mechanism 4 to further heat the exhaust gas can not only adjust the humidity of the exhaust gas, but also promote some difficult-to-adsorb or low-boiling-point VOCs components to be converted into a form that is more easily adsorbed, thereby enhancing the adsorption capacity of the adsorption component 42.

[0080] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection 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 bottoms of the two adsorption chambers (2) are each provided with an adsorption mechanism (4) for adsorbing particulate matter in the additive exhaust gas, the upper portions 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 provided inside the separation component (41); The separation assembly (41) includes 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 inlet pipe (3), the bottom of the connecting tube (411) is provided with an outer cover tube (412), the bottom of the outer cover tube (412) is provided with an air guide tube (417), 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), and a plurality of rotating blades (416) distributed in an annular array are provided 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); The bottom of the inner wall of the inner cover tube (413) is provided with a plurality of inner rotating blades (418) distributed in an annular 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, the upper portion of the outer surface of the inner cover tube (413) is provided with a plurality of mounting holes (414) distributed in an annular array, and the outer surface of the inner cover tube (413) is provided with a plurality of leakage holes (415); The adsorption assembly (42) includes an annular air pipe (422), the outer surface of the annular air pipe (422) is connected to a steam pipe (421), one end of the steam pipe (421) passes through the outer cover tube (412) and is connected to the steam engine, the upper end of the annular air pipe (422) is provided with a plurality of connecting pipes (423) distributed in an annular array, the upper ends of the plurality of connecting pipes (423) are commonly connected to a first annular pipe (424), and the inner wall of the first annular pipe (424) is provided with an exhaust header (425), and the plurality of exhaust headers (425) are installed inside the mounting hole (414), and the bottom of the annular air pipe (422) is provided with a plurality of exhaust pipes (426) distributed in an annular array.

2. The tail gas treatment device for a coal water slurry additive production workshop according to claim 1, characterized in that: The heating mechanism (5) comprises a connecting cover (51) and a plurality of external air pipes (52) and a conduit (55) distributed in a circular array. The inner wall of the external air pipe (52) is provided with a support frame, and the external air pipe (52) is fixedly sleeved on the outside of the conduit (55) through 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 provided inside the second annular tube (72), a burner (6) is installed inside the conical tube (73), an annular plate (75) is installed at one end of the conical tube (73), and a plurality of blades (74) distributed in an annular array are provided on one side of the annular plate (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 tube (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 tube (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 distributed in an annular array and installed inside the ring piece (75), and the cone pipe (73) is in a circular trumpet shape.

7. A method for using the tail gas treatment device of a coal water slurry additive production workshop according to any one of claims 1 to 5, 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), thereby improving the removal efficiency of volatile organic compounds; Step 2: The exhaust gas is fed into the adsorption mechanism (4) through the air inlet pipe (3), and the adsorption component (42) provided 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 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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