Energy-saving cyclone dust collector

Abstract

The utility model relates to a kind of energy-saving cyclone dust collector in dust collecting equipment technical field, including cyclone separator body and heat exchange cylinder, heat exchange cylinder is coaxially arranged in the outside of the shell of cyclone separator, the top and bottom of heat exchange cylinder are respectively sealed with the top and bottom of shell, annular cavity is formed between the inner wall of heat exchange cylinder and the inner wall of shell, first vertical baffle, second vertical baffle and third vertical baffle are sequentially provided in annular cavity along circumferential direction, three vertical baffles divide annular cavity into first heat exchange chamber, second heat exchange chamber and third heat exchange chamber, first vertical baffle upper end is equipped with first communicating port, second vertical baffle lower end is equipped with second communicating port, the lower portion of first heat exchange chamber is communicated with air inlet, the top of third heat exchange chamber is communicated with air outlet.This device is simple in structure, high in integration and low in manufacturing cost, can realize efficient recovery and recycling of high-temperature flue gas heat energy in cyclone dust removal process, reduce boiling furnace system energy consumption.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust collection equipment, specifically, it relates to an energy-saving cyclone dust collector. Background Technology

[0002] Fluidized bed furnaces, as commonly used thermal equipment in industrial production, generate large amounts of high-temperature flue gas (typically 300-500℃) during operation. This flue gas needs to be treated by a cyclone dust collector before it can be discharged or enter subsequent processes. Currently, existing cyclone dust collectors only perform dust removal. As the high-temperature flue gas passes through the cyclone dust collector's cylinder wall, a large amount of heat energy is dissipated into the external environment. This results in significant heat energy waste, increasing the overall energy consumption of the fluidized bed furnace system. Furthermore, the dissipated heat energy also raises the ambient temperature around the dust collector, requiring additional cooling equipment and further increasing production costs.

[0003] Existing heat recovery solutions mostly use independent heat exchangers to exchange heat with flue gas. However, such solutions require additional heat exchange equipment, connecting pipes and control systems, resulting in problems such as large equipment footprint, low system integration, high investment costs and limited heat recovery efficiency. They are also difficult to integrate efficiently with cyclone dust collectors and are not suitable for the compact production layout requirements of fluidized bed furnaces.

[0004] Therefore, those skilled in the art urgently need to propose an energy-saving cyclone dust collector with a simple structure, high integration, and low manufacturing cost to address the heat energy waste and shortcomings of existing fluidized bed cyclone dust collectors and recycling schemes, so as to achieve efficient recovery and recycling of high-temperature flue gas heat energy during cyclone dust collection and reduce the energy consumption of fluidized bed system. Utility Model Content

[0005] The purpose of this invention is to provide an energy-saving cyclone dust collector with a simple structure, high integration, and low manufacturing cost, so as to achieve efficient recovery and recycling of high-temperature flue gas heat energy during cyclone dust removal and reduce the energy consumption of the fluidized bed furnace system.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An energy-saving cyclone dust collector includes a cyclone separator body and a heat exchange cylinder. The cyclone separator body includes an outer shell and a central cylinder. The central cylinder is coaxially sleeved inside the outer shell, and its top extends above the outer shell and has an exhaust port. The outer shell includes an upper cylindrical cylinder and an inverted conical return cylinder integrally connected to the lower part of the cylindrical cylinder. An air inlet pipe is provided on the top side of the cylindrical cylinder along the tangential direction. A discharge pipe is connected to the bottom of the inverted conical return cylinder. The heat exchange cylinder is coaxially disposed outside the outer shell, and its top and bottom are respectively sealed to the top and bottom of the outer shell. An annular cavity is formed between the inner wall of the cylinder and the inner wall of the outer shell. A first vertical partition, a second vertical partition, and a third vertical partition are arranged sequentially along the circumference of the annular cavity. The first, second, and third vertical partitions divide the annular cavity into a first heat exchange chamber, a second heat exchange chamber, and a third heat exchange chamber. A first connecting port is provided at the upper end of the first vertical partition, and a second connecting port is provided at the lower end of the second vertical partition. An air inlet is connected to the lower part of the first heat exchange chamber, and an air outlet is connected to the top of the third heat exchange chamber. The air inlet pipe extends to the outside of the heat exchange cylinder, and the discharge pipe extends to the bottom of the heat exchange cylinder.

[0007] Preferably, the lower end of the third vertical partition is provided with a third connecting port, and the bottom of the third heat exchange chamber is divided into an air inlet chamber by a baffle. The air inlet chamber is connected to the first heat exchange chamber through the third connecting port. The air outlet and air inlet are respectively located at the top and bottom of the heat exchange cylinder, and the air inlet is connected to the air inlet chamber. By setting the air inlet chamber at the bottom of the third heat exchange chamber, it helps to extend the shutdown time of the incoming air in the annular cavity, thereby improving the heat exchange efficiency.

[0008] Preferably, the bottom of the heat exchange cylinder is provided with support legs evenly distributed circumferentially.

[0009] Preferably, the outer wall of the outer shell, the inner wall of the heat exchange cylinder, and both sides of the vertical partition are coated with a wear-resistant layer to increase the wear resistance of the device and improve its service life.

[0010] The working principle of this utility model is as follows: Utilizing the residual heat of the outer shell side wall of the cyclone separator, through the coordinated arrangement of the annular inner cavity and the first, second, and third vertical partitions, room temperature air enters the annular cavity through the air inlet and flows sequentially through the first, second, and third heat exchange chambers along the S-shaped channel, thereby fully exchanging heat with the residual heat of the outer shell side wall, significantly improving the heat exchange efficiency. The hot air is then sent into the high-temperature boiling layer through the air distribution plate in the air chamber connected to the boiling furnace, achieving efficient utilization of heat.

[0011] Compared with the prior art, the utility model has the following beneficial effects: This device has a simple structure, high integration and low manufacturing cost. It can achieve efficient recovery and recycling of high-temperature flue gas heat energy during cyclone dust removal, thereby reducing the energy consumption of the fluidized bed furnace system. Attached Figure Description

[0012] The utility model will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention in the embodiment.

[0014] Figure 2 This is a partial structural schematic diagram of the present invention in an embodiment. Detailed Implementation

[0015] The utility model will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made by those skilled in the art based on the embodiments of the utility model without inventive effort to obtain all other embodiments should be included within the protection scope of the utility model.

[0016] Example like Figures 1-2 As shown, this embodiment provides an energy-saving cyclone dust collector, including a cyclone separator body and a heat exchange cylinder 1. The cyclone separator body includes an outer shell and a central cylinder 2. The central cylinder is coaxially sleeved inside the outer shell, and its top extends to the top of the outer shell and is provided with an exhaust port. The outer shell includes an upper cylindrical cylinder 3 and an inverted conical return cylinder 4 integrally connected to the lower part of the cylindrical cylinder. An air inlet pipe 5 is provided on the side top of the cylindrical cylinder along the tangential direction of the cylindrical cylinder. An annular inner cavity (not shown in the figure) is formed between the cylindrical cylinder and the central cylinder. The air inlet pipe is connected to the annular inner cavity. A discharge pipe 6 is connected to the bottom of the inverted conical return cylinder. The heat exchange cylinder is coaxially disposed outside the outer shell, and its top... The inner wall of the heat exchange cylinder is flush with and sealed to the top and bottom of the outer shell, respectively. An annular cavity is formed between the inner wall of the heat exchange cylinder and the inner wall of the outer shell. A first vertical partition 7, a second vertical partition 8, and a third vertical partition 9 are arranged sequentially along the circumferential direction in the annular cavity. The first, second, and third vertical partitions divide the annular cavity into a first heat exchange chamber, a second heat exchange chamber, and a third heat exchange chamber. A first connecting port 11 is provided at the upper end of the first vertical partition, and a second connecting port 12 is provided at the lower end of the second vertical partition. An air inlet 13 is connected to the lower part of the first heat exchange chamber, and an air outlet 14 is connected to the top of the third heat exchange chamber. The air inlet pipe extends to the outside of the heat exchange cylinder, and the discharge pipe extends to the bottom of the heat exchange cylinder.

[0017] Specifically, the lower end of the third vertical partition is provided with a third connecting port 15, and the bottom of the third heat exchange chamber is separated by a baffle 16 to form an air inlet chamber 17. The air inlet chamber is connected to the first heat exchange chamber through the third connecting port. The air outlet and air inlet are respectively located at the top and bottom of the heat exchange cylinder, and the air inlet is connected to the air inlet chamber. By setting the air inlet chamber at the bottom of the third heat exchange chamber, it helps to extend the shutdown time of the incoming air in the annular cavity, thereby improving the heat exchange efficiency.

[0018] To increase the wear resistance and service life of the device, the outer wall of the outer shell, the inner wall of the heat exchange cylinder, and both sides of the vertical partition are all coated with a wear-resistant layer (not shown in the figure). More specifically, the wear-resistant layer is made of silicon carbide ceramic, and the bottom of the heat exchange cylinder is evenly distributed with support legs 10 along the circumference.

[0019] The working principle of this utility model is as follows: Utilizing the residual heat of the outer shell side wall of the cyclone separator, through the coordinated arrangement of the annular inner cavity and the first, second, and third vertical partitions, room temperature air enters the annular cavity through the air inlet and flows sequentially through the first, second, and third heat exchange chambers along the S-shaped channel, thereby fully exchanging heat with the residual heat of the outer shell side wall, significantly improving the heat exchange efficiency. The hot air is then sent into the high-temperature boiling layer through the air distribution plate in the air chamber connected to the boiling furnace, achieving efficient utilization of heat.

[0020] The above description is merely a preferred embodiment of the present invention and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An energy-saving cyclone dust collector, comprising a cyclone separator body, the cyclone separator body comprising a shell and a central cylinder, the central cylinder being coaxially sleeved within the shell, and the top of the central cylinder extending above the shell and having an exhaust port, the shell comprising an upper cylindrical cylinder and an inverted conical return material cylinder integrally connected to the lower part of the cylindrical cylinder, an air inlet pipe being provided on the side top of the cylindrical cylinder along the tangential direction of the cylindrical cylinder, and a discharge pipe being connected to the bottom of the inverted conical return material cylinder, characterized in that: It also includes a heat exchange cylinder, which is coaxially disposed outside the outer shell, and the top and bottom of the heat exchange cylinder are respectively sealed to the top and bottom of the outer shell. An annular cavity is formed between the inner wall of the heat exchange cylinder and the inner wall of the outer shell. A first vertical partition, a second vertical partition, and a third vertical partition are arranged sequentially along the circumferential direction in the annular cavity. The first vertical partition, the second vertical partition, and the third vertical partition divide the annular cavity into a first heat exchange chamber, a second heat exchange chamber, and a third heat exchange chamber. A first connecting port is provided at the upper end of the first vertical partition, and a second connecting port is provided at the lower end of the second vertical partition. An air inlet is connected to the lower part of the first heat exchange chamber, and an air outlet is connected to the top of the third heat exchange chamber. The air inlet pipe extends to the outside of the heat exchange cylinder, and the discharge pipe extends to the bottom of the heat exchange cylinder.

2. The energy-saving cyclone dust collector according to claim 1, characterized in that: The lower end of the third vertical partition is provided with a third connecting port. The bottom of the third heat exchange chamber is separated by a baffle and has an air inlet chamber. The air inlet chamber is connected to the first heat exchange chamber through the third connecting port. The air outlet and air inlet are respectively located at the top and bottom of the heat exchange cylinder, and the air inlet is connected to the air inlet chamber.

3. The energy-saving cyclone dust collector according to claim 1, characterized in that: The bottom of the heat exchange cylinder is evenly distributed with support legs along the circumference.

4. An energy-saving cyclone dust collector according to any one of claims 1 to 3, characterized in that: The outer wall of the outer shell, the inner wall of the heat exchange cylinder, and both sides of the vertical partition are all coated with a wear-resistant layer.

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