A tail gas treatment device and method for phosphoric acid processing

Abstract

The application relates to the technical field of phosphoric acid processing tail gas treatment, and discloses a phosphoric acid processing tail gas treatment device and method, which comprises a separator body, an inner wall scraper, a sliding ring body, an assembly frame body, a mounting outer frame, a mounting rod, an extrusion block, a sliding rod, a positioning plug rod and a connecting part. A first assembly hole is formed in one side of the separator body, and the inner wall scraper is inserted into the first assembly hole. The mounting outer frame is rotationally connected to the middle part of the mounting rod, so that the extrusion block can form a warped plate structure in cooperation with the positioning plug rod, which facilitates the synchronous adjustment and treatment of the inner wall scraper and the positioning plug rod. After the inner wall scraper is moved to the inside of the separator body, the inner wall scraper and the assembly frame body are connected through the connecting part, the sliding ring body is adjusted to rotate, and the impurities on the inner wall of the separator body can be scraped off, so that the separator body does not need to be disassembled for cleaning, and the device is convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of phosphoric acid processing tail gas treatment, and particularly relates to a phosphoric acid processing tail gas treatment device and method. BACKGROUND

[0002] In the production process of phosphoric acid, tail gas containing pollutants such as fluorides, sulfides and dust is generated, so it is necessary to purify the tail gas during the tail gas discharge process of phosphoric acid processing. The tail gas treatment passes through a pretreatment unit, an absorption and purification unit and a demisting unit, and the pretreatment unit of the tail gas includes a cyclone separator.

[0003] The cyclone separator is in the shape of a cone, has a tangential air inlet design, and an exhaust pipe is arranged in the middle of the cyclone separator and is inserted to a depth of about 1 / 3 of the height of the separator body. The cyclone separator separates and processes large-volume particles in the tail gas by generating a centrifugal force through the formation of a strong three-dimensional rotating flow, and a hopper for collecting particles is arranged at the bottom end of the cyclone separator.

[0004] However, when the conventional cyclone separator separates particles, a large amount of impurities will adhere to the side wall of the cyclone separator. The large amount of impurities adhering to the side wall of the cyclone separator will hinder the formation of a rotating flow of the tail gas at the side wall of the cyclone separator, thereby increasing the pressure drop. Therefore, the impurities adhering to the side wall of the cyclone separator need to be cleaned regularly. The design of the conventional cyclone separator is not convenient for cleaning the impurities adhering to the side wall of the cyclone separator. The cyclone separator needs to be disassembled, and then the cleaning of the adhering impurities is performed. Disassembling the cyclone separator and cleaning are time-consuming and laborious. Therefore, the present application proposes a phosphoric acid processing tail gas treatment device and method to solve the above problems. SUMMARY

[0005] Therefore, the present application proposes a phosphoric acid processing tail gas treatment device and method to solve the technical problem that the design of the conventional cyclone separator is not convenient for cleaning the impurities adhering to the side wall of the cyclone separator, the cyclone separator needs to be disassembled, and then the cleaning of the adhering impurities is performed, and disassembling the cyclone separator and cleaning are time-consuming and laborious.

[0006] The technical scheme of the present application is as follows: The present application provides a phosphoric acid processing tail gas treatment device, which comprises a separator body, an inner wall scraper, a sliding ring body, an assembly frame body, a mounting outer frame, a mounting rod, an extrusion block, a sliding rod, a positioning plug rod and a connecting part, wherein,

[0007] A first assembly hole is formed in one side of the separator body, and the inner wall scraper is inserted into the inner side of the first assembly hole, and the end of the inner wall scraper is flush with the inner wall of the separator body.

[0008] The peripheral wall of the separator body is provided with a sliding ring table, which is communicated with the inner cavity of the separator body, and the sliding ring body is rotationally arranged on the inner side of the sliding ring table, and the assembly frame body is arranged on the sliding ring body, and the end of the sliding ring body is aligned with the inner wall scraper in the sliding stroke of the inner wall scraper;

[0009] The mounting outer frame is arranged on the outer side of the separator body, and the mounting rod is rotationally arranged on the mounting outer frame;

[0010] The extrusion block is arranged on one end of the mounting rod and abuts against the inner wall scraper, and the sliding rod is slidingly connected to the other end of the mounting rod and slides in the extension direction of the mounting rod;

[0011] The positioning plug rod is rotationally arranged on the end of the sliding rod and located on one side of the sliding ring table, the sliding ring body is provided with a positioning plug slot, the positioning plug rod penetrates through the sliding ring table and plugs into the positioning plug slot;

[0012] The connecting component is arranged on the assembly frame body, and when the inner wall scraper slides to the inside of the separator body, the connecting component connects the assembly frame body and the inner wall scraper.

[0013] On the basis of the above technical scheme, preferably, further comprising a sealing cover body, wherein,

[0014] The sealing cover body is arranged on the outer side of the separator body and located at the first assembly hole, and when the inner wall scraper slides to the inside of the sealing cover body, the end of the inner wall scraper is sealingly attached to the sealing cover body.

[0015] On the basis of the above technical scheme, preferably, the connecting component comprises a connecting block, a spring and a connecting rope, wherein,

[0016] The end of the assembly frame body is provided with a mounting slot, the connecting block is slidingly connected in the mounting slot and extends out of the mounting slot, the side surface of the connecting block close to the side wall of the separator body is an inclined surface, the side wall of the assembly frame body is provided with a limiting plate, the inner wall scraper is provided with a sliding slot for inserting the connecting block and the limiting plate, the sliding slot is provided with a connecting slot for inserting the connecting block in the inside, and the limiting plate is used to limit the assembly frame body from being separated from the inner wall scraper from the top of the inner wall scraper;

[0017] The spring is arranged between the connecting block and the mounting slot and is used to reset the sliding position of the connecting block;

[0018] The connecting rope is connected with the connecting block, and the end of the connecting rope extends out of the assembly frame body.

[0019] On the basis of the above technical scheme, preferably, a through hole is arranged between the assembling frame body and the sliding ring body and is in communication with each other, the through hole is in communication with the mounting groove, the connecting rope passes through the through hole, and a first connecting hole is arranged on the sliding ring table and is opposite to the through hole on the sliding ring body.

[0020] On the basis of the above technical scheme, preferably, a connecting plate is further included, wherein,

[0021] A connecting groove is arranged on the sliding ring body and is in communication with the through hole, the connecting plate is slidingly connected in the interior of the connecting groove, and a pull ring is rotationally connected to the side of the connecting plate close to the first connecting hole.

[0022] On the basis of the above technical scheme, preferably, a driving motor and a driving gear are further included, wherein,

[0023] The driving motor is arranged on the sliding ring table, the driving gear is fixedly connected with the output shaft of the driving motor, a second connecting hole is arranged on the sliding ring table and is for the driving gear to pass through, a driving tooth groove is arranged on the sliding ring body, the driving gear is inserted into the driving tooth groove and is engaged with the driving tooth groove.

[0024] On the basis of the above technical scheme, preferably, a positioning assembly for positioning the rotating position of the mounting rod is further included, the positioning assembly includes a lead screw and a locking gear, wherein,

[0025] A square block is arranged on the outside of the mounting rod, a second assembling hole is arranged on the mounting outer frame, and the square block is rotationally connected to the inside of the second assembling hole;

[0026] A sliding hole is arranged in the interior of the second assembling hole, the locking gear is slidingly connected in the interior of the sliding hole, a locking tooth groove is arranged on the square block and is opposite to the locking gear, when the locking gear slides, the locking gear is inserted into the locking tooth groove and is engaged with the locking tooth groove;

[0027] The lead screw is threadedly connected on the mounting outer frame and is rotationally connected with the locking gear.

[0028] On the basis of the above technical scheme, preferably, a sieve plate and an air deflector are further included, wherein,

[0029] The separator body is in communication with an air inlet pipe and an air outlet pipe, the air inlet pipe is used for supplying the tail gas to the separator body, and the air outlet pipe is used for discharging the gas in the separator body;

[0030] A plurality of sieve plates are arranged inside the exhaust pipe and are distributed in the extension direction of the exhaust pipe, and the sieve plates are used to filter particles in the exhaust pipe.

[0031] A plurality of air deflectors are arranged inside the exhaust pipe and are located at the end of the exhaust pipe and are distributed equidistantly in the circumferential direction.

[0032] On the basis of the above technical solutions, preferably, the device further comprises a purge gas inlet pipe, a purge gas outlet pipe and an exhaust pipe, wherein,

[0033] The exhaust pipe is rotationally connected to the separator body, and the exhaust pipe is fixedly connected to the assembly frame body.

[0034] The purge gas inlet pipe and the purge gas outlet pipe are both arranged inside the separator body and are located on one side of the exhaust pipe, and the bottom of the purge gas inlet pipe is open.

[0035] A plurality of purge branch pipes are in communication between the purge gas inlet pipe and the exhaust pipe, and the plurality of purge branch pipes are respectively in communication below the plurality of sieve plates and blow out gas towards the sieve plates, and a plurality of exhaust branch pipes are in communication between the purge gas outlet pipe and the exhaust pipe, and the plurality of exhaust branch pipes are respectively located opposite the plurality of purge branch pipes.

[0036] An exhaust pipe is in communication with the purge gas outlet pipe and is used to exhaust gas in the direction of the gas flow in the separator body.

[0037] The application further provides a tail gas treatment method for phosphoric acid processing, which is completed by the tail gas treatment device for phosphoric acid processing and further comprises the following steps.

[0038] S1. When it is necessary to scrape off impurities on the inner wall of the separator body, the mounting rod is controlled to rotate along the mounting outer frame, the positioning plug rod is driven by the sliding rod to slide away from the sliding ring body, and the pressing block is pressed towards the inner wall of the separator body to scrape the scraper plate.

[0039] S2. Until the positioning plug rod completely separates from the positioning plug groove, at this time, the inner wall scraper plate slides to the inside of the separator body and is connected to the assembly frame body through the connecting part.

[0040] S3. The sliding ring body is controlled to rotate along the sliding ring table to complete the scraping treatment of the impurities on the inner wall of the separator body.

[0041] S4. The sliding ring body is controlled to rotate to the reset position, and the mounting rod is controlled to rotate so that the positioning plug rod is completely inserted into the positioning plug groove, at this time, the inner wall scraper plate slides outwards along the first assembly hole, the pressing block blocks the inner wall scraper plate from one side of the inner wall scraper plate, and the inner wall scraper plate is reset.

[0042] The tail gas treatment device and method for phosphoric acid processing have the following beneficial effects relative to the prior art:

[0043] (1) The phosphoric acid processing tail gas treatment device of the present application is connected with the mounting rod at the middle part of the mounting rod through the installation of the outer frame, so that the extrusion block can form a hinged structure with the positioning plug rod. When the positioning plug rod is inserted into the sliding ring body, the extrusion block can be positioned on the inner wall scraper from the side away from the separator body, so that the separator body can be used normally. When the inner wall impurities of the separator body need to be scraped, the positioning plug rod only needs to be adjusted to slide away from the sliding ring body, so that the extrusion block can extrude the inner wall scraper towards the separator body, thereby completing the locking and disengaging of the sliding ring body and the synchronous movement of the inner wall scraper. After the inner wall scraper is moved to the inside of the separator body, the inner wall scraper and the assembly frame body are connected through the connecting part, and the sliding ring body is adjusted to rotate, thereby completing the scraping of the inner wall impurities of the separator body without the need to disassemble the separator body for cleaning, which is convenient to use.(2) The inner wall scraper is connected by the connecting block, and the side wall of the connecting block close to the inner wall scraper is inclined. When the inner wall scraper is adjusted to move towards the inside of the separator body, the connecting block can be inserted into the sliding slot through the compression spring, and the limiting plate is simultaneously inserted into the sliding slot. The connecting block and the limiting plate are simultaneously slid along the sliding slot, and the connecting block is inserted into and connected in the connecting slot under the action of the spring after the inner wall scraper is completely moved to the inside of the separator body. Since the other side of the connecting block is a flat surface, the connection between the inner wall scraper and the assembly frame body is completed under the action of the connecting block, which facilitates the automatic connection of the assembly frame body to the inner wall scraper and the rotation of the inner wall scraper on the inner wall of the separator body, and is convenient to use.

[0044] (3) The mounting rod drives the square block to rotate synchronously, so that when the rotating position of the mounting rod needs to be positioned, the screw rod can be rotated, and the locking gear is inserted into and engaged in the locking tooth groove in the screw rod under the action of the thread, thereby completing the positioning of the rotating position of the mounting rod through the fixed square block. The square block is provided on the outer wall of the mounting rod, which provides the locking tooth groove for the insertion of the locking gear, thereby facilitating the positioning of the rotating position of the mounting rod through the locking gear, and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0046] Figure 1A front perspective view of the tail gas treatment device for phosphoric acid processing according to the present invention;

[0047] Figure 2 A top perspective view of the tail gas treatment device for phosphoric acid processing according to the present invention;

[0048] Figure 3 A right side view of the tail gas treatment device for phosphoric acid processing according to the present invention;

[0049] Figure 4 A rear side view of the tail gas treatment device for phosphoric acid processing according to the present invention; Figure 3 A sectional view of the structure at A-A shown;

[0050] Figure 5 A sectional view of the structure at B shown; Figure 4 An enlarged schematic view of B shown;

[0051] Figure 6 A sectional view of the structure at C-C shown; A sectional view of the structure at C-C shown;

[0052] A sectional view of the structure at C-C shown; Figure 7 A schematic view of the internal structure of the separator body of the tail gas treatment device for phosphoric acid processing according to the present invention; Figure 6 A schematic view of the internal structure of the separator body of the tail gas treatment device for phosphoric acid processing according to the present invention; A schematic view of the internal structure of the separator body of the tail gas treatment device for phosphoric acid processing according to the present invention;

[0053] A schematic view of the internal structure of the separator body of the tail gas treatment device for phosphoric acid processing according to the present invention; Figure 8 A top perspective view of the structure shown; A top perspective view of the structure shown;

[0054] A top perspective view of the structure shown; Figure 9 A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention; Figure 8 A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention; A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention;

[0055] A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention; Figure 10 A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention; A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention;

[0056] A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention; Figure 11 A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention; A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention;

[0057] A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention; Figure 12 A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention; A sectional view of the connection between the mounting outer frame and the square block of the tail gas treatment device for phosphoric acid processing according to the present invention;

[0058] In the figure: 1, separator body; 11, first assembly hole; 12, sliding ring table; 121, first connecting hole; 122, second connecting hole; 13, air inlet pipe; 14, exhaust pipe; 21, inner wall scraper; 211, sliding groove; 212, connecting clamping groove; 22, sealing cover body; 31, sliding ring body; 311, positioning slot; 312, driving gear slot; 313, connecting groove; 32, assembly frame body; 321, mounting groove; 322, threading hole; 41, mounting outer frame; 411, second assembly hole; 412, sliding hole; 42, mounting rod; 43, extrusion block; 44, sliding rod; 45, positioning plug rod; 46, square block; 461, locking gear slot; 5, connecting component; 51, connecting clamping block; 52, spring; 53, connecting rope; 54, connecting plate; 55, pull ring; 56, limiting plate; 61, driving motor; 62, driving gear; 7, positioning assembly; 71, lead screw; 72, locking gear; 81, sieve plate; 82, air deflector; 91, purge gas inlet pipe; 911, purge branch pipe; 92, purge gas outlet pipe; 921, exhaust branch pipe; 93, air outlet pipe. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0060] As Figures 1-12As shown, the phosphoric acid processing tail gas treatment device of the present application comprises a separator body 1, an inner wall scraper 21, a sliding ring body 31, an assembly frame body 32, a mounting outer frame 41, a mounting rod 42, an extrusion block 43, a sliding rod 44, a positioning plug rod 45 and a connecting part 5, wherein a first assembly hole 11 is formed on one side of the separator body 1, and the inner wall scraper 21 is inserted into the inside of the first assembly hole 11, and the end of the inner wall scraper 21 is flush with the inner wall of the separator body 1; a sliding ring table 12 is arranged on the peripheral wall of the separator body 1, the sliding ring table 12 is in communication with the inner cavity of the separator body 1, the sliding ring body 31 is rotatably arranged on the inside of the sliding ring table 12, the assembly frame body 32 is arranged on the sliding ring body 31, and the end of the sliding ring body 31 is aligned with the inner wall scraper 21 in the sliding stroke of the inner wall scraper 21; the mounting outer frame 41 is arranged on the outside of the separator body 1, and the mounting rod 42 is rotatably arranged on the mounting outer frame 41; the extrusion block 43 is arranged on one end of the mounting rod 42 and abuts against the inner wall scraper 21, the sliding rod 44 is slidably connected to the other end of the mounting rod 42 and slides in the extension direction of the mounting rod 42; the positioning plug rod 45 is rotatably arranged on the end of the sliding rod 44 and located on one side of the sliding ring table 12, a positioning plug groove 311 is formed on the sliding ring body 31, the positioning plug rod 45 passes through the sliding ring table 12 and is inserted into the positioning plug groove 311; and the connecting part 5 is arranged on the assembly frame body 32, and when the inner wall scraper 21 slides to the inside of the separator body 1, the connecting part 5 connects the assembly frame body 32 and the inner wall scraper 21.

[0061] In specific implementation, the upper part of the separator body 1 is cylindrical, and the lower part is conical. A gas inlet pipe 13 is communicated with one side of the top of the separator body 1, and the gas inlet pipe 13 tangentially introduces gas into the separator body 1. An exhaust pipe 14 is arranged in the middle of the top of the separator body 1. The inner wall scraper 21 is slidably connected to the conical part of the separator body 1.

[0062] In specific implementation, the sliding rod 44 is inserted into the inside of the mounting rod 42 and slides along the mounting rod 42, the side of the extrusion block 43 away from the mounting rod 42 is arc-shaped, the outer side of the positioning plug rod 45 is provided with a rectangular outer block, the sliding rod 44 is hinged to the rectangular outer block, and the end of the positioning plug rod 45 is provided with a ring rod.

[0063] In the embodiment, the inner wall scraper 21 is located outside the separator body 1 and covers the first assembly hole 11, so that the separator body 1 can normally perform the particle separation treatment in the tail gas. When it is necessary to scrape off the impurities on the inner wall of the separator body 1, the mounting rod 42 is adjusted to rotate along the mounting outer frame 41, so that the sliding rod 44 drives the positioning plug rod 45 to slide away from the sliding ring body 31, the pressing block 43 presses the inner wall scraper 21 into the separator body 1, and the positioning plug rod 45 is completely separated from the positioning plug slot 311. At this time, the inner wall scraper 21 slides to the inside of the separator body 1 and is connected with the assembly frame body 32 through the connecting component 5. The sliding ring body 31 is adjusted to rotate along the sliding ring table 12, the scraping treatment of the impurities on the inner wall of the separator body 1 is completed, the sliding ring body 31 is adjusted to rotate to the reset position, the mounting rod 42 is adjusted to rotate, the positioning plug rod 45 is completely inserted into the positioning plug slot 311, the inner wall scraper 21 slides outwards along the first assembly hole 11, the pressing block 43 blocks the inner wall scraper 21 from one side of the inner wall scraper 21, and the inner wall scraper 21 is reset.

[0064] The mounting outer frame 41 is connected with the mounting rod 42 at the middle part of the mounting rod 42, so that the pressing block 43 can form a hinged plate structure with the positioning plug rod 45. When the positioning plug rod 45 is inserted into the sliding ring body 31, the pressing block 43 can block the inner wall scraper 21 from the side away from the separator body 1, so that the separator body 1 can be normally used. When it is necessary to scrape off the impurities on the inner wall of the separator body 1, the positioning plug rod 45 is only needed to be adjusted to slide away from the sliding ring body 31, so that the pressing block 43 can press the inner wall scraper 21 towards the separator body 1, so as to complete the locking and separation of the sliding ring body 31 and the movement of the inner wall scraper 21. After the inner wall scraper 21 is moved to the inside of the separator body 1, the inner wall scraper 21 and the assembly frame body 32 are connected through the connecting component 5, and the sliding ring body 31 is adjusted to rotate, so as to complete the scraping treatment of the impurities on the inner wall of the separator body 1. The separator body 1 does not need to be disassembled for cleaning, which is convenient to use.

[0065] As a preferred embodiment, the sealing cover 22 is further included. The sealing cover 22 is arranged outside the separator body 1 and located at the first assembly hole 11. When the inner wall scraper 21 slides to the inside of the sealing cover 22, the end of the inner wall scraper 21 is sealingly attached to the sealing cover 22.

[0066] In the embodiment, in order to enable the inner wall scraper 21 to smoothly slide into the inside of the first assembly hole 11 along the assembly frame body 32 after completing the scraping of the impurities on the inner wall of the separator body 1, the size of the first assembly hole 11 is designed to be slightly larger than the size of the inner wall scraper 21. The sealing cover 22 is arranged to realize the sealing treatment between the inner wall scraper 21 and the separator body 1.

[0067] The sealing cover 22 is arranged to increase the sealing between the inner wall scraper 21 and the separator body 1.

[0068] Preferably, the end of the sealing cover 22 is provided with a sealing block for sealingly abutting the inner wall scraper 21.

[0069] As a preferred embodiment, the connecting component 5 comprises a connecting block 51, a spring 52 and a connecting rope 53, wherein the end of the assembly frame body 32 is provided with a mounting groove 321, the connecting block 51 is slidingly connected in the mounting groove 321 and extends out of the mounting groove 321, the side of the connecting block 51 close to the side wall of the separator body 1 is a bevel, the side wall of the assembly frame body 32 is provided with a limiting plate 56, the inner wall scraper 21 is provided with a sliding groove 211 for inserting the connecting block 51 and the limiting plate 56, the sliding groove 211 is provided with a connecting groove 212 for inserting the connecting block 51, and the limiting plate 56 is used to limit the assembly frame body 32 from being separated from the inner wall scraper 21 from the top of the inner wall scraper 21; the spring 52 is arranged between the connecting block 51 and the mounting groove 321 to reset the sliding position of the connecting block 51; the connecting rope 53 is connected with the connecting block 51, and the end of the connecting rope 53 extends out of the assembly frame body 32.

[0070] The connecting block 51 is arranged to connect the inner wall scraper 21, and the side wall of the connecting block 51 close to the inner wall scraper 21 is a bevel, so that when the inner wall scraper 21 is adjusted to move towards the inside of the separator body 1, the connecting block 51 can be inserted into the sliding groove 211 by compressing the spring 52, and the limiting plate 56 is simultaneously inserted into the sliding groove 211, the connecting block 51 and the limiting plate 56 are simultaneously sliding along the sliding groove 211, and after the inner wall scraper 21 is completely moved to the inside of the separator body 1, the connecting block 51 is inserted into and connected in the connecting groove 212 under the action of the spring 52. Since the other side of the connecting block 51 is a plane, the connection between the inner wall scraper 21 and the assembly frame body 32 is completed under the action of the connecting block 51, which facilitates the automatic connection of the assembly frame body 32 to the inner wall scraper 21 and the rotation of the inner wall scraper 21 on the inner wall of the separator body 1, and is convenient to use.

[0071] Meanwhile, the connecting rope 53 is connected with the connecting block 51, which facilitates the adjustment of the sliding of the connecting block 51 to be separated from the connecting groove 212 by pulling the connecting rope 53 from multiple directions.

[0072] The assembly frame body 32 and the sliding ring body 31 are provided with a through hole 322 in communication with each other, the through hole 322 is in communication with the mounting groove 321, the connecting rope 53 passes through the through hole 322, and the sliding ring table 12 is provided with a first connecting hole 121 opposite to the through hole 322 of the sliding ring body 31.

[0073] The first connecting hole 121 is arranged on the sliding ring table 12 opposite to the threading hole 322, so that the connecting rope 53 passing through the threading hole 322 can pass out of the sliding ring table 12 through the first connecting hole 121, facilitating pulling the connecting rope 53 from the outside of the separator body 1 to control the clamping state of the connecting clamping block 51, and facilitating use.

[0074] The connecting plate 54 is further arranged, wherein the sliding ring body 31 is provided with a connecting groove 313 in communication with the threading hole 322, and the connecting plate 54 is slidingly connected in the connecting groove 313, and the side of the connecting plate 54 close to the first connecting hole 121 is rotationally connected with the pull ring 55.

[0075] In specific implementation, the pull ring 55 is rotated in the first connecting hole 121, and when it is necessary to pull the connecting rope 53 to cancel the clamping of the connecting clamping block 51, the pull ring 55 is pulled out and pulled out, at this time, the connecting plate 54 slides along the connecting groove 313, thereby conveniently pulling the connecting rope 53.

[0076] As a preferred embodiment, the drive motor 61 and the drive gear 62 are further arranged, wherein the drive motor 61 is arranged on the sliding ring table 12, the drive gear 62 is fixedly connected with the output shaft of the drive motor 61, the second connecting hole 122 is arranged on the sliding ring table 12 for the drive gear 62 to pass through, the drive tooth groove 312 is arranged on the sliding ring body 31, the drive gear 62 is inserted into the drive tooth groove 312 and engaged with the drive tooth groove 312.

[0077] In specific implementation, the drive tooth groove 312 is an annular tooth groove. When it is necessary to adjust the rotation of the sliding ring body 31, the drive motor 61 is started, the drive motor 61 drives the drive gear 62 to rotate, and the drive gear 62 drives the sliding ring body 31 to rotate under the action of the drive tooth groove 312, thereby automatically adjusting the rotation of the sliding ring body 31.

[0078] The drive motor 61 and the drive gear 62 are arranged to drive the sliding ring body 31 to rotate, so that the driving part can be located outside the separator body 1 to drive the sliding ring body 31 to rotate, compared with directly driving the shaft to drive, the driving shaft is located inside the separator body 1, which may interfere with the gas flow in the separator body 1.

[0079] As a preferred implementation, the positioning assembly 7 for positioning the rotating position of the mounting rod 42 is further included, and the positioning assembly 7 includes a lead screw 71 and a locking gear 72, wherein the outer side of the mounting rod 42 is provided with a square block 46, the mounting outer frame 41 is provided with a second assembly hole 411, and the square block 46 is rotatably connected to the inner side of the second assembly hole 411; the second assembly hole 411 is provided with a sliding hole 412 in the inside, the locking gear 72 is slidably connected to the inside of the sliding hole 412, the square block 46 is provided with a locking gear slot 461 opposite to the locking gear 72, and when the locking gear 72 slides, the locking gear 72 is inserted into the locking gear slot 461 and engaged with the locking gear slot 461; the lead screw 71 is threadedly connected to the mounting outer frame 41 and rotatably connected to the locking gear 72.

[0080] In a specific implementation, the mounting rod 42 drives the square block 46 to rotate synchronously.

[0081] In this way, when the rotating position of the mounting rod 42 needs to be positioned, the lead screw 71 is rotated, and at this time, the lead screw 71 drives the locking gear 72 to slide along the sliding hole 412 under the action of the thread, and the locking gear 72 is inserted into and engaged with the inside of the locking gear slot 461, so that the rotating position of the mounting rod 42 is positioned by fixing the square block 46.

[0082] By providing the square block 46 on the outer wall of the mounting rod 42, the locking gear slot 461 for the locking gear 72 to be inserted is provided, the rotating position of the mounting rod 42 is conveniently positioned by the locking gear 72, and the use is convenient.

[0083] As a preferred implementation, the sieve plate 81 and the air deflector 82 are further included, wherein the separator body 1 is communicated with the air inlet pipe 13 and the air outlet pipe 14, the air inlet pipe 13 is used to supply the exhaust gas to the separator body 1, and the air outlet pipe 14 is used to discharge the gas in the separator body 1; a plurality of sieve plates 81 are arranged in the inside of the air outlet pipe 14 and distributed in the extension direction of the air outlet pipe 14, and the sieve plates 81 are used to filter the particles in the air outlet pipe 14; a plurality of air deflectors 82 are arranged in the inside of the air outlet pipe 14 and located at the end of the air outlet pipe 14, and the air deflectors 82 are distributed at equal intervals in the circumferential direction.

[0084] Further comprising a purge gas inlet pipe 91, a purge gas outlet pipe 92 and an outlet pipe 93, wherein the exhaust pipe 14 is rotatably connected with the separator body 1, and the exhaust pipe 14 is fixedly connected with the assembly frame body 32; the purge gas inlet pipe 91 and the purge gas outlet pipe 92 are both arranged inside the separator body 1 and located on one side of the exhaust pipe 14, and the bottom of the purge gas inlet pipe 91 is open; a plurality of purge branch pipes 911 are communicated between the purge gas inlet pipe 91 and the exhaust pipe 14, and the plurality of purge branch pipes 911 are respectively communicated below the plurality of sieve plates 81 and blow out gas towards the sieve plates 81; a plurality of exhaust branch pipes 921 are communicated between the purge gas outlet pipe 92 and the exhaust pipe 14, and the plurality of exhaust branch pipes 921 are respectively located opposite to the plurality of purge branch pipes 911; and the outlet pipe 93 is communicated on the purge gas outlet pipe 92 and used for discharging gas in the gas flow direction inside the separator body 1.

[0085] The above-mentioned embodiments are preferred embodiments of the tail gas treatment device for phosphoric acid processing, and also extend the structure of the assembly frame body 32 and the like.

[0086] In specific implementation, by arranging the plurality of sieve plates 81 inside the exhaust pipe 14, the design of the plurality of sieve plates 81 can achieve multi-stage screening of particles in the gas flowing through the exhaust pipe 14. The tail gas treatment device for phosphoric acid processing of the application increases the screening effect of particles in the tail gas.

[0087] When the sieve plates 81 screen particles, particles may be attached to the sieve plates 81. Therefore, the purge gas inlet pipe 91 and the purge gas outlet pipe 92 are arranged. In specific implementation, the gas flowing back from the bottom of the separator body 1 is not only introduced into the inside of the exhaust pipe 14, but also introduced into the inside of the purge gas inlet pipe 91. The gas introduced into the purge gas inlet pipe 91 is discharged from the plurality of purge branch pipes 911, thereby completing the purging treatment of the plurality of sieve plates 81 and minimizing the particles that may be attached to the sieve plates 81. After the purging of the purge gas is completed, the purge gas is discharged from the outlet pipe 93 through the purge gas outlet pipe 92. The gas discharged from the outlet pipe 93 is prevented from interfering with the flow of the gas inside the separator body 1 by arranging the gas outlet direction of the outlet pipe 93 to be consistent with the gas flow direction inside the separator body 1.

[0088] By arranging the exhaust pipe 14 to be rotatably connected with the separator body 1 and the exhaust pipe 14 to be fixedly connected with the assembly frame body 32, the exhaust pipe 14 can rotate together with the assembly frame body 32, thereby preventing the purge gas inlet pipe 91 and the purge gas outlet pipe 92 arranged on one side of the exhaust pipe 14 from hindering the rotation of the assembly frame body 32, and facilitating use.

[0089] The application further provides a tail gas treatment method for phosphoric acid processing, which is completed by the tail gas treatment device for phosphoric acid processing and further includes the following steps.

[0090] Step one: when the impurities on the inner wall of the separator body 1 need to be scraped off, the mounting rod 42 is adjusted to rotate along the mounting outer frame 41, so that the sliding rod 44 drives the positioning plug rod 45 to slide away from the sliding ring body 31, and the extrusion block 43 extrudes the inner wall scraper 21 in the separator body 1;

[0091] Step two: until the positioning plug rod 45 completely leaves the positioning plug groove 311, at this time the inner wall scraper 21 slides to the inside of the separator body 1 and is connected with the assembly frame body 32 through the connecting part 5;

[0092] Step three: the sliding ring body 31 is adjusted to rotate along the sliding ring table 12, and the scraping treatment of the impurities on the inner wall of the separator body 1 is completed;

[0093] Step four: the sliding ring body 31 is adjusted to rotate to reset, and the mounting rod 42 is adjusted to rotate, so that the positioning plug rod 45 is completely plugged into the positioning plug groove 311, at this time the inner wall scraper 21 slides out along the first assembly hole 11, the extrusion block 43 blocks the positioning of the inner wall scraper 21 from one side of the inner wall scraper 21, and the inner wall scraper 21 is reset.

[0094] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A phosphoric acid process off-gas treatment apparatus characterized by comprising: The components include a separator body, an inner wall scraper, a sliding ring, an assembly frame, an outer mounting frame, mounting rods, pressing blocks, sliding rods, positioning pins, and connecting components. The connecting components include connecting clips, springs, and connecting ropes. A first mounting hole is provided on one side of the separator body, and the inner wall scraper is inserted into the inner side of the first mounting hole, with the end of the inner wall scraper flush with the inner wall of the separator body. The separator body is provided with a sliding ring platform on its peripheral wall. The sliding ring platform is connected to the inner cavity of the separator body. The sliding ring body is rotatably disposed on the inner side of the sliding ring platform. The assembly frame is disposed on the sliding ring body. The end of the sliding ring body is aligned with the inner wall scraper during the sliding stroke of the inner wall scraper. An external mounting frame is installed on the outside of the separator body, and the mounting rod is rotatably mounted on the external mounting frame. An extrusion block is disposed at one end of the mounting rod and abuts against the inner wall scraper; a sliding rod is slidably connected to the other end of the mounting rod and slides in the extending direction of the mounting rod. A positioning rod is rotatably disposed at the end of the sliding rod and located on one side of the sliding ring platform. A positioning slot is provided on the sliding ring body. The positioning rod passes through the sliding ring platform and is inserted into the positioning slot. A connecting component is provided on the assembly frame. When the inner wall scraper slides to the interior of the separator body, the connecting component connects the assembly frame and the inner wall scraper. The assembly frame has an installation groove at its end, and the connecting block is slidably connected to the inside of the installation groove and extends out of the installation groove. The side of the connecting block near the side wall of the separator body is inclined. A limit plate is provided on the side wall of the assembly frame. A sliding groove is provided on the inner wall scraper for the connecting block and the limit plate to be inserted. A connecting slot is provided inside the sliding groove for the connecting block to be inserted. The limit plate is used to prevent the assembly frame from detaching from the top of the inner wall scraper. A spring is disposed between the connecting block and the mounting groove to reset the sliding position of the connecting block; A connecting rope is connected to the connecting clip, and the end of the connecting rope extends out of the assembly frame.

2. The apparatus for treating tail gas of phosphoric acid processing according to claim 1, characterized by: It also includes a sealing cover, wherein, A sealing cover is disposed on the outside of the separator body and located at the first mounting hole. When the inner wall scraper slides to the inside of the sealing cover, the end of the inner wall scraper is sealed and fitted with the sealing cover.

3. The apparatus for treating tail gas of phosphoric acid processing according to claim 1, wherein: A through hole is provided between the assembly frame and the sliding ring body, and the through hole is connected to the mounting groove. The connecting rope passes through the through hole, and a first connecting hole is provided on the sliding ring platform, which is opposite to the through hole on the sliding ring body.

4. The apparatus for treating tail gas of phosphoric acid processing according to claim 2, wherein: It also includes a connecting plate, in which, The sliding ring body has a connecting groove that communicates with the threading hole. The connecting plate is slidably connected inside the connecting groove, and a pull ring is rotatably connected to the side of the connecting plate near the first connecting hole.

5. The apparatus for treating tail gas of phosphoric acid processing according to claim 1, wherein: It also includes a drive motor and drive gears, among which, A drive motor is mounted on the sliding ring platform, and the drive gear is fixedly connected to the output shaft of the drive motor. A second connecting hole is provided on the sliding ring platform for the drive gear to pass through. A drive tooth groove is provided on the sliding ring body, and the drive gear is inserted into the drive tooth groove and meshes with the drive tooth groove.

6. The phosphoric acid processing off-gas treatment apparatus according to claim 1, characterized by: It also includes a positioning assembly for positioning the rotational position of the mounting rod, the positioning assembly comprising a lead screw and a locking gear, wherein, A rectangular block is provided on the outer side of the mounting rod, and a second assembly hole is provided on the mounting frame. The rectangular block is rotatably connected to the inner side of the second assembly hole. The second assembly hole has a sliding hole inside, and the locking gear is slidably connected inside the sliding hole. The rectangular block has a locking tooth groove that is aligned with the locking gear. When the locking gear is engaged... When the gear slides, the locking gear inserts into the locking tooth groove and meshes with the locking tooth groove; The lead screw is threadedly connected to the mounting frame and rotatably connected to the locking gear.

7. The tail gas treatment device for phosphoric acid processing as described in claim 1, characterized in that: It also includes a sieve plate and an air guide plate, among which, The separator body is connected to an intake pipe and an exhaust pipe. The intake pipe is used to supply exhaust gas to the separator body, and the exhaust pipe is used to discharge the gas inside the separator body. Multiple sieve plates are disposed inside the exhaust pipe and distributed in the extending direction of the exhaust pipe, the sieve plates being used to filter particles inside the exhaust pipe; Multiple air guide vanes are disposed inside the exhaust pipe and located at the end of the exhaust pipe, and are distributed circumferentially at equal intervals.

8. The tail gas treatment device for phosphoric acid processing as described in claim 7, characterized in that: It also includes a purge gas inlet pipe, a purge gas outlet pipe, and an outlet pipe, among which, The exhaust pipe is rotatably connected to the separator body, and the exhaust pipe is fixedly connected to the assembly frame. Both the purge gas inlet pipe and the purge gas outlet pipe are located inside the separator body and on one side of the exhaust pipe, with the bottom of the purge gas inlet pipe open. Multiple purge branch pipes are connected between the purge gas inlet pipe and the exhaust pipe. The multiple purge branch pipes are respectively connected to the bottom of multiple sieve plates and blow gas toward the sieve plates. Multiple exhaust branch pipes are connected between the purge gas outlet pipe and the exhaust pipe. The multiple exhaust branch pipes are respectively positioned opposite to the multiple purge branch pipes. An exhaust pipe, connected to the purge gas exhaust pipe, is used to discharge gas in the direction of airflow within the separator body.

9. A method for treating tail gas from phosphoric acid processing, characterized in that: The process, performed by the tail gas treatment apparatus for phosphoric acid processing according to any one of claims 1 to 8, further includes the following steps: S1. When it is necessary to scrape off the impurities on the inner wall of the separator body, adjust the installation rod to rotate along the installation frame, so that the sliding rod drives the positioning rod to slide away from the sliding ring body, and the extrusion block extrudes the inner wall scraper into the separator body. S2. Until the positioning rod is completely disengaged from the positioning slot, the inner wall scraper slides to the inside of the separator body and is connected to the assembly frame through the connecting parts. S3. Adjust the sliding ring body to rotate along the sliding ring platform to complete the scraping of impurities on the inner wall of the separator body. S4. Adjust the sliding ring to rotate to reset, and adjust the mounting rod to rotate so that the positioning rod is fully inserted into the positioning slot. At this time, the inner wall scraper slides outward along the first assembly hole, and the extrusion block blocks and positions the inner wall scraper from one side, and the inner wall scraper is reset.

Images