Spraying type automatic centralized conveying, dedusting and filtering device

Abstract

The utility model discloses a spraying type automatic centralized conveying, ash removing and filtering device which comprises a single crystal furnace dust collecting bin, a pipeline pressure difference one-way flowing pipe and a centralized ash collecting bin, and the bottom of the single crystal furnace dust collecting bin is connected with the pipeline pressure difference one-way flowing pipe. The side edge of the top of the single crystal furnace dust collecting bin is connected with a controllable wind power centralized collecting dust falling pipe, and the controllable wind power centralized collecting dust falling pipe and the pipeline pressure difference one-way flowing pipe are both connected with a dust collecting unit type sub-bin. The spraying type automatic centralized conveying, ash removing and filtering device disclosed by the utility model is used for increasing the pulling speed, improving the quality, increasing the yield, reducing the cost and improving fire accidents of the current large-size single crystal furnace, and adopts automatic ash discharging and screw conveyor conveying to the centralized ash collecting bin by utilizing the ash collecting unit type sub-bin, so that the treatment flow of the device is accelerated; and the material treatment efficiency is improved, and long-time online operation of the dust removal device system in the negative pressure state is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal furnace dust removal and cleaning, in particular to a spray-type automatic centralized conveying dust removal and filtering device. Background Art

[0002] The centralized conveying dust removal and filtering device is a supporting equipment suitable for dismantling, cleaning, polishing and quality improvement in the control of single crystal growth process in the photovoltaic industry. It is directly installed and connected near the single crystal furnace body as a high-purity and sanitary dust removal and cleaning equipment to increase production. Under the fierce competitive pressure of the photovoltaic industry market, high quality, high efficiency and low cost, and technological automation are the main themes of future development. In addition, large-size single crystals will be an important direction for the future development of the single crystal market. It is inevitable that high manual efficiency and high yield will coexist and counteract each other. With the continuous development of science and technology, people's requirements for the manufacturing process of centralized conveying dust removal and filtering devices are also getting higher and higher.

[0003] Existing single crystal furnace dust removal and cleaning devices have certain drawbacks. In typical single crystal production workshops, the majority of dust removal is done using stand-alone bag-type pulse dust removal equipment. Due to the dispersed and numerous locations, coupled with the limited capacity and short storage cycle of independent collection bins, each piece must be manually collected and transferred to a solid waste depot daily. This collection process generates dust, which drifts and pollutes the surrounding environment, posing a health hazard. Oxides, in particular, contain a wide variety of harmful substances, including phosphorus, which can reach as high as 62.4 mg / kg. Excessive phosphorus levels can easily cause spontaneous combustion and fires. As the phosphorus content in N-type rod oxides continues to increase with subsequent production, the entire oxide collection, storage, and handling process presents significant safety risks. In addition, conductive dust containing carbon, aluminum, sodium, and iron falling onto electrical equipment can easily cause short circuits and damage the equipment. Therefore, this plan takes a comprehensive approach from the perspectives of production safety, environmental protection, occupational health, cost reduction, and efficiency improvement, first eliminating safety hazards, saving production costs, managing the environment, and improving occupational health. To this end, we propose a spray-type automatic centralized conveying and dust removal and filtration device. Utility Model Content

[0004] Technical problems solved: In response to the shortcomings of the existing technology, the utility model provides a spray-type automatic centralized conveying and dust removal and filtering device, which is used to increase the pulling speed, improve the quality, increase the output, reduce the cost, and improve the fire accidents of the current large-scale single crystal furnace. It uses the ash collection unit sub-bin to adopt automatic ash discharge and spiral conveyor to the centralized ash collection bin, which speeds up the device processing flow, improves the material processing efficiency, and ensures the long-term online operation of the ash removal device system in a negative pressure state, which can effectively solve the problems in the background technology.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a spray-type automatic centralized conveying and dust removal and filtering device, including a single crystal furnace dust body collection bin, a pipeline pressure difference one-way flow pipe and a centralized ash collection bin, the bottom of the single crystal furnace dust body collection bin is connected to the pipeline pressure difference one-way flow pipe, the top side of the single crystal furnace dust body collection bin is connected to a controllable wind power centralized dust collection pipe, the controllable wind power centralized dust collection pipe and the pipeline pressure difference one-way flow pipe are both connected to an ash collection unit sub-bin, the bottom of the ash collection unit sub-bin is connected to the centralized ash collection bin, the other end of the pipeline pressure difference one-way flow pipe is connected to an air duct, the air duct is connected and installed with a wind pressure regulating and conveying mechanism, and the top of the centralized ash collection bin is installed with a spray humidification component.

[0006] Preferably, a second discharge valve is provided at the position where the bottom of the ash collecting unit sub-bin is connected to the centralized ash collecting bin, and a second valve body drive assembly is installed on the outside of the second discharge valve. A first discharge valve is provided at the position where the pressure difference one-way flow pipe of the bottom connection pipeline of the single crystal furnace dust collection bin is connected, and a first valve body drive assembly is installed on the outside of the first discharge valve.

[0007] Preferably, the spray humidification component includes a humidifier, a humidifying tube and a spraying tube, the humidifier is connected to the humidifying tube, the bottom of the humidifying tube is connected to the spraying tube, and the humidifier sprays at the spraying tube through the humidifying tube.

[0008] Preferably, the centralized ash collection bin includes a driving machine, a screw conveyor, a discharge port, a bin body and a feed port. The driving machine drives the screw conveyor to move inside the bin body. The top of the bin body is connected to the second discharge valve through the feed port, and the bottom of the bin body is output through the discharge port.

[0009] Preferably, the wind pressure regulating and conveying mechanism includes a wind pressure regulator, an adjustable fan, a driving fan and a base, the driving fan and the adjustable fan are both installed on the upper end of the base, and the wind pressure regulator controls the output of the adjustable fan.

[0010] Preferably, the wind pressure regulating and conveying mechanism blows air into the interior of the pipeline pressure difference one-way flow tube through the air duct, and the material inside the single crystal furnace dust collection bin is blown into the interior of the ash collecting unit sub-bin through the pipeline pressure difference one-way flow tube and finally enters the interior of the centralized ash collection bin.

[0011] Beneficial effects: Compared with the existing technology, the utility model provides a spray-type automatic centralized conveying ash removal and filtering device, which has the following beneficial effects: the spray-type automatic centralized conveying ash removal and filtering device is used to increase the pulling speed, improve the quality, increase the output, reduce the cost, and improve the fire accident of the current large-scale single crystal furnace. It uses the ash collection unit sub-bin to adopt automatic ash discharge and spiral conveyor to the centralized ash collection bin, which speeds up the device processing process, improves the material processing efficiency, and ensures that the ash removal device system operates online for a long time in a negative pressure state;

[0012] Extend the dust particle treatment and filtration unit to reduce the exposure time to dust and reduce the hazards of occupational health diseases;

[0013] The ash collection unit sub-bin adopts automatic ash discharge and spiral conveyor to the centralized ash collection bin, which speeds up the device processing process and ensures that the ash removal device system can operate online for a long time under negative pressure;

[0014] Centralized ash collection and spraying degradation control in the crystal pulling process caused by the addition of a small amount of phosphorus and gallium and other elements in the presence of air (oxygen) to cause spontaneous combustion or flash explosion;

[0015] Reduce the number of bags used to hold dust oxides and particulate matter, and reduce material and labor costs;

[0016] The centralized ash conveying fully enclosed pipeline avoids the generation of dust, and the environmental hygiene and quality are maintained. The entire centralized conveying, ash removal and filtration device has a simple structure and is easy to operate. The effect of use is better than that of traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a spray-type automatic centralized conveying, dust removal and filtering device of the utility model.

[0018] Figure 2 This is a schematic structural diagram of a single crystal furnace dust collection bin in a spray-type automatic centralized conveying, dust removal and filtering device of the present invention.

[0019] Figure 3 This is a structural schematic diagram of a centralized ash collection bin in a spray-type automatic centralized ash conveying and filtering device of the utility model.

[0020] Figure 4 The utility model is a structural diagram of the wind pressure regulating and conveying mechanism in a spray-type automatic centralized conveying and dust removal and filtering device.

[0021] In the figure: 1. Air pressure regulating and conveying mechanism; 2. One-way flow pipe for differential pressure in pipeline; 3. Spraying and humidifying assembly; 4. Controllable wind power centralized dust collection pipe; 5. Centralized ash collection bin; 6. Air duct; 7. Single crystal furnace dust collection bin; 8. Ash collection unit sub-bin; 9. Second discharge valve; 10. Second valve body drive assembly; 11. First discharge valve; 12. First valve body drive assembly; 13. Feed port; 14. Humidifier; 15. Humidifying pipe; 16. Spraying pipe; 17. Bin body; 18. Screw feeder; 19. Discharge port; 20. Driving machine; 21. Air pressure regulator; 22. Adjustable fan; 23. Driving fan; 24. Base. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. If specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] like Figures 1-4As shown, a spray-type automatic centralized conveying and ash removal and filtering device includes a single crystal furnace dust body collection bin 7, a pipeline pressure difference one-way flow pipe 2 and a centralized ash collection bin 5. The bottom of the single crystal furnace dust body collection bin 7 is connected to the pipeline pressure difference one-way flow pipe 2, and the top side of the single crystal furnace dust body collection bin 7 is connected to a controllable wind power centralized dust collection pipe 4. The controllable wind power centralized dust collection pipe 4 and the pipeline pressure difference one-way flow pipe 2 are both connected to an ash collection unit sub-bin 8. The bottom of the ash collection unit sub-bin 8 is connected to the centralized ash collection bin 5, and the pipeline The other end of the pressure difference one-way flow tube 2 is connected to the air duct 6, and the air pressure regulating and conveying mechanism 1 is installed on the air duct 6. The top of the centralized ash collection bin 5 is installed with a spray humidification component 3, which is used to increase the pulling speed, improve the quality, increase the output, reduce the cost, and improve the fire accidents of the current large-scale single crystal furnace. The ash collection unit sub-bin adopts automatic ash discharge and spiral conveyor to the centralized ash collection bin, which speeds up the device processing process, improves the material processing efficiency, and ensures the long-term online operation of the ash removal device system in a negative pressure state.

[0026] Furthermore, a second discharge valve 9 is provided at the position where the bottom of the ash collecting unit sub-bin 8 is connected to the centralized ash collecting bin 5, and a second valve body drive assembly 10 is installed on the outside of the second discharge valve 9. A first discharge valve 11 is provided at the position where the pressure difference one-way flow pipe 2 of the bottom connecting pipe of the single crystal furnace dust collecting bin 7 is connected, and a first valve body drive assembly 12 is installed on the outside of the first discharge valve 11.

[0027] Furthermore, the spray humidification component 3 includes a humidifier 14 , a humidifying tube 15 and a spraying tube 16 . The humidifier 14 is connected to the humidifying tube 15 , and the bottom of the humidifying tube 15 is connected to the spraying tube 16 . The humidifier 14 sprays at the spraying tube 16 through the humidifying tube 15 .

[0028] Furthermore, the centralized ash collection bin 5 includes a driving motor 20, a screw conveyor 18, a discharge port 19, a bin body 17 and a feed port 13. The driving motor 20 drives the screw conveyor 18 to move inside the bin body 17. The top of the bin body 17 is connected to the second discharge valve 9 through the feed port 13, and the bottom of the bin body 17 is output through the discharge port 19.

[0029] Furthermore, the wind pressure regulating and conveying mechanism 1 includes a wind pressure regulator 21, an adjustable fan 22, a driving fan 23 and a base 24. The driving fan 23 and the adjustable fan 22 are both installed at the upper end of the base 24. The wind pressure regulator 21 controls the output of the adjustable fan 22.

[0030] Furthermore, the wind pressure regulating and conveying mechanism 1 blows air into the interior of the pipeline pressure difference one-way flow tube 2 through the air duct 6, and the material inside the single crystal furnace dust collection bin 7 is blown into the interior of the ash collecting unit sub-bin 8 through the pipeline pressure difference one-way flow tube 2 and finally enters the interior of the centralized ash collecting bin 5.

[0031] Overall description of the solution: Remove the separate ash collection bucket of each dust collector, and install a screw conveyor, an air lock feeder, and a jet pump at the ash outlet of each dust collector to the ash conveying pipeline respectively.

[0032] Roots blowers are installed at the front end of multiple dust collectors as the ash conveying air source. A 20m³ ash silo is built at the rear end for centralized collection, and automated control is used to achieve alternating ash discharge between dust collector stages.

[0033] According to the layout of the dust collector, the collecting barrel at the bottom of each dust collector is removed, and one set of feeder, spiral conveyor and jet pump are installed at the discharge port. A DN100 pneumatic conveying main pipe is installed from right to left on the left side of the dust collector. A Roots blower is used as the air source at the starting end, and a spiral humidifying mixer is installed at the bottom of the 20m³ storage bin at the end. The powder is humidified when discharging and emptying to achieve the purpose of dust suppression and dust reduction, and then transported to the solid waste bin or garbage collection and transportation station for treatment using reusable fixed containers.

[0034] Closed transmission without oxide dust contact;

[0035] Spraying to cool down and remove dust to reduce volume;

[0036] The centralized negative pressure system solves the waiting time during the crystal pulling process, including dismantling, cleaning and assembling furnaces;

[0037] Multi-point operation becomes single-point operation while extending the ash disposal cycle;

[0038] Improve the treatment of dust flash explosion and dust pollution environment.

[0039] Working principle: The utility model includes an air pressure regulating and conveying mechanism 1, a one-way flow pipe with differential pressure in the pipeline 2, a spray humidifying component 3, a controllable wind power centralized dust collection pipe 4, a centralized ash collection bin 5, an air duct 6, a single crystal furnace dust collection bin 7, an ash collection unit sub-bin 8, a second discharge valve 9, a second valve body drive component 10, a first discharge valve 11, a first valve body drive component 12, a feed port 13, a humidifier 14, a humidifying pipe 15, a spray pipe 16, a bin body 17, and a spiral feeder 18. , discharge port 19, driving machine 20, wind pressure regulator 21, adjustable fan 22, driving fan 23 and base 24, the wind pressure regulating conveying mechanism 1 can adjust the conveying wind pressure and start and stop control at any time, the purpose of the pipeline pressure difference one-way flow pipe 2 is to prevent backflow, the spray humidification component 3 is intended to reduce the flash explosion problem and dust volume, the controllable wind power centrally collects the dust pipe 4 to centrally collect the dust, and the centralized ash collection bin 5 reduces the volume for easy transportation, replacing the traditional manual ton bag or woven bag collection operation.

[0040] The spray centralized pipeline dust transportation adopts the closed pipeline form, which makes it difficult for personnel to be exposed to dust, prolongs the dust particle treatment and filtration unit, reduces the dust exposure time, and reduces the occupational health hazards;

[0041] The ash collection unit sub-bin adopts automatic ash discharge and spiral conveyor to the centralized ash collection bin, which speeds up the device processing process, improves material handling efficiency, and ensures that the ash removal device system can operate online for a long time under negative pressure;

[0042] Centralized ash collection and spraying degradation control in the crystal pulling process can effectively control and improve the spontaneous combustion or flash explosion caused by the addition of a small amount of elements such as phosphorus and gallium when exposed to air (oxygen), avoiding personal injury and fire hazards;

[0043] From the perspective of the number and cost of packaging bags, the manufacturing cost can be reduced, the number of bags used to contain dust oxides and particulates can be reduced to a certain extent, and the material and labor costs can be reduced;

[0044] The centralized ash conveying fully enclosed pipeline avoids dust generation, thus maintaining environmental hygiene and quality;

[0045] Ultimately, all benefits are directly reflected in increased labor input, material packaging input, and monocrystalline silicon ingot production. It has been calculated that labor can increase efficiency by at least 67%.

[0046] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "includes a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A spray-type automatic centralized conveying and ash removal and filtering device, comprising a single crystal furnace dust collection bin (7), a pipeline pressure difference one-way flow pipe (2) and a centralized ash collection bin (5), characterized in that: The bottom of the single crystal furnace dust collection bin (7) is connected to a pipeline pressure difference one-way flow pipe (2), and the top side of the single crystal furnace dust collection bin (7) is connected to a controllable wind power centralized dust collection pipe (4), and the controllable wind power centralized dust collection pipe (4) and the pipeline pressure difference one-way flow pipe (2) are both connected to an ash collection unit sub-bin (8), and the bottom of the ash collection unit sub-bin (8) is connected to a centralized ash collection bin (5), and the other end of the pipeline pressure difference one-way flow pipe (2) is connected to an air duct (6), and an air pressure regulating and conveying mechanism (1) is connected to the air duct (6), and a spray humidification component (3) is installed on the top of the centralized ash collection bin (5).

2. The spray-type automatic centralized conveying and ash removal filtering device according to claim 1 is characterized in that: A second discharge valve (9) is provided at a position where the bottom of the ash collecting unit sub-bin (8) is connected to the centralized ash collecting bin (5), and a second valve body drive assembly (10) is installed on the outer side of the second discharge valve (9). A first discharge valve (11) is provided at a position where the bottom of the single crystal furnace dust collecting bin (7) is connected to the pressure difference one-way flow pipe (2), and a first valve body drive assembly (12) is installed on the outer side of the first discharge valve (11).

3. The spray-type automatic centralized conveying and ash removal filtering device according to claim 1 is characterized in that: The spray humidification component (3) comprises a humidifier (14), a humidification tube (15) and a spray tube (16); the humidifier (14) is connected to the humidification tube (15); the bottom of the humidification tube (15) is connected to the spray tube (16); and the humidifier (14) sprays at the spray tube (16) through the humidification tube (15).

4. The spray-type automatic centralized conveying and ash removal filtering device according to claim 1 is characterized in that: The centralized ash collecting bin (5) comprises a driving machine (20), a screw conveyor (18), a discharge port (19), a bin body (17) and a feed port (13). The driving machine (20) drives the screw conveyor (18) to move inside the bin body (17). The top of the bin body (17) is connected to the second discharge valve (9) through the feed port (13), and the bottom of the bin body (17) is output through the discharge port (19).

5. The spray-type automatic centralized conveying and ash removal filtering device according to claim 1 is characterized in that: The wind pressure regulating and conveying mechanism (1) comprises a wind pressure regulator (21), an adjustable fan (22), a driving fan (23) and a base (24), wherein the driving fan (23) and the adjustable fan (22) are both mounted on the upper end of the base (24), and the wind pressure regulator (21) controls the output of the adjustable fan (22).

6. The spray-type automatic centralized conveying and ash removal filtering device according to claim 1 is characterized in that: The wind pressure regulating and conveying mechanism (1) blows air into the interior of the pipeline pressure difference one-way flow tube (2) through the air duct (6), and the material inside the single crystal furnace dust collection bin (7) is blown into the interior of the ash collecting unit sub-bin (8) through the pipeline pressure difference one-way flow tube (2) and finally enters the interior of the centralized ash collecting bin (5).

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