Device for automatically discharging and collecting dust

Abstract

The utility model relates to a device for automatically discharging and collecting dust, and relates to the technical field of nonferrous smelting engineering. The utility model discloses a device for automatically discharging and collecting dust. The device comprises a flue gas cooler, a bag collector, a first screw conveyor, a second screw conveyor, a first humidifying screw conveyor, a first bin pump, a second bin pump, a first dust collecting bin, a second dust collecting bin and a controller. According to the flue gas dust collection device, after flue gas exhausted from the preheating boiler is cooled through the flue gas cooler, primary dust collection is carried out, the cooled flue gas is conveyed to the cloth bag dust collector for secondary dust collection, and finally smoke dust is conveyed to the second dust collection bin through the second bin type pump to be collected. According to the stage treatment method, the flue gas can be efficiently recycled, and the emission requirement can be met.

Description

Technical Field

[0001] This application relates to the field of non-ferrous metallurgical engineering technology, and in particular to a device for automatic dust feeding and collection. Background Technology

[0002] The electrostatic precipitator process in non-ferrous metal ore smelting covers all stages from ore smelting and refining to finished product output. By ensuring effective dust collection, it ensures the continuity and stability of the smelting process and improves the quality and production efficiency of non-ferrous metal products.

[0003] Currently, dust collection typically employs simple feeding channels, usually straight or slightly tapered metal pipes. The dust relies on gravity to transfer from the electrostatic precipitator hopper to the collection container. Simultaneously, a manual gate valve is installed at the bottom of the pipe, allowing operators to monitor dust accumulation and manually control the feeding rate.

[0004] However, because operators find it difficult to accurately control the material feeding amount, and frequent manual operations can easily lead to dust spillage, causing material loss and affecting the working environment. At the same time, the manual inspection-based operation mode cannot monitor changes in key parameters such as dust levels and feeding status in real time. When problems such as abnormal feeding or overflowing collection occur, the system cannot respond quickly, often leading to production interruptions and affecting normal production operations. Utility Model Content

[0005] To address or partially address the problems existing in related technologies, this application provides a device for automatic dust feeding and collection, which can efficiently recover flue gas and ensure safe production operation.

[0006] This application provides an apparatus for automatic dust feeding and collection, the apparatus comprising: a flue gas cooler, a bag filter dust collector, a first screw conveyor, a second screw conveyor, a first humidifying screw conveyor, a first silo pump, a second silo pump, a first dust collection silo, a second dust collection silo, and a controller;

[0007] The inlet of the flue gas cooler is connected to the outlet of the self-preheating boiler through a pipe, the outlet of the flue gas cooler is connected to the inlet of the bag filter dust collector through a pipe, and the outlet of the bag filter dust collector is connected to the main outlet pipe of the fuming furnace through a pipe.

[0008] The first screw conveyor is located at the bottom of the ash discharge port of the flue gas cooler, and the ash discharge port of the flue gas cooler is connected to the first screw conveyor through a pipe with a control valve;

[0009] The discharge port of the first screw conveyor is connected to the inlet of the first humidifying screw conveyor via a pipe;

[0010] The discharge port of the first humidifying screw conveyor is connected with the first bin-type pump through a pipeline, and the discharge end of the first bin-type pump is connected with the first dust collecting bin through a pipeline;

[0011] The second screw conveyor is arranged at the bottom of the dust discharging port of the bag-type dust collector, and the dust discharging port of the bag-type dust collector is connected with the second screw conveyor through a pipeline with a control valve;

[0012] The discharge port of the second screw conveyor is connected with the second bin-type pump through a pipeline, and the discharge end of the second bin-type pump is connected with the second dust collecting bin through a pipeline;

[0013] The first dust collecting bin and the second dust collecting bin are both provided with a material level sensor;

[0014] The controller is electrically connected with the flue gas cooler, the bag-type dust collector, the first screw conveyor, the second screw conveyor, the first humidifying screw conveyor, the first bin-type pump, the second bin-type pump and each material level sensor.

[0015] Optionally, in some embodiments of the present application:

[0016] The device further comprises a switching valve and a third screw conveyor;

[0017] The discharge port of the first screw conveyor is connected with the switching valve, one discharge end of the switching valve is connected with the discharge port of the first humidifying screw conveyor through a pipeline, and the other discharge end of the switching valve is connected with the discharge port of the third screw conveyor through a pipeline.

[0018] Optionally, in some embodiments of the present application:

[0019] The cooling pipe and the discharge hopper of the flue gas cooler are both provided with a rapping motor;

[0020] The discharge hopper of the bag-type dust collector is provided with a rapping motor;

[0021] The controller is electrically connected with each rapping motor.

[0022] Optionally, in some embodiments of the present application:

[0023] The edges of the blades of the first screw conveyor, the second screw conveyor and the third screw conveyor are both provided with a flexible scraper.

[0024] Optionally, in some embodiments of the present application:

[0025] The discharge ports of the first dust collecting bin and the second dust collecting bin are both provided with a flow regulating valve;

[0026] The controller is electrically connected with each flow regulating valve.

[0027] The technical scheme provided by the application can have the following beneficial effects.

[0028] The application cools the flue gas discharged from the self-preheating boiler by the flue gas cooler, performs preliminary dust collection, and performs humidification treatment on the cooled flue dust by the first humidification screw conveyor. Finally, the flue dust is transported to the first dust collection bin by the first bin pump. Meanwhile, the cooled flue gas is transported to the bag dust collector for secondary dust collection. Finally, the flue dust is transported to the second dust collection bin by the second bin pump. The hierarchical processing method can efficiently recover the flue gas and meet the emission requirements.

[0029] The application can monitor the dust inventory in real time by the material level sensor, and automatically control the start and stop of the discharging and the discharging amount according to the set threshold and the flow regulating valve, so as to ensure the stability of the dust conveying, effectively avoid discharging abnormalities, overflow and other problems, and ensure the safe operation of the production.

[0030] The application can reduce manual intervention by the controller for unified control, the construction of an integrated central control system, and automatic control, so as to ensure the efficient and stable operation of the smelting production line and improve the intelligent management level.

[0031] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0032] The above and other objects, features and advantages of the application will become more apparent from the following detailed description of exemplary embodiments of the application taken in conjunction with the accompanying drawings, in which like reference characters refer to the like parts throughout the different views.

[0033] Figure 1 is a structural schematic view of the device for automatic dust discharging and collecting in the first embodiment of the application;

[0034] Figure 2 is a structural schematic view of the device for automatic dust discharging and collecting in the second embodiment of the application;

[0035] Figure 3 is a control structure schematic view of the controller in the first embodiment of the application.

[0036] Reference numerals: 1 - flue gas cooler, 2 - bag filter, 3 - first screw conveyor, 4 - second screw conveyor, 5 - first humidifying screw conveyor, 6 - first silo pump, 7 - second silo pump, 8 - first dust collecting silo, 9 - second dust collecting silo, 10 - controller, 11 - rapping motor, 12 - dust collecting fan, 13 - switching valve, 14 - third screw conveyor. DETAILED DESCRIPTION

[0037] Embodiments of the present application will be described in more detail by referring to the drawings. Although embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0038] It should be understood that although the terms "first", "second", "third", etc. can be employed in this application to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one piece of information from another piece of information of the same type. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0039] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] Currently, for the collection of dust, a simple discharge channel is often used, which is usually a straight cylinder or a slightly tapered metal pipe, relying on the gravity of the dust itself to realize the transfer from the dust hopper of the electric dust collector to the collection container. At the same time, by setting a manual gate valve at the bottom of the pipe, the operator observes the dust accumulation on site, and manually opens the gate valve to control the discharging rhythm.

[0042] However, since the operator cannot accurately control the discharging amount, and frequent manual operation is easy to cause dust overflow, which will cause material loss and affect the working environment. At the same time, the operation mode dominated by manual inspection cannot real-time master the changes of key parameters such as dust inventory and discharging state, and when problems such as abnormal discharging and full overflow occur, it cannot respond quickly, often causing production interruption, affecting the normal operation of production, and increasing production cost.

[0043] In view of the above problems, the embodiment of the present application provides a device for automatic discharging and collecting of dust, which can efficiently recover flue gas and ensure the safe operation of production.

[0044] The technical scheme of the embodiment of the present application is described in detail below with reference to the drawings.

[0045] Figure 1 is a structural schematic diagram of the device for automatic discharging and collecting of dust in the first embodiment of the present application;

[0046] Figure 2 is a structural schematic diagram of the device for automatic discharging and collecting of dust in the second embodiment of the present application;

[0047] Figure 3 is a control structure schematic diagram of the controller in the first embodiment of the present application.

[0048] Embodiment one:

[0049] Referring to Figure 1 and Figure 3 , a device for automatic discharging and collecting of dust, the device comprising: a flue gas cooler 1, a bag dust collector 2, a first screw conveyor 3, a second screw conveyor 4, a first humidifying screw conveyor 5, a first bin pump 6, a second bin pump 7, a first dust collecting bin 8, a second dust collecting bin 9 and a controller 10.

[0050] The gas inlet end of the flue gas cooler 1 is connected to the gas outlet end of the self-preheating boiler through a pipeline, and the gas outlet end of the flue gas cooler 1 is connected to the gas inlet end of the bag dust collector 2 through a pipeline, and the gas outlet end of the bag dust collector 2 is connected to the flue gas cooler outlet manifold through a pipeline.

[0051] The first screw conveyor 3 is arranged at the bottom of the dust discharge port of the flue gas cooler 1, and the dust discharge port of the flue gas cooler 1 is connected to the first screw conveyor 3 through a pipeline with a control valve.

[0052] The discharge port of the first screw conveyor 3 is connected to the feeding port of the first humidifying screw conveyor 5 through a pipeline.

[0053] The discharge port of the first humidifying screw conveyor 5 is connected to the first bin pump 6 through a pipeline, and the discharge end of the first bin pump 6 is connected to the first dust collecting bin 8 through a pipeline.

[0054] The second screw conveyor 4 is arranged at the bottom of the dust discharging port of the bag-type dust collector 2, and the dust discharging port of the bag-type dust collector 2 is connected to the second screw conveyor 4 through a pipeline with a control valve.

[0055] The discharge port of the second screw conveyor 4 is connected to the second bin pump 7 through a pipeline, and the discharge end of the second bin pump 7 is connected to the second dust collecting bin 9 through a pipeline.

[0056] In this embodiment, by connecting the flue gas cooler 1 and the bag-type dust collector 2, the flue gas discharged from the preheating boiler is cooled by the flue gas cooler 1 first, then is preliminarily collected, the cooled dust is transported to the first screw conveyor 3 through the dust discharging port of the flue gas cooler 1, then is humidified by the first humidifying screw conveyor 5, and finally is transported to the first dust collecting bin 8 through the first bin pump 6 for collection; the flue gas cooled by the flue gas cooler 1 is transported to the bag-type dust collector 2 for secondary collection, the flue gas filtered by the bag-type dust collector 2 is discharged to the flue gas outlet main pipe, the dust filtered by the bag-type dust collector 2 is transported to the second screw conveyor 4 through the dust discharging port of the bag-type dust collector 2, then is transported to the second bin pump 7 through the second screw conveyor 4, and finally is transported to the second dust collecting bin 9 through the second bin pump 7 for collection.

[0057] Specifically, the cooling pipe and the discharge hopper of the flue gas cooler 1 are both provided with a rapping motor 11; the discharge hopper of the bag-type dust collector 2 is provided with a rapping motor 11; and the controller 10 is electrically connected with each rapping motor 11.

[0058] In this embodiment, by setting the rapping motor 11 to work regularly through the controller 10, the accumulated dust on the pipe wall can be better removed, the problems such as dust hardening and incomplete traditional dust removal can be avoided, and the dust resource can be better collected and utilized.

[0059] Specifically, the blade edges of the first screw conveyor 3 and the second screw conveyor 4 are both additionally provided with a flexible scraper.

[0060] In this embodiment, by additionally providing a flexible scraper at the blade edge, the dust adhered to the cylinder wall can be cleaned synchronously during rotation, the dust residue can be reduced, the dust collection efficiency can be improved, the dust can be effectively and smoothly transported to the subsequent collection link, and the equipment failure rate and maintenance cost can be reduced.

[0061] The first dust collecting bin 8 and the second dust collecting bin 9 are each provided with a material level sensor.

[0062] Specifically, a flow regulating valve is arranged at the discharge port of the first dust collecting bin 8 and the second dust collecting bin 9; and the controller 10 is electrically connected to each flow regulating valve.

[0063] In the embodiment, the material level sensor can be used to monitor the dust storage in real time, and the flow regulating valve can be used to automatically control the start and stop of the dust discharging and the amount of the dust discharging according to the set threshold, thereby ensuring the stability of the dust conveying. Meanwhile, the dust storage can be monitored to effectively avoid abnormal discharging and overflow of the collected dust, thereby ensuring the safe operation of the production.

[0064] The controller 10 is electrically connected to the flue gas cooler 1, the bag dust collector 2, the first screw conveyor 3, the second screw conveyor 4, the first humidifying screw conveyor 5, the first bin pump 6, the second bin pump 7, and each material level sensor.

[0065] In the embodiment, the controller 10 is a PLC controller 10, and the integrated central control system can be constructed by the controller 10 to ensure the efficient and stable operation of the smelting production line and improve the intelligent management level.

[0066] Embodiment Two

[0067] Referring to Figure 2 The device for automatically discharging and collecting dust in Embodiment One further includes a switching valve 13 and a third screw conveyor 14 in Embodiment Two, wherein the edges of the blades of the third screw conveyor 14 are each provided with a flexible scraper.

[0068] The switching valve 13 is connected to the discharge port of the first screw conveyor 3, one discharge port of the switching valve 13 is connected to the inlet of the first humidifying screw conveyor 5 through a pipeline, and the other discharge port of the switching valve 13 is connected to the inlet of the third screw conveyor 14 through a pipeline.

[0069] In the embodiment, when the cooled dust needs to be directly used, the dust can be immediately switched to the third screw conveyor 14 and then conveyed to the subsequent production link, thereby effectively improving the production efficiency and flexibility.

[0070] The technical solutions in the embodiments of the application have the following beneficial effects:

[0071] The application cools the flue gas discharged from the preheating boiler through the flue gas cooler 1, carries out preliminary dust collection, carries out humidification treatment on the cooled flue dust through the first humidification screw conveyor 5, finally transports the flue dust to the first dust collecting bin 8 through the first bin pump 6 for collection, at the same time, the cooled flue gas is transported to the bag dust collector 2 for secondary dust collection, finally the flue dust is transported to the second dust collecting bin 9 through the second bin pump 7 for collection.

[0072] The application can monitor the dust inventory in real time through the setting of the material level sensor, and realize the automatic control of the start and stop of discharging and the discharging amount according to the set threshold value and the flow regulating valve, so as to guarantee the stability of dust conveying, effectively avoid discharging abnormity, overflow and other problems, and guarantee the safe operation of production.

[0073] The application can guarantee the efficient and stable operation of the smelting production line and improve the intelligent management level through the unified control of the controller 10, the construction of an integrated central control system and the reduction of manual intervention through automatic control.

[0074] Finally, it should be noted that in this document, relationships such as first and second, and the like, are used only to distinguish one entity or action from another, and do not necessarily require or imply any actual relationship or order between or among such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0075] The above has described the embodiments of the application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical application, or improvement of the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A device for automatic dust feeding and collection, characterized in that: The device includes: a flue gas cooler (1), a bag filter dust collector (2), a first screw conveyor (3), a second screw conveyor (4), a first humidifying screw conveyor (5), a first chamber pump (6), a second chamber pump (7), a first dust collection chamber (8), a second dust collection chamber (9), and a controller (10); The inlet of the flue gas cooler (1) is connected to the outlet of the self-preheating boiler through a pipe, the outlet of the flue gas cooler (1) is connected to the inlet of the bag dust collector (2) through a pipe, and the outlet of the bag dust collector (2) is connected to the main outlet pipe of the fuming furnace through a pipe. The first screw conveyor (3) is located at the bottom of the ash discharge port of the flue gas cooler (1), and the ash discharge port of the flue gas cooler (1) is connected to the first screw conveyor (3) through a pipe with a control valve. The discharge port of the first screw conveyor (3) is connected to the inlet of the first humidifying screw conveyor (5) through a pipe; The discharge port of the first humidifying screw conveyor (5) is connected to the first silo pump (6) through a pipe, and the discharge end of the first silo pump (6) is connected to the first dust collection silo (8) through a pipe. The second screw conveyor (4) is located at the bottom of the ash discharge port of the bag dust collector (2), and the ash discharge port of the bag dust collector (2) is connected to the second screw conveyor (4) through a pipe with a control valve. The discharge port of the second screw conveyor (4) is connected to the second silo pump (7) through a pipe, and the discharge end of the second silo pump (7) is connected to the second dust collection silo (9) through a pipe. Material level sensors are installed in both the first dust collection bin (8) and the second dust collection bin (9); The controller (10) establishes electrical connections with the flue gas cooler (1), the bag filter (2), the first screw conveyor (3), the second screw conveyor (4), the first humidifying screw conveyor (5), the first silo pump (6), the second silo pump (7), and each material level sensor.

2. The device for automatic dust feeding and collection according to claim 1, characterized in that: The device also includes: a switching valve (13) and a third screw conveyor (14); The feed end of the switching valve (13) is connected to the discharge port of the first screw conveyor (3). One discharge end of the switching valve (13) is connected to the feed port of the first humidifying screw conveyor (5) through a pipe. The other discharge end of the switching valve (13) is connected to the feed port of the third screw conveyor (14) through a pipe.

3. The device for automatic dust feeding and collection according to claim 2, characterized in that: The flue gas cooler (1) is equipped with a vibrating motor (11) on both the cooling pipe and the discharge hopper; The bag dust collector (2) is equipped with a vibrating motor (11) on its discharge hopper; The controller (10) establishes an electrical connection with each of the vibrating motors (11).

4. The device for automatic dust feeding and collection according to claim 3, characterized in that: Flexible scrapers are added to the blade edges of the first screw conveyor (3), the second screw conveyor (4) and the third screw conveyor (14).

5. The device for automatic dust feeding and collection according to claim 4, characterized in that: Flow regulating valves are installed at the discharge ports of the first dust collection bin (8) and the second dust collection bin (9); the controller (10) is electrically connected to each flow regulating valve.

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