CN217302779U - Dynamic adjustable shade separator for powder feeding pipeline - Google Patents
Dynamic adjustable shade separator for powder feeding pipeline Download PDFInfo
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- CN217302779U CN217302779U CN202121996496.4U CN202121996496U CN217302779U CN 217302779 U CN217302779 U CN 217302779U CN 202121996496 U CN202121996496 U CN 202121996496U CN 217302779 U CN217302779 U CN 217302779U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a thick and thin separator that developments are adjustable for sending powder pipeline, including motor, motor support frame, entry connecting pipe, wear-resisting whirl blade, the wear-resisting elbow of entry, wear-resisting entry reducing pipe, wear-resisting straight tube section, fresh side exit linkage pipe, wear-resisting export elbow, wear-resisting export reducing pipe and dense side exit linkage pipe. The utility model discloses obtain following effect: the wear-resistant rotating blades of the utility model are arranged at the outlet of the inlet wear-resistant reducer pipe or the reducer pipe at the upper part of the outlet of the inlet wear-resistant elbow; under the centrifugal action of the wear-resistant cyclone blades, the dense powder-containing air flow is thrown to the outer side of the air flow by the rotating wear-resistant cyclone blades, the dense air flow and the dilute air flow are formed at the downstream of the wear-resistant cyclone blades, and the two air flows are respectively led to a dense side outlet connecting pipe and a dilute side outlet connecting pipe; simple structure, can high-efficiently realize the high-efficient thick and thin separation of dusty air current, improve dusty air current concentration.
Description
Technical Field
The utility model belongs to the technical field of the powder transport technique and specifically relates to a dynamic adjustable shade separator for sending powder pipeline.
Background
In the industries of electric power, cement industry, chemical industry and the like, the enrichment degree of particles in a powder conveying pipeline is required to be improved frequently, and a powder-containing airflow is required to be divided into two thick and thin portions so as to be used respectively. For example, in the pulverized coal burner, primary air for feeding pulverized coal or tertiary air for exhausting passes through a concentration separator with a specific structure, pulverized coal is locally enriched to generate concentration separation, and after concentrated coal enters a burner chamber, combustion is carried out, so that the ignition heat of pulverized coal airflow can be reduced, and the adaptability of the pulverized coal burner to low load is improved. The concentrated coal dust enters the combustor to effectively inhibit the generation of nitrogen oxides due to insufficient local oxygen in the initial combustion stage, and oxygen gradually participates in combustion along with the combustion, so that the combustion efficiency is ensured while the nitrogen oxides are reduced.
1. For example, the Chinese patent discloses a pulverized coal burner (application number: CN201520201125.0), in particular to a multi-bluff body concentration separation pulverized coal burner for a four-corner tangential pulverized coal burning boiler. The method is characterized in that: the fixed separation stop block I is arranged on a lower burner inlet elbow cylinder and an upper burner inlet elbow cylinder in the burner inlet elbow, a fixed separation stop block II is arranged in a space between the lower burner inlet elbow cylinder and the upper burner inlet elbow cylinder, and a fixed separation stop block III is arranged in front of the pulverized coal concentrator. The nitrogen oxide concentration of the multi-bluff body concentration separation pulverized coal burner is improved by about 40 percent on the basis of reducing the nitrogen oxide discharge concentration of the original concentration separation pulverized coal burner, the nitrogen oxide of the original concentration separation pulverized coal burner is discharged to be below 300mg/Nm3(6 percent O2), and the nitrogen oxide of the existing multi-bluff body concentration separation pulverized coal burner is reduced to be below 200mg/Nm3(6 percent O2).
2. Chinese patent discloses an adjustable coal powder concentration and dilution separating device (application number: CN201220587124.0), which comprises a burner or a powder-containing airflow channel with a bending section at least partially and a main body section, the rear end of the bending section is connected with the main body section, the main body section comprises an outer cylinder which is connected with the burner or the powder-containing airflow channel in an equal diameter way, and a concentrated-phase coal powder channel which is positioned in the outer cylinder and the front end of which is communicated with the part of the rear end of the bending section which deflects to the outer arc, the dense-phase coal powder channel sequentially comprises a shrinkage hole section, a gradual expansion section and a straight pipe section, wherein the diameter of the shrinkage hole section is gradually reduced, the gradual expansion section is gradually increased, the shrinkage hole section is connected and transited with the gradual reduction section, and the straight pipe section is arranged along the flowing direction of the airflow, a central cylinder penetrating through the shrinkage hole section is also arranged in the concentrated-phase pulverized coal channel, a central cylinder reducing section is arranged at the position where the central cylinder penetrates through the shrinkage hole section, and the coal powder concentration and dilution separation device is also provided with a central cylinder adjusting mechanism which axially moves the central cylinder along the concentrated phase coal powder channel. So that the flow rate of the gas flow at the outlet of the burner is always in a reasonable range.
In the prior art, a powder feeding pipeline usually enriches particles by utilizing the difference between the inertia of the particles and the inertia of air by utilizing an elbow structure, an additional baffle, a blunt body and the like; however, since all of these devices can only passively use the velocity of the original powder-containing gas, the distribution of particles in the powder-containing gas flow cannot be actively adjusted, and the concentration of the coal powder gas flow on both sides of the dense-thin coal powder gas flow cannot be adjusted as required.
Therefore, it is necessary to provide a dynamically adjustable shade separator for a powder feeding duct.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the above-mentioned prior art, the utility model aims to provide a novel equipment to solve above-mentioned problem.
A dynamic adjustable dense-dilute separator for powder feeding pipeline comprises a motor, a motor support frame, an inlet connecting pipe, a wear-resistant rotational flow blade, an inlet wear-resistant elbow, a wear-resistant inlet reducer pipe, a wear-resistant straight pipe section, a dilute side outlet connecting pipe, a wear-resistant outlet elbow, a wear-resistant outlet reducer pipe and a dense side outlet connecting pipe, the inlet connecting pipe is communicated with the wear-resistant inlet reducer pipe through an inlet wear-resistant elbow, the wear-resistant inlet reducer pipe is connected with a wear-resistant outlet elbow through a wear-resistant straight pipe section, the wear-resistant outlet elbow is connected with a dense side outlet connecting pipe through a wear-resistant outlet reducer pipe, the dilute side outlet connecting pipe is inserted from the side edge of the wear-resistant outlet elbow and is communicated with the wear-resistant straight pipe section, the motor is installed outside the inlet wear-resistant elbow through the motor support frame, and the output end of the motor penetrates into the wear-resistant straight pipe section from the inlet wear-resistant elbow and fixes the wear-resistant swirl vanes.
Preferably, the thick side outlet connecting pipe is provided with a wear-resistant regulating valve.
Preferably, the dilute side outlet connecting pipe is located above the wear-resistant rotational flow vanes, and the distance from the dilute side outlet connecting pipe to the inlet of the wear-resistant straight pipe section is 1-6 times of the diameter of the wear-resistant straight pipe section.
Preferably, the diameters of the wear-resistant straight pipe section and the wear-resistant outlet elbow are 1-2 times of the diameter of the inlet wear-resistant elbow.
Preferably, the diameter of the dilute side outlet connecting pipe and the diameter of the concentrated side outlet connecting pipe are both smaller than the diameter of the inlet wear-resistant elbow.
Preferably, the inlet connecting pipe, the wear-resistant swirl vane, the wear-resistant inlet elbow, the wear-resistant inlet reducer pipe, the wear-resistant straight pipe section, the dilute side outlet connecting pipe, the wear-resistant outlet elbow, the wear-resistant outlet reducer pipe and the dense side outlet connecting pipe are all made of wear-resistant materials.
Preferably, the outer part of an output shaft connected with the rotational flow blades of the motor is sleeved with a wear-resistant sleeve.
Compared with the prior art, the utility model discloses obtain following effect: the wear-resistant rotating blades of the utility model are arranged at the outlet of the inlet wear-resistant reducer pipe at the upper part of the outlet of the inlet wear-resistant elbow; under the centrifugal action of the wear-resistant cyclone blades, the dense powder-containing air flow is thrown to the outer side of the air flow by the rotating wear-resistant cyclone blades, the dense air flow and the dilute air flow are formed at the downstream of the wear-resistant cyclone blades, and the two air flows are respectively led to a dense side outlet connecting pipe and a dilute side outlet connecting pipe; the device has simple structure, can efficiently realize the high-efficiency concentration separation of the pulverized coal-containing airflow, improves the concentration of the pulverized coal-containing airflow, and can adjust the concentration ratio of the pulverized coal airflow at both sides of the concentration according to the needs.
Drawings
Fig. 1 is a schematic structural view of the dynamic adjustable shade separator for the powder feeding pipe of the present invention.
Reference numbers in the figures: 1. a motor; 2. a motor support frame; 3. a wear resistant swirl vane; 4. an inlet wear-resistant elbow; 5. a wear resistant inlet reducer; 6. a wear-resistant straight pipe section; 7. a dilute side outlet connecting pipe; 8. a wear-resistant outlet elbow; 9. a wear resistant outlet reducer; 10. a dense side outlet connecting pipe; 11. a wear resistant adjustment door; 12. an inlet connection pipe; 13. a wear-resistant sleeve.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1, a dynamic adjustable concentration separator for a powder feeding pipeline comprises a motor 1, a motor support frame 2, an inlet connecting pipe 12, a wear-resistant swirl vane 3, an inlet wear-resistant elbow 4, a wear-resistant inlet reducer pipe 5, a wear-resistant straight pipe section 6, a dilute side outlet connecting pipe 7, a wear-resistant outlet elbow 8, a wear-resistant outlet reducer pipe 9 and a concentrated side outlet connecting pipe 10, wherein the inlet connecting pipe 12 is communicated with the wear-resistant inlet reducer pipe 5 through the inlet wear-resistant elbow 4, the wear-resistant inlet reducer pipe 5 is connected with the wear-resistant outlet elbow 8 through the wear-resistant straight pipe section 6, the wear-resistant outlet elbow 8 is connected with the concentrated side outlet connecting pipe 10 through the wear-resistant outlet reducer pipe 9, the dilute side outlet connecting pipe 7 is inserted into and communicated with the wear-resistant straight pipe section 6 from the side of the wear-resistant outlet elbow 8, the motor 1 is installed outside the inlet wear-resistant elbow 4 through the motor support frame 2, the output end of the motor 1 penetrates into the wear-resistant straight pipe section 6 from the inlet wear-resistant elbow 4 and fixes the wear-resistant swirl vanes 3.
Further, the thick side outlet connecting pipe 10 is provided with a wear-resistant regulating valve 11.
The beneficial effects of the further technical scheme are that: and a wear-resistant regulating valve 11 is used for regulating the powder flow.
Further, the dilute side outlet connecting pipe 7 is located above the wear-resistant cyclone blade 3, wherein the distance between the wear-resistant cyclone blade and the inlet of the wear-resistant straight pipe section 6 is 1-6 times the diameter of the wear-resistant straight pipe section 6.
Furthermore, the diameters of the wear-resistant straight pipe section 6 and the wear-resistant outlet elbow 8 are 1-2 times of the diameter of the inlet wear-resistant elbow 4.
The beneficial effects of the further technical scheme are that: the powder enters the wear-resistant straight pipe section 6 through the wear-resistant inlet elbow 4 and the wear-resistant inlet reducer pipe 5, the circulating pipeline is enlarged to reduce the flow velocity, and therefore the powder can be better separated during shade separation, if the powder flow velocity is too fast, the wear-resistant cyclone blades 3 cannot timely carry out centrifugal shade dispersion separation on the powder.
Furthermore, the diameters of the dilute side outlet connecting pipe 7 and the concentrated side outlet connecting pipe 10 are smaller than the diameter of the inlet wear-resistant elbow 4.
Further, the inlet connecting pipe 12, the wear-resistant swirl vane 3, the inlet wear-resistant elbow 4, the wear-resistant inlet reducer pipe 5, the wear-resistant straight pipe section 6, the fresh-side outlet connecting pipe 7, the wear-resistant outlet elbow 8, the wear-resistant outlet reducer pipe 9 and the dense-side outlet connecting pipe 10 are all made of wear-resistant materials; the wear-resistant material is high-manganese wear-resistant steel.
Furthermore, a wear-resistant sleeve 13 is sleeved outside an output shaft connected with the motor 1 and the wear-resistant swirl vanes 3.
The beneficial effects of the further technical scheme are that: the wear-resistant sleeve 13 is used for protecting the output shaft of the motor 1 from being worn by powder.
Compared with the prior art, the utility model discloses obtain following effect: the wear-resistant rotating blade 3 of the utility model is arranged at the outlet of the inlet wear-resistant reducer pipe 5 at the upper part of the outlet of the inlet wear-resistant elbow 4; under the action of the abrasion-resistant swirl blades 3, the powder-containing air flow from the upstream is thrown to the outer side (the circumferential edge of the air flow) of the air flow by the rotating abrasion-resistant swirl blades 3, an outer dense air flow and an inner dilute air flow are formed at the downstream of the abrasion-resistant swirl blades 3, and the two air flows are respectively led to a dense-side outlet connecting pipe 10 and a dilute-side outlet connecting pipe 7; simple structure, can high-efficient thick and thin separation that realizes the dusty air current, improve dusty air current concentration to can adjust the thick and thin ratio of thick and thin both sides buggy air current as required (accessible adjusting motor 1's rotational speed, and then adjust wear-resisting whirl blade 3's rotational speed, the rotational speed is different and then just different to the centrifugation of powder, and powder thick and thin separation degree is just different).
The working principle is as follows:
the abrasion-resistant rotational flow blade 3 is driven by the motor 1 to rotate, the motor 1 is fixed at the lower part of the abrasion-resistant elbow 4 by the motor support frame 2, the powder-containing air flow enters the inlet abrasion-resistant elbow 4 and enters the abrasion-resistant straight pipe section 6 through the abrasion-resistant inlet reducer pipe 5, solid particles in the air flow are thrown to the periphery under the action of the abrasion-resistant rotational flow blade 3, the light powder air in the central area above the rotational flow blade 3 flows through the light side outlet connecting pipe 7 to be led out of the separator (dense-dilute separation principle, the larger the powder particles are, the larger the centrifugal force is, the larger the powder particles are, the powder particles are dispersed to the peripheral position, the larger the particle size is, the smaller the centrifugal force is, the dispersion to the peripheral direction is, the particle density of the middle part is, the powder particle density separation effect is achieved), the thick powder gas flow in the peripheral area above the wear-resistant cyclone blade 3 is led out of the separator through a wear-resistant outlet elbow 8, a wear-resistant outlet reducer pipe 9 and a thick side outlet connecting pipe 10; the dense side outlet connecting pipe 10 is provided with a wear-resistant adjusting door 11 which can adjust the air quantity at both sides of the dense side and the dilute side.
The cyclone abrasion-resistant blades 3 are arranged in the abrasion-resistant straight pipe section 6, the powder feeding airflow is rotated through the rotation of the cyclone abrasion-resistant blades 3, solid particles in the airflow are impacted and driven by the cyclone abrasion-resistant blades 3 and are mainly distributed in the outer area of the airflow under the action of centrifugal force, the concentration of the powder particles on the outer side can be changed by adjusting the rotation speed of the cyclone abrasion-resistant blades 3, the thick powder airflow on the outer side is led out of a separator through a thick side outlet connecting pipe 10, an air quantity abrasion-resistant adjusting door 11 is arranged on the thick side outlet connecting pipe 10, and the air quantity of a thick side outlet can be adjusted by the abrasion-resistant adjusting door 11; the inner light powder gas stream is led out of the separator through the light side outlet connection 7.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (7)
1. The utility model provides a developments are adjustable dense and weak separator for sending powder pipeline which characterized in that: comprises a motor (1), a motor support frame (2), an inlet connecting pipe (12), wear-resistant swirl vanes (3), an inlet wear-resistant elbow (4), a wear-resistant inlet reducer pipe (5), a wear-resistant straight pipe section (6), a fresh side outlet connecting pipe (7), a wear-resistant outlet elbow (8), a wear-resistant outlet reducer pipe (9) and a concentrated side outlet connecting pipe (10), wherein the inlet connecting pipe (12) is communicated with the wear-resistant inlet reducer pipe (5) through the inlet wear-resistant elbow (4), the wear-resistant inlet reducer pipe (5) is connected with the wear-resistant outlet elbow (8) through the wear-resistant straight pipe section (6), the wear-resistant outlet elbow (8) is connected with the concentrated side outlet connecting pipe (10) through the wear-resistant outlet reducer pipe (9), the fresh side outlet connecting pipe (7) is inserted and communicated with the wear-resistant straight pipe section (6) from the side edge of the wear-resistant outlet elbow (8), and the motor (1) is installed outside the inlet wear-resistant elbow (4) through the motor support frame (2), the output end of the motor (1) penetrates into the wear-resistant straight pipe section (6) from the inlet wear-resistant elbow (4) and fixes the wear-resistant swirl vanes (3).
2. A dynamically adjustable dilution separator for a powder feed conduit as recited in claim 1, wherein: the concentrated side outlet connecting pipe (10) is provided with a wear-resistant regulating valve (11).
3. A dynamically adjustable dilution separator for a powder feed conduit as recited in claim 1, wherein: the fresh side outlet connecting pipe (7) is located above the wear-resistant cyclone blade (3), wherein the distance between the wear-resistant cyclone blade and the inlet of the wear-resistant straight pipe section (6) is 1-6 times of the diameter of the wear-resistant straight pipe section (6).
4. A dynamically adjustable dilution separator for a powder feed conduit as recited in claim 1, wherein: the diameters of the wear-resistant straight pipe section (6) and the wear-resistant outlet elbow (8) are 1-2 times of the diameter of the inlet wear-resistant elbow (4).
5. A dynamically adjustable dilution separator for a powder feed conduit as recited in claim 1, wherein: the diameters of the dilute side outlet connecting pipe (7) and the concentrated side outlet connecting pipe (10) are smaller than the diameter of the inlet wear-resistant elbow (4).
6. A dynamically adjustable dilution separator for a powder feed conduit as recited in claim 1, wherein: and a wear-resistant sleeve (13) is sleeved outside an output shaft connected with the motor (1) and the wear-resistant swirl vane (3).
7. A dynamically adjustable dilution separator for a powder feed conduit as recited in claim 1, wherein: the inlet connecting pipe (12), the wear-resistant swirl vane (3), the wear-resistant inlet elbow (4), the wear-resistant inlet reducer pipe (5), the wear-resistant straight pipe section (6), the fresh side outlet connecting pipe (7), the wear-resistant outlet elbow (8), the wear-resistant outlet reducer pipe (9) and the dense side outlet connecting pipe (10) are all made of wear-resistant materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996496.4U CN217302779U (en) | 2021-08-23 | 2021-08-23 | Dynamic adjustable shade separator for powder feeding pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996496.4U CN217302779U (en) | 2021-08-23 | 2021-08-23 | Dynamic adjustable shade separator for powder feeding pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217302779U true CN217302779U (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121996496.4U Active CN217302779U (en) | 2021-08-23 | 2021-08-23 | Dynamic adjustable shade separator for powder feeding pipeline |
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|---|---|
| CN (1) | CN217302779U (en) |
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2021
- 2021-08-23 CN CN202121996496.4U patent/CN217302779U/en active Active
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