Fly ash settling device

Abstract

The utility model discloses a fly ash settling device, and belongs to the field of fly ash settling devices. The fly ash settling device comprises a smoke exhaust pipe, a smoke inlet pipe is arranged at one end of the smoke exhaust pipe, a first cutoff valve is arranged on the smoke inlet pipe, the fly ash settling device further comprises a supporting block, the supporting block is arranged on the smoke exhaust pipe, a water conveying pipe is arranged on the supporting block, one end of the water conveying pipe extends into the smoke exhaust pipe, and the other end of the water conveying pipe extends into the smoke exhaust pipe. A spraying head is arranged at the end, extending into the smoke exhaust pipe, of the water conveying pipe, a water pump is arranged on the water conveying pipe, and a second connecting flange is arranged at the position of a water inlet of the water pump. The fly ash settling device solves the problems that an existing fly ash settling device mixes water and dust, so that the dust which is originally scattered in the air naturally falls down and settles under the wrapping of the water, but after the dust is mixed, the water is turbid, the dust in the water needs to be separated again, and otherwise, the national emission standard can not be met.

Description

Technical Field

[0001] The utility model relates to the field of fly ash sedimentation devices, and specifically relates to a fly ash sedimentation device. Background Art

[0002] When burning materials, a large amount of dust will remain in the air. If not recycled and sedimented in time, it will not only cause damage to the atmospheric environment, but also cause the working environment to be filled with dust, which is likely to cause blockage of equipment.

[0003] Chinese Patent with publication number CN218130815U discloses an air fly ash sedimentation device, which relates to the technical field of incineration dust equipment. It includes a first sedimentation tank, and two storage cabinets are installed inside the first sedimentation tank. A second sedimentation chamber is slidably connected to one side of the storage cabinet. A magnetic water generating tank is fixedly connected to the outside of the first sedimentation tank. The beneficial effects of the utility model are as follows: The first sedimentation tank, the second sedimentation tank and the water storage tank are provided. Normal discharge is carried out through the exhaust pipe, which improves the treatment effect of fly ash. At the same time, the working environment is purified, and the damage to the atmosphere is reduced to a certain extent. A filter plate, a plug rod and a bolt are provided. Preliminary filtration is carried out by installing the filter plate. By installing the plug rod and the bolt, the filter plate can be quickly disassembled, reducing the labor intensity during maintenance. A storage cabinet, a power storage bin, a pressing plate and a pressure sensor are provided to record values and timely feedback through the control panel, which is convenient for cleaning.

[0004] The fly ash sedimentation device of the above patent uses water to mix with dust, so that the dust originally scattered in the air naturally falls and sediments under the wrapping of water. Although the mixing of water and dust in this process effectively promotes the sedimentation of dust, it also leads to an increase in the turbidity of the water body. If directly discharged, it obviously cannot meet the requirements for water clarity in environmental protection standards. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a fly ash sedimentation device. A sedimentation tank is arranged at the lower end of the smoke exhaust pipe, and a feeding pipe is arranged on the outer side of the smoke exhaust pipe. The feeding pipe penetrates through the smoke exhaust pipe and extends above the sedimentation tank. A motorized metering valve is arranged on the feeding pipe and connected by a rotating hinge. When the soot enters the smoke exhaust pipe, the spray heads arranged on the inner wall of the smoke exhaust pipe start to spray water mist. The water mist mixes with the dust scattered in the air and descends into the sedimentation tank located at the lower end of the smoke exhaust pipe. At this time, the worker remotely controls the motorized metering valve to open through remote control and inputs the flocculant into the sedimentation tank through the feeding pipe. The dust in the water in the sedimentation tank starts to settle and becomes floccules under the action of the flocculant. The advantage of the motorized metering valve is that the worker can pre-adjust the opening degree of the motorized metering valve, accurately control the dosage of each discharge, and there is no need for manual feeding. The worker only needs to place a container at the lower end of the sedimentation tank. A drain pipe is arranged at the lower end of the sedimentation tank, and a second cut-off valve is arranged on the drain pipe. By opening the second cut-off valve, the preliminarily treated sewage can flow out and be properly collected by the worker, solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions: A fly ash sedimentation device includes a smoke exhaust pipe. One end of the smoke exhaust pipe is provided with a smoke inlet pipe, and a first cut-off valve is arranged on the smoke inlet pipe. The device further includes a support block arranged on the smoke exhaust pipe. A water delivery pipe is arranged on the support block. One end of the water delivery pipe extends into the smoke exhaust pipe, and spray heads are arranged at the end of the water delivery pipe extending into the smoke exhaust pipe. A water pump is arranged on the water delivery pipe. A second connecting flange is arranged at the water inlet of the water pump. A sedimentation tank is arranged at the lower end of the smoke exhaust pipe. A feeding pipe is arranged on the smoke exhaust pipe, and a motorized metering valve is arranged on the feeding pipe. A drain pipe is arranged at the lower end of the sedimentation tank, and a smoke outlet is arranged at the upper end of the smoke exhaust pipe.

[0007] Preferably, a second cut-off valve is arranged on the drain pipe, and the second cut-off valve is bolted to the drain pipe.

[0008] Preferably, a first connecting flange is arranged at the water inlet of the first cut-off valve, and the first connecting flange is bolted to the first cut-off valve.

[0009] Preferably, a filter screen is arranged on the smoke outlet.

[0010] Preferably, a large-aperture wire mesh is arranged on the inner wall of the smoke exhaust pipe below the spray heads.

[0011] Preferably, support columns are arranged at the lower end of the smoke exhaust pipe, and the support columns are welded to the smoke exhaust pipe.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The utility model is provided with a sedimentation tank at the lower end of the smoke exhaust pipe, and a feeding pipe is arranged outside the smoke exhaust pipe. The feeding pipe penetrates through the smoke exhaust pipe and extends above the sedimentation tank. A motorized metering valve connected by a rotary hinge is arranged on the feeding pipe. When dust enters the smoke exhaust pipe, the spray heads arranged on the inner wall of the smoke exhaust pipe start to spray water mist. The water mist mixes with the dust scattered in the air and descends into the sedimentation tank located at the lower end of the smoke exhaust pipe. At this time, the worker remotely controls the motorized metering valve to open through remote control and inputs the flocculant into the sedimentation tank through the feeding pipe. The dust in the water in the sedimentation tank starts to settle and becomes flocs under the action of the flocculant. The advantage of the motorized metering valve is that the worker can pre-adjust the opening degree of the motorized metering valve, accurately control the dosage of each feeding, and there is no need for manual feeding. The staff only needs to connect a pipe with a container at one end to the drain pipe at the lower end of the sedimentation tank. Then, due to the presence of the flocculant, the dust in the dust mixture in the sedimentation tank settles at the bottom of the sedimentation tank. Just open the second cut-off valve, and due to the action of gravity and the water pressure in the sedimentation tank, the deposited dust is discharged through the pipe. At this time, close the second cut-off valve. The remaining water in the sedimentation tank is a mixture of the flocculant and water, called mixed water, which can continue to settle and treat the next incoming dust mixed water. There is no need for the staff to add the flocculant frequently, effectively avoiding the mixing of water and dust in the existing fly ash sedimentation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall external structure of the utility model;

[0015] Figure 2 is a schematic sectional view of the smoke exhaust pipe of the utility model;

[0016] Figure 3 is a schematic top view of the overall of the utility model.

[0017] In the figure: 1. Smoke exhaust pipe; 2. Smoke inlet pipe; 3. First cut-off valve; 4. First connecting flange; 5. Support block; 6. Water delivery pipe; 7. Water pump; 8. Second connecting flange; 9. Smoke outlet; 10. Spray head; 11. Large-aperture screen; 12. Support column; 13. Feeding pipe; 14. Motorized metering valve; 15. Sedimentation tank; 16. Drain pipe; 17. Second cut-off valve; 18. Filter screen. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] In order to solve the problem in the prior art that the fly ash sedimentation device uses water to mix with dust, causing the dust originally scattered in the air to naturally fall and settle under the wrapping of water. However, after mixing with the dust, the water becomes turbid and the dust in the water needs to be separated again, otherwise the national emission standards may not be met. The following technical solutions are provided in this embodiment:

[0020] A fly ash sedimentation device includes a smoke exhaust pipe 1. One end of the smoke exhaust pipe 1 is provided with a smoke inlet pipe 2. A first cut-off valve 3 is arranged on the smoke inlet pipe 2. It also includes a support block 5 which is arranged on the smoke exhaust pipe 1. A water delivery pipe 6 is arranged on the support block 5. One end of the water delivery pipe 6 extends into the smoke exhaust pipe 1. A spray head 10 is arranged at the end of the water delivery pipe 6 extending into the smoke exhaust pipe 1. A water pump 7 is arranged on the water delivery pipe 6. A second connecting flange 8 is arranged at the water inlet of the water pump 7. A sedimentation tank 15 is arranged at the lower end of the smoke exhaust pipe 1. A discharge pipe 13 is arranged on the smoke exhaust pipe 1. An electric control metering valve 14 is arranged on the discharge pipe 13. A drain pipe 16 is arranged at the lower end of the sedimentation tank 15. A smoke outlet 9 is opened at the upper end of the smoke exhaust pipe 1. A second cut-off valve 17 is arranged on the drain pipe 16. The second cut-off valve 17 is bolted to the drain pipe 16. A first connecting flange 4 is arranged at the water inlet of the first cut-off valve 3. The first connecting flange 4 is bolted to the first cut-off valve 3. A filter screen 18 is arranged on the smoke outlet 9. A large-aperture wire mesh 11 is arranged on the inner wall of the smoke exhaust pipe 1 below the spray head 10. Support columns 12 are arranged at the lower end of the smoke exhaust pipe 1. The support columns 12 are welded to the smoke exhaust pipe 1;

[0021] In this embodiment, please refer to Figures 1 - 3, first, the staff connects the pipe generating soot to the first connecting flange 4 through bolts to introduce the soot into the exhaust pipe 1. Then, the water pipe with a water storage device connected to one end is connected to the second connecting flange 8. A sedimentation tank 15 is arranged at the lower end of the exhaust pipe 1, and a discharge pipe 13 is arranged on the outer side of the exhaust pipe 1. The discharge pipe 13 penetrates through the exhaust pipe 1 and extends above the sedimentation tank 15. An electric control metering valve 14 is arranged on the discharge pipe 13 and is connected by a rotating hinge. When the soot enters the exhaust pipe 1, the spray heads arranged on the inner wall of the exhaust pipe 1 start to spray water mist. The water mist mixes with the dust scattered in the air and descends into the sedimentation tank 15 located at the lower end of the exhaust pipe 1. Then, the pipe with a flocculant storage container with a material pump arranged on it is connected to the inlet of the electric control metering valve 14. At this time, the worker remotely controls the electric control metering valve 14 to open through remote control and inputs the flocculant into the sedimentation tank 15 through the discharge pipe 13. The dust in the water in the sedimentation tank 15 starts to settle and becomes flocs under the action of the flocculant. The advantage of the electric control metering valve 14 is that the worker can pre-adjust the opening degree of the electric control metering valve 14, accurately master the amount of medicine discharged each time, and there is no need for manual feeding. The staff only needs to connect the pipe with a container connected to one end to the drain pipe 16 at the lower end of the sedimentation tank 15. Then, due to the existence of the flocculant, the dust in the dust mixed liquid in the sedimentation tank 15 settles at the bottom of the sedimentation tank 15. Just open the second cut-off valve 17, and due to the action of gravity and the water pressure in the sedimentation tank 15, the deposited dust is discharged through the pipe. At this time, close the second cut-off valve 17. The remaining water in the sedimentation tank 15 is a mixture of flocculant and water, called mixed water, which can continue to settle and treat the next incoming dust mixed water, without the need for the staff to add flocculant frequently and repeatedly;

[0022] Working principle: First, the staff connects the pipe generating soot to the first connecting flange 4 through bolts to introduce the soot into the exhaust pipe 1. Then, the water pipe with a water storage device connected to one end is connected to the second connecting flange 8. A sedimentation tank 15 is provided at the lower end of the exhaust pipe 1, and a discharge pipe 13 is provided outside the exhaust pipe 1. The discharge pipe 13 penetrates the exhaust pipe 1 and extends above the sedimentation tank 15, and an electric control metering valve 14 is provided on the discharge pipe 13 and is connected by a rotating hinge. When the soot enters the exhaust pipe 1, the spray heads provided on the inner wall of the exhaust pipe 1 start to spray water mist. The water mist mixes with the dust scattered in the air and descends into the sedimentation tank 15 at the lower end of the exhaust pipe 1. Then, the pipe with a flocculant storage container provided with a material pump connected to one end is connected to the feed port of the electric control metering valve 14. At this time, the worker remotely controls the electric control metering valve 14 to open and inputs the flocculant into the sedimentation tank 15 through the discharge pipe 13. The dust in the water in the sedimentation tank 15 starts to settle and becomes flocs under the action of the flocculant. The advantage of the electric control metering valve 14 is that the worker can pre-adjust the opening degree of the electric control metering valve 14 and accurately control the amount of medicine discharged each time. The staff only needs to connect the pipe with a container connected to one end to the drain pipe 16 at the lower end of the sedimentation tank 15. Then, due to the presence of the flocculant, the dust in the dust mixture in the sedimentation tank 15 settles at the bottom of the sedimentation tank 15. Just open the second shut-off valve 17, and due to the action of gravity and the water pressure in the sedimentation tank 15, the deposited dust is discharged through the pipe. At this time, close the second shut-off valve 17. The remaining water in the sedimentation tank 15 is a mixture of flocculant and water, called mixed water, which can continue to settle and treat the next incoming dust mixed water, without the staff adding flocculant frequently and multiple times.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fly ash sedimentation device, comprising a smoke exhaust pipe (1), one end of the smoke exhaust pipe (1) is provided with a smoke inlet pipe (2), and a first shut-off valve (3) is arranged on the smoke inlet pipe (2); It is characterized in that: It further comprises a support block (5), the support block (5) is arranged on the smoke exhaust pipe (1), a water delivery pipe (6) is arranged on the support block (5), one end of the water delivery pipe (6) extends into the smoke exhaust pipe (1), a spray head (10) is arranged at the end of the water delivery pipe (6) extending into the smoke exhaust pipe (1), a water pump (7) is arranged on the water delivery pipe (6), a second connecting flange (8) is arranged at the water inlet position of the water pump (7), a sedimentation tank (15) is arranged at the lower end of the smoke exhaust pipe (1), a discharge pipe (13) is arranged on the smoke exhaust pipe (1), an electric control metering valve (14) is arranged on the discharge pipe (13), a drain pipe (16) is arranged at the lower end of the sedimentation tank (15), and a smoke exhaust port (9) is opened at the upper end of the smoke exhaust pipe (1).

2. The fly ash sedimentation device according to claim 1, wherein: A second shut-off valve (17) is arranged on the drain pipe (16), and the second shut-off valve (17) is bolted to the drain pipe (16).

3. The fly ash sedimentation device according to claim 1, wherein: A first connecting flange (4) is arranged at the water inlet position of the first shut-off valve (3), and the first connecting flange (4) is bolted to the first shut-off valve (3).

4. The fly ash sedimentation device according to claim 1, characterized in that: A filter screen (18) is arranged on the smoke exhaust port (9).

5. The fly ash sedimentation device according to claim 1, characterized in that: A large-aperture wire mesh (11) is arranged on the inner wall of the smoke exhaust pipe (1) below the spray head (10).

6. The fly ash sedimentation device according to claim 1, characterized in that: Support columns (12) are arranged at the lower end of the smoke exhaust pipe (1), and the support columns (12) are welded to the smoke exhaust pipe (1).

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