Waste gas treatment device for petroleum coke production

Abstract

The invention discloses a waste gas treatment device for petroleum coke production, and relates to the technical field of waste gas treatment devices. Comprising supporting legs; the treatment box is fixedly connected to the supporting legs, an air inlet pipe is arranged on the upper side of the treatment box, an air outlet pipe is arranged on the lower side of the treatment box, a grid plate is installed in the treatment box, and activated carbon is arranged on the grid plate; and the two cleaning plates are symmetrically distributed and slidably connected to the interior of the treatment box, the symmetrically distributed cleaning plates are in contact fit, and the cleaning plates are used for cleaning activated carbon on the inner surface layer of the treatment box. The upper-layer activated carbon is pushed to two sides through back-to-back movement of the symmetrically-distributed cleaning plates, so that the part of activated carbon is separated from the rest of activated carbon, and then waste gas can penetrate through the activated carbon layer at a normal speed, so that the adsorption efficiency of the activated carbon is improved, and meanwhile, the air pressure in the treatment box and the air inlet pipe can be gradually recovered to an initial state; the stability of the treatment box is improved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment devices, and in particular to a waste gas treatment device for petroleum coke production. Background Art

[0002] Petroleum coke is a by-product produced in the oil refining process. It is extracted from raw materials such as heavy crude oil or asphalt through the delayed coking process. The above raw materials will undergo cracking and thermal decomposition reactions under high temperature conditions, producing waste gas containing pollutants such as volatile organic compounds (VOCs), hydrogen sulfide (H2S), and carbon monoxide (CO).

[0003] In order to reduce the harm caused by VOC waste gas to the environment and workers, activated carbon is usually used to adsorb harmful components in VOC waste gas. However, in the petroleum coking process, in addition to the above-mentioned waste gas, some sticky impurities are also generated. These impurities will be mixed in the waste gas and come into contact with the activated carbon. When these impurities come into contact with the activated carbon, they will also adhere to the surface of the activated carbon, blocking the through holes on the activated carbon, reducing the effective area in contact with the waste gas, thereby reducing the adsorption efficiency of the activated carbon for pollutants in the waste gas and reducing the purification efficiency of the waste gas. At the same time, when the through holes of the activated carbon are blocked, the waste gas will require greater thrust when passing through the activated carbon, which will lead to an increase in pressure in the entire waste gas treatment system, affecting the stability and safety of the entire waste gas treatment system. Summary of the invention

[0004] In order to overcome the shortcoming that sticky impurities are easily blocked by activated carbon through holes during the current process of using activated carbon to treat waste gas, the present invention provides a waste gas treatment device for petroleum coke production.

[0005] The technical solution of the present invention is: a waste gas treatment device for petroleum coke production, comprising: Outriggers; A treatment box is fixedly connected to the supporting legs, an air inlet pipe is arranged on the upper side of the treatment box, an air outlet pipe is arranged on the lower side of the treatment box, a mesh plate is installed inside the treatment box, and activated carbon is arranged on the mesh plate; Two cleaning plates are symmetrically distributed and are both slidably connected to the inside of the treatment box. The cleaning plates are used to clean the activated carbon on the surface of the treatment box. Two elastic expansion plates are symmetrically distributed and are both slidably connected to the inside of the processing box, and the elastic expansion plates are used to separate the activated carbon in the processing box; Two telescopic rods are symmetrically distributed and are both rotatably connected to the inside of the processing box. The telescopic rod is rotatably connected to the telescopic portion of the adjacent elastic telescopic plate, and the cleaning plate is extrusion-fitted with the adjacent telescopic rod; A pressure detector installed in the air inlet pipe, used to monitor the air pressure in the processing box; A driving assembly is arranged on the processing box, and the driving assembly is used to change the positions of the symmetrically distributed cleaning plates.

[0006] More preferably, the driving assembly comprises: A positioning rod, rotatably connected to the processing box; A first driving rod is rotatably connected to the processing box, the first driving rod is provided with an external thread, and a driving module is provided on one side of the processing box, and the driving module is used to drive the first driving rod to rotate; The first connecting rod has four parts, two of which are slidably connected to adjacent cleaning plates in a group, a connecting ring is fixedly connected to one end of the first connecting rod away from the cleaning plate, and the symmetrically distributed connecting rings are respectively sleeved on the positioning rod and the first driving rod, wherein the connecting ring sleeved on the positioning rod is slidably connected to the positioning rod, and the connecting ring sleeved on the first driving rod is threadedly connected to the positioning rod.

[0007] More preferably, the drive assembly further comprises: There are four limit blocks, two of which are slidably connected to the adjacent cleaning plates as a group, the inner side of the processing box is provided with symmetrically distributed guide grooves, the two ends of the cleaning plate slide in the adjacent guide grooves respectively, the inner side of the processing box is provided with symmetrically distributed limit grooves, and the limit blocks slide in the adjacent limit grooves; There are multiple first limit plates, all of which are rotatably connected to the processing box, and the first limit plates are located in the adjacent guide grooves. There are multiple second limit plates rotatably connected in the processing box, and the second limit plates are located in the adjacent guide grooves. The first limit plate and the second limit plate are both used to guide the movement of the cleaning plate, and torsion springs are fixed between the first limit plate and the second limit plate and the processing box.

[0008] More preferably, the guide groove is composed of two symmetrically distributed and connected isosceles trapezoidal grooves, the connecting point of the two isosceles trapezoidal grooves on the same guide groove is located on its lower bottom surface, and the two symmetrically distributed cleaning plates slide in adjacent isosceles trapezoidal grooves respectively.

[0009] More preferably, the distance between the upper and lower bottom surfaces of the isosceles trapezoidal groove on the guide groove is greater than the height difference between the upper side of the telescopic end of the elastic telescopic plate and the lower side of the adjacent cleaning plate.

[0010] More preferably, the angles between the inclined surfaces of the two isosceles trapezoidal grooves on the same guide groove and the horizontal plane are no greater than 45°.

[0011] More preferably, it further includes a squeezing mechanism, which is arranged on the processing box and is used to change the height of the activated carbon in the processing box. The squeezing mechanism includes: A second driving rod is rotatably connected to one side of the processing box through a connecting piece, the processing box is provided with a power module, the power module is used to drive the second driving rod to rotate, and the second driving rod is provided with an external thread; The connecting block has two symmetrically distributed ones, both of which are slidably connected to the side of the processing box where the second driving rod is installed, the connecting block is threadedly connected to the second driving rod, the processing box is provided with four slide grooves distributed in a matrix, wherein the two slide grooves located on one side of the second driving rod are through grooves, and the other two slide grooves are blind grooves, the two sides of the fixing portion of the elastic telescopic plate slide in the adjacent slide grooves respectively, and the connecting block is fixedly connected to the fixing portion of the adjacent elastic telescopic plate; The shielding plates are provided with two symmetrically distributed plates, both of which are slidably connected to one side of the processing box close to the second driving rod, and the shielding plates are sealed and matched with the adjacent sliding grooves on the processing box.

[0012] More preferably, the shielding plate is made of elastic material, and the length of the shielding plate is greater than the length of the slide groove on the processing box.

[0013] More preferably, it also includes: A plurality of interception blocks in a linear array, each of which is fixedly connected to the interior of the processing box; The first moving block has a plurality of groups of linear arrays, the number of the groups is one less than the number of the intercepting blocks, the number of the first moving blocks in each group is two, and they are respectively slidably connected to the adjacent intercepting blocks, and a spring is fixedly connected between the first moving block and the adjacent intercepting block; The number of second connecting rods is the same as the number of the first moving blocks, and both are slidably connected to the processing box. The second connecting rods are limitedly rotatably connected to the symmetrically distributed second moving blocks; The number of telescopic sealing shells is the same as the number of the second connecting rods, and they are all arranged on the side of the processing box away from the second driving rod. The end of the second connecting rod away from the second driving rod passes through the processing box and is fixedly connected to the telescopic part of the adjacent telescopic sealing shell. A moving module is arranged on the side of the processing box away from the second driving rod, and the moving module is used to drive the telescopic ends of the telescopic sealing shells in the linear array to move synchronously.

[0014] More preferably, the intercepting block and the first moving block are both provided with inclined surfaces, the inclination angles of the inclined surfaces on both are not less than 45°, the cross-section of the second moving block is an obtuse triangle, and the obtuse angle at the cross-section of the second moving block is not less than 135°.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: the present invention pushes the upper layer of activated carbon to both sides through the back movement of the symmetrically distributed cleaning plates, so that this part of the activated carbon is separated from the rest of the activated carbon, and then the exhaust gas can pass through the activated carbon layer at a normal speed, thereby improving the adsorption efficiency of the activated carbon, and at the same time the air pressure in the treatment box and the intake pipe can gradually return to the initial state, increasing the stability of the treatment box.

[0016] The activated carbon is pushed toward the middle through the symmetrically distributed elastic expansion plates, thereby shortening the area occupied by the projection of the activated carbon on the horizontal plane, so that the activated carbon is gathered upward, that is, the thickness of the remaining activated carbon after cleaning out the activated carbon adhering to grease is increased, thereby avoiding the situation where the time for exhaust gas to pass through the activated carbon is reduced due to the reduction in the thickness of the activated carbon, which in turn leads to incomplete exhaust gas treatment.

[0017] The activated carbon at the bottom is pushed upward by the upward movement of the first moving block of the linear array, thereby disturbing the entire activated carbon, so as to avoid the activated carbon being squeezed by the elastic telescopic plate, resulting in the reduction of the spacing between the activated carbons due to the squeezing force, affecting the normal speed of exhaust gas passing through the activated carbon, and even causing the activated carbon to be squeezed and broken, affecting the normal use of the activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural cross-sectional view of the processing box of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the internal parts of the processing box of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the guide groove and the first limiting plate of the present invention; Figure 5 For the present invention Figure 3 A magnified view of the three-dimensional structure at center A; Figure 6 For the present invention Figure 4 A magnified view of the three-dimensional structure at B in the middle; Figure 7 It is a schematic diagram of the three-dimensional structure of the second driving rod and the connecting block of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting block and the shielding plate of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the elastic expansion plate and the connecting block of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the first moving block and the second connecting rod of the present invention; Fig.11 It is a three-dimensional structural cross-sectional view of the interception block and the moving block of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the second connecting rod and the second moving block of the present invention when they are opened.

[0019] Marked in the figure: 1-support leg, 2-processing box, 4-cleaning plate, 5-elastic telescopic plate, 51-telescopic rod, 6-pressure detector, 7-positioning rod, 8-first driving rod, 9-first connecting rod, 10-connecting ring, 12-guide groove, 121-limiting groove, 122-limiting block, 13-first limiting plate, 14-second limiting plate, 15-second driving rod, 16-connecting block, 17-shielding plate, 18-intercepting block, 20-first moving block, 21-second connecting rod, 22-second moving block, 23-telescopic sealing shell. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0021] like Figure 1-Figure 6 As shown, the present invention proposes a waste gas treatment device for petroleum coke production, which is used for treating waste gas generated in the process of petroleum coking, including: a support leg 1; a treatment box 2, which is fixed to the support leg 1, an air inlet pipe is arranged in the middle of the upper side of the treatment box 2, and an air outlet pipe is arranged on the lower side of the treatment box 2, a grid plate is installed inside the treatment box 2, and activated carbon is arranged on the grid plate; a cleaning plate 4, which has two symmetrically distributed plates on the left and right, and both are slidably connected to the inside of the treatment box 2, and the two cleaning plates 4 are used to clean the activated carbon on the surface of the treatment box 2; an elastic telescopic plate 5, which has two symmetrically distributed plates on the left and right, and both are slidably connected to the inside of the treatment box 2, and the activated carbon is initially located between the two elastic telescopic plates. Between the telescopic plates 5, two elastic telescopic plates 5 are used to separate the activated carbon with sticky substances adhered to it from the rest of the activated carbon in the treatment box 2; the telescopic rods 51 have two symmetrical distributions on the left and right, both of which are rotatably connected to the inside of the treatment box 2, the telescopic rods 51 are rotatably connected to the telescopic parts of the adjacent elastic telescopic plates 5, and the cleaning plate 4 is squeezed and matched with the adjacent telescopic rods 51, so that the two telescopic rods 51 are initially in a stretched state; the pressure detector 6 is installed in the air inlet pipe, and is used to monitor the air pressure in the treatment box 2. The pressure detector 6 is an existing device and is electrically connected to the remote control terminal; the drive component is arranged on the treatment box 2, and the drive component is used to change the position of the two cleaning plates 4.

[0022] In the above scheme, the problem that the sticky substances in the waste gas easily clog the activated carbon through-holes during the process of existing activated carbon adsorbing pollutants in the waste gas is solved. The two cleaning plates 4 are initially located inside the treatment box 2, and the two cleaning plates 4 are initially attached to each other. The waste gas flows from top to bottom into the treatment box 2 through the air inlet pipe, and then flows out from the air outlet pipe on the lower side of the treatment box 2. At the same time, because the air inlet pipe is located in the middle of the upper side of the treatment box 2, the flow rate of the waste gas in the treatment box 2 decreases from the middle to the surroundings during the process of introducing the waste gas into the treatment box 2, that is, the sticky substances adhering to the activated carbon located in the middle of the treatment box 2 are the most. During the movement, the cleaning plate 4 squeezes the adjacent telescopic rod 51 to move the telescopic portion of the adjacent elastic telescopic plate 5 downward, and the telescopic end of the elastic telescopic plate 5 is initially higher than the height of the lower side of the cleaning plate 4.

[0023] Furthermore, the driving assembly includes: a positioning rod 7, which is rotatably connected to the rear part of the processing box 2; a first driving rod 8, which is rotatably connected to the front part of the processing box 2, and the first driving rod 8 is provided with two sections of external threads that are symmetrically distributed on the left and right. A driving module is provided on one side of the processing box 2, and the driving module is used to drive the first driving rod 8 to rotate. The driving module is an existing device, and the figure shows it by taking a motor and a bevel gear set as an example. The motor is fixedly connected to the right side of the processing box 2, and the bevel gear set is respectively fixedly connected to the output shaft of the motor and the right end of the first driving rod 8; a first connecting rod 9, which has four, two first connecting rods 9 are a group of slidingly connected to adjacent cleaning plates 4, and the upper end of the first connecting rod 9 is fixedly connected with a connecting ring 10, and the two connecting rings 10 symmetrically distributed front and back are respectively mounted on the positioning rod 7 and the first driving rod 8, wherein the connecting ring 10 (the connecting ring 10 on the rear side) mounted on the positioning rod 7 is slidably connected to it; the connecting ring 10 (the connecting ring 10 on the front side) mounted on the first driving rod 8 is threadedly connected to it.

[0024] In the above scheme, the four first connecting rods 9 are divided into two groups symmetrically distributed left and right, and each group of first connecting rods 9 includes two symmetrically distributed front and back, and the two first connecting rods 9 in the same group are respectively slidably connected to the front and back sides of the same cleaning plate 4. The remote control terminal drives the first driving rod 8 to rotate through the driving module, and the first driving rod 8 drives the two front connecting rings 10 to move in opposite directions through the two sections of external threads on it during the rotation process. The front connecting ring 10 drives the adjacent cleaning plate 4 to move through the transmission of the adjacent first connecting rod 9 on the front side.

[0025] Furthermore, the driving component also includes: a limit block 122, which has four, two limit blocks 122 are a group of sliding connections to adjacent cleaning plates 4, and a symmetrically distributed guide groove 12 is provided on the inner side of the processing box 2. The two ends of the cleaning plate 4 slide in the adjacent guide grooves 12 respectively. The guide groove 12 is composed of two isosceles trapezoidal grooves that are symmetrically distributed and connected to each other. The connecting point of the two isosceles trapezoidal grooves on the same guide groove 12 is located on its lower bottom surface. The two symmetrically distributed cleaning plates 4 slide in the adjacent isosceles trapezoidal grooves respectively to guide the movement of the adjacent cleaning plates 4. The distance between the upper and lower bottom surfaces of the isosceles trapezoidal grooves on the guide groove 12 is greater than the distance between the upper side of the telescopic end of the elastic telescopic plate 5 and the adjacent cleaning plate 4, ensure that the two cleaning plates 4 will not collide with the telescopic ends of the adjacent elastic telescopic plates 5 during the resetting process. The inner side of the processing box 2 is provided with symmetrically distributed limit grooves 121, and the limit blocks 122 slide in the adjacent limit grooves 121; the first limit plate 13 has a plurality of them, all of which are rotatably connected to the processing box 2, and the first limit plate 13 is located in the adjacent guide groove 12, and a plurality of second limit plates 14 are rotatably connected in the processing box 2, and the second limit plates 14 are located in the adjacent guide groove 12. The first limit plate 13 and the second limit plate 14 are both used to guide the movement of the cleaning plate 4, and torsion springs are fixed between the first limit plate 13 and the second limit plate 14 and the processing box 2.

[0026] In the above scheme, the number of the first limit plates 13 and the second limit plates 14 in the same guide groove 12 is two, the two first limit plates 13 are fixedly connected to the back sides of the two isosceles trapezoidal grooves in the same guide groove 12, and the two second limit plates 14 are fixedly connected to the opposite sides of the two isosceles trapezoidal grooves in the same guide groove 12. At the same time, the two second limit plates 14 are parallel to the horizontal line, and the angle between the two first limit plates 13 and the horizontal plane is the same as the angle between the isosceles trapezoidal inclined surface and the horizontal plane. The first limit plates 13 are used to guide the adjacent cleaning plates 4 from the horizontal part of the lower side of the adjacent isosceles trapezoidal grooves to the inclined part, and the second limit plates 14 are used to limit the adjacent cleaning plates 4, so that the two cleaning plates 4 can only move along the horizontal part of the lower side of the adjacent isosceles trapezoidal grooves during the back movement. The left elastic telescopic plate 5 is initially located on the right side of the junction of the left inclined portion and the upper horizontal portion of the left isosceles trapezoidal groove, and the right elastic telescopic plate 5 is initially located on the left side of the junction of the right inclined portion and the upper horizontal portion of the right isosceles trapezoidal groove, so as to avoid the initial positions of the two elastic telescopic plates 5 affecting the upward movement of the cleaning plate 4. The limit block 122 is a rectangular block and the limit groove 121 is a rectangular groove, so that the limit block 122 can only move laterally along the adjacent limit groove 121, thereby limiting the adjacent cleaning plate 4 in a vertical state.

[0027] Furthermore, the angles between the inclined surfaces of the two isosceles trapezoidal grooves on the same guide groove 12 and the horizontal plane are no greater than 45°, thereby ensuring that the cleaning plate 4 can slide smoothly along the adjacent isosceles trapezoidal grooves.

[0028] Before using this device to treat the produced waste gas, the staff needs to add a certain amount of activated carbon into the treatment box 2, so that the height of the upper surface of the activated carbon in the treatment box 2 is initially lower than the height of the upper side of the telescopic end of the elastic telescopic plate 5, and higher than the height of the lower side of the cleaning plate 4, so as to ensure the treatment quality of the waste gas by the activated carbon. After the activated carbon is added, the staff connects the air inlet pipe on the lower side of the treatment box 2 with the waste gas delivery pipe, so that the waste gas flows into the treatment box 2 and passes through the activated carbon.

[0029] In the process of exhaust gas passing through activated carbon, when sticky substances such as oil and fat in the exhaust gas adhere to the surface of the activated carbon, the flow area of ​​the through holes on the activated carbon is reduced, and the volume of exhaust gas passing through the activated carbon per unit time decreases, thereby causing the pressure in the intake pipe to increase, and then the value detected by the pressure detector 6 to continue to increase. When the value detected by the pressure detector 6 increases to a certain value, the staff starts the drive module, and the drive module drives the first drive rod 8 to rotate.

[0030] When the first driving rod 8 rotates, the first driving rod 8 drives the two connecting rings 10 (the two connecting rings 10 on the front side) thereon to move backwards through the symmetrically distributed external threads thereon, and the two connecting rings 10 on the front side respectively drive the first connecting rods 9 thereon to move synchronously, and the two first connecting rods 9 on the front side respectively drive the cleaning plates 4 thereon to move (the two cleaning plates 4 are respectively guided by the two adjacent second limiting plates 14 and move along the horizontal part of the lower side of the adjacent isosceles trapezoidal grooves). During the movement, the two cleaning plates 4 respectively react on the first connecting rods 9 on the rear side thereof, so that the two first connecting rods 9 on the rear side respectively drive the connecting rings 10 thereon to move synchronously along the positioning rod 7, so as to increase the stability of the two cleaning plates 4 during the movement.

[0031] During the movement of the two cleaning plates 4, the adjacent telescopic rods 51 are squeezed respectively, so that the two telescopic rods 51 rotate around the connection between the fixed parts and the processing box 2 respectively, so as to change the angle between the two telescopic rods 51 and the horizontal plane. At the same time, the telescopic parts of the two elastic telescopic plates 5 are squeezed and move into the fixed parts thereof, thereby reducing the height of the telescopic parts of the elastic telescopic plates 5. In addition, the telescopic parts of the two elastic telescopic plates 5 react to the telescopic ends of the adjacent telescopic rods 51 during the movement, so that the telescopic ends of the telescopic rods 51 move into the fixed parts thereof. The movement process of the left cleaning plate 4 is described below as an example: When the left cleaning plate 4 moves to the left and contacts with the upper side of the telescopic part of the left elastic telescopic plate 5, the telescopic part of the left elastic telescopic plate 5 no longer continues to move downward (but at this time the telescopic part of the left elastic telescopic plate 5 has not moved downward to the limit position), when the left cleaning plate 4 continues to move to the left, the left cleaning plate 4 is separated from the telescopic part of the left elastic telescopic plate 5, and then the telescopic part of the left elastic telescopic plate 5 drives the adjacent telescopic rod 51 to synchronously return to the initial position, until the left cleaning plate 4 moves to the left and contacts with the two first limiting plates 13 on the left, the left cleaning plate 4 continues to move and squeeze the right side surface of the two first limiting plates 13 on the left, so that the two first limiting plates 13 on the left swing around the connection between them and the processing box 2, and the torsion springs between the two first limiting plates 13 on the left and the processing box 2 are synchronously twisted and stored, until the left cleaning plate 4 moves to the left and contacts with the limit position, the left cleaning plate 4 loses contact with the two first limiting plates 13 on the left, and at this time, the two first limiting plates 13 on the left are respectively reset to the initial position under the action of adjacent torsion springs.

[0032] In the process of the above-mentioned left cleaning plate 4 moving to the left, the left cleaning plate 4 pushes the left half of the upper layer of activated carbon between the two elastic expansion plates 5 to the left, and pushes this part of activated carbon to the left side of the left elastic expansion plate 5, so as to separate this part of activated carbon from the rest of the activated carbon, so that the exhaust gas can pass through the activated carbon between the two elastic expansion plates 5 at a normal speed, and at the same time increase the contact area between the activated carbon and the exhaust gas, thereby improving the adsorption efficiency of the activated carbon, so that the air pressure in the treatment box 2 and the intake pipe can gradually return to the initial state, thereby increasing the stability of the treatment box 2.

[0033] After the left cleaning plate 4 moves to the left to the extreme position, the staff starts the driving module in reverse, and the driving module drives the first driving rod 8 to rotate in the opposite direction, and then drives the left cleaning plate 4 to reset to the right through other parts connected to the first driving rod 8. In the process of resetting the left cleaning plate 4 to the right, the left cleaning plate 4 moves upward along the two first limiting plates 13 on the left, that is, the two first limiting plates 13 on the left guide the left cleaning plate 4 to the inclined part on the left side of the two isosceles trapezoidal grooves on the left when the left cleaning plate 4 moves to the right, so that the left cleaning plate 4 moves upward while moving to the right, until the left cleaning plate 4 moves to the horizontal part of the upper part of the two isosceles trapezoidal grooves on the left, the left cleaning plate 4 no longer moves upward, and then the left cleaning plate 4 only moves to the right.

[0034] When the left cleaning plate 4 moves to the right and contacts the inclined portion on the right side of the two isosceles trapezoidal grooves on the left, the left cleaning plate 4 moves downward along the inclined portion on the right side of the two isosceles trapezoidal grooves while moving to the right, until the left cleaning plate 4 moves to the position contacting the two second limit plates 14 on the left, the left cleaning plate 4 squeezes the two second limit plates 14 on the left while continuing to move, so that the two second limit plates 14 on the left swing around the connection between them and the processing box 2, and the two second limit plates 14 on the left are synchronously twisted and stored around the torsion springs between the processing box 2, until the left cleaning plate 4 moves to the right to the initial position, the two second limit plates 14 on the left lose contact with the left cleaning plate 4, and then the two second limit plates 14 on the left are respectively reset to the initial position under the action of adjacent torsion springs (the movement process of the right cleaning plate 4 and its matching connection will not be described in detail, refer to the above).

[0035] In the process of the two cleaning plates 4 moving, the two cleaning plates 4 respectively drive the two limit blocks 122 thereon to move along the adjacent limit grooves 121 respectively, and the four limit grooves 121 respectively cooperate with the adjacent limit blocks 122 to keep the two cleaning plates 4 in a vertical state during the movement. In the process of the two cleaning plates 4 moving upward, the contact positions of the two cleaning plates 4 and the adjacent limit blocks 122 are constantly changing, but the two cleaning plates 4 are always kept in a vertical position by the adjacent limit blocks 122 during the movement.

[0036] After both cleaning plates 4 are reset to their initial positions, the staff shuts down the drive module in preparation for next use. After the device has been used for a period of time, the staff separates the air inlet from the treatment box 2, and then replaces the activated carbon in the treatment box 2 to continue treating the exhaust gas.

[0037] Furthermore, Figure 7-Figure 9As shown, it also includes an extrusion mechanism, which is arranged on the treatment box 2. The extrusion mechanism is used to change the height of the activated carbon in the treatment box 2. The extrusion mechanism includes: a second drive rod 15, which is rotatably connected to the rear side of the treatment box 2 through a connecting piece. The treatment box 2 is provided with a power module, which is used to drive the second drive rod 15 to rotate. The second drive rod 15 is provided with an external thread. The power module is an existing device. The figure shows a motor and a bevel gear set as an example, wherein the motor is fixedly connected to the rear side of the treatment box 2, and the bevel gear set is respectively fixedly connected to the output shaft of the motor and the second drive rod 15; a connecting block 16, which has two symmetrically distributed left and right, both of which are slidably connected to On the rear side of the processing box 2, the connecting block 16 is threadedly connected to the second driving rod 15, and the processing box 2 is provided with four slide grooves distributed in a matrix, two of the four slide grooves on the processing box 2 are located on its front side, and two are located on its rear side. The two slide grooves on its rear side are through grooves, and the front and rear sides of the fixed part of the elastic telescopic plate 5 slide in the adjacent slide grooves respectively, and the connecting block 16 is fixedly connected to the fixed part of the adjacent elastic telescopic plate 5; the shielding plate 17 has two symmetrically distributed on the left and right, both of which are slidably connected to the rear side of the processing box 2, and the shielding plate 17 cooperates with the adjacent slide grooves on the processing box 2 to prevent the activated carbon in the processing box 2 and the untreated exhaust gas from leaking.

[0038] In the above scheme, the second driving rod 15 is provided with two sections of external threads symmetrically distributed on the left and right. The second driving rod 15 drives the two connecting blocks 16 to move in opposite directions through the two sections of external threads thereon during the rotation process. The shielding plate 17 is made of elastic deformable material. The connecting block 16 drives the adjacent shielding plates 17 to move synchronously during the movement process, and changes the relative position of the shielding plates 17, so that the shielding plates 17 shield the adjacent slide grooves on the rear side of the processing box 2 during the movement process. The four slide grooves on the processing box 2 are all rectangular grooves, and the parts of the two elastic telescopic plates 5 that slide in the adjacent slide grooves are also rectangular, which are used to limit the two elastic telescopic plates 5 in a vertical state to prevent the two elastic telescopic plates 5 from tilting during the movement of the two elastic telescopic plates 5.

[0039] Furthermore, the shielding plate 17 is made of elastic material, and the length of the shielding plate 17 is greater than the length of the slide groove on the processing box 2.

[0040] In the above solution, the material and size of the shielding plate 17 are limited to ensure that the connecting block 16 can drive the adjacent shielding plate 17 to move normally, and at the same time ensure that the shielding plate 17 after movement can still block the adjacent chute on the processing box 2.

[0041] After the above control shuts down the drive module, the staff starts the power module, and the power module drives the second drive rod 15 to rotate. During the rotation process, the second drive rod 15 drives the two connecting blocks 16 to move closer to each other through the external threads symmetrically distributed thereon. The following is a description of the process in which the left connecting block 16 moves to the right as an example: When the left connecting block 16 moves to the right, the connecting block 16 drives the fixed part of the adjacent elastic expansion plate 5 to move to the right, and the elastic expansion plate 5 on the left squeezes the activated carbon, causing the activated carbon to move due to the squeezing force, thereby increasing the thickness of the remaining activated carbon after cleaning out the activated carbon with adhering grease, thereby avoiding the situation where the time for exhaust gas to pass through the activated carbon is shortened due to the reduction of the thickness of the activated carbon, thereby causing incomplete exhaust gas treatment.

[0042] During the process of the left connecting block 16 moving to the right, the left connecting block 16 drives the adjacent shielding plate 17 to move to the right synchronously, so that the left shielding plate 17 blocks the slide groove on the left rear side of the treatment box 2 to prevent the activated carbon and untreated exhaust gas in the treatment box 2 from leaking out. The movement process of the right connecting block 16 will not be described in detail, and you can refer to the above.

[0043] After the activated carbon between the two elastic retractable plates 5 returns to its initial height, the staff shuts down the power module. At the same time, in the subsequent use, the staff starts the drive module and the power module multiple times according to the value detected by the pressure detector 6 to remove the activated carbon with sticky impurities multiple times. At the same time, the staff can judge the specific use of the activated carbon according to the position of the two connecting blocks 16, and use this to judge whether the activated carbon needs to be replaced. Each time the activated carbon is replaced, the staff needs to reset the two connecting blocks 16 and other parts connected thereto to their initial positions.

[0044] During the process of the left elastic telescopic plate 5 moving to the right, the telescopic portion of the left elastic telescopic plate 5 squeezes the telescopic end of the left telescopic rod 51, so that the telescopic end of the left telescopic rod 51 moves toward its fixed portion due to the squeezing force, thereby shortening the length of the left telescopic rod 51 and increasing the angle between the left telescopic rod 51 and the horizontal plane. The movement process of the right telescopic rod 51 can refer to the above.

[0045] Furthermore, Figure 1-Figure 3 and Figure 10-12As shown, it also includes: interception blocks 18, which have a plurality of linear arrays, all of which are fixedly connected to the interior of the processing box 2; first moving blocks 20, which have a plurality of groups of linear arrays, the number of groups is one less than the number of interception blocks 18, and the number of first moving blocks 20 in each group is two, which are symmetrically distributed on the left and right, and are respectively slidably connected to adjacent interception blocks 18, and springs are fixedly connected between the first moving blocks 20 and the adjacent interception blocks 18 to drive the first moving blocks 20 to reset after moving; second connecting rods 21, the number of which is the same as the number of groups of the first moving blocks 20, are all slidably connected to the processing box 2, and the second connecting rods 21 are limitedly rotatably connected to the second moving blocks 22, which are symmetrically distributed on the left and right, and the maximum rotation angle of the second moving blocks 22 is 90°; telescopic sealing shells 23, the number of which is the same as the number of the second connecting rods 21, are all arranged at the processing box 2. On the front side of the processing box 2, the telescopic sealing shell 23 is composed of two multi-stage telescopic shells symmetrically distributed up and down, and the two telescopic ends symmetrically distributed up and down in the same telescopic sealing shell 23 are fixedly connected, and the front end of the second connecting rod 21 passes through the processing box 2 and is fixedly connected to the telescopic part of the adjacent telescopic sealing shell 23. A moving module is provided on the front side of the processing box 2. The moving module is used to drive the telescopic ends of the telescopic sealing shells 23 of the linear array to move synchronously. In the figure, the moving module is demonstrated by taking a motor and a threaded rod as an example. The motor is fixed to the front side of the processing box 2, and the threaded rod is rotatably connected to the front side of the processing box 2, and the threaded rod is matched with the output shaft of the motor for transmission. The telescopic ends of the telescopic sealing shells 23 of the linear array are threadedly connected to the threaded rod through connecting pieces, and the rotation speed of the motor in the moving module is greater than the rotation speed of the motor in the above-mentioned power module.

[0046] In the above scheme, the interception blocks 18 of the linear array replace the grid plate in the above scheme and are used to store the activated carbon. The two interception blocks 18 on the left and right have three sides fixed to the processing box 2, and the remaining interception blocks 18 have two sides fixed to the processing box 2. The two first moving blocks 20 in the same group are slidably connected to the lower sides of two different and adjacent interception blocks 18. Fig.10 and Fig.11 The positions of the first movable block 20, the second connecting rod 21, the second movable block 22 and the telescopic end of the telescopic sealing shell 23 shown in the figure are not the initial positions of the four. The four shown in the figure can continue to move downward. In the initial position, the upper side of the second movable block 22 is flush with the upper side surface of the intercepting block 18, the telescopic end on the upper side of the telescopic sealing shell 23 is completely pulled out, and the telescopic end on the lower side is completely retracted into its fixed part.

[0047] Furthermore, the intercepting block 18 and the first moving block 20 are both provided with inclined surfaces, and the inclination angles of the inclined surfaces on both are not less than 45°. The cross-section of the second moving block 22 is an obtuse triangle, and the obtuse angle of the obtuse triangle at the cross-section of the second moving block 22 is not less than 135°, so as to avoid that the two second moving blocks 22 in the same group cannot squeeze the two first moving blocks 20 in an adjacent group during the downward movement, so that the two first moving blocks 20 in the adjacent group are separated.

[0048] In the above scheme, initially, the obtuse angles of the two second moving blocks 22 in the same group are located on both sides of the adjacent second connecting rods 21, and the distance between the hypotenuses corresponding to the obtuse angles on the cross-sections of the two second moving blocks 22 in the same group gradually decreases from top to bottom. The leftmost and rightmost intercepting blocks 18 of the linear array have only inclined surfaces on the opposite sides, and the left and right sides of the remaining intercepting blocks 18 are both provided with inclined surfaces.

[0049] When the above-mentioned staff starts the power module, the staff starts the moving module, and the moving module drives the telescopic parts of the telescopic sealing shells 23 of the linear array to move upward synchronously. The following is a description of the moving process of the telescopic end of the left telescopic sealing shell 23 as an example: The telescopic part of the telescopic sealing shell 23 drives the two second moving blocks 22 on the left side to move upward synchronously through the transmission of the second connecting rod 21 on the left side. At the same time, the telescopic part of the telescopic sealing shell 23 pulls out the part inside the lower fixed part and inserts the upper part back into the upper fixed part during the movement, until the lower side of the two second moving blocks 22 on the left side moves upward to above the lower side surfaces of the two adjacent first moving blocks 20, the squeezing force of the two second moving blocks 22 on the left side on the two adjacent first moving blocks 20 gradually decreases, and then the two first moving blocks 20 on the left side are respectively approached to each other under the action of adjacent springs, until the opposite sides of the two adjacent first moving blocks 20 on the left side contact each other, and the two first moving blocks 20 on the left side no longer move, and at this time, the springs between the two first moving blocks 20 on the left side and the adjacent intercepting blocks 18 are still in a compressed state.

[0050] After the two second moving blocks 22 on the left side move upward to above the lower side surfaces of the two adjacent first moving blocks 20, during the process of the two second moving blocks 22 on the left side continuing to move upward, the activated carbon squeezes the inclined surface of the obtuse angle on the two second moving blocks 22 on the left side, so that the two second moving blocks 22 on the left side are squeezed and rotate around the adjacent second connecting rod 21, even if the two second moving blocks 22 on the left side are gradually changed from a vertical state to a horizontal state, so as to increase the contact area between the two second moving blocks 22 on the left side and the activated carbon, so that the two second moving blocks 22 on the left side push the activated carbon at the bottom upward during the upward movement, thereby disturbing the entire activated carbon, avoiding the activated carbon being squeezed and agglomerated in the process of the two elastic telescopic plates 5 approaching each other and squeezing the activated carbon, so that the spacing between the activated carbon is reduced, affecting the normal speed of exhaust gas passing through the activated carbon, and even causing the activated carbon to be squeezed and broken, affecting the normal use of the activated carbon. The movement process of the telescopic part of the remaining telescopic sealing shell 23 can refer to the above.

[0051] After the telescopic part of the telescopic sealing shell 23 of the linear array moves upward to the limit state, the staff controls the moving module to drive the telescopic part of the telescopic sealing shell 23 of the linear array to return downward to the initial position, and then the staff shuts down the moving module.

[0052] When the above-mentioned staff starts the mobile module, it is started intermittently. At the same time, when starting the mobile module, it is necessary to pay attention to the position of the two elastic retractable plates 5 to avoid the second moving block 22 of the linear array colliding with the elastic retractable plates 5 during the upward movement, affecting the normal use of both.

[0053] After the device has been used for a period of time, the staff will separate the air inlet from the treatment box 2 so that the exhaust gas is no longer transported into the treatment box 2. The staff will then replace the activated carbon in the treatment box 2 and inspect other parts in the treatment box 2 for subsequent continued use.

[0054] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste gas treatment device for petroleum coke production, characterized in that: include: Leg (1); A treatment box (2) is fixedly connected to the support leg (1), an air inlet pipe is arranged on the upper side of the treatment box (2), an air outlet pipe is arranged on the lower side of the treatment box (2), a mesh plate is installed inside the treatment box (2), and activated carbon is arranged on the mesh plate; Two cleaning plates (4) are symmetrically distributed and are both slidably connected to the inside of the processing box (2). The cleaning plates (4) are used to clean the activated carbon on the inner surface of the processing box (2); two elastic expansion plates (5) symmetrically distributed and both slidably connected to the interior of the processing box (2); the elastic expansion plates (5) are used to separate the activated carbon in the processing box (2); The telescopic rods (51) have two symmetrically distributed ones, both of which are rotatably connected to the inside of the processing box (2), the telescopic rods (51) are rotatably connected to the telescopic part of the adjacent elastic telescopic plate (5), and the cleaning plate (4) is extruded and matched with the adjacent telescopic rods (51); A pressure detector (6) installed in the air inlet pipe and used to monitor the air pressure in the processing box (2); A drive assembly is arranged on the processing box (2), and the drive assembly is used to change the position of the symmetrically distributed cleaning plates (4).

2. The waste gas treatment device for petroleum coke production according to claim 1, characterized in that: The drive assembly comprises: A positioning rod (7) rotatably connected to the processing box (2); A first driving rod (8) is rotatably connected to the processing box (2), the first driving rod (8) being provided with an external thread, and a driving module is provided on one side of the processing box (2), the driving module being used to drive the first driving rod (8) to rotate; The first connecting rod (9) has four parts, two of which are slidably connected to adjacent cleaning plates (4) in a group, and one end of the first connecting rod (9) away from the cleaning plate (4) is fixedly connected with a connecting ring (10), and the symmetrically distributed connecting rings (10) are respectively sleeved on the positioning rod (7) and the first driving rod (8), wherein the connecting ring (10) sleeved on the positioning rod (7) is slidably connected to the positioning rod, and the connecting ring (10) sleeved on the first driving rod (8) is threadedly connected to the positioning rod.

3. The waste gas treatment device for petroleum coke production according to claim 2, characterized in that: The drive assembly also includes: There are four limit blocks (122), two of which are slidably connected to adjacent cleaning plates (4) in a group, the inner side of the processing box (2) is provided with symmetrically distributed guide grooves (12), the two ends of the cleaning plate (4) slide in the adjacent guide grooves (12), the inner side of the processing box (2) is provided with symmetrically distributed limit grooves (121), and the limit blocks (122) slide in the adjacent limit grooves (121); There are a plurality of first limit plates (13), all of which are rotatably connected to the processing box (2), and the first limit plates (13) are located in the adjacent guide grooves (12). A plurality of second limit plates (14) are rotatably connected in the processing box (2), and the second limit plates (14) are located in the adjacent guide grooves (12). The first limit plates (13) and the second limit plates (14) are both used to guide the movement of the cleaning plate (4), and torsion springs are fixed between the first limit plates (13) and the second limit plates (14) and the processing box (2).

4. The waste gas treatment device for petroleum coke production according to claim 3, characterized in that: The guide groove (12) is composed of two symmetrically distributed and connected isosceles trapezoidal grooves, the connecting point of the two isosceles trapezoidal grooves on the same guide groove (12) is located on its lower bottom surface, and the two symmetrically distributed cleaning plates (4) slide in adjacent isosceles trapezoidal grooves respectively.

5. The waste gas treatment device for petroleum coke production according to claim 4, characterized in that: The distance between the upper and lower bottom surfaces of the isosceles trapezoidal groove on the guide groove (12) is greater than the height difference between the upper side of the telescopic end of the elastic telescopic plate (5) and the lower side of the adjacent cleaning plate (4).

6. The waste gas treatment device for petroleum coke production according to claim 5, characterized in that: The included angles between the inclined surfaces of the two isosceles trapezoidal grooves on the same guide groove (12) and the horizontal plane are no greater than 45°.

7. The waste gas treatment device for petroleum coke production according to claim 3, characterized in that: It also includes a squeezing mechanism, which is arranged on the processing box (2) and is used to change the height of the activated carbon in the processing box (2). The squeezing mechanism includes: a second driving rod (15) rotatably connected to one side of the processing box (2) via a connecting piece, the processing box (2) being provided with a power module, the power module being used to drive the second driving rod (15) to rotate, the second driving rod (15) being provided with an external thread; The connecting block (16) has two symmetrically distributed ones, both of which are slidably connected to the side of the processing box (2) on which the second driving rod (15) is installed, the connecting block (16) is threadedly connected to the second driving rod (15), the processing box (2) is provided with four slide grooves distributed in a matrix, wherein the two slide grooves located on the side of the second driving rod (15) are through grooves, and the other two slide grooves are blind grooves, the two sides of the fixed part of the elastic telescopic plate (5) slide in the adjacent slide grooves respectively, and the connecting block (16) is fixedly connected to the fixed part of the adjacent elastic telescopic plate (5); The shielding plates (17) have two symmetrically distributed ones, both of which are slidably connected to a side of the processing box (2) close to the second driving rod (15), and the shielding plates (17) are in sealing cooperation with adjacent sliding grooves on the processing box (2).

8. The waste gas treatment device for petroleum coke production according to claim 7, characterized in that: The shielding plate (17) is made of elastic material, and the length of the shielding plate (17) is greater than the length of the slide groove on the processing box (2).

9. The waste gas treatment device for petroleum coke production according to claim 7, characterized in that: Also includes: A plurality of interception blocks (18) in a linear array, all of which are fixedly connected to the interior of the processing box (2); The first moving blocks (20) have a plurality of groups of linear arrays, the number of the groups being one less than the number of the intercepting blocks (18), the number of the first moving blocks (20) in each group being two, respectively slidably connected to adjacent intercepting blocks (18), and a spring being fixedly connected between the first moving blocks (20) and the adjacent intercepting blocks (18); The number of second connecting rods (21) is the same as the number of groups of the first moving blocks (20), and both are slidably connected to the processing box (2). The second connecting rods (21) are limitedly rotatably connected to symmetrically distributed second moving blocks (22); The number of telescopic sealing shells (23) is the same as the number of the second connecting rods (21), and they are all arranged on the side of the processing box (2) away from the second driving rod (15). One end of the second connecting rod (21) away from the second driving rod (15) passes through the processing box (2) and is fixedly connected to the telescopic part of the adjacent telescopic sealing shell (23). A moving module is arranged on the side of the processing box (2) away from the second driving rod (15), and the moving module is used to drive the telescopic ends of the telescopic sealing shells (23) of the linear array to move synchronously.

10. The waste gas treatment device for petroleum coke production according to claim 9, characterized in that: The intercepting block (18) and the first moving block (20) are both provided with inclined surfaces, the inclination angles of the inclined surfaces on both of them are not less than 45°, the cross section of the second moving block (22) is an obtuse triangle, and the obtuse angle at the cross section of the second moving block (22) is not less than 135°.

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