Anti-blocking ash discharging blowing assisting device for desulfurization ash hopper

Abstract

The utility model belongs to the technical field of desulfurization dust removers, and particularly discloses a desulfurization ash hopper anti-blocking ash discharging blowing assisting device which comprises an ash hopper, an ash discharging pipeline and a discharger, the lower portion of the ash hopper is fixedly connected with the ash discharging pipeline, the ash discharging pipeline is fixedly connected with the discharger, one side of the ash discharging pipeline is provided with an ash blowing branch pipe in a penetrating mode, and the ash blowing branch pipe is connected with the discharger. The soot blowing branch pipes are fixedly connected to the soot blowing main pipe, the soot blowing main pipe is fixedly connected with a nitrogen compressor, and the soot blowing branch pipes are fixedly connected with electromagnetic valves. Nitrogen is blown into the ash discharging pipeline, high-speed airflow is generated in the ash discharging pipeline by means of high pressure and flow of the nitrogen, desulfurized fly ash is pushed to overcome resistance and smoothly flow from the high position to the low position, and the fluidity of the desulfurized fly ash is improved. The desulfurized fly ash is stirred by high-pressure nitrogen, so that the desulfurized fly ash is effectively prevented from being adhered to the inner wall of the pipeline under the condition that the humidity of the desulfurized fly ash is relatively high, and the desulfurized fly ash is prevented from hardening in the pipeline.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization and dust removal equipment technology, specifically to a desulfurization ash hopper anti-clogging and ash unloading auxiliary blowing device. Background Technology

[0002] In the desulfurization ash hopper unloading system, when the amount of desulfurization ash is large, the bottom unloader may not be able to unload enough, easily causing the ash to clog the unloading pipe. After clogging, maintenance personnel must open the manhole to manually clean the clogged ash before normal unloading can resume. Additionally, when the desulfurization ash has high moisture content, its flow is reduced due to gravity, causing it to adhere to the inner wall of the pipe. Over time, this can lead to pipe blockage, with the ash hardening inside the pipe. Even after blockage, maintenance personnel still need to manually clean the pipe. There is a risk of personnel inhaling desulfurization ash during operation, which may lead to silicosis, an occupational disease. The operation is high-risk and increases the labor intensity for workers.

[0003] Patent CN204568496U discloses a desulfurization ash hopper, comprising an ash hopper, an end-wall blowing system, a side-wall blowing system, and a liner. The ash hopper is installed in the desulfurization system. The end-wall blowing system is installed at the lower ends of the side walls at both ends of the ash hopper and includes a main air duct and branch air ducts. The main air duct is connected to the fan supply pipe. There are multiple branch air ducts, evenly distributed on the main air duct. The side-wall blowing system is installed at the lower ends of the two side walls of the ash hopper and includes a main air duct and branch air ducts. The main air duct is connected to the fan supply pipe. There are multiple branch air ducts. The liner is fixedly installed on the inner wall of the ash hopper at the air inlet position, completely covering the air inlet. The liner is an industrial filter cloth, which has the characteristics of reducing or avoiding ash hopper blockage caused by quicklime deposition on the side or end walls of the ash hopper, thus reducing labor intensity and workload.

[0004] However, the above solution only blows air onto the side wall of the ash hopper, which cannot prevent the ash discharge pipe from becoming blocked, and it cannot disperse the already hardened desulfurization ash. Utility Model Content

[0005] The purpose of this utility model is to provide a desulfurization ash hopper anti-clogging ash discharge auxiliary blowing device to solve the problems of ash discharge pipe blockage and desulfurization ash caking on the pipe wall.

[0006] To achieve the above objectives, the basic solution provided by this utility model is as follows: a desulfurization ash hopper anti-clogging ash discharge auxiliary blowing device, including an ash hopper, an ash discharge pipe and a discharger, wherein the ash discharge pipe is fixedly connected to the bottom of the ash hopper, the ash discharge pipe is fixedly connected to the discharger, a ash blowing branch pipe runs through one side of the ash discharge pipe, the ash blowing branch pipe is fixedly connected to the ash blowing main pipe, a nitrogen compressor is fixedly connected to the ash blowing main pipe, and a solenoid valve is fixedly connected to the ash blowing branch pipe.

[0007] The principle and beneficial effects of this invention are as follows: By adding nitrogen-assisted blowing to the existing equipment, when desulfurization ash clogs the pipes or obstructs ash flow, the solenoid valve is opened to blow nitrogen into the ash-feeding pipe. The high pressure and flow rate of nitrogen generate a high-speed airflow within the pipe, propelling the desulfurization ash over resistance and allowing it to flow smoothly from high to low, thus increasing the ash's fluidity. The high-pressure nitrogen agitates the desulfurization ash, effectively preventing it from adhering to the inner wall of the pipe and from caking, especially when the ash has high moisture content. Using inert nitrogen for blowing does not affect the properties of the desulfurization ash or subsequent processing.

[0008] Option 2, a preferred embodiment of the basic option, involves six parallel soot blowing branch pipes arranged on the main soot blowing pipe. The three branch pipes closest to the ash hopper have their inlets bent upwards, while the three branch pipes closest to the unloader have their inlets bent downwards. These branch pipes are evenly distributed along the lower ash pipe. The top three branch pipes blow the desulfurized ash upwards, while the bottom three blow the desulfurized ash downwards, ensuring uniform airflow within the lower ash pipe and eliminating dead zones for ash accumulation.

[0009] Option 3, a preferred option of the basic option, involves installing a resistance wire inside the soot blowing main pipe. The resistance wire heats the air supplied from the soot blowing main pipe, allowing the soot blowing branch pipes to dry the desulfurization ash while blowing nitrogen, thus preventing the wet ash from caking.

[0010] Option 4, a preferred option of the basic scheme, involves a pressure gauge fixedly installed on the soot blowing main pipe. Real-time monitoring of the pressure gauge ensures stable purging pressure, maintaining nitrogen pressure between 0.5 and 0.6 MPa.

[0011] Option 5, a preferred option of the basic scheme, features a handhole on the ash discharge pipe, with an observation window welded onto the handhole. A sealing cap is hinged to the top of the observation window. The observation window allows for real-time monitoring of ash accumulation within the ash discharge pipe, facilitating timely maintenance.

[0012] Option 6, a preferred option of the basic scheme, involves a fixedly connected eccentric vibrating motor to the outside of the ash hopper, and the ash discharge pipe connected to the eccentric vibrating motor via clamps. The eccentric vibrating motor generates vibrations of 20-50Hz, loosening the ash adhering to the ash hopper and pipe walls, further preventing the formation of ash accumulation dead zones. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a desulfurization ash hopper anti-clogging and ash unloading auxiliary blowing device according to this utility model;

[0014] Figure 2 This is a top view of a desulfurization ash hopper anti-clogging and ash unloading auxiliary blowing device according to this utility model;

[0015] Figure 3 yes Figure 2 Sectional view at point A in the middle. Detailed Implementation

[0016] The present invention will be further described in detail below through specific embodiments:

[0017] The reference numerals in the accompanying drawings are as follows: 1-ash hopper, 2-ash discharge pipe, 3-unloader, 4-ash blowing branch pipe, 5-ash blowing main pipe, 6-nitrogen compressor, 7-solenoid valve, 8-resistance wire, 9-pressure gauge, 10-handhole, 11-observation window, 12-sealing cover, 13-eccentric vibration motor.

[0018] Example

[0019] like Figures 1 to 3 The diagram shows a desulfurization ash hopper anti-clogging and ash discharge auxiliary blowing device, comprising an ash hopper 1, an ash discharge pipe 2, a main ash blowing pipe 5, and a discharger 3. The ash discharge pipe 2 is fixedly connected to the bottom of the ash hopper 1, and the ash discharge pipe 2 is fixedly connected to the discharger 3. A nitrogen compressor 6 is fixedly connected to the main ash blowing pipe 5, and a resistance wire 8 is laid inside the main ash blowing pipe 5. Six branch pipes 4 are fixedly connected in parallel to the main ash blowing pipe 5. The pipe openings of the three branch pipes 4 closest to the ash hopper 1 are bent upwards, and the pipe openings of the three branch pipes 4 closest to the discharger 3 are bent downwards. The branch pipes 4 pass through one side of the ash discharge pipe 2, and a solenoid valve 7 is fixedly connected to the branch pipe 4. A hand hole 10 is opened on the ash discharge pipe 2, and an observation window 11 is welded to the hand hole 10. A sealing cover 12 is hinged to the top of the observation window 11. An eccentric vibration motor 13 is fixedly connected to the outside of the ash hopper 1, and the eccentric vibration motor 13 is connected to the ash discharge pipe 2 through a clamp.

[0020] The implementation method of this embodiment is as follows: When unloading ash, the nitrogen compressor 6 outputs compressed nitrogen at 0.5-0.6MPa. After entering the soot blowing main pipe 5, the nitrogen is heated by the resistance wire 8 and enters the ash discharge pipe 2 from the soot blowing branch pipes 4. The upper 3 soot blowing branch pipes 4 blow nitrogen upward to disperse the clumps of ash and dry them. The lower 3 soot blowing branch pipes 4 blow nitrogen downward to increase the fluidity of the desulfurization ash.

[0021] The eccentric vibration motor 13 generates vibrations of 20-50Hz to loosen the ash adhering to the wall of the ash hopper 1 and the wall of the ash pipe 2, preventing the desulfurization ash from caking and further preventing the formation of dead corners for ash accumulation.

[0022] During maintenance, the sealing cover 12 can be opened, and the accumulation in the ash pipe 2 can be observed through the observation window 11. The accumulation can be cleaned through the handhole 10.

[0023] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A desulfurized ash hopper anti-blocking ash unloading and blowing assisting device, characterized in that, Including ash bucket (1), ash pipe (2) and unloader (3), ash bucket (1) is fixedly connected ash pipe (2) below, ash pipe (2) is fixedly connected with unloader (3), ash pipe (2) one side is penetrated and has blowing ash branch pipe (4), blowing ash branch pipe (4) is fixedly connected on blowing ash main pipe (5), blowing ash main pipe (5) is fixedly connected with nitrogen compressor (6), blowing ash branch pipe (4) is fixedly connected with electromagnetic valve (7) on.

2. The anti-blocking and ash-unloading device for a desulfurization ash bucket according to claim 1, characterized in that Blowing ash main pipe (5) is provided with 6 blowing ash branch pipes (4) side by side, the pipe orifice of 3 blowing ash branch pipes (4) near ash bucket (1) side is bent upwards, the pipe orifice of 3 blowing ash branch pipes (4) near unloader (3) side is bent downwards.

3. The anti-blocking and ash-unloading device for a desulfurization ash bucket according to claim 1, characterized in that, Resistance wire (8) is laid in blowing ash main pipe (5).

4. The anti-blocking and ash-unloading device for a desulfurization ash bucket according to claim 1, characterized in that, Pressure gauge (9) is fixedly installed on blowing ash main pipe (5).

5. The devolatilized fly ash hopper anti-blocking and ash unloading auxiliary blowing device according to claim 1, characterized in that Hand hole (10) is formed on ash pipe (2), observation window (11) is welded on hand hole (10), sealing cover (12) is hinged on the top of observation window (11).

6. The devolatilized fly ash hopper anti-clogging and fly unloading assisting device according to claim 1, characterized in that, Eccentric vibration motor (13) is fixedly connected on the outside of ash bucket (1), eccentric vibration motor (13) is connected through hoop on ash pipe (2).

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