In-furnace calcium spraying desulfurization device

Abstract

The utility model relates to the technical field of desulfurization devices, and discloses an in-furnace calcium spraying desulfurization device which comprises a desulfurization tower main body, a smoke inlet pipe connected with a boiler smoke outlet is fixedly connected to the bottom side of the left end of the desulfurization tower main body, a fixing plate is fixedly connected to the top side of the left end of the desulfurization tower main body, and a first pump body is arranged at the top end of the fixing plate. The left end of the first pump body is fixedly connected with a water inlet pipe connected with a water source, the right end of the first pump body is connected with a spray head through a supporting assembly, the bottom side of the front end of the desulfurizing tower body is fixedly connected with a desulfurizing agent conveying pipe, and the front end of the desulfurizing agent conveying pipe is fixedly connected with a second pump body. According to the utility model, the clamping sleeve is rotated, so that the connecting pipe can be separated from the clamping of the feeding pipe, then the connecting pipe is pulled out from the sealing sleeve, the connecting pipe and the feeding pipe are disconnected, the filter plate can be fixed in the smoke exhaust pipe through the clamping piece, and the filter plate is arranged in the smoke exhaust pipe, so that the smoke exhaust pipe is more convenient to clean. And limestone powder or other calcium-based substances are prevented from being discharged into the atmosphere along with the flue gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to desulfurization device technical field especially relates to furnace calcium injection desulfurization device. BACKGROUND

[0002] With the acceleration of industrialization process and the growth of energy demand, coal-fired boiler as important energy conversion equipment, has been widely used in the field of electric power, heating, industrial production etc. However, the harmful gases such as sulfur dioxide (SO2) produced in the process of coal combustion has caused the threat to the environment and human health, therefore, the development of efficient desulfurization technology has important significance for reducing pollutant emissions, protecting the environment.

[0003] In the existing desulfurization technology, the furnace calcium injection desulfurization device is widely used because of its simple structure and low cost. This device sprays limestone powder and other desulfurizer into the furnace, reacts with SO2 in the flue gas to generate calcium sulfate and other by-products, so as to achieve the purpose of desulfurization. However, the existing technology has some deficiencies, for example, the supply and replacement process of desulfurizer is complex, resulting in high maintenance cost and long downtime, for this, aiming at the technical problem, the furnace calcium injection desulfurization device is proposed. SUMMARY

[0004] The purpose of the utility model is to solve the shortcomings in the prior art, and the furnace calcium injection desulfurization device is provided, the rotating clamping sleeve can make the connecting pipe separate from the clamping of the feed pipe, then the connecting pipe is pulled out from the sealing sleeve, so that the connecting pipe and the feed pipe are disconnected, the filter plate can be fixed in the smoke exhaust pipe through the clamping piece, the filter plate is arranged in the smoke exhaust pipe, which prevents limestone powder or other calcium-based substances from being discharged into the atmosphere with flue gas.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] The furnace calcium injection desulfurization device comprises a desulfurization tower main body for desulfurization, a smoke inlet pipe connected with a boiler smoke outlet is fixedly connected to the bottom side of the left end of the desulfurization tower main body, a fixed plate is fixedly connected to the top side of the left end of the desulfurization tower main body, a pump body one is arranged at the top end of the fixed plate, a water inlet pipe connected with a water source is fixedly connected to the left end of the pump body one, a spray head is connected to the right end of the pump body one through a support assembly, a desulfurizer conveying pipe is fixedly connected to the bottom side of the front end of the desulfurization tower main body, a pump body two is fixedly connected to the front end of the desulfurizer conveying pipe, a storage pipe is fixedly connected to the top end of the pump body two, a connecting pipe is fixedly connected to the top end of the storage pipe, a clamping sleeve is rotatably connected to the outer wall of the connecting pipe, a threaded pipe is screwedly connected to the inner wall of the clamping sleeve, a feed pipe connected with a desulfurizer storage bin is rotatably connected to the inner wall of the threaded pipe, a smoke exhaust pipe is connected to the top end of the desulfurization tower main body through a support piece, and the smoke exhaust pipe is fixedly connected to the top end of the desulfurization tower main body, and a filter assembly is connected to the middle part of the outer wall of the smoke exhaust pipe through a clamping piece.

[0007] Further, the filter assembly comprises a connecting plate located at one end of the clamping piece, the connecting plate is slidably connected to the front side of the inner wall of the smoke exhaust pipe, the rear end of the connecting plate is fixedly connected with a filter plate, and the filter plate is arranged on the inner wall of the smoke exhaust pipe.

[0008] Further, the support assembly comprises a water outlet pipe located at one right end of the pump body, the water outlet pipe is fixedly connected to the outer periphery of the spray head, the outer wall of the water outlet pipe is fixedly connected with a fixing ring, the bottom end of the fixing ring is fixedly connected with a support plate, and the support plate is fixedly connected to the inner wall of the desulfurization tower body.

[0009] Further, the right end of the threaded pipe is fixedly connected with a sealing sleeve, and the sealing sleeve is arranged on the outer wall of the connecting pipe.

[0010] Further, the left end of the threaded pipe is fixedly connected with a limiting plate.

[0011] Further, the inner wall of the clamping sleeve is provided with a spring, one end of the spring is arranged on the inner wall of the clamping sleeve, and the other end of the spring is arranged on the right end of the limiting plate.

[0012] Further, the outer wall of the smoke exhaust pipe is fixedly connected with a support frame, and the support frame is fixedly connected to the top end of the desulfurization tower body.

[0013] Further, the front end of the connecting plate is fixedly connected with a handle.

[0014] The utility model has the following beneficial effects:

[0015] 1、The utility model discloses a desulfurizer storage bin can be quickly replaced, and the connecting pipe can be separated from the clamping of the feed pipe by rotating the clamping sleeve, then the connecting pipe is pulled out from the sealing sleeve, so that the connecting pipe and the feed pipe are disconnected, on the contrary, the connecting pipe is inserted into the feed pipe on the new storage bin through the sealing sleeve, then the feed pipe and the connecting pipe are clamped by rotating the clamping sleeve, so that the continuous supply of the desulfurizer can be ensured, the desulfurization efficiency is maintained, and the flue gas emission meets the environmental protection standard.

[0016] 2、The utility model discloses that the unreacted desulfurizer in the flue gas can be separated, the filter plate is fixed in the smoke exhaust pipe through the clamping piece, the filter plate is arranged in the smoke exhaust pipe, the limestone powder or other calcium-based substances are prevented from being discharged into the atmosphere with the flue gas, so that the flue gas meets the environmental protection standard before being discharged, and the pollutant emission is reduced. DRAWINGS

[0017] Figure 1 The utility model discloses a three-dimensional view of the calcium injection desulfurization device in the furnace is provided;

[0018] Figure 2The sealing sleeve structure schematic diagram of the calcium injection desulfurization device in the furnace is provided by the utility model.

[0019] Figure 3 The filter plate structure schematic diagram of the calcium injection desulfurization device in the furnace is provided by the utility model.

[0020] Figure 4 The nozzle structure schematic diagram of the calcium injection desulfurization device in the furnace is provided by the utility model.

[0021] Legend:

[0022] 1, desulfurization tower main body;2, fixed plate;3, pump body one;4, water outlet pipe;5, fixed ring;6, support plate;7, nozzle;8, water inlet pipe;9, smoke inlet pipe;10, desulfurizer conveying pipe;11, pump body two;12, storage pipe;13, connecting pipe;14, clamping sleeve;15, spring;16, sealing sleeve;17, threaded pipe;18, limiting plate;19, feed pipe;20, smoke exhaust pipe;21, support frame;22, connecting plate;23, filter plate;24, clamping piece;25, handle. Specific implementation

[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0024] Reference Figures 1-3 An embodiment provided by the utility model: the calcium injection desulfurization device in the furnace, including the desulfurization tower main body 1 for desulfurization, the smoke inlet pipe 9 that is connected with the boiler smoke outlet is fixedly connected with the desulfurization tower main body 1 left end bottom side, the fixed plate 2 is fixedly connected with the desulfurization tower main body 1 left end top side, the pump body one 3 is provided with the fixed plate 2 top end, the water inlet pipe 8 that is connected with water source is fixedly connected with the pump body one 3 left end, the nozzle 7 is connected with the pump body one 3 right end through the water outlet pipe 4, the desulfurizer conveying pipe 10 is fixedly connected with the desulfurization tower main body 1 front end bottom side, the pump body two 11 is fixedly connected with the desulfurizer conveying pipe 10 front end, the storage pipe 12 is fixedly connected with the pump body two 11 top end, the connecting pipe 13 is fixedly connected with the storage pipe 12 top end, the clamping sleeve 14 is rotatably connected with the connecting pipe 13 outer wall, the threaded pipe 17 is screwedly connected with the clamping sleeve 14 inner wall, the feed pipe 19 that is connected with the desulfurizer storage bin is rotatably connected with the threaded pipe 17 inner wall, the smoke exhaust pipe 20 is connected with the desulfurization tower main body 1 top end through the support piece, and the smoke exhaust pipe 20 is fixedly connected at the desulfurization tower main body 1 top end, and the smoke exhaust pipe 20 outer wall middle part is connected with the connecting plate 22 through the clamping piece 24;

[0025] Specifically, when the desulfurizer in the storage bin is used up, rotating the clamping sleeve 14 can make the connecting pipe 13 disengage from the clamping of the feed pipe 19, and then the connecting pipe 13 is pulled out of the sealing sleeve 16 to disconnect the connecting pipe 13 and the feed pipe 19, and then a new storage bin is replaced, the connecting pipe 13 is inserted into the feed pipe 19 on the new storage bin through the sealing sleeve 16, and then the feed pipe 19 and the connecting pipe 13 are clamped by rotating the clamping sleeve 14, which can quickly replace the storage bin, so as to ensure the continuous supply of the desulfurizer, thereby maintaining the desulfurization efficiency, ensuring that the flue gas emission meets the environmental protection standard, and at the same time when the connecting pipe 13 is connected with the feed pipe 19 through the clamping sleeve 14, the spring 15 is compressed, which can prevent the clamping sleeve 14 from loosening accidentally under the action of the spring 15, and the sealing sleeve 16 can prevent the desulfurizer from leaking from the connection between the feed pipe 19 and the pump body 3 during the operation of the device.

[0026] Referring to Figure 1 , Figure 3 and Figure 4 , the connecting plate 22 near one end of the clamping piece 24 is slidingly connected to the front side of the inner wall of the smoke exhaust pipe 20, the rear end of the connecting plate 22 is fixedly connected with the filter plate 23, and the filter plate 23 is arranged on the inner wall of the smoke exhaust pipe 20, the water outlet pipe 4 at the right end of the pump body 3 is fixedly connected to the outer periphery of the spray head 7, the outer wall of the water outlet pipe 4 is fixedly connected with the fixed ring 5, the bottom end of the fixed ring 5 is fixedly connected with the support plate 6, the support plate 6 is fixedly connected to the inner wall of the desulfurization tower body 1, the right end of the threaded pipe 17 is fixedly connected with the sealing sleeve 16 arranged on the outer wall of the connecting pipe 13, the left end of the threaded pipe 17 is fixedly connected with the limiting plate 18, the inner wall of the clamping sleeve 14 is provided with the spring 15, one end of the spring 15 is arranged on the inner wall of the clamping sleeve 14, the other end of the spring 15 is arranged on the right end of the limiting plate 18, the outer wall of the smoke exhaust pipe 20 is fixedly connected with the support frame 21, the support frame 21 is fixedly connected to the top end of the desulfurization tower body 1, and the front end of the connecting plate 22 is fixedly connected with the handle 25;

[0027] Specifically, the filter plate 23 can be fixed in the smoke exhaust pipe 20 by the clamping piece 24, and the filter plate 23 arranged in the smoke exhaust pipe 20 can help separate the unreacted desulfurizing agent such as limestone powder or other calcium-based substances in the flue gas to prevent them from being discharged into the atmosphere with the flue gas, so as to ensure that the flue gas meets the environmental protection standard before being discharged, thereby reducing the emission of pollutants, when the filter plate 23 is used for a period of time, the connecting plate 22 is separated from the smoke exhaust pipe 20 by the clamping piece 24, then the filter plate 23 is pulled out by holding the handle 25, and the filter plate 23 is cleaned or replaced, the support strength of the smoke exhaust pipe 20 can be enhanced by the support frame 21 to prevent the smoke exhaust pipe 20 from tilting and collapsing when the filter plate 23 is taken out, after the water source is connected with the water inlet pipe 8, the water is sent to the spray head 7 by the pump body 3, then the water is sprayed out by the spray head 7, the water is fully mixed with the flue gas, thereby further desulfurizing, and the water outlet pipe 4 can be fixed in the desulfurizing tower body 1 by the fixing ring 5 and the support plate 6.

[0028] Working principle: connect the water inlet pipe 8 with the water source, then insert the connecting pipe 13 into the feeding pipe 19 on the desulfurizing agent storage bin through the sealing sleeve 16, then make the feeding pipe 19 and the connecting pipe 13 clamped by rotating the clamping sleeve 14, then start the pump body 11 to spray the desulfurizing agent in the storage pipe 12 into the desulfurizing tower body 1 through the desulfurizing agent conveying pipe 10 after the flue gas enters the desulfurizing tower body 1 from the smoke inlet pipe 9, then start the pump body 3 to send the water to the spray head 7, then spray the water out of the spray head 7, the water is fully mixed with the flue gas, thereby further desulfurizing, and the flue gas after desulfurizing is discharged from the smoke exhaust pipe 20, and will pass through the filter plate 23 during the discharging process, thereby separating the unreacted desulfurizing agent in the flue gas, when the desulfurizing agent in the storage bin is used up, the connecting pipe 13 can be separated from the clamping of the feeding pipe 19 by rotating the clamping sleeve 14, then the connecting pipe 13 is pulled out of the sealing sleeve 16, and then the connecting pipe 13 is inserted into the feeding pipe 19 on the new storage bin, when the filter plate 23 is used for a period of time, the connecting plate 22 is separated from the smoke exhaust pipe 20 by the clamping piece 24, then the filter plate 23 is pulled out by holding the handle 25, and the filter plate 23 is cleaned or replaced.

[0029] Finally, it should be noted that the above-described preferred embodiments of the present application are merely used for limiting the present application, and although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for in-furnace desulfurization by calcium injection, characterized by: The utility model relates to a desulfurization tower body (1) for desulfurization, the left end bottom side fixed connection of desulfurization tower body (1) is connected with the smoke pipe (9) of boiler exhaust port, the left end top side fixed connection of desulfurization tower body (1) is fixed plate (2), the fixed plate (2) top is provided with pump body one (3), the left end fixed connection of pump body one (3) is connected with the water inlet pipe (8) of water source, the right end of pump body one (3) is connected with the shower nozzle (7) through support subassembly, the front end bottom side fixed connection of desulfurization tower body (1) is connected with the desulfurizer conveying pipe (10), the front end fixed connection of desulfurizer conveying pipe (10) is pump body two (11), the top fixed connection of pump body two (11) is storage tube (12), the top fixed connection of storage tube (12) is connected pipe (13), the outer wall rotation is connected with the engagement sleeve (14) of connected pipe (13), the inner wall screw thread is connected with the threaded tube (17) of engagement sleeve (14), the inner wall rotation is connected with the feed pipe (19) of desulfurizer storage bin of threaded tube (17), the top of desulfurization tower body (1) is connected with the smoke pipe (20) through support, and smoke pipe (20) is fixedly connected at the top of desulfurization tower body (1), and the outer wall middle part of smoke pipe (20) is connected with filter subassembly through clamp piece (24).

2. The in-furnace calcium injection desulfurization device according to claim 1, characterized by: The filter subassembly includes a connecting plate (22) located near one end of the clamp piece (24), the connecting plate (22) is slidingly connected to the inner wall front side of the smoke pipe (20), the connecting plate (22) rear end is fixedly connected with a filter plate (23), and the filter plate (23) is arranged on the inner wall of the smoke pipe (20).

3. The in-furnace calcium injection desulfurization device according to claim 1, characterized by: The support subassembly includes a water outlet pipe (4) located at the right end of the pump body one (3), the water outlet pipe (4) is fixedly connected to the outer periphery of the shower nozzle (7), the water outlet pipe (4) outer wall is fixedly connected with a fixed ring (5), the fixed ring (5) bottom end is fixedly connected with a support plate (6), and the support plate (6) is fixedly connected to the inner wall of the desulfurization tower body (1).

4. The in-furnace calcium injection desulfurization device according to claim 1, characterized by: The right end of the threaded tube (17) is fixedly connected with a sealing sleeve (16), and the sealing sleeve (16) is arranged on the outer wall of the connected pipe (13).

5. The in-furnace calcium injection desulfurization device according to claim 1, characterized by: The left end of the threaded tube (17) is fixedly connected with a limiting plate (18).

6. The in-furnace calcium injection desulfurization device according to claim 1, characterized by: The inner wall of the engagement sleeve (14) is provided with a spring (15), one end of the spring (15) is arranged on the inner wall of the engagement sleeve (14), and the other end of the spring (15) is arranged on the right end of the limiting plate (18).

7. The in-furnace calcium injection desulfurization device according to claim 1, characterized by: The outer wall of the smoke pipe (20) is fixedly connected with a support frame (21), and the support frame (21) is fixedly connected to the top of the desulfurization tower body (1).

8. The in-furnace calcium injection desulfurization device according to claim 2, characterized by: The front end of the connecting plate (22) is fixedly connected with a handle (25).

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