Dust separation processing device and method for a dryer

Abstract

The application belongs to the technical field of gas filtering equipment, and particularly relates to a dust collection and separation treatment device and method for a drying machine. The device comprises a butt joint pipe installed on a gas outlet of the drying machine, one end of the butt joint pipe is provided with a first internal thread opening, the first internal thread opening is threadedly connected with one end of an adjusting pipe, the other end of the adjusting pipe is threadedly connected with a first air outlet pipe, the device can achieve continuous monitoring effect when meeting different and complex gas drying and filtering requirements, can automatically perform dust cleaning operation to realize long-term operation of the device, can quickly switch the L-shaped air outlet pipe without disassembling the device, thereby ensuring that the drying machine can ensure the dust collection and separation treatment function for a long time without shutdown, and can ensure emergency dust cleaning and filtering effect, thereby realizing long-term operation of the device.

Description

Technical Field

[0001] This invention belongs to the technical field of gas filtration equipment, specifically relating to a dust collection and separation treatment device and method for a dryer. Background Technology

[0002] A dryer gas filtration system is a device used to remove impurities and dust from gases during the drying process of a dryer, thus preventing them from affecting subsequent operations. Its working principle involves using filter elements, filter screens, or other filter media to block solid particles in the gas, ensuring that the discharged gas is clean and dry. This type of equipment is commonly used in industrial production, particularly in the pharmaceutical, food processing, and chemical industries.

[0003] Chinese Patent Application No. 201710614139.9 discloses a static filtration device for a freeze dryer, comprising a main body. The main body includes a shell and an inlet pipe, an exhaust pipe, a return pipe, and a slag discharge pipe disposed on the shell. The inlet pipe, exhaust pipe, return pipe, and slag discharge pipe communicate with a cavity inside the shell. A filter element is installed inside the shell. The cavity inside the shell is divided into a purified gas cavity and a polluted gas cavity by the filter element. The exhaust pipe and return pipe communicate with the purified gas cavity, the inlet pipe and slag discharge pipe communicate with the polluted gas cavity, and the return pipe communicates with the exhaust pipe. A return valve is provided on the return pipe, an exhaust valve is provided at the outlet end of the exhaust pipe, and a slag discharge valve is provided on the slag discharge pipe. This patent facilitates cleaning, prevents clogging, and has advantages such as simple structure, ease of use, and good performance.

[0004] When a dryer dries gas, it is usually an intermediate step in the entire process. If dust filtration and separation are to be performed on the gas processed by the dryer at this point, the separation equipment must be fixed between the steps. If the separation equipment fails, it needs to be disassembled and repaired, requiring a shutdown, which is quite troublesome. At the same time, it is not possible to separate and process gases with different dust contents, which makes the filtration equipment prone to failure and unable to operate for a long time, and it is impossible to monitor gas anomalies. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a dust collection and separation device and method for a dryer. Through the cooperation of a first outlet pipe, a second outlet pipe, and a filter cylinder, this invention achieves continuous monitoring while meeting various complex gas drying and filtration needs, and also automatically performs dust removal to ensure long-term equipment operation. The structural design of the regulating pipe and the second outlet pipe allows for quick switching of the L-shaped outlet pipe without disassembling the equipment, ensuring the dryer can maintain its dust collection and separation function for extended periods without shutdown. Furthermore, the switching mechanism design facilitates the detection of gas dust anomalies by operators, while also ensuring emergency dust removal and filtration effectiveness, thus enabling long-term equipment operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dust collection and separation device for a dryer includes a connecting pipe installed at the air outlet of the dryer. One end of the connecting pipe has a first internal thread, which is threaded to one end of an adjusting pipe. The other end of the adjusting pipe is threaded to a first air outlet pipe. A second air outlet pipe is connected to the outer surface of the adjusting pipe, and a filter screen is slidably connected to the inner surface of the adjusting pipe. Multiple sliding rods are fixedly arranged around one end of the filter screen. A limiting ring is fixedly arranged on the inner wall of the first air outlet pipe, and multiple sliding holes are opened on the limiting ring. The sliding rods are slidably connected to the corresponding sliding holes. A return spring is sleeved on the sliding rod, and the two ends of the return spring are fixedly connected to the filter screen and the limiting ring, respectively. Multiple layers of filter blocks are fixedly installed inside the second air outlet pipe.

[0008] The outer wall of the connecting pipe is fixedly fitted with a main air cylinder, which encloses the first air outlet pipe and the second air outlet pipe. The end of the main air cylinder away from the connecting pipe is fixedly connected to an air outlet pipe. The end of the sliding rod is fixedly connected to an adjusting rod through an intermediate component, with the end of the adjusting rod passing through the main air cylinder facing outward.

[0009] Furthermore, the outer surface of the regulating pipe is fixedly provided with two abutment rings, and the outer surface of the regulating pipe is symmetrically provided with two first connecting holes, which are located between the two abutment rings; the second air outlet pipe includes a rotating ring, which is located between the two abutment rings and is rotatably connected to the regulating pipe in a sealed manner; the rotating ring is symmetrically provided with four second connecting holes, and an L-shaped air outlet pipe is fixedly connected to the second connecting holes, wherein two of the second connecting holes are connected to the first connecting holes.

[0010] Furthermore, multiple connecting magnetic plates are fixedly connected around one end of the first air outlet duct, and a sealing disk is fixedly connected to the multiple connecting magnetic plates. There is a step difference between the connecting plates and the sealing disk. A sealing magnetic ring is fixedly connected to the end of the sliding rod. When the sealing magnetic ring is connected to the connecting magnetic plate, the sealing magnetic ring and the sealing disk together seal the first air outlet duct.

[0011] Furthermore, a second sliding hole is provided in the middle of the closed disk, and a switching mechanism is slidably connected to the second sliding hole. The switching mechanism includes a first sliding rod and four second sliding rods. The first sliding rod is slidably connected to the second sliding hole of the closed disk. A plurality of L-shaped connecting rods are evenly fixed at the end of the first sliding rod, and the ends of the L-shaped connecting rods are all fixedly connected to the closed magnetic ring. The L-shaped connecting rods and the sliding rods are located on the same side of the closed magnetic ring. The first sliding rod and the four second sliding rods are fixedly connected together by a fixing rod.

[0012] An adjusting rod is fixedly connected to the middle of the fixed rod, and a through hole is opened in the middle of the end of the main air cylinder away from the connecting pipe. The adjusting rod is slidably connected to the through hole.

[0013] Furthermore, the end of the second slide rod is fixedly provided with multiple second connecting rods, and the ends of the multiple second connecting rods are fixedly connected to the second closed magnetic ring; multiple second connecting magnetic plates are fixedly provided around the inner wall of the L-shaped air outlet pipe, and the second connecting magnetic plates are fixedly connected to the second closing disc, with a step difference between the second connecting magnetic plates and the second closing disc; when the second closing magnetic ring is connected to the second connecting magnetic plate, the second closing magnetic ring and the second closing disc together close the L-shaped air outlet pipe.

[0014] Furthermore, a threaded cylinder is fixedly connected to one side of the second closed magnetic ring. The threaded cylinder is threadedly connected to the cleaning cylinder. The outer side of the cleaning cylinder is provided with a brush and abuts against the inner wall of the L-shaped air outlet pipe.

[0015] Furthermore, when the outer wall of the filter cylinder seals the first connecting hole, the second sealing magnetic ring is connected to the second connecting magnetic plate, and the sealing magnetic ring is disconnected from the connecting magnetic plate; when the outer wall of the filter cylinder does not completely cover the first connecting hole, the second sealing magnetic ring is disconnected from the second connecting magnetic plate, and the sealing magnetic ring is connected to the connecting magnetic plate.

[0016] Furthermore, a temporary filter block is provided in the middle of the filter cylinder; an installation pipe is fixedly connected to the middle of one end of the main air cylinder, and the installation pipe is fixedly sleeved on the outer wall of the connecting pipe; a cylinder cover is screwed to the other end of the main air cylinder, and the through hole and the air outlet pipe are located on the cylinder cover; the air outlet pipe has an L-shaped structure.

[0017] A threaded hole is provided in the middle of one end of the adjusting rod, and an adjusting handle is screwed onto the threaded hole.

[0018] Furthermore, both ends of the regulating pipe are provided with second external threaded openings, and one end of the first air outlet pipe is provided with a second internal threaded opening; the end of the connecting pipe away from the first internal threaded opening is provided with a third internal threaded opening; when the regulating pipe is screwed to the first air outlet pipe, the regulating pipe is flush with the inner wall of the first air outlet pipe.

[0019] This invention also claims a method for processing dust using the above-mentioned dryer dust collection and separation device, comprising the following steps:

[0020] S1. During initial installation, rotate the second air outlet pipe to connect the two L-shaped air outlet pipes with the regulating pipe.

[0021] S2. When the adjusting rod moves laterally, if it returns to its original position and stops moving laterally after a period of time, continue to observe; if the adjusting rod moves laterally back and forth, check the gas source.

[0022] S3. If the gas dust exceeds the standard in the subsequent process, rotate the adjusting rod 90° to connect the other two L-shaped air outlet pipes with the adjusting pipe, so as to quickly ensure the filtration effect without disassembly.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) This invention, through the cooperation of the first air outlet pipe, the second air outlet pipe and the filter cylinder, can achieve continuous monitoring effect while meeting different complex gas drying and filtration needs, and can also automatically perform dust removal operation to achieve long-term operation of the equipment; specifically, when the dryer dries gas with less dust, the gas processed by the dryer contains only a small amount of dust, so it can be discharged normally through the filter cylinder without causing the filter cylinder to be blocked. The gas is discharged only from the first air outlet pipe, which is the normal state and does not require deep filtration by multiple layers of filter blocks such as activated carbon, thus improving the service life of multiple layers of filter blocks; when the dryer dries gas with more dust, a large amount of dust will be filtered and accumulated by the filter cylinder, causing the filter cylinder to gradually become blocked. At this time, the pressure at the gas outlet end gradually increases due to the blockage. The large size of the filter cylinder causes it to slide and compress the return spring. At this time, the connection between the regulating pipe and the second outlet pipe is no longer blocked by the filter cylinder, allowing gas containing dust and other impurities to enter the second outlet pipe and be filtered by multiple filter blocks to achieve automatic emergency filtration. The gas is then discharged from the second outlet pipe, thus meeting the drying and filtration needs of different complex gases. Based on the extension length of the regulating rod, operators can quickly determine gas abnormalities. At the same time, when the connection between the regulating pipe and the second outlet pipe is no longer blocked by the filter cylinder, the dust on the filter cylinder will be continuously carried by the gas to the second outlet pipe, thus automatically performing a dust cleaning operation, restoring the filtration effect of the filter cylinder. This allows the equipment to continue to be monitored and used after adjusting the gas source, thereby comprehensively achieving long-term operation of the equipment.

[0025] (2) Through the structural design of the regulating pipe and the second air outlet pipe, the present invention can quickly switch the L-shaped air outlet pipe without disassembling the equipment, thereby ensuring that the dryer can maintain the dust collection and separation function for a long time without stopping the machine. Specifically, when the connecting pipe of the device is connected to the air outlet of the dryer and the air outlet pipe is connected to the pipeline of the subsequent process, the device is in a difficult-to-disassemble state. At this time, if two of the L-shaped air outlet pipes have failed and lost their filtration capacity after the device has been running for a long time, it is only necessary to rotate the regulating rod. The regulating rod drives the switching mechanism to rotate, so that the two L-shaped air outlet pipes can be quickly switched without disassembling the processing device, and the other two spare L-shaped air outlet pipes can be connected, thereby ensuring that the dryer can maintain the dust collection and separation function for a long time without stopping the machine.

[0026] (3) Through the structural design of the switching mechanism, this invention not only facilitates the detection of gas and dust abnormalities by the staff, but also ensures emergency cleaning and filtration effects, thereby enabling the equipment to operate for a long time. Specifically, when the gas and dust are abnormal, the filter screen is blocked and slid, which will drive the adjusting rod to move back and forth horizontally. Thus, the staff can quickly detect the gas and dust abnormalities by moving the adjusting rod back and forth horizontally. At the same time, if the blockage is severe, the sealing magnetic ring will eventually connect with the connecting magnetic plate under the action of the wind. Thus, the sealing magnetic ring and the sealing plate together seal the first air outlet pipe. Therefore, under the action of the sealing of the first air outlet pipe and the magnetic connection between the magnetic ring and the connecting magnetic plate, no more gas passes through the filter screen. Thus, the gas is discharged only from the second air outlet pipe. In this way, the gas with dust and harmful substances can be effectively filtered by the multi-layer filter blocks to ensure the filtration effect. At this time, the side wind of the gas will repeatedly act on the filter screen, carrying the dust on the filter screen into the second air outlet pipe, so that the filter screen is cleaned and unblocked, thus ensuring the emergency cleaning effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a dust collection and separation device for a dryer according to the present invention;

[0028] Figure 2 This is a schematic diagram of the main air cylinder structure of a dust collection and separation treatment device for a dryer according to the present invention. Figure 1 ;

[0029] Figure 3 This is a schematic diagram of the main air cylinder structure of a dust collection and separation treatment device for a dryer according to the present invention. Figure 2 ;

[0030] Figure 4 This is a schematic diagram of the internal structure of a dust collection and separation device for a dryer according to the present invention;

[0031] Figure 5 This is a schematic diagram of the dispersion structure of a dust collection and separation treatment device for a dryer according to the present invention;

[0032] Figure 6 This is a schematic cross-sectional view of a dust collection and separation device for a dryer according to the present invention.

[0033] Figure 7 This is a schematic diagram of the regulating pipe structure of a dust collection and separation treatment device for a dryer according to the present invention;

[0034] Figure 8 This is a schematic diagram of the dispersion structure of the second air outlet pipe of a dust collection and separation treatment device for a dryer according to the present invention;

[0035] Figure 9 This is a schematic diagram of the filter screen cylinder structure of a dust collection and separation device for a dryer according to the present invention;

[0036] Figure 10 This is a schematic diagram of the first air outlet pipe structure of a dust collection and separation treatment device for a dryer according to the present invention;

[0037] Figure 11 This is a schematic diagram of the switching mechanism of a dust collection and separation treatment device for a dryer according to the present invention;

[0038] Figure 12 This is a partial structural diagram of the switching mechanism of a dust collection and separation treatment device for a dryer according to the present invention.

[0039] The attached figures are labeled as follows:

[0040] Connecting pipe-100; Third internal thread port-110; First internal thread port-120; Adjusting pipe-200; First connecting hole-210; Abutment ring-220; Second external thread port-230; First air outlet pipe-300; Sealing plate-310; Connecting magnetic plate-320; Limiting ring-330; Sliding hole-340; Second internal thread port-350; Second air outlet pipe-400; Rotating ring-410; Second connecting hole-420; L-shaped air outlet pipe-430; Multi-layer filter block-440; Second sealing plate-450; Second connecting magnetic plate-460; Switching mechanism-500; First sliding rod-510; Second sliding rod-520; Fixed rod-530; Second connecting rod-540; Second sealing magnetic ring-550; Threaded cylinder-560; L-shaped connecting rod - 580; Sealed magnetic ring - 590; Filter screen cylinder - 600; Temporary filter block - 610; Sliding rod - 620; Return spring - 630; Cleaning cylinder - 700; Main air cylinder - 800; Installation pipe - 810; Cylinder cover - 820; Through hole - 821; Air outlet pipe - 830; Adjusting rod - 900; Adjusting handle - 910; Threaded hole - 911. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0042] Although the steps in this invention are arranged by reference numerals, this is not intended to limit the order of the steps. Unless the order of the steps is explicitly stated or the execution of a step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" as used herein refers to and covers any and all possible combinations of one or more of the associated listed items.

[0043] Example

[0044] like Figures 1-12 As shown, a dust collection and separation device for a dryer includes a connecting pipe 100 installed at the air outlet of the dryer. One end of the connecting pipe 100 has a first internal thread 120, which is threaded to one end of an adjusting pipe 200. The other end of the adjusting pipe 200 is screwed to a first air outlet pipe 300. A second air outlet pipe 400 is connected to the outer surface of the adjusting pipe 200, and a filter cylinder 600 is slidably connected to the inner surface of the adjusting pipe 200. Multiple sliding rods 620 are fixedly provided around one end of the first air outlet pipe 300. A limiting ring 330 is fixedly provided on the inner wall of the first air outlet pipe 300. Multiple sliding holes 340 are provided on the limiting ring 330. The sliding rods 620 are slidably connected to the corresponding sliding holes 340. A return spring 630 is sleeved on the sliding rod 620. The two ends of the return spring 630 are fixedly connected to the filter screen cylinder 600 and the limiting ring 330, respectively. A multi-layer filter block 440 is fixedly installed inside the second air outlet pipe 400.

[0045] The outer wall of the connecting pipe 100 is fixedly fitted with a main air cylinder 800, which houses the first air outlet pipe 300 and the second air outlet pipe 400. The end of the main air cylinder 800 away from the connecting pipe 100 is fixedly connected to an air outlet pipe 830. The end of the sliding rod 620 is fixedly connected to an adjusting rod 900 through an intermediate component, with the adjusting rod 900 passing through the main air cylinder 800 and facing outward.

[0046] This invention, through the cooperation of the first air outlet pipe 300, the second air outlet pipe 400, and the filter cylinder 600, can achieve continuous monitoring while meeting various complex gas drying and filtration needs, and can also automatically perform dust removal operations to ensure long-term equipment operation. Specifically, when the dryer dries gas with low dust content, the gas processed by the dryer contains only a small amount of dust, so it can pass normally through the filter cylinder 600 without causing blockage. The gas is discharged only from the first air outlet pipe 300, which is the normal state and does not require deep filtration by multiple layers of filter blocks 440 such as activated carbon, thus extending the service life of the multiple layers of filter blocks 440. When the dryer dries gas with high dust content, a large amount of dust will be filtered and accumulated in the filter cylinder 600, causing the filter cylinder 600 to gradually become blocked. At this time, due to the blockage, the pressure at the gas outlet gradually increases, causing the filter cylinder 600 to... 00 Sliding compression return spring 630; At this time, the connection between the regulating pipe 200 and the second air outlet pipe 400 is no longer blocked by the filter cylinder 600, allowing gas containing dust and other impurities to enter the second air outlet pipe 400 and be filtered by the multi-layer filter block 440 to achieve automatic emergency filtration treatment. The gas is discharged from the second air outlet pipe 400, thus meeting different complex gas drying and filtration needs. According to the extension length of the regulating rod 900, the staff can also quickly judge the gas abnormality. At the same time, when the connection between the regulating pipe 200 and the second air outlet pipe 400 is no longer blocked by the filter cylinder 600, the dust on the filter cylinder 600 will be continuously carried by the gas to the second air outlet pipe 400, thus automatically performing dust cleaning operation, restoring the filtration effect of the filter cylinder 600, and enabling the equipment to continue to be monitored and used after adjusting the gas source, thereby comprehensively achieving long-term operation of the equipment.

[0047] It is worth noting that when the dust on the filter cylinder 600 is continuously carried by the gas to the second air outlet duct 400 for automatic cleaning, the filter cylinder 600 returns to its initial state due to the unblocking process and the reset action of the return spring 630. If there is indeed an abnormality in the gas dust, the filter cylinder 600 will quickly collect dust and form a blockage, thus causing the filter cylinder 600 to reciprocate, which facilitates subsequent judgment of whether there is indeed an abnormality in the gas dust. If it is only a blockage caused by a long-term accumulation of a small amount of dust, the filter cylinder 600 will not reciprocate quickly after the first automatic cleaning, but will return to the previous temporary filtration state. The abnormality in the gas dust can be quickly detected by observing the extension length of the adjusting rod 900.

[0048] Furthermore, the outer surface of the regulating pipe 200 is fixedly provided with two abutment rings 220, and the outer surface of the regulating pipe 200 is symmetrically provided with two first connecting holes 210, which are located between the two abutment rings 220; the second air outlet pipe 400 includes a rotating ring 410, which is located between the two abutment rings 220 and is rotatably connected to the regulating pipe 200 in a sealed manner; the rotating ring 410 is symmetrically provided with four second connecting holes 420, and an L-shaped air outlet pipe 430 is fixedly connected to the second connecting holes 420, wherein two of the second connecting holes 420 are connected to the first connecting holes 210.

[0049] The present invention, through the structural design of the regulating pipe 200 and the second air outlet pipe 400, can quickly switch the L-shaped air outlet pipe 430 without disassembling the equipment, thereby ensuring that the dryer can maintain the dust collection and separation function for a long time without stopping the machine; a detailed description will follow.

[0050] It is worth noting that the multi-layer filter block 440 has a built-in filter structure and can be composed of multiple layers such as activated carbon layer and sponge layer. It is used to filter dust and other harmful impurities for deep filtration. This is a conventional choice and will not be described in detail here.

[0051] Furthermore, a plurality of connecting magnetic plates 320 are fixedly connected around one end of the first air outlet duct 300, and the plurality of connecting magnetic plates 320 are together fixedly connected to a sealing disk 310, with a step difference between the connecting plates 320 and the sealing disk 310; a sealing magnetic ring 590 is fixedly connected to the end of the sliding rod 620; when the sealing magnetic ring 590 is connected to the connecting magnetic plates 320, the sealing magnetic ring 590 and the sealing disk 310 together seal the first air outlet duct 300.

[0052] The structural design of the closed magnetic ring 590 and the connecting magnetic plate 320 helps to quickly form a seal in the first air outlet duct 300, thereby ensuring the subsequent automatic dust removal operation and effect. Only a certain amount of magnetic force is required, and it does not need to be too strong. This will be described in detail later.

[0053] Furthermore, a second sliding hole is provided in the middle of the closed disk 310, and a switching mechanism 500 is slidably connected to the second sliding hole. The switching mechanism 500 includes a first sliding rod 510 and four second sliding rods 520. The first sliding rod 510 is slidably connected to the second sliding hole of the closed disk 310. A plurality of L-shaped connecting rods 580 are evenly fixed at the end of the first sliding rod 510, and the ends of the L-shaped connecting rods 580 are all fixedly connected to the closed magnetic ring 590. The L-shaped connecting rods 580 and the sliding rods 620 are located on the same side of the closed magnetic ring 590. The first sliding rod 510 and the four second sliding rods 520 are fixedly connected together by a fixing rod 530. An adjusting rod 900 is fixedly connected in the middle of the fixing rod 530. A through hole 821 is provided in the middle of the end of the main air cylinder 800 away from the connecting pipe 100, and the adjusting rod 900 is slidably connected to the through hole 821.

[0054] The present invention, through the structural design of the switching mechanism 500, not only facilitates the detection of abnormal gas and dust by the staff, but also ensures emergency cleaning and filtration effects, thereby enabling the long-term operation of the equipment; a detailed description will follow.

[0055] Furthermore, a plurality of second connecting rods 540 are fixedly provided at the end of the second slide rod 520, and the ends of the plurality of second connecting rods 540 are fixedly connected to the second sealing magnetic ring 550; a plurality of second connecting magnetic plates 460 are fixedly provided around the inner wall of the L-shaped air outlet duct 430, and the second connecting magnetic plates 460 are fixedly connected to the second sealing disc 450, and the second connecting magnetic plates 460 and the second sealing disc 450 have a stepped difference; when the second sealing magnetic ring 550 is connected to the second connecting magnetic plate 460, the second sealing magnetic ring 550 and the second sealing disc 450 together seal the L-shaped air outlet duct 430.

[0056] When gas dust is abnormal, the filter cylinder 600 becomes clogged and slides, causing the adjusting rod 900 to move back and forth horizontally. This allows workers to quickly detect gas dust abnormalities by observing the reciprocating movement of the adjusting rod 900. Simultaneously, if the blockage is severe, the sealing magnetic ring 590 will eventually connect with the connecting magnetic plate 320 under the force of the wind. Thus, the sealing magnetic ring 590 and the sealing disc 310 together seal the first outlet duct 300. Therefore, under the combined effect of the sealing of the first outlet duct 300 and the magnetic connection between the magnetic ring 590 and the connecting magnetic plate 320, no more gas passes through the filter cylinder 600. The gas is then discharged only from the second outlet duct 400, allowing the gas containing dust and harmful substances to be effectively filtered by the multi-layer filter blocks 440, ensuring filtration efficiency. At this time, the crosswind will repeatedly act on the filter cylinder 600, carrying the dust on the filter cylinder 600 into the second outlet duct 400, thus cleaning and unblocking the filter cylinder 600 and ensuring emergency cleaning effectiveness.

[0057] It is worth noting that after the filter cylinder 600 is cleaned and unblocked, the pressure of the wind on the filter cylinder 600 decreases, and then the filter cylinder 600 is reset under the reset action of the reset spring 630.

[0058] Meanwhile, when the connecting pipe 100 of the device is connected to the air outlet of the dryer and the air outlet pipe 830 is connected to the pipeline of the subsequent process, the device is in a difficult-to-disassemble state. At this time, if two of the L-shaped air outlet pipes 430 have failed and lost their filtration capacity after the device has been running for a long time, it is only necessary to rotate the adjusting rod 900. The adjusting rod 900 drives the switching mechanism 500 to rotate, so that the two L-shaped air outlet pipes 430 can be quickly switched without disassembling the processing device, and the other two spare L-shaped air outlet pipes 430 can be connected. This ensures that the dryer can maintain the dust collection and separation function for a long time without stopping the machine.

[0059] Furthermore, a threaded cylinder 560 is fixedly connected to one side of the second closed magnetic ring 550. The threaded cylinder 560 is threadedly connected to the cleaning cylinder 700. The outer side of the cleaning cylinder 700 is equipped with a brush and abuts against the inner wall of the L-shaped air outlet duct 430. The structural design of the cleaning cylinder 700 facilitates subsequent monitoring of the usage of the multi-layer filter block 440. If the multi-layer filter block 440 fails, the surface of the cleaning cylinder 700 will become dirty with dust after reciprocating motion, thus reminding the staff to replace it.

[0060] Furthermore, when the outer wall of the filter cylinder 600 closes the first connecting hole 210, the second sealing magnetic ring 550 is connected to the second connecting magnetic plate 460, and the sealing magnetic ring 590 is disconnected from the connecting magnetic plate 320; when the outer wall of the filter cylinder 600 does not completely cover the first connecting hole 210, the second sealing magnetic ring 550 is disconnected from the second connecting magnetic plate 460, and the sealing magnetic ring 590 is connected to the connecting magnetic plate 320.

[0061] It is worth noting that when the second sealing magnetic ring 550 is connected to the second connecting magnetic plate 460, the L-shaped air outlet duct 430 is kept in a closed state, thereby avoiding the influence of external dust and impurities on the multi-layer filter block 440 and thus extending the service life of the multi-layer filter block 440.

[0062] Furthermore, a temporary filter block 610 is provided in the middle of the filter cylinder 600; an installation pipe 810 is fixedly connected to the middle of one end of the main air cylinder 800, and the installation pipe 810 is fixedly sleeved on the outer wall of the connecting pipe 100; a cylinder cover 820 is screwed to the other end of the main air cylinder 800, and the through hole 821 and the air outlet pipe 830 are located on the cylinder cover 820; the air outlet pipe 830 has an L-shaped structure.

[0063] A threaded hole 911 is provided at the middle of one end of the adjusting rod 900, and an adjusting handle 910 is screwed onto the threaded hole 911. The adjusting handle 910 facilitates the rotation of the adjusting rod 900.

[0064] It is worth noting that the filter block 610 of the present invention is made of mesh material and mainly serves as a temporary filter for filtering a small amount of dust. The size of the filter block 610 is only a schematic diagram and can be flexibly adjusted according to the actual situation. No further limitations are made here.

[0065] Furthermore, the two ends of the regulating pipe 200 are provided with second external thread ports 230, and one end of the first air outlet pipe 300 is provided with a second internal thread port 350; the end of the connecting pipe 100 away from the first internal thread port 120 is provided with a third internal thread port 110; when the regulating pipe 200 is screwed to the first air outlet pipe 300, the regulating pipe 200 is flush with the inner wall of the first air outlet pipe 300.

[0066] This invention facilitates installation and disassembly through a multi-layer threaded connection, making equipment maintenance and replacement easier.

[0067] A method for treating dust using the aforementioned dryer dust collection and separation device includes the following steps:

[0068] S1. During initial installation, rotate the second air outlet pipe 400 so that the two L-shaped air outlet pipes 430 are connected to the regulating pipe 200.

[0069] S2. When the adjusting rod 900 moves laterally, if it returns to its original position and stops moving laterally after a period of time, continue to observe; if the adjusting rod 900 moves laterally back and forth, check the gas source.

[0070] S3. If the gas dust exceeds the standard in the subsequent process, rotate the adjusting rod 900 by 90° to connect the other two L-shaped air outlet pipes 430 with the adjusting pipe 200, thereby ensuring the filtration effect quickly without disassembly.

[0071] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A dust collection and separation device for a dryer, characterized in that, The system includes a connecting pipe (100) installed at the air outlet of the dryer. One end of the connecting pipe (100) has a first internal thread (120) which is threaded to one end of an adjusting pipe (200). The other end of the adjusting pipe (200) is screwed to a first air outlet pipe (300). The outer surface of the adjusting pipe (200) is connected to a second air outlet pipe (400), and the inner surface of the adjusting pipe (200) is slidably connected to a filter screen cylinder (600). One end of the filter screen cylinder (600) is fixedly equipped with... Multiple sliding rods (620) are provided. A limiting ring (330) is fixedly provided on the inner wall of the first air outlet pipe (300). Multiple sliding holes (340) are provided on the limiting ring (330). The sliding rods (620) are slidably connected to the corresponding sliding holes (340). A return spring (630) is sleeved on the sliding rod (620). The two ends of the return spring (630) are fixedly connected to the filter screen cylinder (600) and the limiting ring (330) respectively. A multi-layer filter block (440) is fixedly installed inside the second air outlet pipe (400). A main air cylinder (800) is fixedly sleeved on the outer wall of the connecting pipe (100), and the main air cylinder (800) houses the first air outlet pipe (300) and the second air outlet pipe (400). An air outlet pipe (830) is fixedly connected to one end of the main air cylinder (800) away from the connecting pipe (100). An adjusting rod (900) is fixedly connected to the end of the sliding rod (620) through an intermediate component, and the adjusting rod (900) is set outward through one end of the main air cylinder (800). The outer surface of the regulating pipe (200) is fixedly provided with two abutment rings (220), and the outer surface of the regulating pipe (200) is symmetrically provided with two first connecting holes (210), the first connecting holes (210) being located between the two abutment rings (220); the second air outlet pipe (400) includes a rotating ring (410), the rotating ring (410) being located between the two abutment rings (220) and being rotatably and sealingly connected to the regulating pipe (200); the rotating ring (410) is symmetrically provided with four second connecting holes (420), and an L-shaped air outlet pipe (430) is fixedly connected to the second connecting hole (420), wherein two of the second connecting holes (420) are connected to the first connecting hole (210); Multiple connecting magnetic plates (320) are fixedly connected around one end of the first air outlet duct (300), and the multiple connecting magnetic plates (320) are fixedly connected to a sealing disk (310). There is a step difference between the connecting magnetic plates (320) and the sealing disk (310). The end of the sliding rod (620) is fixedly connected to a sealing magnetic ring (590). When the sealing magnetic ring (590) is connected to the connecting magnetic plate (320), the sealing magnetic ring (590) and the sealing disk (310) together seal the first air outlet duct (300). The closed disk (310) has a second sliding hole in the middle, and a switching mechanism (500) is slidably connected to the second sliding hole. The switching mechanism (500) includes a first sliding rod (510) and four second sliding rods (520). The first sliding rod (510) is slidably connected to the second sliding hole of the closed disk (310). A plurality of L-shaped connecting rods (580) are evenly fixed at the ends of the first sliding rod (510), and the ends of the L-shaped connecting rods (580) are all fixedly connected to the closed magnetic ring (590). The L-shaped connecting rods (580) and the sliding rods (620) are located on the same side of the closed magnetic ring (590). The first sliding rod (510) and the four second sliding rods (520) are fixedly connected by a fixing rod (530). An adjusting rod (900) is fixedly connected to the middle of the fixed rod (530), and a through hole (821) is opened in the middle of the end of the main air cylinder (800) away from the connecting pipe (100), and the adjusting rod (900) is slidably connected to the through hole (821). The end of the second slide rod (520) is fixedly provided with a plurality of second connecting rods (540), and the ends of the plurality of second connecting rods (540) are fixedly connected to the second closed magnetic ring (550); the inner wall of the L-shaped air outlet pipe (430) is fixedly provided with a plurality of second connecting magnetic plates (460), and the second connecting magnetic plates (460) are fixedly connected to the second closed disc (450), and the second connecting magnetic plates (460) and the second closed disc (450) have a step difference; when the second closed magnetic ring (550) is connected to the second connecting magnetic plate (460), the second closed magnetic ring (550) and the second closed disc (450) together close the L-shaped air outlet pipe (430); A temporary filter block (610) is provided in the middle of the filter cylinder (600); an installation pipe (810) is fixedly connected to the middle of one end of the main air cylinder (800), and the installation pipe (810) is fixedly sleeved on the outer wall of the connecting pipe ((100)); a cylinder cover (820) is screwed to the other end of the main air cylinder (800), and the through hole (821) and the air outlet pipe (830) are located on the cylinder cover (820); the air outlet pipe (830) has an L-shaped structure. The adjusting rod (900) has a threaded hole (911) in the middle of one end, and an adjusting handle (910) is screwed onto the threaded hole (911).

2. The dust collection and separation device for a dryer according to claim 1, characterized in that, A threaded cylinder (560) is fixedly connected to one side of the second closed magnetic ring (550). The threaded cylinder (560) is threadedly connected to the cleaning cylinder (700). The outer side of the cleaning cylinder (700) is provided with a brush and abuts against the inner wall of the L-shaped air outlet pipe (430).

3. The dust collection and separation device for a dryer according to claim 2, characterized in that, When the outer wall of the filter cylinder (600) closes the first connecting hole (210), the second closing magnetic ring (550) is connected to the second connecting magnetic plate (460), and the closing magnetic ring (590) is disconnected from the connecting magnetic plate (320); when the outer wall of the filter cylinder (600) does not completely cover the first connecting hole (210), the second closing magnetic ring (550) is disconnected from the second connecting magnetic plate (460), and the closing magnetic ring (590) is connected to the connecting magnetic plate (320).

4. The dust collection and separation device for a dryer according to claim 1, characterized in that, The two ends of the regulating pipe (200) are provided with second external threaded ports (230), and one end of the first air outlet pipe (300) is provided with a second internal threaded port (350); the end of the connecting pipe (100) away from the first internal threaded port (120) is provided with a third internal threaded port (110); when the regulating pipe (200) is screwed to the first air outlet pipe (300), the regulating pipe (200) is flush with the inner wall of the first air outlet pipe (300).

5. A method for processing dust using the dryer dust collection and separation device according to any one of claims 1 to 4, characterized in that, Includes the following steps: S1. During initial installation, rotate the second air outlet pipe (400) to connect the two L-shaped air outlet pipes (430) with the regulating pipe (200); S2. When the adjusting rod (900) moves laterally, if the adjusting rod (900) returns to its original position and stops moving laterally after a period of time, continue to observe; if the adjusting rod (900) moves laterally back and forth, check the gas source. S3. When the gas dust exceeds the standard in the subsequent process, rotate the adjusting rod (900) 90° to connect the other two L-shaped air outlet pipes (430) with the adjusting pipe (200), so as to quickly ensure the filtration effect without disassembly.

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