Sintering waste gas treatment and purification equipment and process for composite material preparation

Abstract

The application relates to the technical field of waste gas treatment and purification, and discloses a sintering waste gas treatment and purification equipment and process for composite material preparation, wherein the sintering waste gas treatment and purification equipment for composite material preparation comprises a composite adsorption tower, a dust collector shell is arranged in the composite adsorption tower, a protective sleeve is arranged in the dust collector shell, a mounting plate is fixedly connected to the top of the protective sleeve, a circular groove is formed in the mounting plate, a plurality of downward pressing grooves are formed in the bottom wall of the circular groove in a ring array, and downward pressing springs are fixedly connected to the bottom wall of the downward pressing grooves. Water is sprayed and washed on the filter screen cover through the spray opening, the spray cleaning cylinder is heavier after the water in the spray cleaning cylinder is washed, the spray cleaning cylinder, the connecting pipe and the downward pressing block are driven to downward press the downward pressing plate through gravity, the lock hole is separated from the bolt driven by the downward pressing block, the spray opening is obliquely arranged, and a reaction force is generated during washing, so that the spray cleaning cylinder is rotated and washed.

Description

Technical Field

[0001] This invention relates to the technical field of sintering waste gas treatment and purification, and in particular to a sintering waste gas treatment and purification equipment and process for composite material preparation. Background Technology

[0002] The waste gas generated during the sintering process of ultra-high temperature non-oxide composite materials (such as SiC, Si3N4, etc.) is characterized by extremely high temperature (1500-2000℃), strong corrosiveness (containing HF / HCl), and complex pollutants (nano-dust, heavy metals, dioxins, etc.). Existing treatment technologies face significant challenges: traditional metal / polymer filter materials cannot withstand high temperatures and corrosion (e.g., filter bags burn at 260℃, and metal filter cartridges perforate after 3 months); wet processes generate secondary pollution, thus requiring the waste gas to be discharged into a sintering waste gas treatment and purification device for composite material preparation. This device cleans the waste gas from the waste gas, and a dust collector is installed at the outlet of the MOFs adsorption tower to prevent the MOFs material from generating micron-sized particles (1-10μm) due to mechanical wear or regeneration impact during long-term operation. This dust may be carried out by the airflow during microwave regeneration, requiring secondary interception to prevent it from polluting subsequent equipment or being directly emitted.

[0003] A dust collector is a device that separates dust from other particles. The performance of a dust collector is expressed by the amount of gas it can handle, the resistance loss of gas passing through the collector, and its dust removal efficiency. However, after use, impurities and dust accumulate on the filter screen of existing dust collectors, causing blockages and reduced gas flow. This affects the operation and maintenance of the dust collector, impacting its lifespan and dust collection efficiency. Cleaning devices can remove these impurities. Current flushing methods use spray nozzles to wash the filter screen. This unidirectional spraying has a limited range, failing to cover the edges, corners, and complex areas of the filter screen, leading to dirt residue or over-cleaning of the same area, resulting in significant cleaning blind spots and low efficiency. Relying solely on high-pressure water flushing can cause uneven coverage, failure to break down the adhesion layer, cleaning dead zones, and particle redeposition, resulting in poor cleaning effects. In the long run, this may reduce filtration efficiency and increase maintenance frequency. Summary of the Invention

[0004] Given the inadequacy of existing technologies in cleaning the filter screens in dust collectors, a sintering waste gas treatment and purification device for composite material preparation is proposed.

[0005] One aspect of this application provides a sintering waste gas treatment and purification device for composite material preparation, the purpose of which is to solve the problem that when cleaning the filter screen, it is only a simple rinsing, so that impurities can be cleaned by shaking the filter screen during the rinsing process.

[0006] The technical solution of this invention is as follows: a sintering waste gas treatment and purification device for composite material preparation, comprising a composite adsorption tower, wherein a dust collector shell is provided inside the composite adsorption tower, and a protective sleeve is provided inside the dust collector shell. An installation plate is fixedly connected to the top of the protective sleeve. A circular groove is formed in the installation plate, and multiple downward pressure grooves are formed in a ring array on the bottom wall of the circular groove. A downward pressure spring is fixedly connected to the bottom wall of the downward pressure groove, and a downward pressure column is fixedly connected to the top of the downward pressure spring. The downward pressure column is slidably connected within the downward pressure groove, and the tops of the multiple downward pressure columns are fixedly connected to... The device is connected to the same pressure plate, with a pressure block at the center of the pressure plate. A first water inlet hose is fixedly connected through the top of the pressure block. A locking hole is symmetrically opened on the top of the pressure block. A pin is fixedly connected to the top of the circular groove corresponding to the locking hole. A connecting pipe is rotatably connected to the bottom of the pressure block. A filter screen is fixedly connected to the lower end of the connecting pipe. A spray cleaning cylinder is fixedly connected to the bottom of the connecting pipe. Multiple spray strips are arranged in a ring on the cylinder wall of the spray cleaning cylinder. Multiple nozzles are arranged on one side of the spray strips, and the first water inlet hose is connected to the nozzle.

[0007] Furthermore, multiple buffer springs are arranged in an array on the side of the lower pressure plate. One end of each buffer spring is fixedly connected to the same first toothed ring. The first toothed ring is slidably connected to the top of the lower pressure plate. A second toothed ring is fixedly connected to the inner wall of the circular groove corresponding to the position of the first toothed ring. When the pin is disengaged from the lock hole, the first toothed ring and the second toothed ring are engaged and locked together.

[0008] Furthermore, a water storage pipe is fixedly connected to the top of the spray cleaning cylinder at the position corresponding to the connecting pipe. Multiple second water inlet hoses are provided at the bottom of the water storage pipe. One end of the second water inlet hose is connected to the top of the spray bar. A snap-fit ​​shaft is fixed on both sides of the center of the spray bar. An installation groove is opened on the surface of the spray cleaning cylinder at the position corresponding to the spray bar. The snap-fit ​​shaft is rotatably connected to the installation groove. Two symmetrical sliding rods are fixedly connected to the bottom of the water storage pipe. The bottom of the sliding rods is fixedly connected to the bottom of the spray cleaning cylinder. A fixing frame is fixedly connected to the bottom inner wall of the lower pressure block. A fixing shaft is fixedly connected to the bottom of the fixing frame. An inclined annular groove is opened on the shaft wall of the fixing shaft. A movable collar is rotatably sleeved on the outside of the fixing shaft. A movable ball is fixedly connected to the inner wall of the movable collar at the position corresponding to the annular groove. The movable ball slides in the annular groove. An installation frame is fixedly connected to the surface of the movable collar. The installation frame is slidably sleeved on the two sliding rods. A connecting arm is hinged to the surface of the installation frame through a pin. The other end of the connecting arm is hinged to the spray bar.

[0009] Furthermore, a bottom ring is fixedly connected to the bottom of the filter screen, and a circular groove is opened at the top of the base corresponding to the position of the bottom ring. The bottom ring is slidably connected in the circular groove, and a stabilizing spring is fixedly connected to the inner and outer sides of the bottom ring, respectively. The other end of the stabilizing spring is fixedly connected to the groove wall corresponding to the circular groove.

[0010] Furthermore, a base is fixedly connected to the inner bottom wall of the dust collector housing, and a protective cover is fixed to the top of the base, with the protective cover located outside the filter screen.

[0011] Furthermore, a drainage groove is provided between the protective cover and the filter screen, and the drainage groove is located at the top of the base. Drainage holes are provided on both sides of the drainage groove, and the drainage holes are connected to the drainage groove.

[0012] Furthermore, the nozzle is inclined and positioned on the side of the spray bar near the filter screen.

[0013] Furthermore, the pin is inserted into the lower pressure block and the lock hole, and the shape of the lock hole matches that of the pin.

[0014] Furthermore, the first water inlet hose is connected to the connecting pipe, the connecting pipe is connected to the water storage pipe, the water storage pipe is connected to the spray bar through the second water inlet hose, and the spray bar is connected to the nozzle.

[0015] Furthermore, the present invention also provides a method for using a sintering waste gas treatment and purification device for composite material preparation, comprising the following steps:

[0016] Step 1: Discharge the high-temperature exhaust gas from the sintering furnace at 1500~2000°C into the SiC-lined quench tower. In the SiC-lined quench tower, inject high-purity N2 (flow rate 10-20 m³ / min) into the 1500°C exhaust gas, causing the temperature to drop rapidly to below 300°C within 1 second.

[0017] Step 2: After the exhaust gas cools down to below 300°C, it is discharged into the ceramic fiber filter cartridge and then filtered through the SCR denitrification reactor to remove dust and toxic elements.

[0018] Step 3: At this point, the filtered waste gas is discharged into the composite adsorption tower. The high-performance adsorption device in the composite adsorption tower captures trace amounts of high-risk pollutants in the waste gas. A dust collector is placed at the outlet of the composite adsorption tower to remove the dust adsorbed by microwave regeneration, thus performing secondary interception.

[0019] The beneficial effects of this invention are:

[0020] 1. Water is sprayed through the nozzle to rinse the filter screen. When the spray cleaning cylinder is filled with water, it becomes heavier than before. At this time, gravity will drive the spray cleaning cylinder, connecting pipe and lower pressure block to press down the lower pressure plate, causing the lower pressure block to disengage the locking hole from the pin. Because the nozzle is set at an angle, a reaction force is generated during rinsing, which drives the spray cleaning cylinder to rotate and rinse. When the spray cleaning cylinder rotates, it drives the lower pressure block to shake, and at the same time, the spray cleaning cylinder drives the filter screen to shake and clean.

[0021] 2. As the spray cleaning cylinder causes the filter screen to sway, the connecting pipe drives the lower pressure block to squeeze the buffer spring. The buffer spring provides cushioning to prevent damage to parts caused by swaying. At the same time, the first toothed ring meshes with the second toothed ring and rotates around the second toothed ring. The meshing of the first and second toothed rings makes the swaying more stable. The first toothed ring is wrapped inside the second toothed ring, and the force generated by the meshing is transmitted inside the annular structure of the second toothed ring, forming a closed force ring. During swaying, compression is achieved.

[0022] 3. When the spray cleaning cylinder rotates, the mounting frame and the movable collar move up and down on the surface of the fixed shaft. The movable collar drives the mounting frame and the connecting arm to rotate, thereby causing the spray bar and the nozzle to move up and down reciprocally, thus rinsing the dead corners of the filter screen. Attached Figure Description

[0023] Figure 1 This is a perspective view of the sintering waste gas treatment and purification equipment for the preparation of composite materials according to the present invention;

[0024] Figure 2 This is a schematic diagram of the installation of the dust collector component in the waste gas treatment and purification equipment of the present invention;

[0025] Figure 3 This is a schematic diagram of the planed outer shell of the dust collector of the present invention;

[0026] Figure 4 This is a schematic diagram of the installation of the filter screen cover of the present invention (cut in half).

[0027] Figure 5 This is a cross-sectional view of the base of the present invention;

[0028] Figure 6 This is a schematic diagram showing the connection between the spray cleaning cylinder and the mounting block of the present invention;

[0029] Figure 7 This is a schematic diagram of the mounting block of the present invention;

[0030] Figure 8 This is a cross-sectional schematic diagram of the spray cleaning cylinder of the present invention;

[0031] In the picture:

[0032] 1. Composite adsorption tower; 2. Dust collector shell; 3. Drain hole; 4. Mounting plate; 5. Lower pressure block; 6. Lock hole; 7. Pin; 8. Buffer spring; 9. Lower pressure plate; 10. First toothed ring; 11. Second toothed ring; 12. Circular groove; 13. Lower pressure column; 14. Lower pressure spring; 15. Lower pressure groove; 16. First water inlet hose; 17. Connecting pipe; 18. Spray cleaning cylinder; 19. Water storage pipe; 20. Second water inlet hose; 21. Spray... 21. Strip; 22. Snap-fit ​​shaft; 23. Nozzle; 24. Filter screen cover; 25. Fixing bracket; 26. Fixing shaft; 27. Moving collar; 28. Annular groove; 29. ​​Moving ball; 30. Mounting bracket; 31. Connecting arm; 32. Slide rod; 33. Mounting groove; 34. Protective sleeve; 35. Base; 36. Drainage groove; 37. Bottom ring; 38. Annular groove; 39. Stabilizing spring; 40. SiC-lined quench tower; 41. Ceramic fiber filter cartridge. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Example 1, referring to Figures 1 to 8This is the first embodiment of the present invention, providing a sintering waste gas treatment and purification device for composite material preparation, including a composite adsorption tower 1. A dust collector shell 2 is installed inside the composite adsorption tower 1. A protective sleeve 34 is fitted inside the dust collector shell 2 to protect the internal parts of the dust collector, preventing wear and corrosion of the main structure. A mounting plate 4 is fixedly connected to the top of the protective sleeve 34. A circular groove 12 is formed in the mounting plate 4. A plurality of downward pressure grooves 15 are arranged in a ring array on the bottom wall of the circular groove 12, with twelve downward pressure grooves 15. Six downward pressure springs 14 are fixedly connected to the bottom wall of each downward pressure groove 15. When the downward pressure column 13 and the downward pressure springs 14 are pressed down due to gravity, the downward pressure springs 14 are compressed, causing the downward pressure column 13 to move downwards. After the downward pressure on the downward pressure column 13 is stopped, the pressure is released. The rebound force of the pressure spring 14 drives the pressure column 13 to rebound and reset. The pressure column 13 is fixedly connected to the top of the pressure spring 14. The pressure column 13 is slidably connected in the pressure groove 15. The top of multiple pressure columns 13 is fixedly connected to the same pressure plate 9. A pressure block 5 is set at the center of the pressure plate 9. The top of the pressure block 5 is fixedly connected to the first water inlet hose 16. The top of the pressure block 5 is symmetrically provided with locking holes 6. The top of the circular groove 12 is fixedly connected to the corresponding position of the locking hole 6. The locking hole 6 and the locking pin 7 are the same shape. The locking pin 7 can be inserted into the locking hole 6. The locking hole 6 and the locking pin 7 are interlocked to prevent the pressure block 5 from shaking when it is not working. The bottom of the pressure block 5 is rotatably connected to the connecting pipe 17. The lower end face of the connecting pipe 17 is fixedly connected to the filter screen 24. The filter screen 24 filters PM2.5.The filter material captures fine particulate matter such as PM10. These impurities penetrate into the filter fiber with the airflow and are captured through mechanisms such as inertial collision, electrostatic adsorption, and Brownian diffusion. The dust layer formed on the surface of the filter material has a self-filtration enhancement effect (the filter cake layer has even smaller pores). Simultaneously, during dust removal, the dust layer is detached in one piece through pulse jet cleaning or vibration. A spray cleaning cylinder 18 is fixedly connected to the bottom of the connecting pipe 17. Multiple spray strips 21 are arranged in a ring on the cylinder wall of the spray cleaning cylinder 18. One of the spray strips 21... Multiple nozzles 23 are provided on the side, and the first water inlet hose 16 is connected to the nozzles 23. By injecting water into the first water inlet hose 16, the water flows through the first water inlet hose 16, the water storage pipe 19, and the second water inlet hose 20, and then through the nozzles 23. When there is water in the water storage pipe 19, the gravity of the water flow drives the spray cleaning cylinder 18, the connecting pipe 17, and the lower pressure block 5 to press down the lower pressure plate 9, causing the lower pressure block 5 to drive the locking hole 6 to disengage from the pin 7. Because the nozzles 23 are set at an angle... The reaction force generated during rinsing causes the spray cleaning cylinder 18 to rotate and rinse. As the spray cleaning cylinder 18 rotates, it causes the lower pressure block 5 to sway, and simultaneously, it causes the filter screen 24 to sway. The first toothed ring 10 revolves around the second toothed ring 11 in an inward tangential circular motion to maintain stability. This swaying rinsing motion causes the filter screen to move, making it easier to remove dirt and resulting in a more thorough cleaning. Furthermore, the swaying rinsing motion, aided by mechanical motion, requires relatively low water pressure. While the spray cleaning cylinder 18 rotates and causes the filter screen 24 to sway, the rotating spray cleaning cylinder 18 also causes the nozzle 23 to rotate and spray. This rotating and swaying cleaning spray cleaning cylinder 18, through dynamic rinsing combined with mechanically assisted decontamination, significantly improves the cleaning effect and is more suitable for high-precision, high-pollution, high-load filtration, viscous media, or easily clogged conditions.

[0035] Reference Figure 7Multiple buffer springs 8 are arranged in an array on the side of the lower pressure plate 9. One end of each buffer spring 8 is fixedly connected to a first toothed ring 10. The buffer springs 8 absorb the impact force generated by the shaking or vibration of the equipment, prevent bolts from loosening and welds from cracking, and extend the service life of the equipment. The first toothed ring 10 is slidably connected to the top of the lower pressure plate 9. A second toothed ring 11 is fixedly connected to the inner wall of the circular groove 12 corresponding to the position of the first toothed ring 10. When the pin 7 is disengaged from the locking hole 6, the first toothed ring 10 and the second toothed ring 11 are engaged and locked together. The connecting pipe 17 drives the lower pressure block 5 to shake. When the lower pressure block 5 shakes, it drives the buffer springs 8 and the first toothed ring 10 to engage with the second toothed ring 11 and rotate around the second toothed ring 11. The engagement of the first toothed ring 10 and the second toothed ring 11 makes the shaking more stable. The first toothed ring 10 is wrapped inside the second toothed ring 11. At the same time, the compression of the buffer springs 8 provides cushioning during shaking, preventing damage to parts caused by shaking.

[0036] Reference Figures 6 to 8A water storage pipe 19 is fixedly connected to the top of the spray cleaning cylinder 18 at the position corresponding to the connecting pipe 17. Multiple second water inlet hoses 20 are provided at the bottom of the water storage pipe 19. The second water inlet hoses 20 are made of rubber hoses and can be bent to adjust the angle with the spray bar 21. One end of the second water inlet hose 20 is connected to the top of the spray bar 21. A snap-fit ​​shaft 22 is fixed on both sides of the center of the spray bar 21. The spray bar 21 is hinged in the mounting groove 33 by the snap-fit ​​shaft 22, so that the spray bar 21 can rotate and shift the angle in the mounting groove 33, so that the spray bar 21 can drive the nozzle 23 to adjust the up and down tilt angle. The surface of the spray cleaning cylinder 18 has an installation groove 33 corresponding to the position of the spray strip 21. The snap-fit ​​shaft 22 is rotatably connected in the installation groove 33. Two symmetrical sliding rods 32 are fixedly connected to the bottom of the water storage pipe 19. The sliding rods 32 limit the mounting frame 30 to prevent the mounting frame 30 and the moving collar 27 from jamming with the fixed shaft 26 when rotating. Thus, the mounting frame 30 and the moving collar 27 cannot move on the surface of the fixed shaft 26. The bottom of the sliding rod 32 is fixedly connected to the bottom of the spray cleaning cylinder 18. The bottom inner wall of the lower pressure block 5 is fixed. A fixed frame 25 is fixedly connected to the fixed frame 25, and a fixed shaft 26 is fixedly connected to the bottom of the fixed frame 25. The shaft wall of the fixed shaft 26 has an inclined annular groove 28. A movable collar 27 is rotatably sleeved on the outside of the fixed shaft 26. A movable ball 29 is fixedly connected to the inner wall of the movable collar 27 at the position corresponding to the annular groove 28. Because the movable ball 29 slides in the annular groove 28, the movable ball 29 moves along the trajectory of the annular groove 28. The annular groove 28 is an inclined ring, so that the movable ball 29 can drive the mounting frame 30 to move up and down.The movable ball 29 slides within the annular groove 28. A mounting bracket 30 is fixedly connected to the surface of the movable collar 27. The mounting bracket 30 is slidably fitted onto two sliding rods 32. A connecting arm 31 is hinged to the surface of the mounting bracket 30 via a pin. The connecting arm 31 can pull the spray bar 21 to adjust its angle. The other end of the connecting arm 31 is hinged to the spray bar 21. When the spray cleaning cylinder 18 rotates, it drives the mounting bracket 30 and the movable collar 27 to rotate around the fixed shaft 26. When the movable collar 27 drives the movable ball 29 to move within the annular groove 28 on the surface of the fixed shaft 26, the movable ball 29 reciprocates within the annular groove 28, simultaneously driving the movable collar 27 to reciprocate up and down on the surface of the fixed shaft 26. The collar 27 drives the mounting bracket 30 and connecting arm 31 to move the spray strip 21, causing the spray strip 21 to rotate around the connection point of the snap-fit ​​shaft 22. This causes the spray strip 21 and the nozzle 23 to move up and down reciprocally, thereby rinsing the dead corners of the filter screen 24. By dynamically adjusting the rinsing angle, the filter screen surface can be more comprehensively covered, effectively eliminating fixed rinsing dead corners and significantly improving cleaning uniformity and efficiency. At the same time, the multi-angle water flow impact can better break the adhesion of stubborn dirt, achieving a more thorough cleaning effect under the same water pressure conditions, reducing impurity residue, and avoiding localized excessive wear caused by fixed-angle rinsing, extending the service life of the filter screen, and improving overall filtration performance and maintenance convenience while reducing energy consumption.

[0037] Reference Figures 2 to 4 A base 35 is fixedly connected to the inner bottom wall of the dust collector housing 2. A protective sleeve 34 is fixed to the top of the base 35. The protective sleeve 34 is located outside the filter screen 24. Ventilation holes are provided on the surface of the protective sleeve 34. The protective sleeve 34 is placed outside the filter screen 24 and serves as the outer protective structure of the filter screen 24.

[0038] Reference Figures 1 to 4 A bottom ring 37 is fixedly connected to the bottom of the filter screen cover 24. A circular groove 38 is opened on the top of the base 35 corresponding to the position of the bottom ring 37. The bottom ring 37 is slidably connected in the circular groove 38. A stabilizing spring 39 is fixedly connected to the inner and outer sides of the bottom ring 37 respectively. The other end of the stabilizing spring 39 is fixedly connected to the groove wall corresponding to the circular groove 38. When the spray cleaning cylinder 18 drives the filter screen cover 24 to shake, the filter screen cover 24 drives the bottom ring 37 to shake in the circular groove 38. The stabilizing springs 39 on both sides of the bottom ring 37 provide buffering, thereby protecting the stability of the bottom of the filter screen cover 24.

[0039] Reference Figures 4 to 5A drainage groove 36 is provided between the protective cover 34 and the filter screen 24, and the drainage groove 36 is located on the top of the base 35. Drainage holes 3 are provided on both sides of the drainage groove 36, and the drainage holes 3 are connected to the drainage groove 36. After cleaning, the rinsed water will flow into the drainage groove 36, and the wastewater will flow from the drainage groove 36 into the drainage hole 3, and then be discharged through the drainage hole 3. The wastewater is discharged by the cooperation of the drainage groove 36 and the drainage hole 3.

[0040] Reference Figure 8 The nozzle 23 is inclined on the side of the spray bar 21 near the filter screen 24. The nozzle 23 is inclined at an angle of 35°. If the nozzle 23 angle is less than 30°, the spray reaction force is insufficient and the rotation speed is slow (<5 rpm). If the nozzle 23 angle is greater than 45°, the axial force is too large, causing the spray cylinder to swing unstably. The 35° tangential tilt is the golden angle of the rotary cleaning system, which has the advantages of high efficiency drive, full coverage cleaning and low maintenance cost. It is especially suitable for the harsh working conditions of high temperature exhaust gas treatment equipment.

[0041] Reference Figure 7 The pin 7 is inserted into the lower pressure block 5 and the locking hole 6. The pin 7 is composed of a cylinder and a hemispherical shape. The shape of the locking hole 6 matches that of the pin 7. The pin 7 is inserted into the locking hole 6, thereby fixing the lower pressure block 5 and the mounting plate 4. The spherical end can adapt to a certain angle deviation, so that this insertion method is suitable for high-frequency vibration scenarios and can improve reliability.

[0042] Reference Figure 6 The first water inlet hose 16 is connected to the connecting pipe 17, the connecting pipe 17 is connected to the water storage pipe 19, the water storage pipe 19 is connected to the spray bar 21 through the second water inlet hose 20, and the spray bar 21 is connected to the nozzle 23. First, water is poured into the first water inlet hose 16, and then the water enters the connecting pipe 17 through the first water inlet hose 16, and then enters the water storage pipe 19 through the connecting pipe 17. At this time, the water pressure forces the water into the spray bar 21, and then sprays it out from the nozzle 23 to rinse the filter screen 24.

[0043] The working principle of this invention is as follows: First, fine particulate matter such as PM2.5 / PM10 is captured by the filter screen 24. After the work is completed, when it is necessary to clean the filter screen 24, water can be injected into the first water inlet hose 16. The water enters the water storage pipe 19 through the first water inlet hose 16 and the connecting pipe 17. At this time, the water pressure injects water into the second water inlet hose 20 and the spray bar 21, and then sprays it through the nozzles 23 on the surface of the spray bar 21, spraying water onto the filter screen 24. The water flow washes the filter screen 24. When the nozzles 23 spray water, a reaction force is generated, which drives the spray cleaning cylinder 18 to rotate. When the water storage pipe 19 contains water, the weight of the spray cleaning cylinder 18 is much heavier than when it is empty. 18 will cause the filter screen 24 to sink, and at the same time, the connecting pipe 17 and the lower pressure block 5 will be pressed down. Then, the lower pressure block 5 will compress the lower pressure spring 14 in the lower pressure groove 15 by carrying the lower pressure plate 9 and the lower pressure column 13. When the lower pressure block 5 moves down, it will cause the locking hole 6 to disengage from the pin 7. After the lower pressure block 5 is disengaged, the centrifugal force generated by the rotation of the spray cleaning cylinder 18 will cause it to shake. At the same time, the connecting pipe 17 will cause the lower pressure block 5 to shake. When the lower pressure block 5 shakes, it will cause the buffer spring 8 and the first toothed ring 10 to mesh with the second toothed ring 11 and rotate around the second toothed ring 11. The meshing of the first toothed ring 10 and the second toothed ring 11 makes the shaking more stable. The shaking and rinsing will be used to clean the filter screen 24 simultaneously.

[0044] When the spray cleaning cylinder 18 rotates, it drives the mounting bracket 30 and the movable collar 27 to rotate around the fixed shaft 26. When the movable collar 27 drives the movable ball 29 to move in the annular groove 28 on the surface of the fixed shaft 26, the movable ball 29 moves back and forth in the annular groove 28, while simultaneously driving the movable collar 27 to move back and forth on the surface of the fixed shaft 26. The movable collar 27 drives the mounting bracket 30 and the connecting arm 31 to pull the spray strip 21 to move, so that the spray strip 21 rotates around the connection of the snap-fit ​​shaft 22, thereby causing the spray strip 21 and the nozzle 23 to move back and forth up and down, thereby rinsing the dead corners of the filter screen 24.

[0045] Example 2, refer to Figure 1-8 The second embodiment of the present invention provides a process for treating and purifying sintering waste gas in composite material preparation, which includes the following steps:

[0046] Step 1: Discharge the high-temperature exhaust gas from the sintering furnace at 1500~2000°C into the SiC-lined quench tower 40. In the SiC-lined quench tower 40, inject high-purity N2 at a flow rate of 15 m³ / min into the 1500°C exhaust gas, causing the temperature to drop rapidly to below 300°C within 1 second, thus avoiding the dioxin resynthesis temperature range (250-400°C) and preventing dust sintering.

[0047] Step 2: After the exhaust gas cools down to below 300°C, it is discharged into the ceramic fiber filter cartridge 4 and then filtered through the SCR denitrification reactor to remove poisoning elements such as As and Pb from the dust and prevent the SCR catalyst from being poisoned and deactivated.

[0048] Step 3: At this point, the filtered waste gas is discharged into the composite adsorption tower 1. The high-performance adsorption device in the composite adsorption tower 1 accurately captures trace amounts of high-risk pollutants (such as HF, heavy metals, dioxins, etc.) in the waste gas to ensure that the emission concentration is lower than the national standard. At this time, the dust collector is set at the outlet of the composite adsorption tower 1. The dust collector removes the dust adsorbed by microwave regeneration and performs secondary interception.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A sintering waste gas treatment and purification device for composite material preparation, comprising a composite adsorption tower (1), characterized in that: The composite adsorption tower (1) is equipped with a dust collector shell (2), and a protective sleeve (34) is provided inside the dust collector shell (2). The top of the protective sleeve (34) is fixedly connected to an installation plate (4). A circular groove (12) is opened in the installation plate (4). Multiple pressure grooves (15) are opened in a ring array on the bottom wall of the circular groove (12). A pressure spring (14) is fixedly connected to the bottom wall of the pressure groove (15). A pressure column (13) is fixedly connected to the top of the pressure spring (14). The pressure column (13) is slidably connected in the pressure groove (15). The top of the multiple pressure columns (13) is fixedly connected to the same pressure plate (9). A pressure plate (9) is provided at the center of the pressure plate (9). Block (5), the top of the lower pressure block (5) is fixedly connected to the first water inlet hose (16), the top of the lower pressure block (5) is symmetrically provided with lock holes (6), the top of the circular groove (12) is fixedly connected with the lock hole (6) and the bottom of the lower pressure block (5) is rotatably connected to the connecting pipe (17), the lower end face of the connecting pipe (17) is fixedly connected to the filter screen (24), the bottom of the connecting pipe (17) is fixedly connected to the spray cleaning cylinder (18), the cylinder wall of the spray cleaning cylinder (18) is provided with multiple spray strips (21) in a ring, and multiple nozzles (23) are provided on one side of the spray strips (21), and the first water inlet hose (16) is connected to the nozzles (23); Multiple buffer springs (8) are arranged in an array on the side of the lower pressure plate (9). One end of the multiple buffer springs (8) is fixedly connected to a first toothed ring (10). The first toothed ring (10) is slidably connected to the top of the lower pressure plate (9). A second toothed ring (11) is fixedly connected to the inner wall of the circular groove (12) corresponding to the position of the first toothed ring (10). When the pin (7) is disengaged from the lock hole (6), the first toothed ring (10) and the second toothed ring (11) are engaged and locked together. A water storage pipe (19) is fixedly connected to the top of the spray cleaning cylinder (18) at the position corresponding to the connecting pipe (17). Multiple second water inlet hoses (20) are provided at the bottom of the water storage pipe (19). One end of each second water inlet hose (20) is connected to the inner cavity of the spray bar (21) through the top of the spray bar (21). A snap-fit ​​shaft (22) is fixed to both sides of the center of the spray bar (21). An installation groove (33) is provided on the surface of the spray cleaning cylinder (18) at the position corresponding to the spray bar (21). The snap-fit ​​shaft (22) is rotatably connected to the installation groove (33). Two symmetrical sliding rods (32) are fixedly connected to the bottom of the water storage pipe (19). The bottom of the sliding rods (32) is fixedly connected to the bottom of the spray cleaning cylinder (18). A lower pressure block (5) A fixed frame (25) is fixedly connected to the bottom inner wall of the fixed frame (25). A fixed shaft (26) is fixedly connected to the bottom of the fixed frame (25). An inclined annular groove (28) is opened on the shaft wall of the fixed shaft (26). A movable collar (27) is rotatably sleeved on the outside of the fixed shaft (26). A movable ball (29) is fixedly connected to the inner wall of the movable collar (27) at the position corresponding to the annular groove (28). The movable ball (29) slides in the annular groove (28). A mounting frame (30) is fixedly connected to the surface of the movable collar (27). The mounting frame (30) is slidably sleeved on two slide rods (32). A connecting arm (31) is hinged to the surface of the mounting frame (30) through a pin. The other end of the connecting arm (31) is hinged to the spray bar (21). The nozzle (23) is inclined and positioned on the side of the spray bar (21) near the filter screen (24).

2. The sintering waste gas treatment and purification equipment for composite material preparation according to claim 1, characterized in that: The inner bottom wall of the dust collector housing (2) is fixedly connected to a base (35), and a protective sleeve (34) is fixed on the top of the base (35). The protective sleeve (34) is located outside the filter screen (24).

3. The sintering waste gas treatment and purification equipment for composite material preparation according to claim 2, characterized in that: The bottom of the filter screen (24) is fixedly connected to a bottom ring (37), and a circular groove (38) is opened on the top of the base (35) corresponding to the bottom ring (37). The bottom ring (37) is slidably connected in the circular groove (38). A stabilizing spring (39) is fixedly connected to the inner and outer sides of the bottom ring (37), and the other end of the stabilizing spring (39) is fixedly connected to the groove wall corresponding to the circular groove (38).

4. The sintering waste gas treatment and purification equipment for composite material preparation according to claim 2, characterized in that: A drainage groove (36) is provided between the protective sleeve (34) and the filter screen (24), and the drainage groove (36) is located on the top of the base (35). Drainage holes (3) are provided on both sides of the drainage groove (36), and the drainage holes (3) are connected to the drainage groove (36).

5. The sintering waste gas treatment and purification equipment for composite material preparation according to claim 1, characterized in that: The pin (7) is inserted into the locking hole (6) at the top of the lower pressure block (5), and the locking hole (6) matches the shape of the pin (7).

6. The sintering waste gas treatment and purification equipment for composite material preparation according to claim 1, characterized in that: The first water inlet hose (16) is connected to the connecting pipe (17), the connecting pipe (17) is connected to the water storage pipe (19), the water storage pipe (19) is connected to the spray bar (21) through the second water inlet hose (20), and the spray bar (21) is connected to the nozzle (23).

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