Negative pressure feeding mechanism for dust hopper of dust remover
By designing a negative pressure feeding mechanism in the dust collector ash bucket, including protection and barrier devices, the pressure rise of the ash bucket and the material entry problems caused by large air volume are solved, and more efficient dust removal effect and ash bucket protection are achieved.
Patent Information
- Application Number
- CN202421878102.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-05
AI Technical Summary
In the case of large air volume, the working pressure of the dust collector falls into the ash bucket increases, the filter bag is prone to clogging, and other materials may enter the ash bucket under the negative pressure, affecting the treatment effect.
A negative pressure feeding mechanism for dust collector ash drop bucket is designed, including feed pipe, protective device, air intake pipe, barrier device and connecting pipe. The protective device initially filters the air flow, while the barrier device slows the flow rate of the air flow, prevents materials from entering the ash bucket and reduces the working pressure of the ash bucket.
It effectively prevents materials from entering the ash bucket, reduces the working pressure of the ash bucket, improves dust removal efficiency, prevents dust from overflowing, and reduces the pollution of the air by dust.
Smart Images
Figure CN223010100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust collectors, in particular to a negative pressure feeding mechanism for a dust hopper of a dust collector. Background Art
[0002] A dust collector is a device that separates dust from flue gas. The performance of a dust collector is expressed by the amount of gas that can be processed, the resistance loss when the gas passes through the dust collector, and the dust removal efficiency. Dust collectors are commonly used facilities in boilers and industrial production. When working, the dust-containing gas enters the ash hopper through the air duct.
[0003] In the prior art, the dust hopper of a dust collector is used to collect and process dust. However, in the case of a large air volume, the working pressure of the ash hopper rises, the filter bag is easily blocked, and under the drive of negative pressure, other materials may enter the inside of the ash hopper, affecting the processing effect of the ash hopper. To solve the above problems, we propose a negative pressure feeding mechanism for a dust hopper of a dust collector. Summary of the Utility Model
[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve its technical problems is: a negative pressure feeding mechanism for a dust hopper of a dust collector, including a feed pipe; a protection device, the bottom of the protection device is fixedly connected to the top of the feed pipe, and the protection device is used for filtering air flow; an air inlet pipe, the bottom of the air inlet pipe is fixedly connected to the top of the protection device, and the air inlet pipe is used for transporting air flow; a blocking device, the outside of the blocking device is fixedly connected to the side of the air inlet pipe away from the protection device, and the blocking device is used for blocking air flow; a connecting pipe, the outside of the connecting pipe is fixedly connected to the side of the blocking device away from the air inlet pipe, and the connecting pipe is used for connecting the feeding mechanism and the dust hopper of the dust collector. By setting the protection device, the air flow driven by negative pressure is preliminarily filtered, and larger other materials in the air flow are intercepted to prevent materials from entering the inside of the ash hopper, and the protection device can block dust to prevent dust from overflowing. By setting the blocking device, the flow rate of the air flow is slowed down, and part of the air flow is blocked by the blocking device to reduce the impact of the air flow on the ash hopper, reduce the passing amount of the air flow, avoid excessive air volume from affecting the filtering effect of the ash hopper, and reduce the working pressure of the ash hopper.
[0005] Preferably, the protection device includes a circular pipe, the bottom of the circular pipe is fixedly connected to the top of the feed pipe, the top of the circular pipe is fixedly connected to the bottom of the air inlet pipe, an anti-overflow component is fixedly connected to the inside of the circular pipe, and a filter plate is fixedly connected to the bottom of the anti-overflow component. The protection device prevents impurities from entering the inside of the ash hopper, reduces the probability of damage to the ash hopper, and protects the ash hopper.
[0006] Preferably, a spiral water pipe is sleeved outside the circular pipe, and a partition plate is fixedly connected to the outside of the circular pipe. Both ends of the spiral water pipe penetrate through the partition plate and extend to the outside. Water flow is sent through the spiral water pipe, and the temperature of the air flow is changed through the water flow, enabling the mechanism to operate in environments with relatively high and low temperatures, thereby increasing the applicability of the device.
[0007] Preferably, the anti-overflow component includes a fixed column, the outside of the fixed column is threadedly connected to the inside of the circular pipe, the bottom of the fixed column is fixedly connected to the top of the filter plate, a rebound spring is fixedly connected to the top of the fixed column, a sliding plate is fixedly connected to the top of the rebound spring, a sliding column is fixedly connected to the bottom of the sliding plate, and the outside of the sliding column is slidably connected to the inside of the fixed column. The anti-overflow component guides the air flow forward. After the air flow passes through, the anti-overflow component can automatically close, preventing dust from overflowing from below, reducing dust pollution to the air, and ensuring the dust removal effect.
[0008] Preferably, the blocking device includes a housing, the outside of the housing is fixedly connected to the side of the intake pipe away from the protection device, the side of the housing away from the intake pipe is fixedly connected to the connecting pipe, a guiding block is fixedly connected to the inside of the housing, and a flow-slowing component is fixedly connected to the side of the inner cavity of the housing close to the connecting pipe. The blocking device blocks the air flow, reducing the flow rate of the air flow, making the flow rate of the air flow relatively stable and not too fast, and avoiding the increased working pressure of the ash hopper due to too fast a flow rate.
[0009] Preferably, the flow-slowing component includes a limiting column, the outside of the limiting column is fixedly connected to the inside of the housing, a buffer spring is fixedly connected to the side of the limiting column close to the guiding block, a movable column is fixedly connected to the side of the buffer spring away from the limiting column, and the inside of the movable column is slidably connected to the outside of the limiting column. By blocking of the movable column, the flow rate of the air flow is slowed down, reducing the impact force of the air flow on the ash hopper, preventing the impact damage of the inhaled substances to the ash hopper, and reducing the working pressure of the ash hopper.
[0010] The beneficial effects of the present utility model are as follows:
[0011] 1. By providing a protection device, the present utility model preliminarily filters the air flow driven by negative pressure, intercepts larger other materials in the air flow, prevents materials from entering the inside of the ash hopper, and the protection device can block dust and prevent dust from overflowing.
[0012] 2. By providing a blocking device, the present utility model slows down the flow rate of the air flow, uses the blocking device to block part of the air flow, reduces the impact of the air flow on the ash hopper, reduces the passing amount of the air flow, avoids too large an air volume affecting the filtering effect of the ash hopper, and reduces the working pressure of the ash hopper. Description of the Drawings
[0013] Figure 1is the front view of the present utility model;
[0014] Figure 2 is the sectional view of the present utility model;
[0015] Figure 3 is the structural sectional view of the protective device of the present utility model;
[0016] Figure 4 is the structural sectional view of the anti-overflow component of the present utility model;
[0017] Figure 5 is the structural sectional view of the blocking device of the present utility model;
[0018] Figure 6 is the structural sectional view of the flow-slowing component of the present utility model.
[0019] In the figure: 1, feed pipe; 2, protective device; 21, circular pipe; 22, anti-overflow component; 221, fixed column; 222, return spring; 223, sliding plate; 224, sliding column; 23, filter plate; 24, partition plate; 25, spiral water pipe; 3, air inlet pipe; 4, blocking device; 41, outer shell; 42, guiding block; 43, flow-slowing component; 431, limiting column; 432, buffer spring; 433, movable column; 5, connecting pipe. Specific embodiments
[0020] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.
[0021] Embodiment:
[0022] Please refer to Figures 1-6, the present utility model provides a technical solution: a negative pressure feeding mechanism for a dust collector ash hopper, including a feeding pipe 1; a protection device 2, the bottom of the protection device 2 is fixedly connected to the top of the feeding pipe 1, and the protection device 2 is used for filtering air flow; an air inlet pipe 3, the bottom of the air inlet pipe 3 is fixedly connected to the top of the protection device 2, and the air inlet pipe 3 is used for transporting air flow; a blocking device 4, the outside of the blocking device 4 is fixedly connected to the side of the air inlet pipe 3 away from the protection device 2, and the blocking device 4 is used for blocking air flow; a connecting pipe 5, the outside of the connecting pipe 5 is fixedly connected to the side of the blocking device 4 away from the air inlet pipe 3, and the connecting pipe 5 is used for connecting the feeding mechanism and the dust collector ash hopper. When in use, negative pressure is provided by the dust collector to drive the air flow. The air flow drives the dust into the inside of the feeding pipe 1. The air flow flows along the feeding pipe 1 into the inside of the protection device 2. After the air flow is filtered by the protection device 2, it flows upward into the inside of the air inlet pipe 3. The air flow flows along the air inlet pipe 3 to the blocking device 4. The blocking device 4 slows down the flow rate of the air flow. The air flow flows along the blocking device 4 into the inside of the connecting pipe 5, and then flows along the connecting pipe 5 into the inside of the dust collector ash hopper. By setting the protection device 2, the air flow driven by negative pressure is preliminarily filtered, and larger other materials in the air flow are intercepted to prevent materials from entering the ash hopper. Moreover, the protection device 2 can block the dust to prevent the dust from overflowing. By setting the blocking device 4, the flow rate of the air flow is slowed down. Part of the air flow is blocked by the blocking device 4, reducing the impact of the air flow on the ash hopper, reducing the air flow passing amount, avoiding excessive air volume and affecting the filtering effect of the ash hopper, and reducing the working pressure of the ash hopper.
[0023] The protection device 2 includes a circular pipe 21. The bottom of the circular pipe 21 is fixedly connected to the top of the feeding pipe 1, and the top of the circular pipe 21 is fixedly connected to the bottom of the air inlet pipe 3. An anti-overflow component 22 is fixedly connected to the inside of the circular pipe 21, and a filter plate 23 is fixedly connected to the bottom of the anti-overflow component 22. When in use, the air flow flows along the feeding pipe 1 into the inside of the circular pipe 21, then flows along the circular pipe 21 to the filter plate 23. Larger impurities in the air flow are intercepted by the filter plate 23. The filtered air flow flows upward along the anti-overflow component 22. By means of the protection device 2, impurities are prevented from entering the ash hopper, reducing the probability of ash hopper damage and protecting the ash hopper.
[0024] A spiral water pipe 25 is sleeved outside the circular pipe 21. An isolation plate 24 is fixedly connected to the outside of the circular pipe 21. Both ends of the spiral water pipe 25 penetrate through the isolation plate 24 and extend to the outside. When in use, if the dust collector operates at a relatively high or low temperature, cold water or hot water can be sent through the spiral water pipe 25 to exchange heat with the air flow and change the temperature of the air flow. The isolation plate 24 is made of heat-insulating material to reduce the heat loss of the water flow. Water flow is sent through the spiral water pipe 25, and the temperature of the air flow is changed by the water flow, enabling the mechanism to operate in environments with relatively high and low temperatures and increasing the applicability of the device.
[0025] The anti-overflow component 22 includes a fixed column 221. The outer side of the fixed column 221 is threadedly connected to the inner side of the circular tube 21. The bottom of the fixed column 221 is fixedly connected to the top of the filter plate 23. The top of the fixed column 221 is fixedly connected with a return spring 222. The top of the return spring 222 is fixedly connected with a sliding plate 223. The bottom of the sliding plate 223 is fixedly connected with a sliding column 224. The outer side of the sliding column 224 is slidably connected to the inner side of the fixed column 221. When in use, the filtered air flow flows upward along the anti-overflow component 22. The air flow flows upward along the fixed column 221 to the sliding column 224, driving the sliding column 224 to slide upward. The sliding column 224 drives the sliding plate 223 to move upward, and the sliding plate 223 stretches the return spring 222. After the air flow passes through, the return spring 222 drives the sliding plate 223 and the sliding column 224 to move downward under the action of its own elastic force, and the sliding column 224 resets. The anti-overflow component 22 guides the air flow forward. The anti-overflow component 22 can automatically close after the air flow passes through, preventing dust from overflowing from below, reducing the pollution of dust to the air, and ensuring the dust removal effect.
[0026] The blocking device 4 includes a housing 41. The outer side of the housing 41 is fixedly connected to the side of the intake pipe 3 away from the protection device 2. The side of the housing 41 away from the intake pipe 3 is fixedly connected to the connecting pipe 5. The inner side of the housing 41 is fixedly connected with a guiding block 42. The side of the inner cavity of the housing 41 close to the connecting pipe 5 is fixedly connected with a flow-slowing component 43. When in use, the air flow flows upward along the circular tube 21 into the intake pipe 3. The air flow flows along the intake pipe 3 to the blocking device 4. The air flow flows forward along the housing 41 in the blocking device 4. The air flow flows along the guiding block 42 inside the housing 41 to the flow-slowing component 43. The blocking device 4 blocks the air flow, reducing the flow rate of the air flow, making the flow rate of the air flow relatively stable and not too fast, and avoiding the increased working pressure of the ash hopper caused by too fast a flow rate.
[0027] The slow-flow component 43 includes a limit post 431. The outer side of the limit post 431 is fixedly connected to the inner side of the outer shell 41. One side of the limit post 431 close to the guiding block 42 is fixedly connected to a buffer spring 432. The side of the buffer spring 432 away from the limit post 431 is fixedly connected to a movable post 433. The inner side of the movable post 433 is slidably connected to the outer side of the limit post 431. During use, the airflow pushes the movable post 433 in the slow-flow component 43 to flow. The movable post 433 moves along the limit post 431 in the direction away from the guiding block 42. The movable post 433 drives the buffer spring 432 to compress. Driven by its own elastic force, the buffer spring 432 has a tendency to drive the movable post 433 to move in the direction of the guiding block 42. The airflow flows into the connecting pipe 5 along the gap between the movable post 433 and the outer shell 41. After the airflow passes, the buffer spring 432 drives the movable post 433 to reset. By blocking of the movable post 433, the flowing speed of the airflow is slowed down, the impact force of the airflow on the ash hopper is reduced, the impact damage of the inhaled matter to the ash hopper is avoided, and the working pressure of the ash hopper is alleviated.
[0028] Working principle:
[0029] During use, negative pressure is provided by the dust collector to drive the airflow to flow. The airflow drives the dust to enter the feeding pipe 1. The airflow flows along the feeding pipe 1 into the circular pipe 21. The airflow flows along the circular pipe 21 to the filter plate 23. Larger impurities in the airflow are intercepted by the filter plate 23. The filtered airflow flows upward along the anti-overflow component 22. The airflow flows upward along the fixed post 221 to the sliding post 224, driving the sliding post 224 to slide upward. The sliding post 224 drives the sliding plate 223 to move upward. The sliding plate 223 stretches the return spring 222. After the airflow passes, the return spring 222 drives the sliding plate 223 and the sliding post 224 to move downward under the action of its own elastic force, and the sliding post 224 resets. During use, if the dust collector operates at a relatively high or low temperature, cold water or hot water can be sent through the spiral water pipe 25 to exchange heat with the airflow to change the temperature of the airflow. The isolation plate 24 is made of heat-insulating material to reduce the heat loss of the water flow;
[0030] The air flow flows upward along the circular pipe 21 into the intake pipe 3, then flows along the intake pipe 3 to the blocking device 4, and then flows forward along the outer shell 41 of the blocking device 4. The air flow flows along the guiding block 42 inside the outer shell 41 to the flow buffering assembly 43. The air flow pushes the movable column 433 in the flow buffering assembly 43 to move. The movable column 433 moves away from the guiding block 42 along the limiting column 431, driving the buffer spring 432 to compress. Driven by its own elastic force, the buffer spring 432 has a tendency to drive the movable column 433 to move towards the guiding block 42. The air flow flows into the connecting pipe 5 through the gap between the movable column 433 and the outer shell 41. After the air flow passes through, the buffer spring 432 drives the movable column 433 to reset, and the air flow flows along the connecting pipe 5 into the dust collector ash hopper.
[0031] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, shall be implemented according to the conventional means in the art.
Claims
1. A negative pressure feeding mechanism for a dust collector ash hopper, characterized in that: include: Feed pipe (1); A protective device (2), the bottom of the protective device (2) being fixedly connected to the top of the feed pipe (1), and the protective device (2) being used to filter airflow; An air intake pipe (3), the bottom of the air intake pipe (3) being fixedly connected to the top of the protective device (2), and the air intake pipe (3) being used to convey airflow; A blocking device (4), the outer side of the blocking device (4) being fixedly connected to a side of the air inlet pipe (3) away from the protective device (2), and the blocking device (4) being used to block airflow; A connecting pipe (5), the outer side of the connecting pipe (5) being fixedly connected to a side of the blocking device (4) away from the air inlet pipe (3), and the connecting pipe (5) being used to connect the feeding mechanism and the dust hopper of the dust collector.
2. A negative pressure feeding mechanism for a dust hopper of a dust collector according to claim 1, characterized in that: The protective device (2) comprises a circular tube (21), the bottom of the circular tube (21) being fixedly connected to the top of the feed pipe (1), the top of the circular tube (21) being fixedly connected to the bottom of the air intake pipe (3), an anti-overflow component (22) being fixedly connected to the inner side of the circular tube (21), and a filter plate (23) being fixedly connected to the bottom of the anti-overflow component (22).
3. A negative pressure feeding mechanism for a dust hopper of a dust collector according to claim 2, characterized in that: The outer side of the circular tube (21) is sleeved with a spiral water pipe (25), the outer side of the circular tube (21) is fixedly connected to an isolation plate (24), and both ends of the spiral water pipe (25) penetrate the isolation plate (24) and extend to the outside.
4. A negative pressure feeding mechanism for a dust hopper of a dust collector according to claim 2, characterized in that: The overflow prevention assembly (22) comprises a fixed column (221), the outer side of the fixed column (221) being threadedly connected to the inner side of the circular tube (21), the bottom of the fixed column (221) being fixedly connected to the top of the filter plate (23), the top of the fixed column (221) being fixedly connected to a rebound spring (222), the top of the rebound spring (222) being fixedly connected to a sliding plate (223), the bottom of the sliding plate (223) being fixedly connected to a sliding column (224), and the outer side of the sliding column (224) being slidably connected to the inner side of the fixed column (221).
5. A negative pressure feeding mechanism for a dust hopper of a dust collector according to claim 1, characterized in that: The blocking device (4) comprises a shell (41), the outer side of the shell (41) being fixedly connected to a side of the air intake pipe (3) away from the protective device (2), the side of the shell (41) away from the air intake pipe (3) being fixedly connected to the connecting pipe (5), the inner side of the shell (41) being fixedly connected to a guide block (42), and the inner side of the shell (41) being fixedly connected to a side of the inner cavity of the shell (41) close to the connecting pipe (5) being fixedly connected to a flow-slowing component (43).
6. A negative pressure feeding mechanism for a dust hopper of a dust collector according to claim 5, characterized in that: The slow flow assembly (43) comprises a limiting column (431), the outer side of the limiting column (431) is fixedly connected to the inner side of the housing (41), the side of the limiting column (431) close to the guide block (42) is fixedly connected to a buffer spring (432), the side of the buffer spring (432) away from the limiting column (431) is fixedly connected to a movable column (433), and the inner side of the movable column (433) is slidably connected to the outer side of the limiting column (431).