Smoke and dust purification equipment for silicon material drying

Abstract

The invention discloses flue gas and dust purification equipment for silicon material drying, which is applied to the field of flue gas treatment and is provided with a sealing mechanism, a dust purification assembly, a cleaning assembly, a gas inlet groove, a driving assembly, a gas inlet pipe, an exhaust pipe, a liquid injection pipe and a liquid discharge pipe. A single purification cylinder is arranged, the interior of the purification cylinder is divided into two coarse filter elements, the positions of the two coarse filter elements can be exchanged under the driving of the driving assembly, so that the coarse filter elements do not need to be replaced, a cleaning agent is injected through a liquid injection pipe to soak the coarse filter elements, the coarse filter elements are brushed by a cleaning brush roller under the driving of the driving assembly, and the cleaning efficiency is improved. And finally, clean water is used for washing and discharging the water out of the equipment, and the coarse filter element can be cleaned actively without disassembly for cleaning. And the equipment can be cleaned in the running process, and when the coarse filter element is blocked, the coarse filter element can be replaced or cleaned without being dismounted by shutdown, so that the dismounting and replacing time can be saved, the waste of the shutdown time is avoided, and the coarse filtering and purifying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of dust purification, and in particular to a flue gas dust purification device for drying silicon materials. Background Art

[0002] Silicon material refers to the raw material used to manufacture silicon wafers, which are the basic materials for semiconductor devices such as solar photovoltaic cells and integrated circuits. Silicon materials mainly include: polycrystalline silicon, monocrystalline silicon, silicon wafer slices, etc., among which polycrystalline silicon is a type of silicon material. At present, silicon materials need to be dried during the processing process. When silicon materials are dried, flue gas will be generated, and there is dust in the flue gas. In order to avoid the dust in the flue gas from escaping and polluting the environment, a refinement device with a filter element will be used to filter out the dust in the flue gas. The filter element of the purification equipment includes primary filtration and fine filtration (fine filtration is to achieve the adsorption and interception of other impurities in the flue gas through an atomization tower). The fine filter is liquid and needs to be treated twice, while the coarse filter uses a coarse filter element, which can be reused after cleaning. The coarse filter element used in the flue gas dust purification equipment for existing silicon materials is blocked during use. If you want to clean the filter element, you need to disassemble the coarse filter element, clean it, and then install it. This process will waste a lot of time, thereby affecting the efficiency of flue gas dust purification. Therefore, in order to save the time of replacing the coarse filter element and improve the efficiency of purifying the flue gas generated during the drying of silicon materials, we propose a flue gas dust purification equipment for silicon material drying. Summary of the invention

[0003] The purpose of the present invention is to provide a flue gas dust purification device for silicon material drying, which has the advantage of being able to clean the coarse filter element during the operation of the device.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: A fume dust purification device for silicon material drying, comprising a shell, a sealing mechanism is installed inside the shell, a dust purification component is installed inside the sealing mechanism, a cleaning component is provided at the bottom of the dust purification component, a driving component is installed at one end of the shell, an air intake groove is opened inside the shell, an air intake pipe and a liquid discharge pipe are connected to one side of the air intake groove, and an exhaust pipe is connected to the surface of the shell;

[0005] The surface of the shell is also connected with a liquid injection pipe.

[0006] The above technical solution is adopted, by setting a sealing mechanism, a dust purification component, a cleaning component, an air inlet groove, a driving component, an air inlet pipe, an exhaust pipe, a liquid injection pipe and a liquid discharge pipe; a single purification cylinder is set and two coarse filter elements are separated inside it, and the positions of the two coarse filter elements can be exchanged by driving with the driving component, so there is no need to replace the coarse filter element, and the cleaning agent is injected through the liquid injection pipe to soak the coarse filter element. Under the drive of the driving component, the cleaning roller brushes the coarse filter element, and finally flushes it with clean water, and then the cleaned dust is discharged from the equipment through the liquid discharge pipe, and the coarse filter element can be actively cleaned without disassembly for cleaning. Moreover, the equipment can also be cleaned during operation, so when the coarse filter element is blocked, there is no need to stop the machine to disassemble and replace or clean the coarse filter element, which can save the time of disassembling and replacing the coarse filter element, avoid the waste of downtime, and ensure the cleaning efficiency.

[0007] The present invention is further configured as follows: the sealing mechanism comprises a fixing ring 1 and a fixing ring 2, the surfaces of the fixing ring 1 and the fixing ring 2 are both fixedly sleeved with the interior of the shell, and the inner walls of the fixing ring 1 and the fixing ring 2 are fixedly connected with sealing rings.

[0008] The above technical solution is adopted, and the sealing mechanism is set to form a seal, so that the smoke cannot go downward and can only go upward through the coarse filter element and then be discharged through the exhaust pipe;

[0009] Both the fixed collar 1 and the fixed collar 2 are fixedly connected to the inner wall of the outer shell, and the seals inside them are sealingly and slidingly connected to the surface of the purification cylinder. Except that the purification cylinder can rotate, the positions inside the purification cylinder without coarse filter elements can be sealed by the seals; when a single coarse filter element is working, the sealing mechanism can ensure the sealing of the flue gas.

[0010] The present invention is further configured as follows: one side of the fixing ring 1 is fixedly connected to two connection frames, one side of the sealing ring is fixedly connected to a sealing frame, and the inner walls of the connection frame and the sealing frame are respectively fixedly connected to a sealing strip 1 and a sealing strip 2;

[0011] The two ends of the sealing strip 1 are fixedly connected to the sealing rings inside the fixing ring 1 and the fixing ring 2 respectively; the side of the sealing frame close to the sealing ring inside the fixing ring 2 is fixedly connected to the sealing ring inside the fixing ring 2;

[0012] The outer sides of the connecting frame and the sealing frame are both fixedly connected to the outer shell.

[0013] The above technical solution is adopted, through the setting of the fixed collar 1, to seal the surface and one end of the outer shell without affecting the rotation of the outer shell;

[0014] The sealing frame and the second sealing strip are used to seal between the purification cartridge and the housing. The sealing frame contacts one side of the partition plate, so that the insides of the two coarse filter elements are not connected. The second sealing strip is fixedly connected to the sealing ring inside the second fixing ring, so that no emission will occur between them.

[0015] The inner walls of the connection frame and the sealing frame are respectively fixedly connected with sealing strips 1 to seal the surface of the purification cylinder to ensure that smoke will not be emitted; and the sealing strip 1 is fixedly connected to the sealing ring inside the fixed collar 1 to ensure the sealing of the connection between the sealing ring inside the fixed collar 1 and the sealing strip 1;

[0016] During the process of coarse filtering of flue gas by a single coarse filter element, the flue gas can be prevented from emanating downward and contacting the coarse filter element at the bottom. In the cleaning state, detergent or water is injected into the interior of the housing, and the flue gas will not penetrate the detergent or water. The flue gas can only pass through the coarse filter element upward and be discharged through the exhaust pipe.

[0017] The present invention is further configured as follows: the dust purification assembly includes a purification cylinder, the upper surface and the lower surface of the purification cylinder are fixedly connected to a coarse filter element, the interior of the purification cylinder is fixedly sleeved with a partition plate, and the partition plate divides the two coarse filter elements into upper and lower independent filter chambers;

[0018] The inner wall of the sealing ring is in sealing and sliding contact with the surface of the purification cylinder;

[0019] The sealing strip is in sealing and sliding contact with the surface of the purification cylinder on one side thereof close to the purification cylinder;

[0020] The side of the second sealing strip close to the purification cylinder is in sealing and sliding contact with the surface of the purification cylinder.

[0021] The above technical solution is adopted to coarsely filter the dust in the flue gas generated when the silicon material is dried by setting the dust purification component.

[0022] First, coarse filter elements are set on the upper and lower surfaces of the purification cylinder, and a partition plate is set between the two coarse filter elements to separate the two coarse filter elements into two spaces for coarse filtering of dust in the flue gas. The coarse filter space corresponding to the air inlet groove is currently in use, while the other coarse filter space is in a clean state or not in use due to the separation of the fixed ring, the sealing mechanism and the sealing ring, and the partition plate.

[0023] The present invention is further configured as follows: the cleaning assembly comprises a cleaning hair roller, the interior of the cleaning hair roller is fixedly sleeved with a connecting rod, the connecting rod is rotatably connected to the interior of the fixing collar 1 and the fixing collar 2 respectively through a waterproof sealing bearing, and the surface of the connecting rod is also rotatably connected to the housing through a waterproof sealing bearing;

[0024] The surface of the cleaning wool roller is in contact with the coarse filter element.

[0025] The above technical scheme is adopted, through the setting of the cleaning component, it is used to cooperate with the cleaning agent to brush and clean the coarse filter element; the bristles of the cleaning roller can penetrate the filter holes of the coarse filter element and push the impurities in the internal filter element out of the filter holes of the coarse filter element; the connecting rod is rotatably connected through the waterproof sealing bearing and the fixed ring 1, the sealing ring and the outer shell, and the cleaning agent and clean water will not leak to the outside; at the same time, the connecting rod is also connected to the pulley 2, and the output end of the driving motor rotates to drive the pulley 1 to rotate, the pulley 1 rotates through the belt transmission pulley 2, the pulley 2 can drive the connecting rod and the cleaning roller to rotate, and the rotation of the cleaning roller is more conducive to increasing the cleaning effect of the coarse filter element.

[0026] The present invention is further configured as follows: the driving component includes a driving motor, the output end of the driving motor is rotatably connected to the outer shell through a waterproof sealed bearing, the output end of the driving motor is installed with a connecting rod through a coupling, one end of the connecting rod is fixedly connected to the purification cylinder, the output end of the driving motor is fixedly sleeved with pulley 1, the pulley 1 is connected to pulley 2 through belt transmission, and the interior of pulley 2 is fixedly sleeved with the connecting rod.

[0027] The above technical solution is adopted, through the setting of the driving component, to drive the rotation of the purification cylinder, and also to drive the cleaning component to rotate; it should be noted that the rotation direction of the output end of the driving motor is controlled by the controller, and the control of the rotation direction and time of the motor output end by the controller is the current existing technology and will not be elaborated here.

[0028] Specifically, of the two coarse filter elements inside the purification cylinder, when in use, only the coarse filter element corresponding to the air inlet groove will be used to coarsely filter the dust in the flue gas generated by the drying of the silicon material, while the other coarse filter element is in contact with the cleaning wool roller; when one coarse filter element needs to be cleaned, the positions of the two coarse filter elements need to be swapped; by starting the drive motor, the output end of the drive motor can drive the connecting rod to rotate through the coupling, and the connecting rod can drive the purification cylinder to rotate, and the rotation of the purification cylinder will drive the two coarse filter elements inside it to rotate, and by swapping the positions of the two coarse filter elements, the coarse filter element originally in contact with the cleaning wool roller will correspond to the air inlet groove, and the coarse filter element originally corresponding to the air inlet groove will contact the cleaning wool roller; the coarse filter element originally in contact with the cleaning wool roller is the cleaned coarse filter element, which can directly participate in the coarse filtration of dust in the flue gas from the drying of the silicon material and intercept the coarse dust;

[0029] The coarse filter element currently in contact with the cleaning roller needs to be cleaned; by injecting the cleaning agent into the interior of the shell through the injection tube, the cleaning agent can soak the coarse filter element, so that the dust adhering to the surface of the coarse filter element is separated from the coarse filter element, or loosened, and the output end of the driving motor is controlled by the controller to continuously rotate clockwise, counterclockwise, clockwise, counterclockwise..., and the purification cylinder can rotate accordingly, and the clockwise and counterclockwise rotation time can be set in advance through the controller;

[0030] No matter it rotates clockwise or counterclockwise, the standard is that the center of the bottom of the coarse filter element in the cleaning agent reaches the connection frame position. After reaching the above position, the output end of the drive motor changes from clockwise rotation to counterclockwise rotation, and counterclockwise rotation changes to clockwise rotation. Each time, the rotation process of the coarse filter element at the top is only half, and the other half will correspond to the air intake slot, so it will not affect the coarse filtration purification of the flue gas. At the same time, the height of the cleaning agent will not reach the position of the air intake slot, so the cleaning agent will not enter the air intake slot or the air intake pipe.

[0031] During the rotation of the coarse filter element, the output end of the driving motor will also drive the pulley 1 to rotate, and the pulley 1 will drive the pulley 2 to rotate through the belt, and the pulley 2 will drive the connecting rod inside it and the cleaning roller connected to the connecting rod to rotate. The rotation of the cleaning roller can penetrate the filter holes of the coarse filter element to push out the dust and impurities blocked inside, thereby achieving the function of cleaning the coarse filter element;

[0032] When the shell is tilted, the control valve of the drain pipe is opened, and the detergent and cleaned impurities can be discharged directly through the drain pipe. Then, clean water is injected into the shell through the injection pipe to rinse the coarse filter element and the cleaning roller again. The residual dust and detergent are discharged through the drain pipe to complete the cleaning.

[0033] The present invention is further configured such that control valves are installed inside the injection pipe and the discharge pipe.

[0034] With the above technical solution, the number of control valves is two, which are used to control the internal circulation and sealing of the injection pipe and the discharge pipe respectively;

[0035] When installing the equipment, the inclination angle of the drain pipe and the shell should be at least greater than 5° (such as Figure 1 ), the function of the tilt is to facilitate the backflow of water to the drain pipe, so that the drain pipe can quickly discharge the water from the inside of the shell;

[0036] The function of the injection pipe is to introduce detergent and clean water into the interior of the housing; the detergent is introduced to soak the coarse filter element to separate the impurities coarsely filtered on the surface of the coarse filter element from the coarse filter element; the introduction of clean water is to flush the impurities separated from the coarse filter element, and when the equipment is tilted, the impurities are discharged from the interior of the housing.

[0037] In summary, the present invention has the following beneficial effects:

[0038] The present invention is provided with a sealing mechanism, a dust purification component, a cleaning component, an air inlet groove, a driving component, an air inlet pipe, an exhaust pipe, a liquid injection pipe and a liquid discharge pipe; a single purification cylinder is provided and two coarse filter elements are separated therein, and the positions of the two coarse filter elements can be exchanged by driving with the driving component, so that the coarse filter element does not need to be replaced, and a cleaning agent is injected through the liquid injection pipe to soak the coarse filter element. Under the drive of the driving component, a cleaning roller brushes the coarse filter element, and finally flushes it with clean water, and then the cleaned dust is discharged from the device through the liquid discharge pipe, so that the coarse filter element can be actively cleaned without disassembly for cleaning. Moreover, the equipment can also be cleaned during operation, so that when the coarse filter element is blocked, there is no need to stop the machine to disassemble and replace or clean the coarse filter element, which can save the time of disassembling and replacing the coarse filter element, avoid the waste of downtime, and improve the coarse filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the sealing frame, the second sealing strip, the partition plate and the purification cartridge of the present invention;

[0041] Figure 3 It is a schematic diagram of the sealing mechanism and the fixing ring of the present invention;

[0042] Figure 4 It is a schematic diagram of the corresponding positions of the air inlet groove, the air inlet pipe and the housing of the present invention;

[0043] Figure 5 This is a schematic diagram of the connection between the fixing ring 1, the sealing ring and the purification cartridge of the present invention;

[0044] Figure 6 is a side sectional view of the housing of the present invention;

[0045] Figure 7 is a schematic diagram of a drive assembly of the present invention;

[0046] Figure 8 It is a schematic diagram of the connection between the connecting rod and the fixing collar 1 and the fixing collar 2 of the present invention;

[0047] Fig. 9 It is a side view of the purification cartridge of the present invention.

[0048] Reference numerals:

[0049] 1. Shell;

[0050] 2. Sealing mechanism; 21. Fixed collar 1; 211. Connecting frame; 212. Sealing frame; 213. Sealing strip 1; 214. Sealing strip 2; 22. Fixed collar 2; 23. Sealing ring;

[0051] 3. Dust purification component; 31. Purification cartridge; 32. Coarse filter element; 33. Partition plate;

[0052] 4. Cleaning assembly; 41. Cleaning roller; 42. Connecting rod;

[0053] 5. Air intake slot;

[0054] 6. Driving assembly; 61. Driving motor; 62. Connecting rod; 63. Pulley 1; 64. Pulley 2;

[0055] 7. Intake pipe; 8. Exhaust pipe; 9. Liquid injection pipe; 10. Liquid discharge pipe. DETAILED DESCRIPTION

[0056] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0057] Embodiment 1:

[0058] refer to Figure 1-Figure 9 A fume dust purification device for drying silicon material comprises a shell 1, a sealing mechanism 2 is installed inside the shell 1, a dust purification component 3 is installed inside the sealing mechanism 2, a cleaning component 4 is installed at the bottom of the dust purification component 3, a driving component 6 is installed at one end of the shell 1, an air inlet groove 5 is opened inside the shell 1, an air inlet pipe 7 and a liquid discharge pipe 10 are connected to one side of the air inlet groove 5, an exhaust pipe 8 is connected to the surface of the shell 1; the surface of the shell 1 is also connected to a liquid injection pipe 9; by arranging the sealing mechanism 2, the dust purification component 3, the cleaning component 4, the air inlet groove 5, the driving component 6, the air inlet Air pipe 7, exhaust pipe 8, injection pipe 9 and drain pipe 10; a single purification cylinder 31 is provided and two coarse filter elements 32 are separated inside the single purification cylinder 31. The positions of the two coarse filter elements 32 can be exchanged by driving with the driving assembly 6, so there is no need to replace the coarse filter element 32. The cleaning agent is injected through the injection pipe 9 to soak the coarse filter element 32. Under the drive of the driving assembly 6, the cleaning roller 41 brushes the coarse filter element 32, and finally flushes it with clean water. The cleaned dust is discharged from the equipment through the drain pipe 10, and the coarse filter element 32 can be actively cleaned without disassembly for cleaning. Moreover, the equipment can also be cleaned during operation. Therefore, when the coarse filter element 32 is blocked, there is no need to stop the machine to disassemble and replace the coarse filter element 32 for cleaning. The time for disassembling and replacing the coarse filter element 32 can be saved, and the waste of downtime can be avoided, which improves the coarse filtration efficiency.

[0059] Furthermore, the sealing mechanism 2 includes a fixed ring 21 and a fixed ring 22, the surfaces of the fixed ring 21 and the fixed ring 22 are fixedly connected to the inside of the outer shell 1, and the inner walls of the fixed ring 21 and the fixed ring 22 are fixedly connected with a sealing ring 23; the setting of the sealing mechanism 2 is used to form a seal, so that the flue gas cannot go downward and can only go upward through the coarse filter element 32 for coarse filtration and then be discharged through the exhaust pipe 8; the fixed ring 21 and the fixed ring 22 are fixedly connected to the inner wall of the outer shell 1, and the internal seals thereof are sealed and slidably connected to the surface of the purification cylinder 31. Except that the purification cylinder 31 can be rotated, the positions inside the purification cylinder 31 without the coarse filter element 32 can be sealed by the seals; when a single coarse filter element 32 is working, the sealing mechanism 2 can ensure the sealing of the flue gas.

[0060] Furthermore, one side of the fixed collar 21 is fixedly connected to two connecting frames 211, one side of the sealing ring 23 is fixedly connected to a sealing frame 212, and the inner walls of the connecting frame 211 and the sealing frame 212 are respectively fixedly connected to sealing strips 1 213 and 214; the two ends of the sealing strip 1 213 are respectively fixedly connected to the sealing rings 23 inside the fixed collar 1 and the fixed collar 22; the side of the sealing frame 212 close to the sealing ring 23 inside the fixed collar 22 is fixedly connected to the sealing ring 23 inside the fixed collar 22; the outer sides of the connecting frame 211 and the sealing frame 212 are both fixedly connected to the outer shell 1; the setting of the fixed collar 21 is used to seal the surface and one end of the outer shell 1 without affecting the rotation of the outer shell 1; the sealing frame 212 and the sealing strip 214 are used to seal between the purification cylinder 31 and the outer shell 1, and the sealing frame 212 and the partition plate 33 The contact on one side of the two coarse filter elements 32 can prevent the interiors of the two coarse filter elements 32 from being connected; and the sealing strip 214 is fixedly connected to the sealing ring 23 inside the fixed collar 22, so there will be no emission between them; the inner walls of the connecting frame 211 and the sealing frame 212 are respectively fixedly connected with the sealing strip 1 213 to seal the surface of the purification cylinder 31 to ensure that the smoke will not be emitted; and the sealing strip 1 213 is fixedly connected to the sealing ring 23 inside the fixed collar 1 21, ensuring the sealing of the connection between the sealing ring 23 inside the fixed collar 1 21 and the sealing strip 1 213; in the process of coarse filtering of smoke by a single coarse filter element 32, the smoke can be prevented from emitting downward and contacting the coarse filter element 32 at the bottom, and in the cleaning state, detergent or clean water is injected into the interior of the housing 1, and the smoke will not penetrate the detergent or water, and the smoke can only pass through the coarse filter element 32 upward and be discharged through the exhaust pipe 8.

[0061] Furthermore, the dust purification component 3 includes a purification cylinder 31, the upper surface and the lower surface of which are fixedly connected with a coarse filter element 32, and the interior of the purification cylinder 31 is fixedly sleeved with a partition plate 33, which divides the two coarse filter elements 32 into upper and lower independent filter chambers; the inner wall of the sealing ring 23 is in sealing and sliding contact with the surface of the purification cylinder 31; the side of the sealing strip 1 213 close to the purification cylinder 31 is in sealing and sliding contact with the surface of the purification cylinder 31; the side of the sealing strip 214 close to the purification cylinder 31 is in sealing and sliding contact with the surface of the purification cylinder 31; through the setting of the dust purification component 3, it is used to coarsely filter the dust in the flue gas generated when the silicon material is dried. First, a coarse filter element 32 is set on the upper and lower surfaces of the purification cylinder 31, and a partition plate 33 is set between the two coarse filter elements 32 to separate the two coarse filter elements 32 into two spaces for coarse filtering of dust in the flue gas. The coarse filter space corresponding to the air inlet groove 5 is in the current use state, and the other coarse filter space is in a clean state or unused state under the separation of the fixed ring 21, the sealing mechanism 2 and the sealing ring 23 as well as the partition plate 33.

[0062] Furthermore, the cleaning assembly 4 includes a cleaning roller 41, the interior of which is fixedly sleeved with a connecting rod 42, which is rotatably connected to the interior of the fixing ring 1 21 and the fixing ring 2 22 through waterproof sealing bearings, and the surface of the connecting rod 42 is also rotatably connected to the housing 1 through waterproof sealing bearings; the surface of the cleaning roller 41 is in contact with the coarse filter element 32; the cleaning assembly 4 is configured to be used to brush and clean the coarse filter element 32 with a cleaning agent; the bristles of the cleaning roller 41 can penetrate the filter holes of the coarse filter element 32 to remove impurities in the internal filter element; The quality is pushed out of the filter hole of the coarse filter element 32; the connecting rod 42 is rotatably connected to the housing 1 through a waterproof sealing bearing and a fixed ring 21, a sealing ring 23, and there will be no leakage of detergent and clean water to the outside; at the same time, the connecting rod 42 is also connected to the pulley 2 64, and the output end of the driving motor 61 rotates to drive the pulley 1 63 to rotate, and the pulley 1 63 rotates through the belt drive pulley 2 64, and the pulley 2 64 can drive the connecting rod 42 and the cleaning roller 41 to rotate, and the rotation of the cleaning roller 41 is more conducive to increasing the cleaning effect of the coarse filter element 32.

[0063] Furthermore, the driving component 6 includes a driving motor 61, the output end of the driving motor 61 is rotatably connected to the outer shell 1 through a waterproof sealed bearing, the output end of the driving motor 61 is installed with a connecting rod 62 through a coupling, one end of the connecting rod 62 is fixedly connected to the purification cylinder 31, and the output end of the driving motor 61 is fixedly sleeved with a pulley 1 63, the pulley 1 63 is connected to the pulley 2 64 through a belt drive, and the interior of the pulley 2 64 is fixedly sleeved with the connecting rod 42; through the setting of the driving component 6, it is used to drive the rotation of the purification cylinder 31, and is also used to drive the cleaning component 4 to rotate; it should be noted that the rotation direction of the output end of the driving motor 61 is controlled by a controller, and the controller's control of the rotation direction and time of the motor output end is currently an existing technology and will not be elaborated here. Specifically, of the two coarse filter elements 32 inside the purification cylinder 31, only the coarse filter element 32 corresponding to the air inlet groove 5 is used to coarsely filter the dust in the smoke generated by the drying of the silicon material, while the other coarse filter element 32 is in contact with the cleaning wool roller 41; when one coarse filter element 32 needs to be cleaned, the positions of the two coarse filter elements 32 need to be swapped; the output end of the drive motor 61 can drive the connecting rod 62 to rotate through the coupling, and the connecting rod 62 can drive the purification cylinder 31 rotates, and the rotation of the purification cylinder 31 will drive the two coarse filter elements 32 inside it to rotate. By exchanging the positions of the two coarse filter elements 32, the coarse filter element 32 that was originally in contact with the cleaning wool roller 41 will correspond to the air inlet groove 5, and the coarse filter element 32 that was originally corresponding to the air inlet groove 5 will contact the cleaning wool roller 41; the coarse filter element 32 that was originally in contact with the cleaning wool roller 41 is the cleaned coarse filter element 32, which can directly participate in the coarse filtration of dust in the silicon material drying fume and intercept the coarse dust; and the coarse filter element 32 that is currently in contact with the cleaning wool roller 41 is 32 needs to be cleaned; by injecting the cleaning agent into the interior of the housing 1 through the injection pipe 9, the cleaning agent can soak the coarse filter element 32, so that the dust adhered to the surface of the coarse filter element 32 is separated from the coarse filter element 32, or loosened, and the output end of the drive motor 61 is controlled by the controller to continuously rotate clockwise, counterclockwise, clockwise, counterclockwise... clockwise, and the purification cylinder 31 can rotate accordingly, and the clockwise and counterclockwise rotation time can be set in advance by the controller; whether it is clockwise or counterclockwise rotation, the center of the bottom of the coarse filter element 32 in the cleaning agent reaches the position of the connecting frame 211 as a standard. After reaching the above position, the output end of the drive motor 61 changes from clockwise rotation to counterclockwise rotation, and counterclockwise rotation changes to clockwise rotation; each time the coarse filter element 32 at the top rotates only half, and the other half will correspond to the air inlet groove 5, so it will not affect the coarse filtration of the flue gas, and at the same time, the height of the cleaning agent will not reach the position of the air inlet groove 5, so the cleaning agent will not enter the air inlet groove 5 or the air inlet pipe 7.During the rotation of the coarse filter element 32, the output end of the driving motor 61 will also drive the pulley 1 63 to rotate, and the pulley 1 63 rotates through the belt drive pulley 2 64, and the pulley 2 64 drives the connecting rod 42 inside it and the cleaning roller 41 connected to the connecting rod 42 to rotate. The rotation of the cleaning roller 41 can penetrate the filter holes of the coarse filter element 32 to push out the dust and impurities blocked inside, thereby achieving the function of cleaning the coarse filter element 32; and when the shell 1 is in the inclined state, the control valve of the drain pipe 10 is opened, and the detergent and the cleaned impurities can be directly discharged through the drain pipe 10, and then clean water is injected into the interior of the shell 1 through the injection pipe 9 to rinse the coarse filter element 32 and the cleaning roller 41 again, and the residual dust and detergent are discharged through the drain pipe 10 to complete the cleaning.

[0064] Furthermore, control valves are installed inside the injection pipe 9 and the discharge pipe 10; the number of control valves is two, which are used to control the internal circulation and sealing of the injection pipe 9 and the discharge pipe 10 respectively; when the device is installed, the inclination angle of the discharge pipe 10 and the housing 1 is at least greater than 5° (such as Figure 1 ), the role of the tilt is to facilitate the backflow of water to the drain pipe, so that the drain pipe can quickly discharge the water from the inside of the shell; the role of the injection pipe 9 is to introduce detergent and clean water into the inside of the shell 1; the introduction of detergent is used to soak the coarse filter element 32, so that the impurities coarsely filtered on the surface of the coarse filter element 32 are separated from the coarse filter element 32; the introduction of clean water is to rinse the impurities separated from the coarse filter element 32, and when the equipment is tilted, the impurities are discharged from the inside of the shell 1.

[0065] Working principle:

[0066] Connect the air inlet pipe 7 to the silicon material drying flue, and connect the exhaust pipe 8 to the spray purification tower;

[0067] First, the flue gas enters the air intake slot 5 through the air intake pipe 7 and then enters the space at the top of the two filter spaces separated by the partition plate 33. The flue gas flows upward through the coarse filter element 32, and some large impurities are intercepted by the coarse filter element 32. Then, the flue gas enters the spray purification tower through the exhaust pipe 8 for fine filtration and is finally discharged.

[0068] The coarse filter element 32 may become clogged during long-term use. At this time, the controller can be used to control the output end of the drive motor 61 to rotate, and the output end of the drive motor 61 drives the coupling, the coupling drives the connecting rod 62 to rotate, and the connecting rod 62 drives the purification cylinder 31 to rotate. The purification cylinder 31 rotates to swap the positions of the two coarse filter elements 32 inside it, and the filtering and purification work can continue without stopping the machine for replacement.

[0069] The replaced clogged coarse filter element 32 needs to be cleaned;

[0070] When cleaning, a cleaning agent is first injected into the interior of the housing 1 through the injection pipe 9, and the dust and the coarse filter element 32 are peeled off or loosened by the corrosiveness of the cleaning agent to the dust;

[0071] Then, the controller is used to set the reciprocating rotation time of the output end of the driving motor 61, so that the output end of the driving motor 61 rotates clockwise and then switches to counterclockwise rotation, and the driving motor 61 continuously drives the purification cylinder 31 to reciprocate clockwise and counterclockwise, so that the cleaning roller 41 continuously rubs the coarse filter element 32, and the bristles on the surface of the cleaning roller 41 continuously penetrate the filter holes inside the coarse filter element 32 and push out the internal dust, so that the dust blocked inside the coarse filter element 32 can be thoroughly cleaned; at the same time, with the rotation of the output end of the driving motor 61, the output end of the driving motor 61 also drives the pulley 1 63 to rotate, and the pulley 1 63 drives the pulley 2 64 to rotate through the belt, and the pulley 2 64 can drive the connecting rod 42 and the cleaning roller 41 to rotate and clean the coarse filter element 32;

[0072] Each clockwise and counterclockwise rotation is sufficient until it reaches one quarter of the overall diameter of the purification cylinder 31;

[0073] After cleaning, the two coarse filter elements 32 are reset, the cleaning agent and the cleaned dust are discharged through the drain pipe 10, clean water is injected into the housing 1, and the above operation is repeated again to wash away the residual dust and cleaning agent. The cleaning is completed by leaving the dust and cleaning agent in the discharged clean water and the clean water, and the cleaning is waited for the next replacement and cleaning.

[0074] During the above cleaning process of the coarse filter element 32, the air inlet slot 5 will always correspond to the coarse filter element 32 to ensure the normal purification of the flue gas. Although the flue gas will enter the two coarse filter elements 32 during the cleaning process, the cleaning agent or water where the bottom coarse filter element 32 is located can also directly intercept the dust in the flue gas, and also has the effect of purifying the flue gas.

[0075] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A flue gas dust purification device for drying silicon materials, comprising a housing (1), characterized in that: A sealing mechanism (2) is installed inside the shell (1), a dust purification assembly (3) is installed inside the sealing mechanism (2), a cleaning assembly (4) is provided at the bottom of the dust purification assembly (3), a driving assembly (6) is installed at one end of the shell (1), an air intake groove (5) is provided inside the shell (1), one side of the air intake groove (5) is connected to an air intake pipe (7) and a liquid discharge pipe (10), and the surface of the shell (1) is connected to an exhaust pipe (8); The surface of the housing (1) is also connected to a liquid injection pipe (9).

2. The flue gas dust purification equipment for silicon material drying according to claim 1, characterized in that: The sealing mechanism (2) comprises a fixing ring 1 (21) and a fixing ring 2 (22), the surfaces of the fixing ring 1 (21) and the fixing ring 2 (22) being fixedly sleeved with the interior of the housing (1), and the inner walls of the fixing ring 1 (21) and the fixing ring 2 (22) being fixedly connected with a sealing ring (23).

3. The flue gas dust purification equipment for silicon material drying according to claim 2, characterized in that: One side of the fixing ring (21) is fixedly connected to two connection frames (211), one side of the sealing ring (23) is fixedly connected to a sealing frame (212), and the inner walls of the connection frame (211) and the sealing frame (212) are respectively fixedly connected to a sealing strip (213) and a sealing strip (214); The two ends of the sealing strip 1 (213) are respectively fixedly connected to the sealing rings (23) inside the fixing ring 1 (21) and the fixing ring 2 (22); the side of the sealing frame (212) close to the sealing ring (23) inside the fixing ring 2 (22) is fixedly connected to the sealing ring (23) inside the fixing ring 2 (22); The outer sides of the connection frame (211) and the sealing frame (212) are both fixedly connected to the outer shell (1).

4. The flue gas dust purification equipment for silicon material drying according to claim 3, characterized in that: The dust purification component (3) comprises a purification cylinder (31), the upper surface and the lower surface of the purification cylinder (31) are both fixedly connected to a coarse filter element (32), the interior of the purification cylinder (31) is fixedly sleeved with a partition plate (33), and the partition plate (33) divides the two coarse filter elements (32) into upper and lower independent filter chambers; The inner wall of the sealing ring (23) is in sealing sliding contact with the surface of the purification cylinder (31); The side of the sealing strip 1 (213) close to the purification cylinder (31) is in sealing and sliding contact with the surface of the purification cylinder (31); The side of the second sealing strip (214) close to the purification cylinder (31) is in sealing and sliding contact with the surface of the purification cylinder (31).

5. The flue gas dust purification equipment for silicon material drying according to claim 4, characterized in that: The cleaning assembly (4) comprises a cleaning roller (41), the interior of the cleaning roller (41) being fixedly sleeved with a connecting rod (42), the connecting rod (42) being rotationally connected to the interior of a fixing ring 1 (21) and a fixing ring 2 (22) respectively via a waterproof sealing bearing, and the surface of the connecting rod (42) being rotationally connected to the housing (1) via a waterproof sealing bearing; The surface of the cleaning wool roller (41) is in contact with the coarse filter element (32).

6. The fume dust purification equipment for silicon material drying according to claim 5, characterized in that: The driving assembly (6) comprises a driving motor (61), the output end of the driving motor (61) is rotatably connected to the housing (1) via a waterproof sealing bearing, the output end of the driving motor (61) is provided with a connecting rod (62) via a coupling, one end of the connecting rod (62) is fixedly connected to the purification cylinder (31), the output end of the driving motor (61) is fixedly sleeved with a pulley 1 (63), the pulley 1 (63) is connected to a pulley 2 (64) via a belt transmission, and the interior of the pulley 2 (64) is fixedly sleeved with the connecting rod (42).

7. The fume dust purification equipment for silicon material drying according to claim 1, characterized in that: Control valves are installed inside the liquid injection pipe (9) and the liquid discharge pipe (10).

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