Small-angle pneumatic conveying device
The small-angle gas conveying device with breakage and anti-clogging pulse guns and valves addresses dust clumping and blockages, ensuring efficient and safe dust discharge into storage bins.
Patent Information
- Application Number
- CN202422071853.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-26
AI Technical Summary
When existing pneumatic conveying devices deal with dust-containing gas, dust accumulation, agglomeration and blockage in the ash bucket area, resulting in equipment failure and frequent shutdowns, increasing operating costs.
A small-angle pneumatic conveying device is designed, including a arch-breaking pulse cannon, a lower ash-hole anti-blocking pulse cannon, a pneumatic pump and other devices. By spraying compressed air, it prevents dust and dust accumulation to ensure smooth transportation.
Effectively prevent dust and dust accumulation, ensure transportation efficiency, avoid equipment blockage, reduce maintenance costs, and ensure stable operation and safety of equipment.
Smart Images
Figure CN223102084U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic ash conveying, and specifically discloses a small-angle pneumatic conveying device. Background Art
[0002] With the rapid development of the economy, the production scale of all walks of life is also continuously expanding. The environmental pollution problems caused by the transportation of some raw materials and powder materials in industries such as thermal power plants, chemical plants, cement plants, pharmaceutical plants, and grain processing plants during the production process have been increasingly widely concerned. Therefore, the pneumatic conveying technology has been gradually popularized. Pneumatic conveying is an important link in clean production. It is a process that uses a sealed conveying pipeline to replace the traditional mechanical material conveying, and is a modern logistics system suitable for bulk material conveying.
[0003] In the pneumatic conveying devices widely used in the current market, especially in dry dust collectors, when dealing with a large amount of dust-containing gas, the ash hopper area often faces problems such as dust accumulation, caking, and even blockage. These problems not only affect the dust removal efficiency, but also lead to equipment failures and frequent shutdowns for maintenance, increasing the operating cost. Traditional cleaning methods mostly use manual cleaning, which is time-consuming, laborious, and has certain safety risks. Content of the Utility Model
[0004] According to the above deficiencies in the prior art, the utility model provides a small-angle pneumatic conveying device to solve the problems of easy ash hopper blockage and difficult ash accumulation cleaning in the existing devices during long-term operation.
[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:
[0006] The small-angle pneumatic conveying device described in the utility model includes an ash hopper. An arch-breaking pulse gun penetrating the outer wall of the ash hopper is fixedly arranged on the upper part of the outer wall of the ash hopper through a support frame. A plurality of fluidizing valves are fixedly arranged at intervals on the lower part of the outer wall of the ash hopper. All the fluidizing valves penetrate the outer wall of the ash hopper. A pulse angle valve I is fixedly arranged at the end of the fluidizing valve away from the ash hopper. A compressed air inlet I is opened at the bottom end of each pulse angle valve I. A lower ash channel is arranged at the bottom of the ash hopper. A lower ash port anti-blocking pulse gun is fixedly arranged on the outer wall of the lower ash channel. The bottom end of the lower ash channel is connected to a pneumatic pump.
[0007] Among them:
[0008] The fluidizing valve and the pulse angle valve I are fixedly connected through a pipeline.
[0009] The arch-breaking pulse gun includes a spray pipe I fixedly arranged on the upper part of the outer wall of the ash hopper. The spray pipe I penetrates the outer wall of the ash hopper. A submerged pulse valve is fixedly arranged at the end of the spray pipe I away from the ash hopper. The submerged pulse valve is located outside the ash hopper. The submerged pulse valve and the spray pipe I are fixedly connected through a pipeline.
[0010] A gas storage tank is fixedly connected to the pipeline between the submerged pulse valve and the first nozzle.
[0011] The first nozzle extends to the middle of the inner cavity of the ash hopper. The first nozzle is integrally arranged in a J shape, and the outlet of the first nozzle is arranged vertically upward.
[0012] The ash discharge port anti-blocking pulse cannon includes a second nozzle fixedly arranged in the middle of the outer wall of the ash discharge channel. The second nozzle penetrates through the outer wall of the ash discharge channel. One end of the second nozzle far away from the ash discharge channel is connected to a pulse angle valve II through a pipeline. The pulse angle valve II is located outside the ash discharge channel, and a second compressed air inlet is arranged at the bottom end of the pulse angle valve II.
[0013] The second nozzle extends to the middle of the inner cavity of the ash discharge channel. The second nozzle is integrally arranged in a J shape, and the outlet of the second nozzle is arranged vertically downward.
[0014] A first chamber is arranged at the bottom end of the ash discharge channel. A pneumatic pump is arranged at the bottom of the first chamber. A second chamber is connected to the side of the inlet of the pneumatic pump, and the outlet of the pneumatic pump is connected to an ash silo.
[0015] The fluidization valve includes a fluidization valve housing on the outside and a fluidization valve body on the inside. The fluidization valve housing and the fluidization valve body are slidably connected.
[0016] The angle between the wall of the ash hopper and the horizontal plane is 15 - 30°. Fixed ribs are arranged in the middle of the ash hopper, and four fluidization valves are arranged.
[0017] The beneficial effects of the present utility model are as follows:
[0018] By means of devices such as the arch-breaking pulse cannon, the ash discharge port anti-blocking pulse cannon, and the pneumatic pump set in the present utility model, the collected dust can be transported and collected according to different construction conditions, ensuring that the transported dust does not agglomerate, does not form arches, and does not accumulate dust, ensuring that the dry ash is smoothly transported to the ash silo through the pneumatic conveying device, improving the ash conveying efficiency, solving the problem of ash accumulation in the ash hopper caused by unsmooth ash discharge when the angle of the ash hopper is small, avoiding problems such as ash accumulation collapse and blockage, reducing the maintenance cost, and ensuring the stable operation of the equipment and the safety of personnel. Description of the Drawings
[0019] Figure 1 is a structural schematic diagram of the present utility model;
[0020] Figure 2 is a structural schematic diagram of the present utility model when the fluidization valve is closed;
[0021] Figure 3 is a structural schematic diagram of the present utility model when the fluidization valve is opened.
[0022] In the figure: 1. air bag; 2. submerged pulse valve; 3. pulse angle valve I; 4. fluidizing valve; 5. pulse angle valve II; 6. nozzle II; 7. pneumatic pump; 8. nozzle I; 9. ash hopper; 10. compressed air inlet I; 11. compressed air inlet II; 12. fluidizing valve housing; 13. fluidizing valve body; 14. support frame; 15. ash discharge channel; 16. chamber I; 17. ash silo; 18. chamber II. Detailed implementation mode
[0023] The present utility model will be specifically described and illustrated below with reference to the accompanying drawings.
[0024] Embodiment 1
[0025] As Figures 1-3 shown, the small-angle pneumatic conveying device of the present utility model includes an ash hopper 9. An arch-breaking pulse gun penetrating the outer wall of the ash hopper 9 is fixedly arranged on the upper part of the outer wall of the ash hopper 9 through a support frame 14. A plurality of fluidizing valves 4 are fixedly arranged at intervals on the lower part of the outer wall of the ash hopper 9. The plurality of fluidizing valves 4 all penetrate the outer wall of the ash hopper 9. A pulse angle valve I 3 is fixedly arranged at one end of the fluidizing valve 4 away from the ash hopper 9. A compressed air inlet I 10 is opened at the bottom end of each pulse angle valve I 3. An ash discharge channel 15 is arranged at the bottom of the ash hopper 9. An ash discharge port anti-blocking pulse gun is fixedly arranged on the outer wall of the ash discharge channel 15. The bottom end of the ash discharge channel 15 is connected to a pneumatic pump 7.
[0026] The fluidizing valve 4 and the pulse angle valve I 3 are fixedly connected through a pipeline. By connecting with the compressed air system through the pulse angle valve I 3, the compressed air flow parallel to the wall of the ash hopper 9 ejected from the outlet of the fluidizing valve 4 can prevent ash accumulation on the wall of the ash hopper 9, and is particularly suitable for the ash hopper 9 with a small angle and difficult ash discharge.
[0027] The arch-breaking pulse gun includes a nozzle I 8 fixedly arranged on the upper part of the outer wall of the ash hopper 9. The nozzle I 8 penetrates the outer wall of the ash hopper 9. A submerged pulse valve 2 is fixedly arranged at one end of the nozzle I 8 away from the ash hopper 9. The submerged pulse valve 2 is located outside the ash hopper 9. The submerged pulse valve 2 and the nozzle I 8 are fixedly connected through a pipeline. The arch-breaking pulse gun can solve the problem of unsmooth ash discharge caused by ash accumulation and arching.
[0028] An air bag 1 is fixedly connected to the pipeline between the submerged pulse valve 2 and the nozzle I 8.
[0029] The nozzle I 8 extends to the middle part of the inner cavity of the ash hopper 9. The whole nozzle I 8 is arranged in a J shape, and the outlet of the nozzle I 8 is arranged vertically upward.
[0030] The lower ash outlet anti-blocking pulse cannon includes a second nozzle 6 fixedly arranged in the middle of the outer wall of the lower ash passage 15. The second nozzle 6 penetrates through the outer wall of the lower ash passage 15. One end of the second nozzle 6 far from the lower ash passage 15 is connected with a second pulse angle valve 5 through a pipeline. The second pulse angle valve 5 is located outside the lower ash passage 15, and a second compressed air inlet 11 is arranged at the bottom of the second pulse angle valve 5.
[0031] The second nozzle 6 extends to the middle of the inner cavity of the lower ash passage 15. The second nozzle 6 is integrally arranged in a J shape, and the outlet of the second nozzle 6 is vertically downward.
[0032] A first bin 16 is arranged at the bottom of the lower ash passage 15. An air pump 7 is arranged at the bottom of the first bin 16. A side part at the inlet of the air pump 7 is connected with a second bin 18, and the outlet of the air pump 7 is connected with an ash silo 17.
[0033] The air pump 7 includes an AV pump or a bin pump. The lower ash passage 15 can smoothly convey dry ash into the AV pump or the bin pump and then convey it to the ash silo 17.
[0034] The fluidization valve 4 includes an outer fluidization valve housing 12 and an inner fluidization valve body 13. The fluidization valve housing 12 and the fluidization valve body 13 are slidably connected. The angle between the wall of the ash hopper 9 and the horizontal plane is 15 - 30°. Fixed ribs are arranged in the middle of the ash hopper 9, and four fluidization valves 4 are arranged.
[0035] The combined use of the ash hopper 9, the fluidization valve 4, the arch-breaking pulse cannon and the lower ash outlet anti-blocking pulse cannon can effectively solve the problem of ash accumulation in the ash hopper 9 caused by reasons such as dry ash absorbing moisture and caking, arching, and poor ash discharge due to the small angle of the wall of the ash hopper 9, and prevent a series of problems such as ash accumulation collapse and blockage that affect the safe and stable operation of the device.
[0036] Working principle and process:
[0037] The submerged pulse valve 2, pulse angle valve II 5, pulse angle valve I 3, and fluidizing valve 4 are connected through a PLC and interlocked with the pneumatic pump 7. When the small-angle pneumatic conveying device is working, the arch-breaking pulse cannon, the anti-blocking pulse cannon at the ash discharge port, pulse angle valve I 3, and fluidizing valve 4 receive pulse signals and start working; the submerged pulse valve 2 opens, and the compressed air in the air receiver 1 is ejected through the first nozzle 8 to the top of the ash hopper 9, and the accumulated ash is washed away and discharged downward through the wall of the ash hopper 9; pulse angle valve I 3 opens, the compressed air enters pulse angle valve I 3 through the first compressed air inlet 10, and then enters the fluidizing valve 4. The fluidizing valve housing 12 moves away from the ash hopper 9, and the compressed air is ejected through the gap between the fluidizing valve housing 12 and the fluidizing valve body 13. The ejected compressed air flow is parallel to the wall of the ash hopper 9 to prevent the formation of accumulated ash on the wall of the ash hopper 9; pulse angle valve II 5 opens, the compressed air enters pulse angle valve II 5 through the second compressed air inlet 11, and then pulse angle valve II 5 ejects the compressed air downward to the lower part of the ash discharge channel 15, and the compressed air washes away the accumulated ash formed at the ash discharge port of the ash discharge channel 15 due to caking, moisture absorption, etc.
Claims
1. A small-angle pneumatic conveying device, comprising a hopper (9), characterized in that, On the upper part of the outer wall of the ash hopper (9), a arch-breaking pulse cannon penetrating the outer wall of the ash hopper (9) is fixedly arranged through a support frame (14). On the lower part of the outer wall of the ash hopper (9), a number of fluidizing valves (4) are fixedly arranged at intervals. All the fluidizing valves (4) penetrate the outer wall of the ash hopper (9). One end of the fluidizing valve (4) away from the ash hopper (9) is fixedly provided with a pulse angle valve one (3). A compressed air inlet one (10) is opened at the bottom end of each pulse angle valve one (3). A ash discharging channel (15) is arranged at the bottom of the ash hopper (9). An anti-blocking pulse cannon for the ash discharging port is fixedly arranged on the outer wall of the ash discharging channel (15). The bottom end of the ash discharging channel (15) is connected with an air pump (7).
2. The small-angle pneumatic conveying device according to claim 1, wherein The fluidizing valve (4) and the pulse angle valve one (3) are fixedly connected through a pipeline.
3. The small-angle pneumatic conveying device according to claim 1, characterized in that, The arch-breaking pulse cannon includes a nozzle one (8) fixedly arranged on the upper part of the outer wall of the ash hopper (9). The nozzle one (8) penetrates the outer wall of the ash hopper (9). One end of the nozzle one (8) away from the ash hopper (9) is fixedly provided with a submerged pulse valve (2). The submerged pulse valve (2) is located outside the ash hopper (9). The submerged pulse valve (2) and the nozzle one (8) are fixedly connected through a pipeline.
4. The small-angle pneumatic conveying device according to claim 3, characterized in that, An air bag (1) is fixedly connected to the pipeline between the submerged pulse valve (2) and the nozzle one (8).
5. The small-angle pneumatic conveying device according to claim 3, characterized in that, The nozzle one (8) extends to the middle part of the inner cavity of the ash hopper (9). The nozzle one (8) is integrally arranged in a J shape, and the outlet of the nozzle one (8) is arranged vertically upward.
6. The small-angle pneumatic conveying device according to claim 1, wherein The anti-blocking pulse cannon for the ash discharging port includes a nozzle two (6) fixedly arranged in the middle of the outer wall of the ash discharging channel (15). The nozzle two (6) penetrates the outer wall of the ash discharging channel (15). One end of the nozzle two (6) away from the ash discharging channel (15) is connected with a pulse angle valve two (5) through a pipeline. The pulse angle valve two (5) is located outside the ash discharging channel (15). A compressed air inlet two (11) is arranged at the bottom end of the pulse angle valve two (5).
7. The small-angle pneumatic conveying device according to claim 6, characterized in that, The nozzle two (6) extends to the middle part of the inner cavity of the ash discharging channel (15). The nozzle two (6) is integrally arranged in a J shape, and the outlet of the nozzle two (6) is arranged vertically downward.
8. The small-angle pneumatic conveying device according to claim 1, characterized in that, A chamber one (16) is arranged at the bottom end of the ash discharging channel (15). An air pump (7) is arranged at the bottom of the chamber one (16). A chamber two (18) is connected to the side part of the inlet of the air pump (7). The outlet of the air pump (7) is connected with an ash silo (17).
9. The small-angle pneumatic conveying device according to claim 1, characterized in that, The fluidizing valve (4) includes a fluidizing valve shell (12) on the outside and a fluidizing valve body (13) on the inside. The fluidizing valve shell (12) and the fluidizing valve body (13) are slidably connected.
10. The small-angle pneumatic conveying device according to claim 1, characterized in that, The angle between the wall of the ash hopper (9) and the horizontal plane is 15 - 30°. Fixed ribs are arranged in the middle of the ash hopper (9). Four fluidizing valves (4) are arranged.