Adjustable thick-thin separation device

Abstract

The utility model relates to the field of boiler combustors, in particular to an adjustable thick-thin separation device which comprises an adjusting assembly, a separation assembly is arranged at the top of the adjusting assembly, a connecting assembly is arranged at the bottom of the adjusting assembly, the adjusting assembly comprises an adjusting pipe, and a plurality of rotating seats are arranged at the bottom end of the adjusting pipe. An adjusting blade is rotationally connected to one side of the rotating seat, a synchronous gear is fixedly installed on one side of the adjusting blade, the adjusting blade is arranged in an adjusting pipe, the synchronous gear is arranged outside the adjusting pipe, the separating assembly comprises a separating cylinder, the top of the separating cylinder is communicated with a concentrated powder pipe, the concentrated powder pipe inclines towards one side, and the separating cylinder is fixedly connected with the rotating seat. And the thick powder pipe communicates with a thin powder pipe, and the thin powder pipe is arranged in the middle of the top end of the separation barrel, so that the effects that thick-thin separation is efficiently carried out on the pulverized coal, and the thick-thin ratio can be adjusted are achieved.

Description

Technical Field

[0001] This application relates to the field of boiler burners, and in particular to an adjustable rich-lean separation device. Background Technology

[0002] A rich-lean separation unit (also known as a pulverized coal concentrator or fuel concentration regulator) for boiler burners is a specially designed device to optimize the fuel-air mixture ratio during combustion to improve combustion efficiency and reduce pollutant emissions. This device is primarily used in coal-fired boilers, especially those using pulverized coal as fuel.

[0003] Existing conventional burner concentrate separators use methods such as elbow-type concentrators or louvered concentrators, which are limited by structural constraints and cannot achieve the most ideal coal powder concentration, making them inconvenient to use.

[0004] For example, Chinese Patent No. 202211736834.X discloses an adjustable concentration separator. The separator includes: a bent tube body, a flow guiding component, a separation component, and a concentration component. The flow guiding component includes a first flow guiding plate and a second flow guiding plate. The flow guiding component defines a converging channel. The cross-sectional area of ​​the converging channel gradually decreases from upstream to downstream. The separation component includes a rotating shaft and a partition plate. The partition plate defines a concentrated phase branch channel. The concentrated phase branch channel is connected to the converging channel. The concentration component is connected to the bent tube body. The concentration component has a concentration channel, a gas chamber, and a vent. The concentration channel is connected to the concentrated phase branch channel. The peripheral wall of the concentration channel is provided with multiple filter holes. The concentration channel is connected to the gas chamber through the filter holes. The vent is connected to the gas chamber.

[0005] The technical solution described in this paper uses a separator plate to adjust the flow rate and solid-gas ratio of the dense phase branch, and the enrichment component fine-tunes the concentration of the dense phase branch to further enhance the enrichment effect of the separator. However, the separator plate is easily impacted and worn by the coal powder airflow during use, which affects the accuracy of subsequent coal powder concentration-to-lean separation adjustment and makes it inconvenient to use. Utility Model Content

[0006] In order to solve the problems mentioned in the background art, this application provides an adjustable concentration-depression separation device.

[0007] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0008] An adjustable concentration-to-dissolver device includes an adjustment assembly, a separation assembly at the top of the adjustment assembly, and a connection assembly at the bottom of the adjustment assembly. The adjustment assembly includes an adjustment tube, and a plurality of rotating seats are provided at the bottom end of the adjustment tube. An adjustment blade is rotatably connected to one side of each rotating seat, and a synchronous gear is fixedly installed on one side of each adjustment blade. The adjustment blade is disposed inside the adjustment tube, and the synchronous gear is disposed outside the adjustment tube. The separation assembly includes a separation cylinder, and a concentrated powder pipe is connected to the top of the separation cylinder. The concentrated powder pipe is inclined to one side and is connected to a dilute powder pipe, which is disposed at the middle of the top of the separation cylinder.

[0009] By adopting the above scheme and setting the connecting components, it is easy to connect the device to external pipelines, allowing the high-speed airflow with a large amount of coal powder generated by the coal mill to flow into the device. This facilitates the adjustment and separation components to separate the coal powder airflow into thick and thin sections. The rotating seat is connected to an adjusting blade, which can be rotated to a certain angle to form a rotating airflow inside the adjusting pipe. The synchronous gear allows the rotation of the synchronous gear to adjust the angle of the adjusting blade, changing the path and angle of the airflow inside the adjusting pipe, thereby adjusting the magnitude of the centrifugal force and achieving the separation of the coal powder airflow into thick and thin sections. The separation cylinder allows the coal powder airflow, after being adjusted by the adjustment components, to undergo centrifugal separation inside the separation cylinder, so that the thick powder airflow is discharged from the thick powder pipe and the thin powder airflow is discharged from the thin powder pipe, thus achieving the separation of the coal powder into thick and thin sections.

[0010] Furthermore, a gear ring seat is fixedly installed on the outer side of the bottom end of the adjusting tube, and the gear ring seat is fixedly installed on the bottom of the rotating seat.

[0011] By adopting the above scheme and setting the gear ring seat, it is convenient to connect the synchronous gear ring to the outside of the regulating tube.

[0012] Furthermore, a synchronous gear ring is rotatably connected to the outer side of the gear ring seat. The synchronous gear ring has teeth at both the top and bottom, and the top of the synchronous gear ring meshes with a synchronous gear.

[0013] By adopting the above scheme, the top of the synchronous gear ring meshes with the synchronous gear, which facilitates the rotation of the synchronous gear ring to drive multiple synchronous gears to rotate synchronously, thereby synchronously adjusting the angle of the adjusting blade.

[0014] Furthermore, an adjusting gear is engaged at the bottom of one end of the synchronous gear ring, and the adjusting gear is rotatably connected to the outside of the adjusting tube.

[0015] By adopting the above scheme and adjusting the gear settings, it is easy to control the rotation of the synchronous gear ring by adjusting the rotation of the gear.

[0016] Furthermore, an adjustment handle is fixedly installed on one side of the adjustment gear, and a rubber sleeve is wrapped around one end of the adjustment handle.

[0017] By adopting the above scheme and adjusting the handle, the rotation of the adjusting gear can be easily controlled, thereby adjusting the angle of the adjusting blade.

[0018] Furthermore, maintenance hand holes are provided on both sides of the middle part of the regulating tube, and a sealing cover is fixedly installed on one side of the maintenance hand hole.

[0019] By adopting the above scheme, the maintenance manhole facilitates the opening of the sealing cover to inspect and adjust the condition of the blades.

[0020] Furthermore, the connecting assembly includes a connecting cylinder, the top radius of which is greater than the bottom radius, and connecting flanges are provided at both the top and bottom of the connecting cylinder.

[0021] By adopting the above scheme, with the top radius of the connecting cylinder being larger than the bottom radius, the high-speed airflow with a large amount of coal powder generated by the coal mill entering the device limits the initial airflow speed, reduces turbulence and irregular flow, and makes the airflow more concentrated and stable, thereby improving the overall stability of the airflow and benefiting the subsequent separation process.

[0022] Furthermore, the top radii of both the light powder tube and the concentrated powder tube are smaller than the bottom radii, and both the top of the light powder tube and the bottom of the separation cylinder are provided with connecting flanges.

[0023] By adopting the above scheme, the top radii of both the light and dark powder pipes are smaller than the bottom radii, which allows the narrower top outlet to maintain a higher airflow velocity, forming a strong negative pressure zone. This ensures that the separated coal powder particles can be discharged efficiently while maintaining smooth airflow.

[0024] Furthermore, the top and bottom of the regulating pipe are provided with connecting flanges, and the regulating assembly is connected to the separating assembly and the connecting assembly through flanges.

[0025] By adopting the above scheme, the adjustment components, separation components, and connection components are all connected by flanges, which facilitates convenient and quick disassembly and maintenance of the device.

[0026] In summary, this application has the following technical effects:

[0027] The connection components facilitate connection between the device and external pipelines, allowing the high-speed airflow containing a large amount of pulverized coal generated by the coal mill to enter the device. This facilitates the separation of the pulverized coal airflow by the regulating and separating components. A rotating blade is connected to one side of the rotating base, allowing the blade to rotate to a certain angle to create a rotating airflow inside the regulating pipe. The synchronous gear allows for adjustment of the blade angle, changing the path and angle of the airflow inside the regulating pipe, thereby regulating the centrifugal force and achieving pulverized coal airflow separation. The separation cylinder allows the pulverized coal airflow, after being regulated by the regulating components, to undergo centrifugal separation inside the cylinder. The concentrated pulverized coal airflow exits from the concentrated pulverized coal pipe, and the diluted pulverized coal airflow exits from the diluted pulverized coal pipe, achieving efficient pulverized coal airflow separation and adjustable concentration ratio. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of an adjustable concentration-degradation separation device according to this application;

[0029] Figure 2 This is an exploded view of an adjustable concentration-desalination separation device according to this application;

[0030] Figure 3 This is an exploded view of the adjustment component of this application;

[0031] Figure 4 This is a cross-sectional view of the detachable component of this application.

[0032] In the diagram, 101 is the adjusting component; 10101 is the adjusting pipe; 10102 is the inspection manhole; 10103 is the sealing cover; 10104 is the rotating seat; 10105 is the gear ring seat; 10106 is the adjusting gear; 10107 is the adjusting handle; 10108 is the adjusting blade; 10109 is the synchronous gear; 10110 is the synchronous gear ring; 102 is the separating component; 10201 is the separating cylinder; 10202 is the light powder pipe; 10203 is the thick powder pipe; 103 is the connecting component; and 10301 is the connecting cylinder. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] Example:

[0035] As attached Figure 1 To be continued Figure 4 As shown:

[0036] This utility model provides an adjustable concentration-lean separation device, including an adjustment component 101, a separation component 102 at the top of the adjustment component 101, and a connecting component 103 at the bottom of the adjustment component 101. The connecting component 103 facilitates connection of the device to an external pipeline, allowing the high-speed airflow containing a large amount of coal powder generated by the coal mill to enter the device, facilitating concentration separation of the coal powder airflow by the adjustment component 101 and the separation component 102. The adjustment component 101 includes an adjustment pipe 10101, with several rotating seats 10104 at the bottom end of the adjustment pipe 10101. Adjusting blades 10108 are rotatably connected to one side of each rotating seat 10104. The rotatable connection of the adjusting blades 10108 to one side of the rotating seat 10104 allows the adjusting blades 10108 to rotate to a certain angle, creating a rotating airflow inside the adjustment pipe 10101. A synchronous gear 10109 is fixedly installed on one side of each adjusting blade 10108. The synchronous gear 10109 facilitates... The rotation of the synchronous gear 10109 adjusts the angle of the regulating blade 10108, changing the path and angle of the airflow inside the regulating pipe 10101, thereby adjusting the magnitude of the centrifugal force and achieving concentration separation of the pulverized coal airflow. The regulating blade 10108 is located inside the regulating pipe 10101, and the synchronous gear 10109 is located outside the regulating pipe 10101. The separation assembly 102 includes a separation cylinder 10201, the top of which is connected to a concentrated powder pipe. 10203, the concentrated powder pipe 10203 is inclined to one side and is connected to the dilute powder pipe 10202. The dilute powder pipe 10202 is located at the top center of the separation cylinder 10201. The separation cylinder 10201 facilitates the centrifugal separation of the coal powder airflow after adjustment by the adjustment component 101 inside the separation cylinder 10201, so that the concentrated powder airflow is discharged from the concentrated powder pipe 10203 and the dilute powder airflow is discharged from the dilute powder pipe 10202, thereby realizing the separation of concentrated and dilute coal powder.

[0037] Among them, a gear ring seat 10105 is fixedly installed on the outer side of the bottom end of the regulating tube 10101. The gear ring seat 10105 is fixedly installed on the bottom of the rotating seat 10104. The setting of the gear ring seat 10105 makes it easy to rotatably connect the synchronous gear ring 10110 to the outside of the regulating tube 10101.

[0038] Among them, a synchronous gear ring 10110 is rotatably connected to the outer side of the gear ring seat 10105. The synchronous gear ring 10110 has teeth on its top and bottom. The top of the synchronous gear ring 10110 meshes with the synchronous gear 10109. The meshing connection between the top of the synchronous gear ring 10110 and the synchronous gear 10109 facilitates the rotation of the synchronous gear ring 10110 to drive the synchronous rotation of multiple synchronous gears 10109, thereby synchronously adjusting the angle of the adjusting blade 10108.

[0039] Among them, the bottom of one end of the synchronous gear ring 10110 is meshed with an adjusting gear 10106. The adjusting gear 10106 is rotatably connected to the outside of the adjusting tube 10101. The setting of the adjusting gear 10106 facilitates the control of the rotation of the synchronous gear ring 10110 by the rotation of the adjusting gear 10106.

[0040] An adjustment handle 10107 is fixedly installed on one side of the adjustment gear 10106. One end of the adjustment handle 10107 is wrapped with a rubber sleeve. The adjustment handle 10107 facilitates the control of the rotation of the adjustment gear 10106, thereby enabling the adjustment of the angle of the adjustment blade 10108.

[0041] The regulating pipe 10101 has maintenance hand holes 10102 on both sides of the middle section. A sealing cover 10103 is fixedly installed on one side of the maintenance hand hole 10102. The maintenance hand hole 10102 makes it easy to open the sealing cover 10103 and check the status of the regulating blade 10108 through the maintenance hand hole 10102.

[0042] The connecting component 103 includes a connecting cylinder 10301. The top radius of the connecting cylinder 10301 is larger than the bottom radius. Both the top and bottom of the connecting cylinder 10301 are provided with connecting flanges. The fact that the top radius of the connecting cylinder 10301 is larger than the bottom radius makes it easier for the high-speed airflow with a large amount of coal powder generated by the coal mill to enter the device, thus limiting the initial airflow speed, reducing turbulence and irregular flow, making the airflow more concentrated and stable, thereby improving the overall stability of the airflow and facilitating the subsequent separation process.

[0043] The top radii of both the light powder pipe 10202 and the heavy powder pipe 10203 are smaller than their bottom radii. Both the top of the light powder pipe 10202 and the bottom of the separation cylinder 10201 are equipped with connecting flanges. The fact that the top radii of the light powder pipe 10202 and the heavy powder pipe 10203 are smaller than their bottom radii allows the narrower top outlet to maintain a higher airflow velocity, forming a strong negative pressure zone. This ensures that the separated coal powder particles can be discharged efficiently while maintaining smooth airflow.

[0044] The regulating pipe 10101 is equipped with connecting flanges at both the top and bottom. The regulating component 101 is connected to the separating component 102 and the connecting component 103 through flanges. This connection facilitates convenient and quick disassembly and maintenance of the device.

[0045] Specifically, the adjusting component 101 is connected to the separating component 102 and the connecting component 103 via flanges, facilitating convenient and quick disassembly and maintenance of the device. The connecting cylinder 10301 has a larger top radius than its bottom radius, which helps to limit the initial airflow velocity when the high-speed airflow containing a large amount of coal powder generated by the coal mill enters the device, reducing turbulence and irregular flow, making the airflow more concentrated and stable, thereby improving the overall stability of the airflow and benefiting the subsequent separation process. The adjusting handle 10107 facilitates the control of the rotation of the adjusting gear 10106, thereby adjusting the angle of the adjusting blade 10108. The adjusting gear 10106 also controls the rotation of the synchronous gear ring 10110. The top of the synchronous gear ring 10110 meshes with the synchronous gear 10109, allowing the rotation of the synchronous gear ring 10110 to drive multiple synchronous gears 10109 to rotate synchronously, thus synchronously adjusting the angle of the adjusting blade 10108. An adjusting blade 10108 is rotatably connected to one side of the rotating seat 10104. This allows the adjusting blade 10108 to rotate to a certain angle, creating a rotating airflow inside the regulating tube 10101. The synchronous gear 10109 allows for adjustment of the angle of the adjusting blade 10108, changing the path and angle of the airflow inside the regulating tube 10101. This, in turn, adjusts the magnitude of the centrifugal force, achieving concentration separation of the pulverized coal airflow. This is further facilitated by the separation cylinder 10201. This allows the coal powder airflow, after being regulated by the regulating component 101, to undergo centrifugal separation inside the separation cylinder 10201. This causes the concentrated coal powder airflow to exit from the concentrated coal powder pipe 10203 and the diluted coal powder airflow to exit from the diluted coal powder pipe 10202, thus achieving the separation of concentrated and diluted coal powder. Since the top radii of both the diluted coal powder pipe 10202 and the concentrated coal powder pipe 10203 are smaller than their bottom radii, the narrower top outlet can maintain a higher airflow velocity, forming a stronger negative pressure zone. This ensures that the separated coal powder particles can be discharged efficiently while maintaining smooth airflow.

[0046] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. An adjustable concentration-degradation separation device, characterized in that, The system includes an adjustment assembly (101), a separation assembly (102) at the top of the adjustment assembly (101), and a connecting assembly (103) at the bottom of the adjustment assembly (101). The adjustment assembly (101) includes an adjustment tube (10101), and a plurality of rotating seats (10104) are provided at the bottom end of the adjustment tube (10101). An adjustment blade (10108) is rotatably connected to one side of each rotating seat (10104), and a synchronous gear (10109) is fixedly installed on one side of each adjustment blade (10108). The blade (10108) is disposed inside the regulating tube (10101), the synchronous gear (10109) is disposed outside the regulating tube (10101), and the separation assembly (102) includes a separation cylinder (10201). The top of the separation cylinder (10201) is connected to a thick powder pipe (10203). The thick powder pipe (10203) is inclined to one side and is connected to a light powder pipe (10202). The light powder pipe (10202) is disposed at the middle of the top of the separation cylinder (10201).

2. The adjustable concentration-degradation separation device according to claim 1, characterized in that, A gear seat (10105) is fixedly installed on the outer side of the bottom end of the regulating tube (10101), and the gear seat (10105) is fixedly installed on the bottom of the rotating seat (10104).

3. The adjustable concentration-degradation separation device according to claim 2, characterized in that, The outer side of the gear ring seat (10105) is rotatably connected to a synchronous gear ring (10110). The synchronous gear ring (10110) has teeth on its top and bottom. The top of the synchronous gear ring (10110) is meshed with a synchronous gear (10109).

4. The adjustable concentration-degradation separation device according to claim 3, characterized in that, The bottom of one end of the synchronous gear ring (10110) is engaged with an adjusting gear (10106), and the adjusting gear (10106) is rotatably connected to the outside of the adjusting tube (10101).

5. The adjustable concentration-degradation separation device according to claim 4, characterized in that, An adjustment handle (10107) is fixedly installed on one side of the adjustment gear (10106), and a rubber sleeve is wrapped around one end of the adjustment handle (10107).

6. The adjustable concentration-degradation separation device according to claim 1, characterized in that, The regulating pipe (10101) has maintenance hand holes (10102) on both sides of the middle section, and a sealing cover (10103) is fixedly installed on one side of the maintenance hand hole (10102).

7. The adjustable concentration-degradation separation device according to claim 1, characterized in that, The connecting assembly (103) includes a connecting cylinder (10301), the top radius of the connecting cylinder (10301) is larger than the bottom radius, and the top and bottom of the connecting cylinder (10301) are provided with connecting flanges.

8. The adjustable concentration-degradation separation device according to claim 1, characterized in that, The top radius of both the light powder tube (10202) and the concentrated powder tube (10203) is smaller than the bottom radius, and both the top of the light powder tube (10202) and the bottom of the separation cylinder (10201) are provided with connecting flanges.

9. An adjustable concentration-degradation separation device according to claim 1, characterized in that, The regulating pipe (10101) is provided with connecting flanges at the top and bottom, and the regulating assembly (101) is connected to the separating assembly (102) and the connecting assembly (103) through flanges.

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