A cracking furnace waste gas treatment device and treatment process thereof

Abstract

The invention discloses a cracking furnace waste gas treatment device and a treatment process thereof, and relates to the technical field of cracking furnace waste gas treatment, including a water washing component, wherein the water washing component includes a grounding sleeve. The invention discloses a cracking furnace waste gas treatment device and a treatment process thereof, wherein when the waste gas is treated, the waste gas is washed with water and then introduced into a packing tube, wherein the packing tube is filled with an adsorbent, and as the waste gas is continuously introduced, the adsorbent at the bottom of the packing tube is consumed, and then the second hydraulic cylinder is adjusted to drive the interception plate to move outward, and during the movement, the annular scraper scrapes off the adsorbent on the interception plate, and the feeding mechanism gradually squeezes the adsorbent into the packing tube through the feeding hopper, and then the upper adsorbent squeezes the adsorbent at the bottom, so that the adsorbent gradually passes through the coarse-hole mesh plate and falls below, thereby completing the replacement of the adsorbent at the bottom, and ensuring that the waste gas is initially introduced into the packing tube, and the adsorbent is efficiently adsorbed and purified by the adsorbent.

Description

Technical Field

[0001] The invention relates to the technical field of cracking furnace waste gas treatment, and in particular to a cracking furnace waste gas treatment device and a treatment process thereof. Background Art

[0002] A cracking furnace refers to a device used to carry out cracking reactions on hydrocarbons. A large amount of waste gas will be generated during the operation of the cracking furnace. Direct discharge of this waste gas will cause air pollution. Therefore, it needs to be collected and treated.

[0003] During use, the existing cracking furnace waste gas treatment device uses adsorption fillers to treat the waste gas. However, the adsorption fillers located at the bottom absorb the waste gas best and have the largest absorption amount when in contact with the waste gas. This will result in the need to frequently replace this part of the adsorption fillers to ensure the adsorption and purification effect of the bottom layer. The existing waste gas treatment device cannot be replaced in time during waste gas treatment, which will result in poor waste gas treatment effect and reduce the use value of the waste gas treatment device. Summary of the invention

[0004] The invention discloses a cracking furnace waste gas treatment device, which aims to solve the problem that the existing cracking furnace waste gas treatment device, during use, uses adsorption fillers to adsorb and treat waste gas, however, the adsorption fillers located at the bottom absorb the waste gas best and have the largest absorption amount when in contact with the waste gas, which will result in the need to frequently replace this part of the adsorption fillers to ensure the adsorption and purification effect of the bottom layer, and the existing waste gas treatment device cannot be replaced in time during waste gas treatment, which will result in a poor waste gas treatment effect.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A cracking furnace waste gas treatment device comprises a water washing component, the water washing component comprises a grounding sleeve, and the outer side wall of the grounding sleeve is fixedly connected to an external connecting ring, the top of the external connecting ring is fixedly connected to support rods at equal distances, the ends of multiple support rods are fixedly connected to the same mounting ring, an adsorption purification component is arranged on the mounting ring, the adsorption purification component comprises a packing tube, and the packing tube is fixedly connected to the inner side wall of the mounting ring, the bottom of the packing tube is fixedly connected to a coarse-hole mesh plate, and the outer side wall of the packing tube near the bottom end is fixedly connected to a sealing ring, and the outer side wall of the sealing ring Two hydraulic cylinders are distributed in a ring, and the output end of each hydraulic cylinder is fixedly connected to an interception plate. Multiple interception plates form a whole circle, and two air holes are opened on the top of each interception plate. The inner wall of the stuffing cylinder located at the center position is fixedly connected to a matching sealing frame, and the interception plate is in contact with the bottom of the matching sealing frame. The outer wall of the sealing ring facing downward is fixedly connected to an annular scraper, and the annular scraper is in contact with the top of the interception plate. A stuffing hole is opened on the top of the stuffing cylinder, and a feeding hopper is fixedly connected to the inside of the stuffing hole, and an exhaust hole is opened on the top of the stuffing cylinder.

[0007] By providing an adsorption purification component, when treating the waste gas, it is washed with water and then introduced into the stuffing tube, in which adsorbent is filled. As the waste gas is continuously introduced, the adsorbent at the bottom of the stuffing tube is consumed, and the second hydraulic cylinder is adjusted to drive the interception plate to move outward. During the movement, the annular scraper scrapes off the adsorbent on the interception plate, and the feeding mechanism gradually squeezes the adsorbent into the stuffing tube through the feeding hopper. The upper adsorbent squeezes the adsorbent at the bottom, so that it gradually passes through the coarse-pore mesh plate and falls below, thereby completing the replacement of the adsorbent at the bottom, ensuring that the waste gas is initially introduced into the stuffing tube, and the adsorbent efficiently adsorbs and purifies it. This method can achieve gradual filling without manual operation, thereby improving the waste gas treatment effect.

[0008] In a preferred solution, a mounting frame is distributed in a ring on the outer wall of the mating sealing frame, and a vibration rod is fixedly connected to the mounting frame. Two vibration transmission frames are fixedly connected to the outer wall of the vibration rod, and transmission rods are fixedly connected to the tops of the two vibration transmission frames at equal distances, and the transmission rods are in contact with the bottom of the coarse-hole mesh plate.

[0009] In a preferred embodiment, a mounting hole is opened on the outer side of the lower half of the filling cylinder, and an annular guide rail is fixedly connected to the inside of the mounting hole, and a rotating ring gear is slidably connected to the inside of the annular guide rail, and the rotating ring gear is fixedly connected to the outer side wall of the filling cylinder at equal distances, and a stirring rod is fixedly connected to the bottom of each rotating rod at equal distances, and a motor base 2 is fixedly connected to the top of the sealing ring, and a driving motor 2 is fixedly connected to the inside of the motor base 2, and the output shaft of the driving motor 2 is fixedly connected to the driving shaft through a coupling, and a driving gear disk is fixedly connected to the outer side wall of the driving shaft, and the driving gear disk and the rotating ring gear are meshed.

[0010] In a preferred embodiment, a directional air intake assembly is provided below the filling cylinder, and the directional air intake assembly includes a material receiving frame, the inner side wall of the material receiving frame is fixedly connected to a mounting sleeve frame, the mounting sleeve frame is fixedly connected to the inner side wall of the matching sealing frame, the top of the material receiving frame is in contact with the bottom of the intercepting plate, the inner side wall of the material receiving frame is fixedly connected to an inclined stacking plate, and an air hole is opened on the inclined stacking plate.

[0011] By providing a directional air intake component, the exhaust gas enters the air collecting frame after being washed with water, and the drive motor 1 is started. The drive motor 1 drives the air collecting frame to rotate 60° at regular intervals, thereby gradually introducing the exhaust gas into various positions in the receiving frame through the docking frame, so that the exhaust gas evenly passes through the air hole 1 and the air hole 2 into the stuffing tube, thereby improving the uniformity of exhaust gas dispersion, thereby improving the exhaust gas purification effect and the utilization rate of the adsorbent inside the stuffing tube.

[0012] In a preferred solution, the inner wall of the installation sleeve is fixedly connected to an internal frame, and the outer wall of the internal frame is annularly distributed with hydraulic cylinders, and the output end of each hydraulic cylinder is fixedly connected to a sealing arc plate. The outer wall of the installation sleeve located below the inclined stacking plate is annularly opened with a feed hole, and the sealing arc plate fits with the feed hole.

[0013] In a preferred solution, the grounding sleeve is fixedly connected to a motor base 1 in the middle, and a driving motor 1 is fixedly connected to the inside of the motor base 1, the output shaft of the driving motor 1 is fixedly connected to the driving shaft through a coupling, the top of the driving shaft is fixedly connected to an air collecting frame, a connecting hole is opened on the top of the air collecting frame, a docking frame is fixedly connected to the inside of the connecting hole, a docking circular hole is opened in a ring shape at the bottom of the material receiving frame, the docking frame is adapted to the docking circular hole, a collecting ring frame is fixedly connected to the outer wall of the air collecting frame near the top, and the air collecting frame and the grounding sleeve are in a connected state.

[0014] In a preferred embodiment, a water spray hood is fixedly connected to the inner wall of the grounding sleeve near the top, and a water spray hole is opened on the outer wall of the water spray hood facing obliquely downward, and two pump stands are fixedly connected to the top of the external ring, and a water pump and an air pump are respectively fixedly connected to the interior of the two pump stands, and a water delivery pipe is fixedly connected to the water delivery end of the water pump, and one end of the water delivery pipe is inserted into the interior of the water spray hood.

[0015] By providing a water washing component, after the exhaust gas is introduced into the interior of the grounding sleeve through the air pump, the water pump is started to transport the water to the water spray hood, and the water is sprayed out through the water spray holes. In the process of the exhaust gas flowing upward, it contacts the water through various gas channels. As the water is sprayed, the water inside the water-pocketing circular frame gradually overflows to the periphery. The water overflowing from the water-pocketing circular frame cooperates with the sprayed water to fully wash the exhaust gas. The water-pocketing circular frame also plays the role of fully utilizing the water retention.

[0016] In a preferred embodiment, the inner wall of the grounding sleeve located below the water spray hood is fixedly connected to a dispersion rack, and the air delivery end of the air pump is connected to the interior of the grounding sleeve located below the dispersion rack through a pipeline, and a drainage hole is opened on the outer wall of the grounding sleeve at the bottom, and a drainage pipe is fixedly connected to the interior of the drainage hole, and the outer wall of the drainage pipe is connected to a solenoid valve through a flange.

[0017] In a preferred embodiment, the dispersion rack has a water guide groove in a ring shape near the side, and gas channels are opened at equal distances on the dispersion rack. The upper surface of the dispersion rack located at each gas channel is fixedly connected to a mounting rod, and one end of each mounting rod is fixedly connected to a water-collecting circular frame, which is located at the center of the gas channel.

[0018] A cracking furnace waste gas treatment process, using a cracking furnace waste gas treatment device as described above, comprises the following steps:

[0019] Step 1: Exhaust gas water washing. After the air pump guides the exhaust gas into the grounding sleeve, the water pump is started to transport the water to the water spray hood. The water is sprayed out through the water spray holes. During the process of the exhaust gas flowing upward, it contacts the water through various gas channels. As the water is sprayed, the water inside the water-holding circular frame gradually overflows to the periphery. The water overflowing from the water-holding circular frame cooperates with the sprayed water to fully wash the exhaust gas. The exhaust gas after water washing enters the gas collecting frame.

[0020] Step 2: Start the drive motor 1, which drives the gas collecting frame to rotate 60 degrees at regular intervals, so that the exhaust gas is gradually introduced into various positions in the material receiving frame through the docking frame, so that the exhaust gas evenly passes through the air hole 1 and the air hole 2 and enters the packing cylinder;

[0021] Step 3: As the exhaust gas is continuously introduced into the filling cylinder, the adsorbent at the bottom of the filling cylinder is consumed, and the hydraulic cylinder 2 is adjusted to drive the interception plate to move outward. During the movement, the annular scraper scrapes the adsorbent on the interception plate, and the feeding mechanism gradually squeezes the adsorbent into the filling cylinder through the feeding hopper. The adsorbent above squeezes the adsorbent at the bottom, causing it to gradually pass through the coarse-pore mesh plate and fall below, thereby completing the replacement of the bottom layer of adsorbent and continuing to work.

[0022] As can be seen from the above, the present invention provides a cracking furnace waste gas treatment device. When treating the waste gas, the waste gas is washed with water and then introduced into a stuffing tube. The stuffing tube is filled with adsorbent. As the waste gas is continuously introduced, the adsorbent at the bottom of the stuffing tube is consumed, and the hydraulic cylinder 2 is adjusted to drive the interception plate to move outward. During the movement, the annular scraper scrapes the adsorbent on the interception plate, and the feeding mechanism gradually squeezes the adsorbent into the stuffing tube through the feeding hopper. The upper adsorbent squeezes the adsorbent at the bottom, so that it gradually passes through the coarse-hole mesh plate and falls to the bottom, thereby completing the replacement of the adsorbent at the bottom, ensuring that the waste gas is initially introduced into the stuffing tube and the adsorbent is efficiently adsorbed and purified by the adsorbent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a cracking furnace waste gas treatment device proposed by the present invention.

[0024] Figure 2 for Figure 1 The overall structural cross-sectional view.

[0025] Figure 3 This is a schematic structural diagram of an adsorption purification component of a cracking furnace waste gas treatment device proposed by the present invention.

[0026] Figure 4 This is a structural breakdown diagram of a coarse-hole mesh plate and an intercepting plate of a cracking furnace exhaust gas treatment device proposed by the present invention.

[0027] Figure 5 for Figure 4 Bottom view of the local structure.

[0028] Figure 6 This is a schematic diagram of the combined structure of an annular guide rail and a rotating ring gear of a cracking furnace exhaust gas treatment device proposed by the present invention.

[0029] Figure 7 This is a schematic structural diagram of a directional air intake component of a cracking furnace exhaust gas treatment device proposed by the present invention.

[0030] Figure 8 for Figure 7 The overall structure is shown in the cross-sectional diagram.

[0031] Fig. 9 This is a schematic structural diagram of a water washing component of a cracking furnace waste gas treatment device proposed by the present invention.

[0032] Fig.10 This is a schematic diagram of the internal structure of a grounding sleeve of a cracking furnace exhaust gas treatment device proposed by the present invention.

[0033] In the figure: 1. water washing assembly; 101. grounding sleeve; 102. dispersion frame; 103. water spray cover; 104. air pump; 105. pump frame; 106. water pump; 107. water pipe; 108. water spray hole; 109. water guide groove; 110. gas channel; 111. water-collecting round frame; 112. mounting rod; 2. external connecting ring; 3. directional air intake assembly; 301. material receiving frame; 302. collecting ring frame; 303. gas collecting frame; 304. inclined stacking plate; 305. air hole 1; 306. docking frame; 307. motor seat 1; 308. driving motor 1; 309. driving shaft; 310. docking round hole; 311. hydraulic cylinder 1; 312. mounting frame ; 313, built-in frame; 314, arc sealing piece; 4, adsorption purification component; 401, stuffing cylinder; 402, annular guide rail; 403, interception plate; 404, driving gear disc; 405, motor seat two; 406, hydraulic cylinder two; 407, sealing ring; 408, rotating ring gear; 409, coarse-hole mesh plate; 410, air hole two; 411, transfer rod; 412, matching sealing frame; 413, vibration rod; 414, annular scraper; 415, mounting frame; 416, vibration transmission frame; 417, rotating rod; 418, stirring rod; 419, driving shaft; 420, driving motor two; 5, mounting ring; 6, exhaust hole; 7, feeding hopper; 8, support rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] A cracking furnace waste gas treatment device disclosed in the present invention is mainly used in existing cracking furnace waste gas treatment devices. During use, the waste gas is adsorbed and treated by adsorption fillers. However, the adsorption fillers located at the bottom absorb the waste gas best and have the largest absorption amount when in contact with the waste gas. This will result in the need to frequently replace this part of the adsorption fillers to ensure the adsorption and purification effect of the bottom layer. The existing waste gas treatment devices cannot be replaced in time during waste gas treatment, which will lead to a scenario with poor waste gas treatment effect.

[0036] Reference Figure 1-Figure 10 A cracking furnace waste gas treatment device comprises a water washing component 1, the water washing component 1 comprises a grounding sleeve 101, and the outer wall of the grounding sleeve 101 is fixedly connected with an outer ring 2, the top of the outer ring 2 is fixedly connected with support rods 8 at equal distances, the ends of multiple support rods 8 are fixedly connected with the same mounting ring 5, the mounting ring 5 is provided with an adsorption purification component 4, the adsorption purification component 4 comprises a packing tube 401, and the packing tube 401 is fixedly connected to the inner wall of the mounting ring 5, the bottom of the packing tube 401 is fixedly connected with a coarse-hole mesh plate 409, and the outer wall of the packing tube 401 near the bottom end is fixedly connected with a sealing ring 407, and the outer wall of the sealing ring 407 is annularly distributed with hydraulic Cylinder 2 406, the output end of each hydraulic cylinder 2 406 is fixedly connected with an intercepting plate 403, and multiple intercepting plates 403 form a whole circle. The top of each intercepting plate 403 is provided with an air hole 2 410, and the inner wall of the filling cylinder 401 at the center position is fixedly connected with a matching sealing frame 412, and the intercepting plate 403 is in contact with the bottom of the matching sealing frame 412, and the outer wall of the sealing ring 407 facing downward is fixedly connected with an annular scraper 414, and the annular scraper 414 is in contact with the top of the intercepting plate 403, a filling hole is provided at the top of the filling cylinder 401, and a feeding hopper 7 is fixedly connected to the inside of the filling hole, and an exhaust hole 6 is provided at the top of the filling cylinder 401.

[0037] In a specific application scenario, when treating the waste gas, it is washed with water and then introduced into the filling tube 401, in which the adsorbent is filled. As the waste gas is continuously introduced, the adsorbent at the bottom of the filling tube 401 is consumed, and the hydraulic cylinder 406 is adjusted to drive the interception plate 403 to move outward. During the movement, the annular scraper 414 scrapes the adsorbent on the interception plate 403, and the feeding mechanism gradually squeezes the adsorbent into the filling tube 401 through the feeding hopper 7. The upper adsorbent squeezes the adsorbent at the bottom, so that it gradually passes through the coarse-pore mesh plate 409 and falls below, thereby completing the replacement of the bottom layer of the adsorbent, ensuring that the waste gas is initially introduced into the filling tube 401, and the adsorbent efficiently adsorbs and purifies it. This method can achieve gradual filling without manual operation, thereby improving the waste gas treatment effect.

[0038] Specifically, when the adsorbent inside the filling tube 401 is replaced, it is replaced step by step from top to bottom. When the adsorbent at the top moves to the bottom, the exhaust gas is in full contact with it, thereby improving the utilization rate of the adsorbent. At the same time, after the interception plate 403 is adjusted to the outer end, the vibration rod 413 is started. The vibration rod 413 transmits the vibration to the coarse-pore mesh plate 409 through the vibration transmission frame 416 and the transmission rod 411, thereby accelerating the adsorbent to fall from the mesh holes on the coarse-pore mesh plate 409, thereby improving the adsorbent replacement efficiency.

[0039] It should be noted that when the adsorbent is replaced, the drive motor 420 is started, and the drive motor 420 drives the stirring rods 418 under each rotating rod 417 to stir the adsorbent located below to prevent the adsorbent from accumulating on the coarse-hole mesh plate 409 and causing squeezing and failure to discharge smoothly.

[0040] Reference Figure 1 , Figure 4 and Figure 5 In a preferred embodiment, a mounting frame 415 is distributed in a ring on the outer wall of the sealing frame 412, and a vibration rod 413 is fixedly connected to the mounting frame 415. Two vibration transmission frames 416 are fixedly connected to the outer wall of the vibration rod 413. Transfer rods 411 are fixedly connected to the tops of the two vibration transmission frames 416 at equal distances, and the transfer rods 411 are in contact with the bottom of the coarse-pore mesh plate 409.

[0041] Reference Figure 1 , Figure 3 and Figure 6 In a preferred embodiment, a mounting hole is opened on the outer side of the lower half of the filling cylinder 401, and an annular guide rail 402 is fixedly connected inside the mounting hole, and a rotating ring gear 408 is slidably connected inside the annular guide rail 402, and the rotating ring gear 408 is located on the outer side wall of the filling cylinder 401 and is fixedly connected to a rotating rod 417 at an equal distance, and a stirring rod 418 is fixedly connected to the bottom of each rotating rod 417 at an equal distance, and a motor base 405 is fixedly connected to the top of the sealing ring 407, and a driving motor 420 is fixedly connected to the inside of the motor base 405, and the output shaft of the driving motor 420 is fixedly connected to a driving shaft 419 through a coupling, and a driving toothed disc 404 is fixedly connected to the outer side wall of the driving shaft 419, and the driving toothed disc 404 and the rotating ring gear 408 are meshed.

[0042] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8In a preferred embodiment, a directional air intake component 3 is provided below the filling cylinder 401, and the directional air intake component 3 includes a material receiving frame 301, the inner side wall of the material receiving frame 301 is fixedly connected with a mounting frame 312, the mounting frame 312 is fixedly connected to the inner side wall of the matching sealing frame 412, the top of the material receiving frame 301 contacts the bottom of the intercepting plate 403, the inner side wall of the material receiving frame 301 is fixedly connected with an inclined stacking plate 304, the inclined stacking plate 304 is provided with an air hole 305, the inner side wall of the mounting frame 312 is fixedly connected with an inner frame 313, and the outer side wall of the inner frame 313 is annularly distributed with hydraulic cylinders 311, the output end of each hydraulic cylinder 311 is fixedly connected with a blocking arc sheet 314, the mounting frame 312 is located at the inclined stacking plate 3 A feeding hole is provided in the outer wall below 04 in an annular shape, and the arc sealing piece 314 is matched with the feeding hole. The grounding sleeve 101 is fixedly connected with a motor base 307 in the middle, and a driving motor 308 is fixedly connected to the inside of the motor base 307, and the output shaft of the driving motor 308 is fixedly connected to a driving shaft 309 through a coupling, and the top of the driving shaft 309 is fixedly connected with an air collecting frame 303, and a connecting hole is provided on the top of the air collecting frame 303, and a docking frame 306 is fixedly connected to the inside of the connecting hole, and a docking circular hole 310 is provided in an annular shape at the bottom of the connecting frame 301, and the docking frame 306 is matched with the docking circular hole 310, and the outer wall of the air collecting frame 303 near the top is fixedly connected with a collecting ring frame 302, and the air collecting frame 303 and the grounding sleeve 101 are in a connected state.

[0043] In a specific application scenario, after the exhaust gas is washed with water, the exhaust gas enters the air collecting frame 303, and the drive motor 308 is started. The drive motor 308 drives the air collecting frame 303 to rotate 60° at regular intervals, thereby gradually introducing the exhaust gas into various positions in the material receiving frame 301 through the docking frame 306, so that the exhaust gas evenly passes through the air hole 1 305 and the air hole 2 410 into the filling tube 401, thereby improving the uniformity of exhaust gas dispersion, thereby improving the exhaust gas purification effect and the utilization rate of the adsorbent inside the filling tube 401.

[0044] Specifically, the adsorbent discharged through the filling tube 401 is all accumulated in the inclined stacking plate 304, and the exhaust gas after water washing carries water vapor and flows evenly to various positions of the inclined stacking plate 304, and then passes through the air hole 305 to contact the used adsorbent, thereby maximizing the utilization rate of the adsorbent. The adsorbent also absorbs the water vapor carried by the exhaust gas to avoid the water vapor from affecting its subsequent adsorption and purification effect, thereby optimizing the exhaust gas treatment effect.

[0045] It should be noted that after the adsorbent on the inclined stacking plate 304 has been used for a period of time, the hydraulic cylinder 311 is adjusted to drive the sealing arc plate 314 to move toward the center point of the installation sleeve frame 312, and the adsorbent on the inclined stacking plate 304 is gradually introduced into the collection ring frame 302, and the inclined stacking plate 304 cooperates with the intercepting plate 403 to realize the replacement and reuse of the adsorbent.

[0046] Reference Figure 1 , Figure 2 , Fig. 9 and Fig.10 In a preferred embodiment, a water spray hood 103 is fixedly connected to the inner wall of the grounding sleeve 101 near the top, and a water spray hole 108 is opened on the outer wall of the water spray hood 103 facing obliquely downward, and two pump racks 105 are fixedly connected to the top of the external ring 2, and the insides of the two pump racks 105 are respectively fixedly connected to a water pump 106 and an air pump 104, and the water delivery end of the water pump 106 is fixedly connected to a water delivery pipe 107, one end of the water delivery pipe 107 is plugged into the inside of the water spray hood 103, and the inner wall of the grounding sleeve 101 located below the water spray hood 103 is fixedly connected to a dispersion rack 102, and the air delivery end of the air pump 104 is connected to the air pump 104 through a pipe. The channel is connected to the inside of the grounding sleeve 101 below the dispersion rack 102, the outer wall of the grounding sleeve 101 at the bottom is provided with a drainage hole, the inside of the drainage hole is fixedly connected with a drainage pipe, the outer wall of the drainage pipe is connected with a solenoid valve through a flange, the dispersion rack 102 is provided with a water guide groove 109 in a ring near the side, and the dispersion rack 102 is provided with gas channels 110 at equal distances, the upper surface of the dispersion rack 102 at each gas channel 110 is fixedly connected with a mounting rod 112, one end of each mounting rod 112 is fixedly connected with a water-collecting circular frame 111, and the water-collecting circular frame 111 is located at the center of the gas channel 110.

[0047] Specifically, after the exhaust gas is introduced into the grounding sleeve 101 through the air pump 104, the water pump 106 is started to transport water to the water spray hood 103, and the water is sprayed out through the water spray hole 108. In the process of the exhaust gas flowing upward, it contacts the water through each gas channel 110. As the water is sprayed, the water inside the water-collecting circular frame 111 gradually overflows to the periphery. The water overflowing from the water-collecting circular frame 111 cooperates with the sprayed water to fully wash the exhaust gas. The water-collecting circular frame 111 also plays the role of fully utilizing the water retention.

[0048] A cracking furnace waste gas treatment process, using a cracking furnace waste gas treatment device as described above, comprises the following steps:

[0049] Step 1: Exhaust gas water washing. After the air pump 104 guides the exhaust gas into the grounding sleeve 101, the water pump 106 is started to transport water to the water spray cover 103. The water is sprayed out through the water spray hole 108. During the process of the exhaust gas flowing upward, it contacts the water through each gas channel 110. With the spraying of the water, the water inside the water-holding circular frame 111 gradually overflows to the periphery. The overflowing water in the water-holding circular frame 111 cooperates with the sprayed water to fully wash the exhaust gas. The exhaust gas after water washing enters the gas collecting frame 303.

[0050] Step 2: The driving motor 308 is driven to rotate the gas collecting frame 303 by 60 degrees at regular intervals, so that the exhaust gas is gradually introduced into various positions in the material receiving frame 301 through the docking frame 306, so that the exhaust gas evenly passes through the air hole 305 and the air hole 410 and enters the filling cylinder 401;

[0051] Step three: as the exhaust gas is continuously introduced into the filling cylinder 401, the adsorbent at the bottom of the filling cylinder 401 is consumed, and the hydraulic cylinder 2 406 is adjusted to drive the interception plate 403 to move outward. During the movement, the annular scraper 414 scrapes the adsorbent on the interception plate 403, and the feeding mechanism gradually squeezes the adsorbent into the filling cylinder 401 through the feeding hopper 7. The adsorbent above squeezes the adsorbent at the bottom, causing it to gradually pass through the coarse-pore mesh plate 409 and fall below, thereby completing the replacement of the adsorbent at the bottom and continuing to work.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cracking furnace exhaust gas treatment device, comprising a water washing component (1), characterized in that: The water washing component (1) comprises a grounding sleeve (101), and the outer wall of the grounding sleeve (101) is fixedly connected to an outer ring (2), the top of the outer ring (2) is fixedly connected to support rods (8) at equal distances, the ends of multiple support rods (8) are fixedly connected to the same mounting ring (5), and the mounting ring (5) is provided with an adsorption purification component (4), the adsorption purification component (4) comprises a packing tube (401), and the packing tube (401) is fixedly connected to the inner wall of the mounting ring (5), the bottom of the packing tube (401) is fixedly connected to a coarse-hole mesh plate (409), and the outer wall of the packing tube (401) near the bottom end is fixedly connected to a sealing ring (407), and the outer wall of the sealing ring (407) is annularly distributed with hydraulic cylinder 2 (406), The output end of each hydraulic cylinder (406) is fixedly connected to an interception plate (403), and a plurality of interception plates (403) form a full circle. The top of each interception plate (403) is provided with an air hole (410). The inner side wall of the filling tube (401) located at the center is fixedly connected to a matching sealing frame (412), and the interception plate (403) is in contact with the bottom of the matching sealing frame (412). The outer side wall of the sealing ring (407) facing downward is fixedly connected to an annular scraper (414), and the annular scraper (414) is in contact with the top of the interception plate (403). The top of the filling tube (401) is provided with a filling hole, and the inside of the filling hole is fixedly connected to a feeding hopper (7). The top of the filling tube (401) is provided with an exhaust hole (6); The grounding sleeve (101) is fixedly connected to a motor base (307) at the middle, and a driving motor (308) is fixedly connected inside the motor base (307). The output shaft of the driving motor (308) is fixedly connected to a driving shaft (309) via a coupling. The top of the driving shaft (309) is fixedly connected to an air collecting frame (303). A connecting hole is opened at the top of the air collecting frame (303). A docking frame (306) is fixedly connected inside the connecting hole. A docking circular hole (310) is opened in an annular shape at the bottom of the material receiving frame (301). The docking frame (306) is adapted to the docking circular hole (310). The air collecting frame (303) is close to the top. The outer wall is fixedly connected to a collecting ring frame (302), the gas collecting frame (303) is in a communicating state with the grounding sleeve (101), the inner wall of the grounding sleeve (101) close to the top is fixedly connected to a water spray hood (103), and the outer wall of the water spray hood (103) facing obliquely downward is provided with a water spray hole (108), the top of the external ring (2) is fixedly connected to two pump racks (105), the insides of the two pump racks (105) are respectively fixedly connected to a water pump (106) and an air pump (104), the water delivery end of the water pump (106) is fixedly connected to a water delivery pipe (107), and one end of the water delivery pipe (107) is plugged into the inside of the water spray hood (103).

2. A cracking furnace exhaust gas treatment device according to claim 1, characterized in that: The outer wall of the matching sealing frame (412) is provided with a mounting frame (415) in an annular manner, and a vibration rod (413) is fixedly connected to the mounting frame (415), and two vibration transmission frames (416) are fixedly connected to the outer wall of the vibration rod (413), and transmission rods (411) are fixedly connected to the tops of the two vibration transmission frames (416) at equal distances, and the transmission rods (411) are in contact with the bottom of the coarse-pore mesh plate (409).

3. A cracking furnace exhaust gas treatment device according to claim 2, characterized in that: The packing tube (401) is provided with a mounting hole on the outer side of the lower half, and the mounting hole is fixedly connected with an annular guide rail (402) inside, and the annular guide rail (402) is slidably connected with a rotating ring gear (408) inside, and the rotating ring gear (408) is fixedly connected with a rotating rod (417) at an equal distance on the outer side wall inside the packing tube (401), and a stirring rod (418) is fixedly connected to the bottom of each rotating rod (417) at an equal distance, and the top of the sealing ring (407) is fixedly connected with a motor base 2 (405), and the inside of the motor base 2 (405) is fixedly connected with a driving motor 2 (420), and the output shaft of the driving motor 2 (420) is fixedly connected with a driving shaft (419) through a coupling, and the outer side wall of the driving shaft (419) is fixedly connected with a driving toothed disc (404), and the driving toothed disc (404) and the rotating ring gear (408) are meshed.

4. A cracking furnace exhaust gas treatment device according to claim 3, characterized in that: A directional air intake assembly (3) is provided below the filling tube (401), and the directional air intake assembly (3) includes a material receiving frame (301), the inner side wall of the material receiving frame (301) is fixedly connected to a mounting sleeve frame (312), the mounting sleeve frame (312) is fixedly connected to the inner side wall of the matching sealing frame (412), the top of the material receiving frame (301) is in contact with the bottom of the intercepting plate (403), the inner side wall of the material receiving frame (301) is fixedly connected to an inclined stacking plate (304), and an air hole (305) is opened on the inclined stacking plate (304).

5. A cracking furnace exhaust gas treatment device according to claim 4, characterized in that: The inner wall of the installation sleeve (312) is fixedly connected to the built-in frame (313), and the outer wall of the built-in frame (313) is annularly distributed with hydraulic cylinders (311), and the output end of each hydraulic cylinder (311) is fixedly connected to a sealing arc plate (314), and the outer wall of the installation sleeve (312) located below the inclined stacking plate (304) is annularly opened with a feed hole, and the sealing arc plate (314) is matched with the feed hole.

6. A cracking furnace exhaust gas treatment device according to claim 5, characterized in that: The inner wall of the grounding sleeve (101) located below the water spray cover (103) is fixedly connected to a dispersion rack (102), and the gas delivery end of the air pump (104) is connected to the inside of the grounding sleeve (101) located below the dispersion rack (102) through a pipeline. The outer wall of the grounding sleeve (101) located at the bottom end is provided with a drainage hole, the inside of the drainage hole is fixedly connected to a drainage pipe, and the outer wall of the drainage pipe is connected to a solenoid valve through a flange.

7. A cracking furnace exhaust gas treatment device according to claim 6, characterized in that: The dispersion rack (102) is provided with a water guide groove (109) in a circular shape near the side, and gas channels (110) are provided on the dispersion rack (102) at equal distances. The upper surface of the dispersion rack (102) located at each gas channel (110) is fixedly connected to a mounting rod (112), and one end of each mounting rod (112) is fixedly connected to a water-collecting circular frame (111), and the water-collecting circular frame (111) is located at the center of the gas channel (110).

8. A cracking furnace waste gas treatment process, using a cracking furnace waste gas treatment device as claimed in claim 7, characterized in that: The following steps are involved: Step 1: Exhaust gas water washing. After the air pump (104) guides the exhaust gas into the ground sleeve (101), the water pump (106) is started to transport water to the water spray cover (103). The water is sprayed out through the water spray hole (108). During the process of the exhaust gas flowing upward, it contacts the water through each gas channel (110). As the water is sprayed, the water inside the water-holding circular frame (111) gradually overflows to the periphery. The water overflowing from the water-holding circular frame (111) cooperates with the sprayed water to fully wash the exhaust gas. The exhaust gas after water washing enters the gas collecting frame (303); Step 2: Start the driving motor 1 (308), and the driving motor 1 (308) drives the gas collecting frame (303) to rotate 60 degrees at regular intervals, so that the exhaust gas is gradually introduced into various positions in the material receiving frame (301) through the docking frame (306), so that the exhaust gas evenly passes through the air hole 1 (305) and the air hole 2 (410) and enters the filling tube (401); Step three: As the exhaust gas is continuously introduced into the filling cylinder (401), the adsorbent at the bottom of the filling cylinder (401) is consumed, and the hydraulic cylinder 2 (406) is adjusted to drive the interception plate (403) to move outward. During the movement, the annular scraper (414) scrapes off the adsorbent on the interception plate (403), and the feeding mechanism gradually squeezes the adsorbent into the filling cylinder (401) through the feeding hopper (7). The adsorbent above squeezes the adsorbent at the bottom, causing it to gradually pass through the coarse-pore mesh plate (409) and fall below, thereby completing the replacement of the adsorbent at the bottom and continuing to work.

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