Rotary telescopic gas collection device

Abstract

The invention relates to the technical field of dust treatment, in particular to a rotary telescopic gas collection device which comprises a rotary separation box. The dust control flow guide plates are arranged in the rotary separation box; the rotary driving shaft is arranged on the end side of the rotary separation box and is used for driving the rotary separation box to rotate; the fine dust discharge pipe is used for leading out the first dust separated by the dust control guide plate; the negative pressure dust removal system is connected with the fine dust discharge pipe and is used for providing negative pressure; the telescopic gas collecting hood is movably arranged in the rotary separation box and is used for collecting dust generated in the unloading process of the unloading vehicle under the action of negative pressure after extending out of the rotary separation box and conveying the dust into the rotary separation box for separation treatment; the coarse ash discharge pipe is used for leading out the second dust separated by the dust control guide plate; and the coarse ash collecting box is communicated with an ash outlet in the vertical end of the coarse ash discharging pipe and is used for collecting second dust. By means of the device, efficient dust removal can be achieved on the basis that operation of other equipment in a workshop is not affected.

Description

Technical Field

[0001] This invention relates to the field of dust control technology, specifically to a rotary telescopic gas collection device, and more specifically to a rotary telescopic gas collection device for loading and unloading waste catalysts. Background Technology

[0002] In industries such as power and chemicals, coal-fired flue gas denitrification catalysts need to be replaced regularly, and spent catalysts generally require regeneration. Spent catalysts are typically transported to the regeneration plant in modular form by truck. During transportation, the catalyst modules suffer some damage, and residual fly ash and other powders remain inside, leading to the generation of spent catalyst loading and unloading dust during unloading (involving module handling and turning). This dust mainly consists of fly ash and rare metal powders such as palladium, rhodium, and platinum, posing an extremely high risk; inhalation can cause serious health problems. Conventional dust suppression spraying is ineffective in collecting this dust, and the changes in catalyst moisture content caused by spraying can affect subsequent regeneration processes. However, fixed suction hood type negative pressure dust removal also has many limitations. For example, when loading and unloading materials in limited spaces such as factories, workshops or warehouses, such as when overhead cranes frequently move around in workshops, if the fixed suction hood is placed in the workshop space and at a certain height above the ground, it will affect the operation of the overhead cranes and other equipment operations. In addition, the existing fixed suction hood type negative pressure dust removal also has the problem of poor dust removal effect.

[0003] Therefore, there is an urgent need for a rotary telescopic gas collection device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing dust treatment equipment has poor treatment effect and affects the operation of equipment such as overhead cranes in the workshop when dealing with dust generated during the loading and unloading of waste catalysts, and to provide a rotary telescopic gas collection device.

[0005] To achieve the above objectives, the present invention provides a rotary telescopic gas collection device, the rotary telescopic gas collection device comprising: Rotary separator; Multiple dust control guide plates are arranged at preset intervals inside the rotary separator to separate dust particles of different sizes in the airflow entering the rotary separator. A rotary drive shaft is disposed on the end side of the rotary separation box and is used to drive the rotary separation box to rotate at a set angle; The fine dust discharge pipe is movably connected to the rotary separation box and is used to discharge the first dust separated by the dust control guide plate. A negative pressure dust removal system is connected to the fine dust discharge pipe to provide negative pressure and treat the first dust. A telescopic dust collection hood is movably installed inside the rotary separator. After extending out of the rotary separator, it collects the dust generated during the unloading process of the unloading vehicle under negative pressure and transports it into the rotary separator for separation. The coarse ash discharge pipe has its horizontal end passing through the hollow rotary drive shaft and extending into the interior of the rotary separation box, for discharging the second dust separated by the dust control guide plate; The coarse ash collection box is connected to the ash outlet at the vertical end of the coarse ash discharge pipe and is used to collect the second dust.

[0006] Preferably, the dust control guide plate is arc-shaped, and the tangential direction of the ends of the plurality of dust control guide plates coincides with the center line of the horizontal end of the coarse ash discharge pipe.

[0007] Preferably, the thickness of the dust control guide plate is 5-15mm, and the spacing between multiple dust control guide plates is 50-150mm.

[0008] Preferably, the negative pressure dust removal system controls the flow velocity of the dust-laden airflow impacting the dust control guide plate to be 15-30 m / s.

[0009] Preferably, the dust control guide plate is made of 50-70% by weight of silicone rubber, 10-20% by weight of titanium dioxide, 5-10% by weight of tourmaline and 2-5% by weight of fluorocarbon compound.

[0010] Preferably, the silicone rubber is foamed methyl vinyl silicone rubber and / or foamed methyl phenyl vinyl silicone rubber, the titanium dioxide is nano-sized TiO2, and the fluorocarbon compound is at least one of fluorocarbon resin, polyvinylidene fluoride, and polytetrafluoroethylene.

[0011] Preferably, the rotary telescopic gas collection device further includes a negative pressure thin tube, which is disposed between the fine dust discharge pipe and the coarse dust discharge pipe, for recovering the first dust mixed in the coarse dust discharge pipe under the action of negative pressure, and driving the second dust to move along the coarse dust discharge pipe.

[0012] Preferably, the telescopic gas collection hood is movably mounted inside the rotating separation box via two sets of spring-driven assemblies, and the two sets of spring-driven assemblies are located on both sides inside the rotating separation box; The spring drive assembly includes: The support rod has a spring groove opened along the axial direction inside, and the bottom end of the groove of the support rod is connected to one side of the interior of the rotating separation box; A spring is disposed inside the spring groove and connected to the bottom of the spring groove; A sliding rod, one end of which extends into the spring groove and is connected to the spring, and the other end of which is connected to one side inside the telescopic gas collection hood, is used to allow the telescopic gas collection hood to be movably positioned inside the rotating separation box under the action of the spring force.

[0013] Preferably, the first dust outlet of the rotary separator is connected to a conical hopper, the end of the conical hopper is provided with a circular adapter, the inlet end of the fine dust discharge pipe is provided with a circular adapter constriction that matches the circular adapter, the surface of the circular adapter constriction is fitted with a ring-shaped tray, and the ring-shaped tray is filled with elastic clay.

[0014] Preferably, the elastic putty is modified polyvinyl chloride putty and / or modified polyurethane putty; the elastic putty is made of 70-80% by weight putty, 15-25% by weight talc powder and 5-10% by weight methyl silicone oil.

[0015] According to the above technical solution, based on the rotary telescopic gas collection device, the rotary separation box is driven to rotate by the rotary drive shaft. During the unloading stage, the rotary separation box can be laid flat by rotation, and the telescopic gas collection hood inside can be extended for dust collection. During the non-unloading stage, the rotary separation box can be erected by rotation, and the telescopic gas collection hood inside can be retracted, thereby effectively reducing the space occupancy rate in the workshop and avoiding affecting the operation of other equipment. Furthermore, by setting a dust control guide plate inside the rotary separation box, coarse dust (secondary dust) and fine dust (primary dust) can be separated, thereby achieving the graded treatment or utilization of dust of different particle sizes. This not only improves the dust removal effect based on separation, but also has important significance for the recycling and utilization of special dust such as catalyst loading and unloading dust. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the rotary telescopic gas collection device in the non-unloading stage; Figure 2 This is a schematic diagram of the rotary telescopic gas collection device during the unloading stage. Figure 3 This is a three-dimensional structural diagram of the rotary telescopic gas collection device in the non-unloading stage; Figure 4 This is a three-dimensional structural diagram of the rotary telescopic gas collection device during the unloading stage; Figure 5 This is a schematic diagram of the spring drive assembly of the rotary telescopic gas collection device; Figure 6 This is a schematic diagram of the shielding cover inside the coarse ash discharge pipe of the rotary telescopic gas collection device.

[0017] Explanation of reference numerals in the attached figures 1. Unloading vehicle; 2. Telescopic dust collection hood; 3. Rotary separation box; 4. Fine dust discharge pipe; 5. Coarse dust discharge pipe; 51. Shielding cover; 6. Coarse dust collection box; 7. Negative pressure fine pipe; 8. Conical hopper; 9. Circular adapter; 10. Circular adapter neck; 11. Ring-shaped pallet; 12. Rotary drive shaft; 13. Dust control guide plate; 14. Spring drive assembly; 141. Support rod; 142. Slide rod; 143. Spring. Detailed Implementation

[0018] The following provides a detailed description of specific embodiments of the present invention. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the present invention.

[0019] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean a non-exclusive inclusion, the possibility of the presence or addition of one or more other features, units, components, and / or combinations thereof.

[0020] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] The first aspect of this invention provides a rotary telescopic gas collection device, such as... Figure 1-6 As shown, the rotary telescopic gas collection device includes: Rotary separator 3; Multiple dust control guide plates 13 are arranged at preset intervals inside the rotary separation box 3 to separate dust particles of different sizes in the airflow entering the rotary separation box 3. A rotary drive shaft 12 is disposed on the end side of the rotary separation box 3 and is used to drive the rotary separation box 3 to rotate at a set angle; The fine dust discharge pipe 4 is movably connected to the rotary separation box 3 and is used to discharge the first dust separated by the dust control guide plate 13. A negative pressure dust removal system is connected to the fine dust discharge pipe 4 to provide negative pressure and treat the first dust. The telescopic dust collection hood 2 is movably installed inside the rotary separator 3. After extending out of the rotary separator 3, it collects the dust generated during the unloading process of the unloading vehicle 1 under negative pressure and transports it to the interior of the rotary separator 3 for separation. The coarse ash discharge pipe 5 has its horizontal end passing through the hollow rotary drive shaft 12 and extending into the interior of the rotary separation box 3, for discharging the second dust separated by the dust control guide plate 13; The coarse ash collection box 6 is connected to the ash outlet at the vertical end of the coarse ash discharge pipe 5 and is used to collect the second dust.

[0022] According to the above technical solution, based on the rotary telescopic gas collection device, the rotary separation box is driven to rotate by the rotary drive shaft. During the unloading stage, the rotary separation box can be laid flat by rotation, and the telescopic gas collection hood inside can be extended for dust collection. During the non-unloading stage, the rotary separation box can be erected by rotation, and the telescopic gas collection hood inside can be retracted, thereby effectively reducing the space occupancy rate in the workshop and avoiding affecting the operation of other equipment. Furthermore, by setting a dust control guide plate inside the rotary separation box, coarse dust (secondary dust) and fine dust (primary dust) can be separated, thereby achieving the graded treatment or utilization of dust of different particle sizes. This not only improves the dust removal effect based on separation, but also has important significance for the recycling and utilization of special dust such as catalyst loading and unloading dust.

[0023] In the rotary telescopic gas collection device described in this invention, preferably, as follows: Figure 3 and Figure 4 As shown, the dust control guide plate 13 is arc-shaped, and the tangent direction of the ends of multiple dust control guide plates 13 coincides with the center line of the horizontal end of the coarse ash discharge pipe 5. Thus, in practical applications, the dust-laden airflow entering the rotary separation box 3 through the telescopic air collection hood 2 can be better separated under the action of negative pressure.

[0024] Specifically, during the unloading stage, the dust-laden airflow enters the rotary separation box 3 through the telescopic air collection hood 2 and impacts the surface of the dust control guide plate 13. The kinetic energy of the dust-laden airflow is quickly absorbed by the dust control guide plate 13 due to the damping effect. The fine dust that loses kinetic energy is carried by the airflow through the fine dust discharge pipe 4, which is movably connected to the lower part of the rotary separation box 3, and enters the negative pressure dust removal system for deep treatment. Meanwhile, the coarse particles that have not completely lost kinetic energy enter the coarse ash discharge pipe 5 under the guiding effect of the arc-shaped dust control guide plate 13 and are finally discharged into the coarse ash collection box 6.

[0025] In another preferred embodiment, the thickness of the dust control guide plate 13 is 5-15mm, and the spacing between multiple dust control guide plates 13 is 50-150mm, so that fine dust and coarse dust in the dust-laden airflow can be better separated in practical applications.

[0026] More preferably, the negative pressure dust removal system controls the flow velocity of the dust-laden airflow impacting the dust control guide plate 13 to be 15-30 m / s, preferably 18-25 m / s. By further controlling the flow velocity of the dust-laden airflow, it can work synergistically with the dust control guide plate 13 to better separate fine and coarse dust in the dust-laden airflow.

[0027] In another preferred embodiment, the dust control deflector 13 is made of 50-70% by weight of silicone rubber, 10-20% by weight of titanium dioxide, 5-10% by weight of tourmaline and 2-5% by weight of fluorocarbon compound, thereby controlling the smoothness and elasticity of the surface of the dust control deflector 13 to better separate fine dust and coarse dust in the dust-laden airflow during the impact deflection process.

[0028] More preferably, the silicone rubber is foamed methyl vinyl silicone rubber and / or foamed methyl phenyl vinyl silicone rubber, the titanium dioxide is nano-sized TiO2, and the fluorocarbon compound is at least one of fluorocarbon resin, polyvinylidene fluoride, and polytetrafluoroethylene, thereby better separating fine and coarse dust in the dust-laden airflow during the impact guiding process.

[0029] In the rotary telescopic gas collection device of the present invention, preferably, the rotary telescopic gas collection device further includes a negative pressure thin tube 7, which is disposed between the fine dust discharge pipe 4 and the coarse dust discharge pipe 5, for recovering the first dust mixed in the coarse dust discharge pipe 5 under the action of negative pressure, and driving the second dust to move along the coarse dust discharge pipe 5, thereby further improving the separation and dust removal effect, and improving the separation and dust removal rate by increasing the movement rate of the coarse dust.

[0030] In another preferred embodiment, such as Figure 6 As shown, a shield 51 is provided at the connection between the coarse ash discharge pipe 5 and the negative pressure thin pipe 7, so that while effectively recovering the fine ash mixed in the coarse ash discharge pipe 5 based on negative pressure, the coarse ash can also prevent the negative pressure thin pipe 7 from being blocked.

[0031] In the rotary telescopic gas collection device of the present invention, preferably, the telescopic gas collection hood 2 is movably disposed inside the rotary separation box 3 by two sets of spring drive assemblies 14, and the two sets of spring drive assemblies 14 are disposed on both sides inside the rotary separation box 3.

[0032] Specifically, such as Figure 5 As shown, the spring drive assembly 14 includes: The support rod 141 has a spring groove axially formed inside it, and the bottom end of the groove of the support rod 141 is connected to one side of the interior of the rotating separation box 3. Spring 143 is disposed inside the spring groove and connected to the bottom of the spring groove; The slide bar 142 has one end extending into the spring groove and connected to the spring 143, and the other end connected to one side inside the telescopic gas collection hood 2, so that the telescopic gas collection hood 2 can be movably set inside the rotating separation box 3 under the action of the spring force.

[0033] In this embodiment of the invention, based on the above design, during the non-unloading stage, the rotating separation box 3 is erected, and the telescopic gas collection hood 2 and the slide rod 142 compress the spring 143 under the action of gravity, so that the telescopic gas collection hood 2 retracts into the rotating separation box 3. During the unloading stage, the rotating separation box 3 is gradually placed horizontally from vertical. During this process, the elastic force of the compressed spring 143 is gradually released, thereby pushing the telescopic gas collection hood 2 to extend out of the rotating separation box 3. That is, the telescopic gas collection hood 2 is retracted by its own gravity and extended by its elastic force, without any external power input.

[0034] In the rotary telescopic gas collection device of the present invention, preferably, the first dust outlet of the rotary separation box 3 is connected to a conical hopper 8, the end of the conical hopper 8 is provided with a circular adapter 9, the inlet end of the fine dust discharge pipe 4 is provided with a circular adapter constriction 10 matching the circular adapter 9, the surface of the circular adapter constriction 10 is fitted with an annular tray 11, the annular tray 11 is filled with elastic mortar, so that when the rotary separation box 3 rotates 90 degrees under the drive of the rotary drive shaft 12 and is leveled, the rotary separation box 3 and the fine dust discharge pipe 4 can be quickly connected, and the connection is sealed and has a shock absorption effect through the elastic mortar.

[0035] More preferably, the elastic sealant is made of 70-80% by weight of sealant, 15-25% by weight of talc powder, and 5-10% by weight of methyl silicone oil. This further enhances the sealant's shock absorption and sealing functions by modifying it to increase lubrication, thus preventing the sealant from being carried out due to frequent opening and closing of the circular adapter 9 of the rotating separation box 3 and the circular adapter constriction 10 of the fine dust discharge pipe 4, which would affect the sealing and shock absorption effect. Specifically, the elastic sealant can be modified polyvinyl chloride sealant and / or modified polyurethane sealant.

[0036] The present invention will be described in detail below through embodiments, but the scope of protection of the present invention is not limited thereto.

[0037] Example 1 Adopting such Figure 1-6 The rotary telescopic gas collection device shown is used for dust treatment during the loading and unloading of spent denitrification catalysts. Specifically, the rotary telescopic gas collection device includes: Rotary separator 3; Multiple dust control guide plates 13 are arranged at preset intervals inside the rotary separation box 3 to separate dust particles of different sizes in the airflow entering the rotary separation box 3. A rotary drive shaft 12 is disposed on the end side of the rotary separation box 3 and is used to drive the rotary separation box 3 to rotate at a set angle; The fine dust discharge pipe 4 is movably connected to the rotary separation box 3 and is used to discharge the first dust separated by the dust control guide plate 13. A negative pressure dust removal system is connected to the fine dust discharge pipe 4 to provide negative pressure and treat the first dust. The telescopic dust collection hood 2 is movably installed inside the rotary separator 3. After extending out of the rotary separator 3, it collects the dust generated during the unloading process of the unloading vehicle 1 under negative pressure and transports it to the interior of the rotary separator 3 for separation. The coarse ash discharge pipe 5 has its horizontal end passing through the hollow rotary drive shaft 12 and extending into the interior of the rotary separation box 3, for discharging the second dust separated by the dust control guide plate 13; The coarse ash collection box 6 is connected to the ash outlet at the vertical end of the coarse ash discharge pipe 5 and is used to collect the second dust. Specifically, the telescopic gas collection hood 2 is movably installed inside the rotating separation box 3 via two sets of spring drive assemblies 14, and the two sets of spring drive assemblies 14 are installed on both sides inside the rotating separation box 3. The spring drive assembly 14 includes: The support rod 141 has a spring groove axially formed inside it, and the bottom end of the groove of the support rod 141 is connected to one side of the interior of the rotating separation box 3. Spring 143 is disposed inside the spring groove and connected to the bottom of the spring groove; The slide bar 142 has one end extending into the spring groove and connected to the spring 143, and the other end connected to one side inside the telescopic gas collection hood 2, so that the telescopic gas collection hood 2 can be movably set inside the rotating separation box 3 under the action of the spring force. The first dust outlet of the rotary separation box 3 is connected to a conical hopper 8. A circular adapter 9 is provided at the end of the conical hopper 8. The inlet end of the fine dust discharge pipe 4 is provided with a circular adapter constriction 10 that matches the circular adapter 9. A ring-shaped tray 11 is fitted on the surface of the circular adapter constriction 10. The ring-shaped tray 11 is filled with elastic putty. The elastic putty is made of 75% by weight putty, 18% by weight talc powder and 7% by weight methyl silicone oil.

[0038] In practical applications, during the unloading stage, the rotating drive shaft 12 drives the rotating separation box 3 to rotate 90 degrees, gradually changing from vertical to horizontal. During this process, the compressed spring 143 gradually releases its elasticity, thereby pushing the telescopic dust collection hood 2 to extend from the rotating separation box 3 and be placed on top of the unloading vehicle 1. At the same time, the circular adapter 9 of the rotating separation box 3 and the circular adapter constriction 10 of the fine dust discharge pipe 4 are sealed together. Then, under the negative pressure of the negative pressure dust removal system, the dust generated during the unloading process of the unloading vehicle 1 is transported to the interior of the rotating separation box 3 and separated by the dust control guide plate 13. The separated fine dust (first dust) enters the negative pressure dust removal system for deep processing through the conical hopper 8 and the fine dust discharge pipe 4. The separated coarse dust (second dust) is discharged through the coarse dust discharge pipe and transported to the coarse dust collection box 6.

[0039] Compared to existing technologies, the rotary telescopic dust collection device described in this invention uses a rotary drive shaft to rotate the rotary separation box. During the unloading stage, the rotation allows the rotary separation box to be laid flat, extending the telescopic dust collection hood inside for dust collection. During non-unloading stages, the rotation allows the rotary separation box to be erected, retracting the telescopic dust collection hood inside. This effectively reduces the space occupancy rate in the workshop and avoids affecting the operation of other equipment. Furthermore, by setting a dust control guide plate inside the rotary separation box, coarse dust (secondary dust) and fine dust (primary dust) can be separated, enabling the graded treatment or utilization of dust of different particle sizes. This not only improves dust removal efficiency through separation but also has significant implications for the recycling and utilization of special dust such as catalyst loading and unloading dust.

[0040] Example 2 The implementation is similar to Embodiment 1, except that the dust control guide plate 13 is arc-shaped, and the tangent direction of the ends of the plurality of dust control guide plates 13 coincides with the center line of the horizontal end of the coarse ash discharge pipe 5.

[0041] Compared with the solution in Example 1, the rotary telescopic gas collection device described in this invention can further improve the dust removal effect on the dust generated during the loading and unloading of waste catalysts.

[0042] Example 3 The implementation follows the same procedure as Embodiment 2, except that the thickness of the dust control guide plate 13 is 10mm, the spacing between the plurality of dust control guide plates 13 is 100mm, and the negative pressure dust removal system controls the flow velocity of the dust-laden airflow impacting the dust control guide plate 13 to be 20m / s.

[0043] Compared with the solution in Example 2, the rotary telescopic gas collection device described in this invention can further improve the dust removal effect on the dust generated during the loading and unloading of waste catalysts.

[0044] Example 4 The dust control guide plate 13 is implemented in accordance with Example 3, except that it is made of 70% by weight silicone rubber, 18% by weight titanium dioxide, 9% by weight tourmaline and 3% by weight fluorocarbon compound; the silicone rubber is foamed methyl vinyl silicone rubber, the titanium dioxide is nano-sized TiO2 and the fluorocarbon compound is fluorocarbon resin.

[0045] Compared with the solution in Example 3, the rotary telescopic gas collection device described in this invention can further improve the dust removal effect on the dust generated during the loading and unloading of waste catalysts.

[0046] Example 5 The implementation is similar to Embodiment 4, but with the difference that the rotary telescopic gas collection device further includes a negative pressure thin tube 7, which is disposed between the fine dust discharge pipe 4 and the coarse dust discharge pipe 5. It is used to recover the first dust mixed in the coarse dust discharge pipe 5 under the action of negative pressure, and to drive the second dust to move along the coarse dust discharge pipe 5.

[0047] Compared with the scheme in Example 4, the rotary telescopic gas collection device described in this invention can further improve the dust removal effect and efficiency of dust generated during the loading and unloading of waste catalysts.

[0048] The rotary telescopic dust collection device provided by this invention drives a rotary separation box to rotate via a rotary drive shaft. During the unloading stage, the rotary separation box can be leveled by rotation, and the telescopic dust collection hood inside can be extended for dust collection. During the non-unloading stage, the rotary separation box can be erected by rotation, and the telescopic dust collection hood inside can be retracted, thereby effectively reducing the space occupancy rate in the workshop and avoiding interference with the operation of other equipment. Furthermore, by setting a dust control guide plate inside the rotary separation box, coarse dust and fine dust can be separated, thereby achieving the graded treatment or utilization of dust with different particle sizes. This not only improves the dust removal effect based on separation, but also has important significance for the recycling and utilization of special dust such as catalyst loading and unloading dust.

[0049] The preferred embodiments of the present invention have been described in detail above; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention. To avoid unnecessary repetition, the present invention will not describe all possible combinations separately. However, these simple modifications and combinations should also be considered as part of the content disclosed in this invention and are all within the protection scope of this invention.

Claims

1. A rotary telescopic gas collection device, characterized in that, The rotary telescopic gas collection device includes: Rotary separator (3); Multiple dust control guide plates (13) are arranged at preset intervals inside the rotary separation box (3) to separate dust particles of different sizes in the airflow entering the rotary separation box (3); A rotary drive shaft (12) is disposed on the end side of the rotary separation box (3) and is used to drive the rotary separation box (3) to rotate at a set angle; The fine dust discharge pipe (4) is movably connected to the rotary separation box (3) and is used to discharge the first dust separated by the dust control guide plate (13); A negative pressure dust removal system is connected to the fine dust discharge pipe (4) to provide negative pressure and treat the first dust. The telescopic gas collection hood (2) is movably installed inside the rotary separator (3) and is used to collect the dust generated during the unloading process of the unloading vehicle (1) under the action of negative pressure after extending out of the rotary separator (3), and transport it to the interior of the rotary separator (3) for separation treatment; The coarse ash discharge pipe (5) has its horizontal end passing through the hollow rotary drive shaft (12) and extending into the interior of the rotary separation box (3) for discharging the second dust separated by the dust control guide plate (13); The coarse ash collection box (6) is connected to the ash outlet at the vertical end of the coarse ash discharge pipe (5) and is used to collect the second dust.

2. The rotary telescopic gas collection device according to claim 1, characterized in that, The dust control guide plate (13) is arc-shaped, and the tangent direction of the ends of the multiple dust control guide plates (13) coincides with the center line of the horizontal end of the coarse ash discharge pipe (5).

3. The rotary telescopic gas collection device according to claim 1, characterized in that, The thickness of the dust control guide plate (13) is 5-15mm, and the spacing between multiple dust control guide plates (13) is 50-150mm.

4. The rotary telescopic gas collection device according to claim 1 or 3, characterized in that, The negative pressure dust removal system controls the flow velocity of the dust-laden airflow impacting the dust control guide plate (13) to be 15-30 m / s.

5. The rotary telescopic gas collection device according to claim 1, characterized in that, The dust control guide plate (13) is made of 50-70% by weight of silicone rubber, 10-20% by weight of titanium dioxide, 5-10% by weight of tourmaline and 2-5% by weight of fluorocarbon compound.

6. The rotary telescopic gas collecting device according to claim 5, characterized in that, The silicone rubber is foamed methyl vinyl silicone rubber and / or foamed methyl phenyl vinyl silicone rubber, the titanium dioxide is nano-sized TiO2, and the fluorocarbon compound is at least one of fluorocarbon resin, polyvinylidene fluoride, and polytetrafluoroethylene.

7. The rotary telescopic gas collecting device according to any one of claims 1-3 and 5-6, characterized in that, The rotary telescopic gas collection device also includes a negative pressure thin tube (7), which is set between the fine dust discharge pipe (4) and the coarse dust discharge pipe (5) to recover the first dust mixed in the coarse dust discharge pipe (5) under the action of negative pressure, and drive the second dust to move along the coarse dust discharge pipe (5).

8. The rotary telescopic gas collection device according to claim 1, characterized in that, The telescopic gas collection hood (2) is movably installed inside the rotating separation box (3) by two sets of spring drive assemblies (14), and the two sets of spring drive assemblies (14) are installed on both sides inside the rotating separation box (3); The spring drive assembly (14) includes: The support rod (141) has a spring groove axially provided inside, and the bottom end of the groove of the support rod (141) is connected to one side of the inside of the rotating separation box (3); A spring (143) is disposed inside the spring groove and connected to the bottom of the spring groove; A sliding rod (142) has one end inserted into the spring groove and connected to the spring (143), and the other end connected to one side inside the telescopic gas collection hood (2), so that the telescopic gas collection hood (2) can be movably set inside the rotating separation box (3) under the action of the spring force.

9. The rotary telescopic gas collection device according to claim 1 or 8, characterized in that, The first dust outlet of the rotary separator (3) is connected to a conical hopper (8), and a circular adapter (9) is provided at the end of the conical hopper (8). The inlet end of the fine dust discharge pipe (4) is provided with a circular adapter constriction (10) that matches the circular adapter (9). A ring-shaped tray (11) is fitted on the surface of the circular adapter constriction (10), and the ring-shaped tray (11) is filled with elastic clay.

10. The rotary telescopic gas collection device according to claim 9, characterized in that, The elastic putty is modified polyvinyl chloride putty and / or modified polyurethane putty; the elastic putty is made of 70-80% by weight putty, 15-25% by weight talc powder and 5-10% by weight methyl silicone oil.

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