Environment-friendly engineering yellow phosphorus flue gas filtering treatment device and treatment method thereof

Abstract

The application discloses an environment-friendly yellow phosphorus flue gas filtering treatment device and a treatment method thereof, and particularly relates to the field of yellow phosphorus flue gas treatment. The device comprises a filtering and dust removing mechanism, the input end of the filtering and dust removing mechanism is provided with a conveying pipeline, and the conveying pipeline is provided with an adsorption mechanism. The inside of the adsorption mechanism is provided with an inserting and dividing mechanism, the inserting and dividing mechanism is arranged along the diameter direction of the conveying pipeline, and the inserting and dividing mechanism comprises a first inserting and dividing seat, the first inserting and dividing seat is provided with an inserting and dividing plate, and the two sides of the inserting and dividing plate are provided with powder injection ports. The inserting and dividing plate can be used for directly injecting adsorption medium into corresponding areas. When the diameter of the conveying pipeline is larger and the discharge speed is increased, the yellow phosphorus flue gas layering phenomenon is not affected, sufficient adsorption medium is provided for the yellow phosphorus flue gas in the edge area and the center area, the adsorption of talcum powder on the yellow phosphorus flue gas and the subsequent anti-blocking effect are improved, and the environment-friendly engineering construction requirement is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of yellow phosphorus flue gas treatment, and more particularly to a yellow phosphorus flue gas filtering treatment device for environmental protection engineering and a treatment method thereof. BACKGROUND

[0002] Yellow phosphorus flue gas is waste gas generated in the production process of yellow phosphorus, and the main component is carbon monoxide (CO) with a content of 85% to 90%, and contains dust impurities of elements such as phosphorus, sulfur, arsenic, and fluorine. A large amount of water vapor is also contained in the yellow phosphorus flue gas, such as the steam of the deslagging water and the water in the combustion tail gas. In order to meet the requirements of environmental protection engineering construction, the dust impurities in the yellow phosphorus flue gas need to be filtered and treated.

[0003] The prior art guides the yellow phosphorus flue gas into a filtering treatment system through a conveying pipeline. In order to reduce the formation of vortex and turbulent flow, the conveying pipeline often adopts a circular cross-section. The water vapor in the yellow phosphorus flue gas will condense to form liquid water droplets during the conveying process, resulting in a dewing phenomenon.

[0004] Therefore, the prior art adds a modifier such as talcum powder into the conveying pipeline through a nozzle to adsorb the water vapor and reduce the adhesion of the dust impurities, so as to alleviate the plugging phenomenon caused by the adhesion of the dust impurities to the inner wall of the conveying pipeline. The specific mode is that a plurality of groups of annular nozzles are arranged along the axial direction of the inside or outside of the conveying pipeline, each group is staggered by a certain angle (such as 60°), a spiral jet trajectory is formed, and the talcum powder sprayed by the nozzles fully contacts the flue gas.

[0005] When the diameter of the conveying pipeline is larger and the discharge speed is increased, there is a significant difference in the flow rate between the yellow phosphorus flue gas located in the central region and the edge region of the conveying pipeline, resulting in a stratification phenomenon. Therefore, at a certain section, the talcum powder sprayed by the nozzles at the outer periphery into the yellow phosphorus flue gas in the conveying pipeline is taken away by a large amount of talcum powder in the yellow phosphorus flue gas located in the outer edge region with a slow flow rate and fully contacts the talcum powder, while the talcum powder in the yellow phosphorus flue gas located in the central region with a fast flow rate can only take away a small amount of talcum powder and cannot fully contact the talcum powder. Therefore, when the flow rate distribution of the yellow phosphorus flue gas in the conveying pipeline is different, the mode of spraying talcum powder from the outside to the inside of the prior art will significantly affect the contact effect of the talcum powder and the yellow phosphorus flue gas, and further reduce the adsorption of the talcum powder on the yellow phosphorus flue gas and the subsequent anti-blocking effect. SUMMARY

[0006] The present application provides a yellow phosphorus flue gas filtering treatment device for environmental protection engineering and a treatment method thereof, and solves the problem that the mode of spraying talcum powder from the outside to the inside of the prior art will significantly affect the contact effect of the talcum powder and the yellow phosphorus flue gas, and further reduce the adsorption of the talcum powder on the yellow phosphorus flue gas and the subsequent anti-blocking effect.

[0007] In order to achieve the above object, the present application provides the following technical scheme: A yellow phosphorus flue gas filtering treatment device for environmental protection engineering, comprising a filtering and dust removing mechanism, a conveying pipeline is installed at the input end of the filtering and dust removing mechanism, and an adsorption mechanism is installed on the conveying pipeline; a plug partition mechanism is installed inside the adsorption mechanism, the plug partition mechanism is arranged along the diameter direction of the conveying pipeline, the plug partition mechanism comprises a first plug partition seat, a plug partition plate is installed on the first plug partition seat, powder injection ports are formed on both sides of the plug partition plate, a plurality of groups of the powder injection ports are respectively arranged corresponding to the middle region and the edge region inside the conveying pipeline, and a communication pipe is connected to the first plug partition seat; a center chamber is arranged in the middle of the filtering box, the plug partition plate is movably arranged inside the center chamber, inlets and outlets are respectively arranged at both ends of the center chamber, and the conveying pipeline is communicated with the center chamber through the outlet; the yellow phosphorus flue gas inside the conveying pipeline enters the center chamber through the inlet, and the adsorption medium is respectively injected into the middle region and the edge region inside the conveying pipeline through the powder injection ports of the plug partition plate.

[0008] In a preferred embodiment, a communication chamber is formed in the inside of the first plug partition seat, the plug partition plate comprises a middle plate, bias plates are fixedly arranged at both ends of the middle plate, powder injection cavities are formed in the inside of the middle plate and the bias plates, and the powder injection cavities are communicated with the corresponding powder injection ports.

[0009] In a preferred embodiment, the middle plate corresponds to the middle region of the conveying pipeline, the bias plates correspond to the edge region of the conveying pipeline, the width of the end of the plug partition plate away from the first plug partition seat is smaller than the width of the other end, and the width of the middle plate is greater than the width of the bias plates.

[0010] In a preferred embodiment, an inclination angle adjusting assembly is arranged on the first plug partition seat, a flexible connecting part is arranged at the end of the plug partition plate away from the first plug partition seat, and the inclination angle adjusting assembly is used for adjusting the inclination angles of both sides of the plug partition plate.

[0011] In a preferred embodiment, the inclination angle adjusting assembly comprises connecting pieces, two groups of the connecting pieces are arranged corresponding to both sides of the plug partition plate, the connecting pieces are fixedly connected with the inner wall of the plug partition plate, a driving part is arranged between the two groups of the connecting pieces, the driving part is used for driving the two groups of the connecting pieces to move close to or away from each other, a communication port is formed in the end of the first plug partition seat close to the plug partition plate, sliding grooves are formed on both sides of the communication port of the first plug partition seat, and the connecting pieces penetrate into the inside of the sliding grooves.

[0012] In a preferred embodiment, a guide part is arranged at the end of the first plug partition seat corresponding to the plug partition plate, and the guide part is used for providing a guiding effect when the inclination angles of both sides of the plug partition plate are adjusted, a sealing part is connected between the first plug partition seat and the plug partition plate, and the sealing part is used for sealing the connecting seam between the first plug partition seat and the plug partition plate when the inclination angles of both sides of the plug partition plate are adjusted.

[0013] In a preferred implementation, a cleaning mechanism is installed on the filter box, the cleaning mechanism is located on one side of the inlet, the filter box is provided with a receiving chamber corresponding to the cleaning mechanism, a linear actuator two is installed on the receiving chamber, and the output end of the linear actuator two is fixedly connected with the cleaning mechanism.

[0014] In a preferred implementation, the cleaning mechanism comprises a cleaning seat, a cleaning cloth is installed inside the cleaning seat, backflush spray plates are fixedly arranged on the inner walls of the two sides of the cleaning seat, a gas pump box is installed on the cleaning mechanism, and the gas pump box is in communication with the backflush spray plates, a surface detection assembly is installed on one end of the cleaning seat corresponding to the backflush spray plates, a fixed frame is installed on the detection end of the surface detection assembly, and rolling members are arranged to roll inside the fixed frame.

[0015] In a preferred implementation, a shielding mechanism is installed on the cleaning seat, the shielding mechanism comprises a mounting frame, a movable block is slidably arranged on the mounting frame, a linear actuator three is arranged at one end of the mounting frame, the linear actuator three is fixedly installed on the filter box, the output end of the linear actuator three is fixedly connected with the movable block, a guide opening is formed in the mounting frame, a side column is fixedly arranged on the movable block and penetrates through the guide opening, a baffle is fixedly arranged on the side column, and the end of the baffle away from the side column is fixedly connected with the mounting frame.

[0016] The application also provides a treatment method of the yellow phosphorus flue gas filtering and treatment device for environmental protection engineering, which comprises the following steps:

[0017] S1: The yellow phosphorus flue gas is conveyed to the filtering and dust removing mechanism through a conveying pipeline, and the adsorption mechanism is used to adsorb and treat the yellow phosphorus flue gas in the conveying pipeline;

[0018] S2: The adsorption medium is sprayed out through the powder spraying opening of the adsorption mechanism, and the adsorption medium adsorbs the easy condensation substances in the yellow phosphorus flue gas in the central chamber to complete the adsorption treatment;

[0019] S3: The shielding mechanism is opened, the cleaning seat covers the insertion plate inside, and the cleaning cloth is used to clean the surfaces on the two sides of the insertion plate;

[0020] S4: The surface detection assembly is used to detect the abrasion degree of the surfaces on the two sides of the insertion plate, and the surface detection assembly rolls along the surface of the insertion plate through the rolling members on the fixed frame during the process of retracting the cleaning seat into the receiving chamber;

[0021] S5: The filtering and dust removing mechanism is used to filter and treat the yellow phosphorus flue gas after the adsorption treatment.

[0022] S6: The sulfur and CO are recovered through the recovery mechanism, and the yellow phosphorus flue gas after the treatment and recovery is discharged through the discharge pipeline.

[0023] The present application has the beneficial effects that:

[0024] The present application can directly inject adsorption medium to the corresponding area by setting the insertion plate, and when the diameter of the conveying pipeline is larger and the discharge speed is increased, the yellow phosphorus flue gas layering phenomenon will not be affected, sufficient adsorption medium is provided for the yellow phosphorus flue gas in the edge area and the center area, the yellow phosphorus flue gas is fully contacted with the adsorption medium, and then the adsorption and subsequent anti-blocking effect of the talcum powder on the yellow phosphorus flue gas are improved, so that the environmental protection engineering construction requirements are met.

[0025] The present application drives the cleaning seat to extend from the inside of the storage chamber through the linear driver II, covers the insertion plate of the first insertion seat in the cleaning mechanism, and cleans the surfaces on both sides of the insertion plate through the cleaning wiper.

[0026] The present application retracts the cleaning seat to the inside of the storage chamber, and in the moving process, the surface detection assembly rolls along the surface of the insertion plate through the rolling piece on the fixed frame, when the surface detection assembly detects that the pressure change amplitude exceeds the set range, it indicates that the surface of the insertion plate has been worn out and cannot be used, and it is suggested to replace the part. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0028] Figure 2 It is a schematic diagram of the front structure of the adsorption mechanism of the present application.

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the adsorption mechanism of the present application.

[0030] Figure 4 It is a schematic diagram of the front structure of the first insertion seat of the present application.

[0031] Figure 5 It is a schematic diagram of the structure of the insertion plate of the present application.

[0032] Figure 6 It is a schematic diagram of the position of the powder injection port of the present application.

[0033] Figure 7 It is a schematic diagram of the cross-sectional structure of the first insertion seat of the present application.

[0034] Figure 8 It is a schematic diagram of the structure of the flexible connection block of the present application.

[0035] Figure 9 It is a schematic diagram of the cross-sectional structure of the cleaning mechanism of the present application.

[0036] Figure 10 It is a schematic diagram of the front structure of the fixed frame of the present application.

[0037] Figure 11 Fig. 1 is a schematic view of the shielding mechanism structure according to the present application.

[0038] Figure 12 Fig. 2 is a schematic view of the shielding plate structure according to the present application.

[0039] Figure 13 Fig. 3 is a schematic view of the processing method according to the present application.

[0040] The reference signs are as follows: 1, filtering and dust removing mechanism; 2, conveying pipeline; 3, adsorption mechanism; 31, filtering box; 32, linear driver one; 33, filtering chamber; 331, central chamber; 332, inlet; 333, outlet; 34, storage chamber; 341, linear driver two; 4, recovery mechanism; 5, discharge pipeline; 6, inserting and separating mechanism; 61, first inserting and separating seat; 611, middle communication cavity; 612, eccentric communication cavity; 613, communication port; 614, chute; 615, sliding block; 62, second inserting and separating seat; 63, inserting and separating plate; 631, middle plate; 632, eccentric plate; 633, powder spraying cavity; 634, powder spraying port; 635, guide member; 636, connecting member; 637, transmission member; 638, rotary driver; 639, soft connecting block; 64, indicating block; 65, communication pipe; 7, cleaning mechanism; 71, cleaning seat; 72, cleaning wiper; 73, backflushing spray plate; 74, air pump box; 75, surface detection assembly; 751, fixed frame; 752, rolling member; 8, shielding mechanism; 81, mounting frame; 82, movable block; 821, side column; 83, linear driver three; 84, guide port; 85, shielding plate. DETAILED DESCRIPTION

[0041] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0042] The accompanying drawings are referred to in the description of the present application. Figures 1 to 6The utility model provides a kind of yellow phosphorus flue gas filtering treatment device for environmental protection engineering, including filtering dust removal mechanism 1, the input end of filtering dust removal mechanism 1 is equipped with conveying pipeline 2, conveying pipeline 2 is equipped with adsorption mechanism 3;Adsorption mechanism 3 is equipped with insert division mechanism 6 in the inside, insert division mechanism 6 is arranged along the diameter direction of conveying pipeline 2, insert division mechanism 6 includes first insert seat 61, first insert seat 61 is equipped with insert plate 63, insert plate 63 is equipped with powder spraying port 634 on both sides, and powder spraying port 634 is set with several groups respectively corresponding the middle part region and edge region in the inside of conveying pipeline 2, first insert seat 61 is connected with communicating pipe 65;The middle part of filter box 31 is equipped with central chamber 331, insert plate 63 is movably arranged in the inside of central chamber 331, and the both ends of central chamber 331 are equipped with inlet 332 and outlet 333 respectively, and conveying pipeline 2 is communicated with central chamber 331 by outlet 333;Yellow phosphorus flue gas in the inside of conveying pipeline 2 enters the inside of central chamber 331 by inlet 332, and adsorbing medium is respectively sprayed into the middle part region and edge region in the inside of conveying pipeline 2 by the powder spraying port 634 of insert plate 63.

[0043] Need to be explained, filtering dust removal mechanism 1 uses the existing technology's belt dust collector equipment, or in its output end is matched with spray tower equipment, and the belt dust collector includes three-stage dust removal device, wherein first-stage mechanical dust removal device uses gravity settling chamber or inertial dust collector, removes the dust of larger particle in yellow phosphorus flue gas;Second-stage mechanical dust removal device is cyclone dust collector, separates the dust of medium particle size in yellow phosphorus flue gas by using centrifugal force, further improves dust removal efficiency;Third-stage filtering dust removal device is used as core equipment, adopts filter core of metal or ceramic material, removes the dust of micrometer in yellow phosphorus flue gas by physical interception, so that yellow phosphorus flue gas dust content is reduced to below 10-20 mg / m3;The belt dust collector uses continuous running filter belt (such as synthetic fiber or metal wire mesh), and dust is intercepted by the way of surface filtration and deep filtration, by which, yellow phosphorus flue gas passes through belt dust collector equipment, and more than 80% of coarse particle dust is removed;When the output end of belt dust collector equipment is matched with spray tower equipment, yellow phosphorus flue gas enters the lower part of spray tower, and is countercurrently contacted with water curtain from top to bottom, and temperature is reduced from 200~300 DEG C to 60~80 DEG C, promotes gaseous pollutant to condense, and basic spray liquid and acidic gas (HF, H2S, H3PO4 etc.) in flue gas occur neutralization reaction, and soluble salt (such as NaF, Na2S, Na3PO4) is generated, and is discharged with waste water, and yellow phosphorus flue gas is further removed by spraying dephosphorizing agent (such as oxidizing agent) in spray tower, and filtering treatment is completed, as yellow phosphorus flue gas contains easy dewing material (such as water vapor), dust is easy to be humidified and caked on filter belt of belt dust collector equipment, so that filter belt is blocked, so the utility model carries out the following treatment before yellow phosphorus flue gas is passed into belt dust collector equipment;Refer to the attached Figure 2 And 4In the perspective of the plug-in plate 63, any one of the diametric directions of the conveying pipeline 2 can be set, such as vertical setting, horizontal setting and 45-degree inclined setting, and the plug-in plate 63 can realize its own function, and the conveying pipeline 2 is equally divided into three sections according to the diameter size, which are a head section, a middle section and a tail section. The middle section of the conveying pipeline 2 is a circular area corresponding to the middle area of the conveying pipeline 2, and the head section and the tail section of the conveying pipeline 2 are annular areas corresponding to the edge area of the conveying pipeline 2. The plug-in plate 63 is provided with at least two groups of spray ports 634 corresponding to the middle area and the edge area. The connecting pipe 65 is connected to an external feeding device for providing the plug-in plate 63 with adsorbing medium, and the adsorbing medium is talc powder. The inside of the filter chamber 33 is provided with a filter chamber 33, which includes a center chamber 331, an inlet 332 and an outlet 333, and the center chamber 331 is connected between the inlet 332 and the outlet 333.

[0044] In the embodiment, the implementation scenario is as follows: the conveying pipeline 2 is connected to the exhaust end of yellow phosphorus production, the generated yellow phosphorus flue gas enters the inside of the conveying pipeline 2, when passing through the adsorbing mechanism 3, the yellow phosphorus flue gas first enters the inside of the center chamber 331 from the inlet 332, then the adsorbing medium is introduced into the inside of the plug-in plate 63 through the connecting pipe 65, then the adsorbing medium is sprayed out through the spray port 634, the spray ports 634 located in different layers directly inject the adsorbing medium into the corresponding area, then the adsorbing medium in the center chamber 331 adsorbs the easy-to-condense substances in the yellow phosphorus flue gas, thereby reducing the dust adhesion of the yellow phosphorus flue gas, and finally the yellow phosphorus flue gas is discharged through the outlet 333. The adsorbing mechanism 3 is arranged along the conveying direction of the conveying pipeline 2, and has the effect of multiple adsorption. The yellow phosphorus flue gas enters the filter dust removal mechanism 1 for the above-mentioned dust removal and filtration treatment, and then the sulfur and CO are recovered through the recovery mechanism 4. The yellow phosphorus flue gas after treatment and recovery is discharged through the discharge pipeline 5. The plug-in plate 63 is arranged to directly inject the adsorbing medium into the corresponding area. When the diameter of the conveying pipeline is larger and the discharge speed is increased, the yellow phosphorus flue gas layering phenomenon is not affected, and sufficient adsorbing medium is provided for the yellow phosphorus flue gas in the edge area and the center area, so that the yellow phosphorus flue gas is fully contacted with the adsorbing medium, thereby improving the adsorption of talc powder on the yellow phosphorus flue gas and the subsequent anti-blocking effect, thereby meeting the requirements of environmental protection engineering construction.

[0045] Further, the first plug-in seat 61 is internally provided with a communication chamber, the plug-in plate 63 includes a middle plate 631, both ends of the middle plate 631 are fixedly provided with a bias plate 632, the inside of the middle plate 631 and the bias plate 632 is provided with a spray powder cavity 633, and the spray powder cavity 633 is communicated with the corresponding spray port 634.

[0046] It should be noted that according to the diameter of the conveying pipe 2, the partial plate 632 can be divided into more segments, and the connecting chambers include the middle connecting chamber 611 and the partial connecting chamber 612, and the partial connecting chamber 612 is provided in two groups, the two groups of partial connecting chambers 612 are separated by the middle connecting chamber 611, the two groups of partial connecting chambers 612 are respectively connected with the powder spraying chambers 633 of the two groups of partial plates 632, the middle connecting chamber 611 is connected with the powder spraying chamber 633 of the middle plate 631, and the connecting pipe 65 is provided in three groups corresponding to the middle connecting chamber 611 and the partial connecting chamber 612.

[0047] Further, the middle plate 631 corresponds to the middle region of the conveying pipe 2, the partial plate 632 corresponds to the edge region of the conveying pipe 2, the width of the one end of the insertion plate 63 away from the first insertion seat 61 is smaller than the width of the other end, and the width of the middle plate 631 is greater than the width of the partial plate 632.

[0048] It should be noted that the one end of the insertion plate 63 away from the first insertion seat 61 can be any one of a pointed shape, an arc shape and a planar shape, that is, the shape of the insertion plate 63 is any one of a triangular shape, a circular arc shape and a trapezoidal shape, and the narrower end is arranged close to the gas inlet end of the conveying pipe 2, and the Figure 5 In the example, the insertion plate 63 is triangular, and the insertion plate 63 can also be trapezoidal, in which case the yellow phosphorus flue gas contacts the inclined surface of the insertion plate 63, or the insertion plate 63 can be circular arc-shaped, in which case the yellow phosphorus flue gas contacts the arc surface of the insertion plate 63, the purpose being to reduce the resistance to the yellow phosphorus flue gas, the width of the middle plate 631 is slightly larger, which can slightly reduce the flow rate of the yellow phosphorus flue gas in the central region, so that the contact time of the yellow phosphorus flue gas with the adsorption medium is increased, and the width of the partial plate 632 is slightly smaller, which can minimize the influence on the flow rate of the yellow phosphorus flue gas in the edge region, so as to balance the flow rates of the yellow phosphorus flue gas in the central region and the edge region at the insertion plate 63, and make the yellow phosphorus flue gas uniformly contact the adsorption medium.

[0049] Further, the first insertion seat 61 is provided with an inclination angle adjusting assembly, and the one end of the insertion plate 63 away from the first insertion seat 61 is provided with a soft connecting component, and the inclination angle adjusting assembly is used to adjust the inclination angles of the two sides of the insertion plate 63.

[0050] It should be noted that according to the flow rate of the yellow phosphorus flue gas inside the conveying pipe 2, the width of the insertion plate 63 can be adjusted in work through the width adjusting assembly, and the soft connecting component includes a soft connecting block 639, the soft connecting block 639 is made of rubber material, and when the inclination angles of the two sides of the insertion plate 63 change, the soft connecting block 639 provides soft connection, and the shape of the soft connecting block 639 is adapted to the shape of the one end of the insertion plate 63 away from the first insertion seat 61, such as the Figure 8 When the insertion plate 63 is triangular, the soft connecting block 639 is a V-shaped component.

[0051] Furthermore, the tilt adjustment assembly includes a connector 636. Two sets of connectors 636 are provided on both sides of the connector plate 63, and the connectors 636 are fixedly connected to the inner wall of the connector plate 63. A driving component is provided between the two sets of connectors 636, and the driving component is used to drive the two sets of connectors 636 to move closer or further apart. A communication port 613 is provided at one end of the first connector 61 near the connector plate 63. Slide grooves 614 are provided on both sides of the first connector 61 corresponding to the communication port 613, and the connector 636 passes through the interior of the slide groove 614.

[0052] It should be noted that the connector 636 is an L-shaped component. When the driving component uses a cylinder, two sets of cylinders are installed inside the second insert seat 62. The output ends of the two sets of cylinders are respectively connected to the two sets of connectors 636, thereby driving the two sets of connectors 636 to move closer or further apart. The driving component uses an attached... Figure 7 In the structure, two sets of connecting parts 636 are respectively fixed with transmission parts 637, and the two sets of transmission parts 637 are vertically aligned and spaced apart by a certain distance. The opposite sides of the two sets of transmission parts 637 are provided with racks. The second insertion seat 62 is equipped with a drive motor, and the output end of the drive motor is equipped with a gear. The gear is located between the two sets of transmission parts 637, and the gear meshes with the racks on the two sets of transmission parts 637. When the rotary driver 638 drives the gear to rotate, the meshing transmission between the gear and the rack causes the two sets of transmission parts 637 to drive the two sets of connecting parts 636 to move in opposite directions, thereby increasing or decreasing the tilt angle of the two sides of the insertion plate 63. In order to avoid the transmission parts 637 and the rotary driver 638 blocking the communication port 613, the transmission parts 637 and the rotary driver 638 are located below or above the first insertion seat 61, and are offset from the position of the communication port 613.

[0053] Furthermore, the first connector 61 is provided with a guide component at one end corresponding to the connector plate 63, and the guide component is used to provide guidance when the tilt angles of the two sides of the connector plate 63 are adjusted. A sealing component is connected between the first connector 61 and the connector plate 63, and the sealing component is used to seal the connection seam between the first connector 61 and the connector plate 63 when the tilt angles of the two sides of the connector plate 63 are adjusted.

[0054] It should be noted that the guide part includes a guide piece 635 and a sliding block 615, the guide piece 635 is movably penetrated in the inside of the closing part, the setting mode one of the guide part: the guide piece 635 is fixedly arranged at one end of the insertion plate 63 close to the first insertion seat 61, the sliding block 615 is arranged at the guide piece 635 corresponding to the first insertion seat 61, and one end of the guide piece 635 is slidably arranged in the inside of the sliding block 615; the setting mode two of the guide part: the guide piece 635 is fixed with the first insertion seat 61, and the sliding block 615 is arranged at one end of the insertion plate 63; the sliding block 615 and the guide piece 635 are arranged in a T shape, so that the connection strength of the first insertion seat 61 and the insertion plate 63 is improved; the closing part includes a rotary driver 638, when the rotary driver 638 is an elastic member such as a rubber pad, referring to the attached Figure 7 , the two ends of the rotary driver 638 are fixed with the first insertion seat 61 and the insertion plate 63 respectively, when the insertion plate 63 moves, the rotary driver 638 will be elastically deformed and form an inclined surface, so that the yellow phosphorus flue gas can pass through the rotary driver 638 along the inclined surface; when the rotary driver 638 is a rigid member such as a metal sheet, when the metal sheet is fixed with the first insertion seat 61 and the metal sheet is slidably connected with the insertion plate 63, when the insertion plate 63 moves, the metal sheet will slide close to the surface of the metal sheet; when the metal sheet is fixed with the insertion plate 63 and the metal sheet is slidably connected with the first insertion seat 61, when the insertion plate 63 moves, the metal sheet will slide along the surface of the first insertion seat 61.

[0055] Because there are particulate dusts in the yellow phosphorus flue gas, and the two side surfaces of the insertion plate 63 are in long-time contact with the yellow phosphorus flue gas, the particulate dusts continuously impact the side surface of the insertion plate 63, after long-time work, the side surface of the insertion plate 63 will be abraded, when the side surface of the insertion plate 63 is abraded to form a pit, the particulate dusts will be easily accumulated in the pit, which will not only affect the powder spraying of the powder spraying port 634, but also increase the resistance to the yellow phosphorus flue gas.

[0056] Referring to the description attached Figures 7 to 10 In order to solve the above problems, the application provides the following scheme: the cleaning mechanism 7 is installed on the filter box 31, the cleaning mechanism 7 is located at one side of the inlet 332, the filter box 31 is provided with a receiving chamber 34 corresponding to the cleaning mechanism 7, the linear driver two 341 is installed on the receiving chamber 34, the output end of the linear driver two 341 is fixedly connected with the cleaning mechanism 7, and the linear driver one 32 is installed on the filter box 31, and the output end of the linear driver one 32 is fixedly connected with the first insertion seat 61.

[0057] It should be noted that the linear driver one 32 and the linear driver two 341 are linear guides or screws, which are respectively used for driving the linear movement of the first insertion seat 61 and the cleaning mechanism 7.

[0058] Further, the cleaning mechanism 7 comprises a cleaning seat 71, a cleaning cloth 72 is mounted inside the cleaning seat 71, and a backflush spray plate 73 is fixedly arranged on the inner wall of the two sides of the cleaning seat 71. A gas pump box 74 is mounted on the cleaning mechanism 7 and is in communication with the backflush spray plate 73. A surface detection assembly 75 is mounted on one end of the cleaning seat 71 corresponding to the backflush spray plate 73. A fixed frame 751 is mounted on the detection end of the surface detection assembly 75, and a rolling member 752 is arranged to roll inside the fixed frame 751.

[0059] It should be noted that one end of the cleaning seat 71 is provided with an opening, the shape of the cleaning cloth 72 is matched with the shape of the insertion plate 63, and the cleaning cloth 72 wraps the insertion plate 63. The cleaning cloth 72 is made of breathable material, such as a sponge wiping member. The backflush spray plate 73 is provided with a gas blowing hole. The surface detection assembly 75 is a pressure sensor of the prior art. The fixed frame 751 is divided into three parts corresponding to the middle plate 631 and the offset plate 632. The rolling member 752 rolls along the surface of the middle plate 631 and the offset plate 632. The position of the rolling member 752 is staggered with the position of the powder spraying hole 634. The insertion plate 63 is provided with an indicating block 64, and the cleaning mechanism 7 is provided with a proximity switch. When the insertion plate 63 corresponds to the cleaning seat 71, the proximity switch senses the indicating block 64 to provide an indication.

[0060] In the embodiment, the implementation scenario is specifically: when the inclination angle of the side surface of the middle plate 631 is greater than the inclination angle of the side surface of the offset plate 632, the high-speed yellow phosphorus flue gas in the central region can carry away the granular dust on the surface of the middle plate 631. The inclination angle of the offset plate 632 is small, which facilitates the yellow phosphorus flue gas in the edge region to carry away the granular dust on the surface of the offset plate 632. The first insertion seat 61 is provided with a second insertion seat 62 of the same structure on one side, and the first insertion seat 61 and the second insertion seat 62 are fixed by a connecting rod. When the first insertion seat 61 corresponds to the inlet 332, the second insertion seat 62 corresponds to the cleaning mechanism 7. Two groups are arranged on the two sides of the inlet 332 corresponding to the receiving chamber 34 and the cleaning mechanism 7. For details, refer to the description of the first insertion seat 61. Figure 3When the first insertion seat 61 needs to be cleaned and detected, the linear actuator one 32 drives the first insertion seat 61 and the second insertion seat 62 to move to the left, and the second insertion seat 62 is moved to the inlet 332, and the first insertion seat 61 corresponds to one side of the cleaning mechanism 7. The linear actuator two 341 drives the cleaning seat 71 to extend from the inside of the storage chamber 34, and the insertion plate 63 of the first insertion seat 61 is covered in the cleaning mechanism 7. The cleaning wiper 72 cleans the surfaces of the insertion plate 63 on both sides. The cleaning seat 71 is retracted into the storage chamber 34. In the moving process, the surface detection assembly 75 rolls along the surface of the insertion plate 63 through the rolling piece 752 on the fixed frame 751. When the surface detection assembly 75 detects that the pressure change amplitude exceeds the set range, it indicates that the surface of the insertion plate 63 has been worn out and cannot be used. It is recommended to replace the parts. The air pump box 74 blows air to the cleaning wiper 72 through the backflushing plate 73 for backflushing cleaning. The whole process is convenient for cleaning the granular dust attached to the surfaces of the insertion plate 63 on both sides, detecting the wear state of the surfaces of the insertion plate 63, and avoiding the surfaces of the insertion plate 63 from being worn out and accumulating granular dust, thereby ensuring the powder spraying effect of the powder spraying port 634.

[0061] Referring to the description of the accompanying drawings Figure 11 and Figure 12 The cleaning seat 71 is provided with a shielding mechanism 8. The shielding mechanism 8 comprises a mounting frame 81, a movable block 82 slidingly arranged on the mounting frame 81, a linear actuator three 83 arranged at one end of the mounting frame 81, and the linear actuator three 83 fixedly arranged on the filter box 31. The output end of the linear actuator three 83 is fixedly connected with the movable block 82. A guide opening 84 is formed in the inside of the mounting frame 81. A side column 821 is fixedly arranged on the movable block 82 and penetrates through the inside of the guide opening 84. A baffle 85 is fixedly arranged on the side column 821 and fixedly connected with the mounting frame 81 at the end away from the side column 821.

[0062] It should be noted that the center chamber 331 corresponds to the main cavity at the inlet 332, and the center chamber 331 corresponds to the auxiliary cavity at the storage chamber 34. When the first insertion seat 61 in the main cavity is working, the second insertion seat 62 is located in the auxiliary cavity. The shielding mechanism 8 is arranged above the opening of the cleaning seat 71. The baffle 85 is a folding baffle, like the folding door component in the prior art. The linear actuator three 83 is staggered with the linear actuator one 32. For example, the installation height of the linear actuator three 83 is greater than that of the linear actuator one 32. The side column 821 and the baffle 85 are slidingly arranged in the inside of the opening of the cleaning seat 71.

[0063] In the embodiment, the specific implementation scene is that: the movable block 82 is driven by the linear driver three 83 to move along the direction of the mounting frame 81, the baffle 85 is unfolded by the side column 821, the opening of the cleaning seat 71 is blocked, the yellow phosphorus flue gas is prevented from entering the inside of the cleaning seat 71, when cleaning, the yellow phosphorus flue gas is stopped from being introduced into the conveying pipeline 2, the side column 821 drives the baffle 85 to be folded, and the opening of the cleaning seat 71 is opened.

[0064] Working principle:

[0065] I. When the yellow phosphorus flue gas enters the inside of the conveying pipeline 2 and passes through the adsorption mechanism 3, the yellow phosphorus flue gas first enters the inside of the center chamber 331 from the inlet 332, the adsorption medium is sprayed through the powder spraying port 634, and the powder spraying ports 634 located at different layers directly throw the adsorption medium into corresponding areas.

[0066] II. The baffle 85 is folded by the side column 821, and the main cavity and the auxiliary cavity are communicated.

[0067] III. The first insertion seat 61 is driven by the linear driver one 32 to move from the main cavity to the auxiliary cavity, the cleaning seat 71 is driven by the linear driver two 341 to extend from the inside of the storage chamber 34, the insertion plate 63 of the first insertion seat 61 is covered in the inside of the cleaning mechanism 7, and the surfaces on both sides of the insertion plate 63 are cleaned by the cleaning wiper 72.

[0068] IV. The cleaning seat 71 is withdrawn into the inside of the storage chamber 34, in the process of moving, the surface detection assembly 75 rolls along the surface of the insertion plate 63 through the rolling piece 752 on the fixed frame 751 to detect abrasion.

[0069] V. The air pump box 74 blows air to the cleaning wiper 72 through the backflushing spray plate 73 to perform backflushing cleaning.

[0070] With reference to the drawings in the specification Figure 13 The application also provides a treatment method of the yellow phosphorus flue gas filtering treatment device for environmental protection engineering, and the treatment method comprises the following steps:

[0071] S1: The yellow phosphorus flue gas is conveyed to the filtering and dust removing mechanism 1 through the conveying pipeline 2, and the yellow phosphorus flue gas in the conveying pipeline 2 is treated by adsorption through the adsorption mechanism 3;

[0072] S2: The adsorption medium is sprayed through the powder spraying port 634 of the adsorption mechanism 3, the adsorption medium adsorbs the easy condensate in the yellow phosphorus flue gas in the center chamber 331, and the adsorption treatment is completed;

[0073] S3: The insertion plate 63 is covered in the inside by the cleaning seat 71 by opening the shielding mechanism 8, and the surfaces on both sides of the insertion plate 63 are cleaned by the cleaning wiper 72;

[0074] S4: The surface detection assembly 75 detects the abrasion degree of the two sides of the distribution board 63, and the surface detection assembly 75 detects the abrasion degree by rolling along the surface of the distribution board 63 through the rolling element 752 on the fixed frame 751 during the process of retracting the cleaning seat 71 into the storage chamber 34.

[0075] S5: The filtered dust removal mechanism 1 filters and removes dust from the yellow phosphorus flue gas after adsorption treatment.

[0076] S6: The recovery mechanism 4 recovers sulfur and CO, and the yellow phosphorus flue gas after treatment and recovery is discharged through the discharge pipeline 5.

[0077] It should be noted that the existing sulfur recovery and CO recovery device is installed in the recovery mechanism 4, which is not described here. The yellow phosphorus flue gas is cooled and dusted by water washing and alkali washing, and the fluorides, part of the elemental phosphorus and hydrogen sulfide and other acidic gases are removed, and then the wet desulfurization is carried out to recover the sulfur product. The tail gas after desulfurization is subjected to catalytic oxidation and desulfurization, and the tail gas after desulfurization is subjected to catalytic hydrolysis to hydrolyze organic sulfur into hydrogen sulfide, and then enters the deep purification process of fine desulfurization. Finally, high-purity carbon monoxide is obtained by pressure swing adsorption purification, and the high-purity CO is recovered as a chemical raw material to create economic benefits. Through sulfur recovery, sulfur emission is reduced, acid rain pollution is avoided, carbon chemical product raw gas requirements are met, and the above-mentioned method can effectively treat yellow phosphorus flue gas. The finally discharged gas meets the environmental protection emission requirements, has no visible dust and no odor, reduces environmental pollution, realizes resource recycling, and meets the requirements of environmental protection engineering construction.

[0078] The above examples only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. A yellow phosphorus flue gas filtration and treatment device for environmental protection engineering, characterized in that: Including filter dust removal mechanism (1), the input end of filter dust removal mechanism (1) is installed with conveying pipeline (2), conveying pipeline (2) is installed with adsorption mechanism (3) on it; The inside of adsorption mechanism (3) is installed with insert division mechanism (6), insert division mechanism (6) is arranged along the diameter direction of conveying pipeline (2), insert division mechanism (6) includes first insert seat (61), first insert seat (61) is installed with insert plate (63), both sides of insert plate (63) are provided with powder injection port (634), and powder injection port (634) is provided with several groups corresponding to the middle region and the edge region inside conveying pipeline (2) respectively, the first insert seat (61) is connected with the communicating pipe (65); The adsorption mechanism (3) includes a filter box (31), the middle part of the filter box (31) is provided with a central chamber (331), the insert plate (63) is movably arranged in the central chamber (331), and the central chamber (331) is provided with an inlet (332) and an outlet (333) at both ends, the conveying pipeline (2) is communicated with the central chamber (331) through the outlet (333). The middle region and the edge region inside the conveying pipeline (2) are respectively sprayed with adsorption medium through the powder injection port (634) of the insert plate (63).

2. The yellow phosphorus flue gas filtering and treating device for environmental protection engineering according to claim 1, characterized in that: The inside of the first insert seat (61) is provided with a communication chamber, the insert plate (63) includes a middle plate (631), both ends of the middle plate (631) are fixedly provided with a bias plate (632), the inside of the middle plate (631) and the bias plate (632) are provided with a powder injection cavity (633), and the powder injection cavity (633) is communicated with the corresponding powder injection port (634).

3. The yellow phosphorus flue gas filtering and treating device for environmental protection engineering according to claim 2, characterized in that: The middle plate (631) corresponds to the middle region of the conveying pipeline (2), the bias plate (632) corresponds to the edge region of the conveying pipeline (2), the width of the end of the insert plate (63) away from the first insert seat (61) is less than the width of the other end, and the width of the middle plate (631) is greater than the width of the bias plate (632).

4. The yellow phosphorus flue gas filtering and treating device for environmental protection engineering according to claim 3, characterized in that: The first insert seat (61) is provided with an inclination adjusting assembly, and the end of the insert plate (63) away from the first insert seat (61) is provided with a flexible connecting component, the inclination adjusting assembly is used for adjusting the inclination angle of both sides of the insert plate (63).

5. The yellow phosphorus flue gas filtering and treating device for environmental protection engineering according to claim 4, characterized in that: The inclination adjusting assembly includes a connecting piece (636), the connecting piece (636) is provided with two groups corresponding to both sides of the insert plate (63), and the connecting piece (636) is fixedly connected with the inner wall of the insert plate (63), a driving component is arranged between the two groups of connecting pieces (636), and the driving component is used for driving the two groups of connecting pieces (636) to move close to or away from each other, the first insert seat (61) is provided with a communication port (613) at the end close to the insert plate (63), the first insert seat (61) is provided with a sliding groove (614) at both sides corresponding to the communication port (613), and the connecting piece (636) penetrates the inside of the sliding groove (614).

6. The yellow phosphorus flue gas filtering and treating device for environmental protection engineering according to claim 5, characterized in that: The first insertion seat (61) is provided with a guide component at one end of the insertion board (63), and the guide component is used to provide a guide function when the inclination of the two sides of the insertion board (63) is adjusted. A sealing component is connected between the first insertion seat (61) and the insertion board (63), and the sealing component is used to seal the connection joint between the first insertion seat (61) and the insertion board (63) when the inclination of the two sides of the insertion board (63) is adjusted.

7. The yellow phosphorus flue gas filtering and treating device for environmental protection engineering according to claim 6, characterized in that: The cleaning mechanism (7) is located on one side of the inlet (332), and the filter box (31) is provided with a receiving chamber (34) corresponding to the cleaning mechanism (7). A linear actuator two (341) is installed on the receiving chamber (34), and the output end of the linear actuator two (341) is fixedly connected with the cleaning mechanism (7). A linear actuator one (32) is installed on the filter box (31), and the output end of the linear actuator one (32) is fixedly connected with the first insertion seat (61).

8. The yellow phosphorus flue gas filtering and treating device for environmental protection engineering according to claim 7, characterized in that: The cleaning mechanism (7) includes a cleaning seat (71), and the cleaning seat (71) is internally provided with a cleaning cloth (72). The two side inner walls of the cleaning seat (71) are fixedly provided with backflushing spray plates (73). A gas pump box (74) is installed on the cleaning mechanism (7), and the gas pump box (74) is in communication with the backflushing spray plates (73). A surface detection assembly (75) is installed on one end of the cleaning seat (71) corresponding to the backflushing spray plates (73). The detection end of the surface detection assembly (75) is provided with a fixed frame (751), and the inside of the fixed frame (751) is rollingly provided with a rolling piece (752).

9. The yellow phosphorus flue gas filtering and treating device for environmental protection engineering according to claim 8, characterized in that: The cleaning seat (71) is provided with a shielding mechanism (8). The shielding mechanism (8) includes a mounting frame (81), and the mounting frame (81) is slidingly provided with a movable block (82). One end of the mounting frame (81) is provided with a linear actuator three (83), and the linear actuator three (83) is fixedly installed on the filter box (31). The output end of the linear actuator three (83) is fixedly connected with the movable block (82). The inside of the mounting frame (81) is provided with a guide opening (84). The movable block (82) is fixedly provided with a side column (821), and the side column (821) penetrates the inside of the guide opening (84). The side column (821) is fixedly provided with a baffle (85), and one end of the baffle (85) away from the side column (821) is fixedly connected with the mounting frame (81).

10. A process for filtering and treating yellow phosphorus off-gas for environmental engineering purposes, as claimed in claim 9, wherein the said process is characterized by, The method comprises the following steps: S1: The yellow phosphorus flue gas is transported to the filter dust removal mechanism (1) through the conveying pipeline (2), and the adsorption mechanism (3) performs adsorption treatment on the yellow phosphorus flue gas in the conveying pipeline (2); S2: The adsorption medium is sprayed out through the powder spraying port (634) of the adsorption mechanism (3), and the adsorption medium adsorbs the easy condensate substances in the yellow phosphorus flue gas in the central chamber (331), thereby completing the adsorption treatment; S3: The shielding mechanism (8) is opened, the insertion board (63) is covered in the cleaning seat (71), and the cleaning cloth (72) cleans the surfaces on both sides of the insertion board (63). S4: The surface detection assembly (75) detects the wear degree of the two sides of the distribution board (63). During the process of withdrawing the cleaning seat (71) into the storage chamber (34), the surface detection assembly (75) detects by rolling along the surface of the distribution board (63) through the rolling elements (752) on the fixed frame (751); S5: The filtering and dust removal mechanism (1) is used for dust removal and filtering treatment of the yellow phosphorus flue gas after adsorption treatment; S6: The recovery mechanism (4) is used for recycling sulfur and CO. The yellow phosphorus flue gas after treatment and recovery is discharged through the discharge pipeline (5).

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