Low-dust coal bunker
The dust in the coal bin is pumped into the dust collector for separation and storage through a negative pressure fan and air collecting hood system, which solves the dust pollution problem of the coal bin and realizes the low-dust environment and dust recycling.
Patent Information
- Application Number
- CN202422736701.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The existing coal bins generate a large amount of dust during unloading and transportation, which affects the health of staff, and spray dust reduction will increase coal moisture content and wet clothing problems.
The negative pressure fan and air collecting hood system are used to generate negative pressure through the negative pressure fan. The air collecting hood increases the dust suction area, and the dust is sent to the dust collector through the pipe for separation and storage. The dust collector is installed outside the warehouse to achieve effective dust removal.
Effectively reduce the dust concentration in the coal silo, improve the working environment, avoid the water content of coal caused by spray dust reduction, and realize the recycling and reuse of dust.
Smart Images
Figure CN223238696U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal bunkers, in particular to a low-dust coal bunker. Background Art
[0002] Coal chemical companies and other enterprises need to purchase large quantities of coal in advance because they need to use it. That means they need to buy it and then use it. This means that the coal needs to be stored in the warehouse for a period of time before it can be used. Vehicles unloading in the coal bunker and transport machinery pulling coal in the coal bunker, the drop caused by transfer and unloading, causes small and light particles to float in the coal storage bunker with the airflow. Although workers wear dust masks, the large amount of dust will make the dust masks ineffective over time, affecting the health of workers. Of course, there are also dust reduction methods such as spraying, but since workers need to work in the warehouse, although spraying can reduce dust, it is easy to increase the water content of coal and easily wet the workers' clothes. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a low-dust coal bunker which utilizes airflow to remove dust.
[0004] In order to solve the above problems, the utility model provides a low-dust coal bunker, which includes a warehouse body, a negative pressure fan, an air hood and a dust collector. The warehouse body has a frame, and the air inlet end of the negative pressure fan is installed on the air hood or the air inlet end of the negative pressure fan is connected to the air hood through a pipe, and the air outlet end of the negative pressure fan is connected to the dust collector through a pipe. The negative pressure fan is used to generate negative pressure, and the air hood is used to increase the dust suction area. The pipe is fixed on the frame, and the pipe is used to send the dust and air sucked by the negative pressure fan into the dust collector. The dust collector is installed on the frame or is arranged outside the warehouse body. The dust collector is used to separate dust and air, thereby discharging air and retaining dust in the dust collector.
[0005] Furthermore, a first hanging ring is provided on the outer wall of the wind collecting cover, and the first hanging ring is fixed to the frame through a fixing rope.
[0006] Furthermore, there are at least three first hanging rings, and the first hanging rings are evenly distributed on the wind gathering cover.
[0007] Furthermore, the wind collecting hood includes a hood body and a connecting portion integral with the hood body, and the connecting portion is used to install the negative pressure fan.
[0008] Furthermore, the dust collector includes an outer cylinder, an inner cylinder, an air inlet joint and a cover plate, the bottom of the outer cylinder is provided with a slag outlet, and the slag outlet is provided with a valve; the air inlet joint is provided on the outer cylinder and is connected with the inner cavity of the outer cylinder, and the air inlet joint is tangent to the outer cylinder; the inner cylinder is located in the inner cavity of the outer cylinder and is coaxially arranged with the outer cylinder, the inner cylinder and the outer cylinder are connected through the gap between the bottom of the inner cylinder and the bottom of the outer cylinder, the cover plate is connected to the top of the outer cylinder and the inner cylinder at the same time, the cover plate is provided with an air outlet connected with the inner cylinder, and the cover plate is provided with a second hanging ring for connecting with a fixing rope.
[0009] Furthermore, the dust collector includes an outer tube, an inner tube, an air inlet joint and a cover plate, the outer tube is provided with supporting feet, and the bottom of the outer tube is also provided with a slag outlet, and the slag outlet is provided with a valve; the air inlet joint is provided on the outer tube and is connected with the inner cavity of the outer tube, and the air inlet joint is tangent to the outer tube; the inner tube is located in the inner cavity of the outer tube and is coaxially arranged with the outer tube, and the inner tube and the outer tube are connected through the gap between the bottom of the inner tube and the bottom of the outer tube; the cover plate is connected to the outer tube and the top of the inner tube at the same time, and the cover plate is provided with an air outlet connected with the inner tube.
[0010] Furthermore, the bottom of the outer cylinder is recessed downward so that the bottom of the outer cylinder is an inclined surface.
[0011] Furthermore, a first sealing groove and a second sealing groove are provided on the cover plate, the inner cylinder is installed in the first sealing groove, the outer cylinder is installed in the second sealing groove, and sealing rings are provided in both the first sealing groove and the second sealing groove.
[0012] Furthermore, a buffer plate is provided in the inner tube, and the buffer plate is inclined.
[0013] Furthermore, there are multiple buffer plates, and the buffer plates are divided into multiple layers. The buffer plates in each layer are evenly distributed, and the buffer plates in two adjacent layers are staggered.
[0014] The low-dust coal bunker of the utility model utilizes a negative pressure fan to suck dust from the air, ensuring that the dust in the coal bunker is low, and then sends the dust into a dust collector through a pipeline for dust removal, and the dust is retained in the dust collector. The dust in the dust collector can also be recovered and reused; at the same time, the naturally precipitated gas in the warehouse body can be discharged. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of a preferred embodiment of the low-dust coal bunker of the utility model.
[0016] Figure 2 It is a structural diagram of the wind gathering cover.
[0017] Figure 3It is a structural diagram of the dust collector.
[0018] Figure 4 It is a schematic diagram of the internal structure of the dust collector.
[0019] Figure 5 It is a structural schematic diagram of another preferred embodiment of the low-dust coal bunker of the present utility model.
[0020] The meanings of the reference numerals in the accompanying drawings are:
[0021] Warehouse body 1, frame 11, negative pressure fan 2, wind collecting hood 3, hood body 31, connecting part 32, first hanging ring 33, dust collector 4, outer tube 41, slag outlet 411, valve 412, inner tube 42, air inlet joint 43, cover plate 44, exhaust pipe 45, second hanging ring 46, first sealing groove 471, second sealing groove 472, sealing ring 473, buffer plate 48, supporting foot 49, pipeline 5, fixing rope 6. DETAILED DESCRIPTION
[0022] The present invention will be further described below with reference to the accompanying drawings.
[0023] Example 1
[0024] like Figure 1 As shown, a preferred embodiment of the low-dust coal bunker of the present invention includes a warehouse body 1, a negative pressure fan 2, an air collecting hood 3 and a dust collector 4. The warehouse body 1 has a load-bearing frame 11. The negative pressure fan 2 is installed on the air collecting hood 3, and there are multiple negative pressure fans 2 and air collecting hoods 3. Each air collecting hood 3 corresponds to a negative pressure fan 2, and the negative pressure fan 2 is used to generate negative pressure. The air collecting hood 3 is fixed on the frame 11, and the air collecting hood 3 is used to increase the dust suction area. The air collecting hood 3 can cover a larger area to collect airflow, and the dust-containing air in a larger surrounding range is more concentratedly sucked into the pipe 5, which can increase the suction area. The array of wind hoods 3 is distributed within the warehouse body 1, with adjacent rows of wind hoods 3 staggered, meaning the wind hoods 3 in one row are moved horizontally to the wind hoods 3 in the adjacent row, with the wind hoods 3 in the moved row located exactly between the wind hoods 3 in the adjacent rows. This allows for a reduced use of wind hoods 3 while still ensuring the effectiveness of dust extraction. The negative pressure blower 2 is connected to the dust collector 4 via a pipe 5, which is fixed to the frame 11. The pipe 5 is used to deliver the dust and air sucked by the negative pressure blower 2 into the dust collector 4, which is mounted on the frame 11. The dust collector 4 is used to separate the dust and air, thereby discharging the air and retaining the dust in the dust collector 4. The dust collector 4 is located in the middle of the same row of wind hoods 3. The wind hoods 3 on both sides of the dust collector 4 intake air from different planes, ensuring that the air introduced by the wind hoods 3 on both sides flows in the same direction within the dust collector 4, facilitating the generation of centrifugal force.
[0025] like Figure 2 As shown, the outer wall of the wind collecting hood 3 is provided with a first hanging ring 33, which is fixed to the frame 11 via a fixing rope 6. There are at least three first hanging rings 33, and the first hanging rings 33 are evenly distributed on the wind collecting hood 3 to ensure that the wind collecting hood 3 does not shake. The wind collecting hood 3 includes a wind collecting hood body 31 and a connecting portion 32 integral with the wind collecting hood body 31. The wind collecting hood body 3 is trumpet-shaped. The connecting portion 32 is used to mount the negative pressure fan 2. In other embodiments, it can also be used to mount the pipeline 5.
[0026] like Figure 3 and Figure 4As shown, the dust collector 4 includes an outer cylinder 41, an inner cylinder 42, an air inlet connector 43, and a cover plate 44. The upper end of the outer cylinder 41 is fixed to the cover plate 44. The bottom of the outer cylinder 41 is used to deposit dust. A slag outlet 411 is provided at the bottom of the outer cylinder 41 for discharging the deposited dust. The slag outlet 411 is provided with a valve 412. The valve 412 can be electrically or manually controlled and installed as needed. Opening the valve 412 discharges the dust deposited in the outer cylinder 41. The bottom of the outer cylinder 41 is concave downward, resulting in an inclined cross-section at the bottom of the outer cylinder 41, which facilitates guiding the deposited dust to accumulate at the slag outlet 411. The air inlet connector 43 is provided on the outer cylinder 41 and communicates with the inner cavity of the outer cylinder 41. The air inlet connector 43 is tangential to the outer cylinder 41. In this way, air entering the cavity of the outer cylinder 41 from the outside can rotate along the inner wall of the outer cylinder 41, thereby generating a vortex and thus generating centrifugal force. Dust is separated from the air under the action of the centrifugal force, thus completing the separation of dust and air, and the dust is deposited at the bottom of the outer cylinder 41. There are four air inlet connectors 43, two by two on each side, that is, two air inlet connectors 43 are on the front side of the outer cylinder 41, and the other two air inlet connectors 43 are on the rear side of the outer cylinder 41. This ensures that the flow direction of the introduced air in the inner cavity of the inner cylinder 42 is the same, facilitating the generation of centrifugal force. A gap exists between the bottom of the inner cylinder 42 and the bottom of the outer cylinder 41. This gap connects the inner cylinder 42 and the outer cylinder 41, allowing air to enter the inner cylinder 42 through this gap. When the valve is closed, the inner cavity of the outer cylinder 41 becomes a closed chamber, allowing air to enter only from the bottom of the inner cylinder 42. This prevents air from directly entering the inner cylinder 42, effectively preventing dust from settling. The upper end of the inner cylinder 42 is fixed to the cover plate 44. The inner cylinder 42 is located within the inner cavity of the outer cylinder 41. The outer cylinder 41 and inner cylinder 42 are coaxially arranged to minimize the impact of dust and air mixing entering the outer cylinder 41. A gap is provided between the bottom of the inner cylinder 42 and the bottom of the outer cylinder 41 to ensure that air can enter the inner cylinder 42. The cover plate 44 is provided with an air outlet that communicates with the inner cylinder 42, allowing air that enters the inner cylinder 42 to be discharged through the cover plate 44. An exhaust pipe 45 is provided on the cover plate 44 and is mounted at the air outlet to guide the exhaust air. A second hanging ring 46 is provided on the cover plate 44 and is connected to the frame 11 via a fixing rope 6 to secure the dust collector 4 to the frame 11. Multiple second hanging rings 46 are provided to prevent the dust collector 4 from shaking. The second hanging rings 46 are evenly distributed on the cover plate 44, ensuring that the cover plate 44 is subjected to stable force.
[0027] To reduce the weight of the dust collector 4, it is made of lightweight materials. The outer cylinder 41 and inner cylinder 42 are fixed to the cover plate 44 by riveting. The cover plate 44 is provided with a first sealing groove 471 and a second sealing groove 472, each of which is provided with a sealing ring 473. The inner cylinder 42 is installed in the first sealing groove 471, and the outer cylinder 41 is installed in the second sealing groove 472. Ensure that the connection between the cover plate 44, the inner cylinder 42, and the outer cylinder 41 is airtight and has a good seal.
[0028] A buffer plate 48 is disposed within the inner cylinder 42. The buffer plate 48 is tilted and serves to slow down the air flow, preventing dust trapped in the air from being discharged along with the air, while also achieving sound absorption. The buffer plates 48 are multiple and arranged in multiple layers. The buffer plates 48 on each layer are evenly distributed, and the buffer plates 48 on adjacent layers are staggered to enhance the buffering effect.
[0029] When in use, start the negative pressure fan 2 that is not directly above for suction, so that the air containing dust can flow obliquely upward instead of directly facing the person, reducing the impact on manual labor. Of course, you can also directly start the negative pressure fan 2 directly above to suck the dust and quickly remove the dust. After the dust enters the air collector, it is quickly settled at the bottom of the outer cylinder 41 under the action of centrifugal force, and the air is discharged. The discharged air does not contain dust and will not affect the surrounding environment. The use of the negative pressure fan 2 to suck the dust in the air ensures that the dust in the coal bunker is low, and then the dust is sent to the dust collector through the pipe 5 for dust removal, and the dust is retained in the dust collector. The dust in the dust collector can also be recycled and reused. At the same time, the naturally precipitated gas in the warehouse body 1 can be discharged to improve safety.
[0030] Example 2
[0031] like Figure 5 As shown, the difference between this embodiment and the first embodiment is that the dust collector 4 is arranged outside the warehouse body 1, the structure of the dust collector 4 is different, and the negative pressure fan 2 is connected to the dust collector 4 and the wind collecting hood 3 through the pipeline 5 respectively.
[0032] Specifically, the dust collector 4 includes an outer cylinder 41, an inner cylinder 42, an air inlet joint 43 and a cover plate 44. The upper end of the outer cylinder 41 is fixed on the cover plate 44. The air inlet joint 43 is provided on the outer cylinder 41 and communicates with the inner cavity of the outer cylinder 41, and the air inlet joint 43 is tangent to the outer cylinder 41. A slag outlet 411 is provided at the bottom of the outer cylinder 41, and a valve 412 is provided at the slag outlet 411. The inner cylinder 42 is located in the inner cavity of the outer cylinder 41. The outer cylinder 41 and the inner cylinder 42 are coaxially arranged. A gap is provided between the bottom of the inner cylinder 42 and the bottom of the outer cylinder 41. The upper end of the inner cylinder 42 is fixed on the cover plate 44. The cover plate 44 is provided with an air outlet communicated with the inner cylinder 42. The outer cylinder 41 is provided with a supporting foot 49.
[0033] The dust collector 4 is arranged outside the warehouse body 1, which can reduce the load-bearing of the frame 11. All the air collecting hoods 3 are connected to the negative pressure fan 2 through a pipe 5, which can reduce the use of the negative pressure fan 2 and reduce costs.
[0034] The above is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the description and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present invention.
Claims
1. A low-dust coal bunker, characterized by: It includes a warehouse body, a negative pressure fan, an air hood and a dust collector. The warehouse body has a frame. The air inlet end of the negative pressure fan is installed on the air hood or the air inlet end of the negative pressure fan is connected to the air hood through a pipe. The air outlet end of the negative pressure fan is connected to the dust collector through a pipe. The negative pressure fan is used to generate negative pressure. The air hood is used to increase the dust suction area. The pipe is fixed on the frame. The pipe is used to send the dust and air sucked by the negative pressure fan into the dust collector. The dust collector is installed on the frame or is arranged outside the warehouse body. The dust collector is used to separate dust and air, thereby discharging air and retaining dust in the dust collector.
2. The low-dust coal bunker according to claim 1, characterized in that: The outer wall of the wind collecting cover is provided with a first hanging ring, and the first hanging ring is fixed on the frame through a fixing rope.
3. The low-dust coal bunker according to claim 2, characterized in that: There are at least three first hanging rings, and the first hanging rings are evenly distributed on the wind gathering cover.
4. The low-dust coal bunker according to claim 1, characterized in that: The wind collecting hood includes a hood body and a connecting portion integrated with the hood body, and the connecting portion is used for installing the negative pressure fan.
5. The low-dust coal bunker according to claim 1, characterized in that: The dust collector includes an outer cylinder, an inner cylinder, an air inlet joint and a cover plate. The bottom of the outer cylinder is provided with a slag outlet, and the slag outlet is provided with a valve; the air inlet joint is provided on the outer cylinder and communicates with the inner cavity of the outer cylinder, and the air inlet joint is tangent to the outer cylinder; the inner cylinder is located in the inner cavity of the outer cylinder and is coaxially arranged with the outer cylinder, the inner cylinder and the outer cylinder are communicated through the gap between the bottom of the inner cylinder and the bottom of the outer cylinder, the cover plate is connected to the top of the outer cylinder and the inner cylinder at the same time, the cover plate is provided with an air outlet communicated with the inner cylinder, and the cover plate is provided with a second hanging ring for connecting with a fixing rope.
6. The low-dust coal bunker according to claim 1, characterized in that: The dust collector includes an outer tube, an inner tube, an air inlet joint and a cover plate, the outer tube is provided with supporting feet, and the bottom of the outer tube is also provided with a slag outlet, and the slag outlet is provided with a valve; the air inlet joint is provided on the outer tube and communicated with the inner cavity of the outer tube, and the air inlet joint is tangent to the outer tube; the inner tube is located in the inner cavity of the outer tube and is coaxially arranged with the outer tube, and the inner tube and the outer tube are communicated through the gap between the bottom of the inner tube and the bottom of the outer tube; the cover plate is connected to the outer tube and the top of the inner tube at the same time, and the cover plate is provided with an air outlet communicated with the inner tube.
7. The low-dust coal bunker according to claim 5 or 6, characterized in that: The bottom of the outer cylinder is concave downward so that the bottom of the outer cylinder is an inclined surface.
8. The low-dust coal bunker according to claim 5 or 6, characterized in that: The cover plate is provided with a first sealing groove and a second sealing groove, the inner cylinder is installed in the first sealing groove, the outer cylinder is installed in the second sealing groove, and sealing rings are provided in both the first sealing groove and the second sealing groove.
9. The low-dust coal bunker according to claim 5 or 6, characterized in that: A buffer plate is arranged in the inner cylinder, and the buffer plate is arranged obliquely.
10. The low-dust coal bunker according to claim 9, characterized in that: There are multiple buffer plates, and the buffer plates are divided into multiple layers. The buffer plates in each layer are evenly distributed, and the buffer plates in two adjacent layers are staggered.