Flue gas desulfurization and denitrification powder spraying device for waste incineration power plant

Abstract

The utility model discloses a waste incineration power plant flue gas desulfurization denitration powder injection device, which comprises a tank body as well as a gas inlet pipe and an exhaust pipe which are connected with the tank body, the tank body is connected with an injection mechanism, the injection mechanism comprises powder injection equipment, a plurality of nozzles, a motor, a conveying pipe and a connector III, the powder injection equipment is communicated with the conveying pipe, and the connector III is communicated with the motor. One end of the conveying pipe is connected with a third connector, the third connector is communicated with the multiple spray heads, the motor is used for driving the multiple spray heads to rotate synchronously, a stirring mechanism used for stirring gas is connected into the tank body, and the stirring mechanism is in butt joint with the third connector. According to the utility model, the spraying range can be enlarged, further, the transmission rod and the driving teeth are driven to rotate by the rotation of the connector III, and the driving teeth are matched with the two driven teeth, so that the synchronous rotation of the two stirrers is realized, flue gas and powder are stirred, mixed and contacted more sufficiently, the reaction effect is improved, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to garbage incineration treatment technical field, concretely for a kind of powder injection device for garbage incineration power plant flue gas desulfurization and denitrification. BACKGROUND

[0002] Garbage incineration is through proper thermal decomposition, combustion, melting etc., so that garbage is reduced in volume by oxidation under high temperature, and becomes residue or molten solid material process.Garbage incineration power generation is the work of introducing, digesting and absorbing garbage incineration plant and garbage incineration equipment and innovation.Life garbage incineration flue gas dioxin is the problem that world each country is generally concerned about in recent years.Dioxin class toxic substance causes great harm to environment, effectively control dioxin class substance generation and diffusion, direct relation garbage incineration and garbage power generation technology popularization and application.

[0003] And garbage incineration flue gas needs to be purified operation, flue gas is transported to tank, powder is sprayed out by multiple spray heads, and flue gas is contacted, the existing spray head is often fixedly arranged, so that flue gas cannot comprehensively contact and fully mix powder, and the effect of flue gas purification is reduced. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of powder injection device for garbage incineration power plant flue gas desulfurization and denitrification, with the advantage that it can increase injection range, flue gas and powder are mixed by stirring, contact more fully, improve reaction effect, solve the problem raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of powder injection device for garbage incineration power plant flue gas desulfurization and denitrification, including tank and the gas inlet pipe, exhaust pipe connected to tank, the tank is connected with injection mechanism, the injection mechanism includes powder injection equipment, multiple spray heads, motor, conveying pipe, interface three, the powder injection equipment is conducted in conveying pipe, one end of the conveying pipe is connected with interface three, interface three is conducted in multiple spray heads, the motor is used to drive multiple spray heads synchronous rotation, the tank is connected with the stirring mechanism for gas stirring, the stirring mechanism is docked with interface three.

[0006] Preferably, the injection mechanism further includes gear one, gear two, connecting pipe, interface one, interface two, multiple discharge pipes, rotating ring, the power output end of the motor is connected with gear one, the gear one is connected with gear two, the gear two is fixedly connected with conveying pipe, the discharge end of the powder injection equipment is connected with connecting pipe, one end of the connecting pipe is connected with interface one, the interface one is connected with interface two, the interface two is connected to the top of conveying pipe, both ends of the discharge pipe are connected with interface three, spray head, the spray head is connected to rotating ring.

[0007] Preferably, the gear one and the gear two are rotationally connected to the top of the tank body.

[0008] Preferably, the interface one and the interface two are rotationally and sealingly connected.

[0009] Preferably, a motor base is connected to the top of the tank body, and the motor is fixed to the motor base.

[0010] Preferably, the stirring mechanism comprises a transmission rod, a cross plate, a transmission box, a driving gear, two driven gears and two stirrers, two ends of the transmission rod are connected with the driving gear and the interface three, and the transmission rod is rotationally connected with the transmission box, the driving gear is meshingly connected with the two driven gears, the stirrers are connected with the driven gears, one end of the cross plate is connected with the transmission box, and the other end of the cross plate is connected with the tank body.

[0011] Preferably, the driving gear and the driven gear are rotationally connected to the inner bottom end of the transmission box.

[0012] Preferably, the conveying pipe penetrates through the top of the tank body, and the conveying pipe is rotationally connected with the tank body.

[0013] Compared with the prior art, the utility model has the advantages that the utility model discloses a spraying mechanism and a stirring mechanism, a motor can drive a gear one to rotate, the gear one cooperates with a gear two, conveying pipe rotation is realized, and then interface three and a plurality of spray heads are driven to rotate, the spraying range is increased, further, the rotation of the interface three drives a transmission rod and a driving gear to rotate, the driving gear cooperates with two driven gears, two stirrers are synchronously rotated, smoke and powder are stirred and mixed, contact is more sufficient, reaction effect is improved, and the utility model has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the perspective view of the utility model;

[0015] Figure 2 It is the internal structure schematic view of the tank body of the utility model;

[0016] Figure 3 It is Figure 2 the partial view;

[0017] Figure 4 It is the stirring mechanism structure schematic view of the utility model.

[0018] In the figure: 1, tank body; 2, motor base; 3, exhaust pipe; 4, air inlet pipe; 5, motor; 6, powder injection device; 7, connecting pipe; 8, conveying pipe; 9, rotating ring; 10, spray head; 11, cross plate; 12, transmission rod; 13, transmission box; 14, stirrer; 15, gear one; 16, gear two; 17, interface one; 18, interface two; 19, interface three; 20, discharge pipe; 21, driving tooth; 22, driven tooth. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. 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 those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figures 1 to 4 The utility model provides a kind of powder injection device for garbage incineration power plant flue gas desulfurization and denitrification, including tank body 1 and the air inlet pipe 4, exhaust pipe 3 connected to tank body 1, flue gas enters tank body 1 from air inlet pipe 4 and is handled, and moves from below to top, and gas is discharged from exhaust pipe 3 after purification.The tank body 1 is connected with injection mechanism, and the injection mechanism includes powder injection device 6, multiple spray heads 10, motor 5, conveying pipe 8, interface three 19, powder injection device 6 is conducted on conveying pipe 8, one end of conveying pipe 8 is connected with interface three 19, interface three 19 is conducted on multiple spray heads 10, motor 5 is used to drive multiple spray heads 10 synchronous rotation, and stirring mechanism for gas stirring is connected in tank body 1, and stirring mechanism is docked with interface three 19.

[0021] When powder is sprayed, powder injection device 6 sends powder to conveying pipe 8 in connecting pipe 7, then is sent to each discharge pipe 20 by interface three 19, and finally is sprayed from spray head 10, and contacts with gas to react.At the same time, motor 5 drives gear one 15 to rotate, gear one 15 drives gear two 16 to rotate, and then drives conveying pipe 8 to rotate, realizes the rotation of interface three 19, discharge pipe 20 and spray head 10, and then increases powder spraying range, improves processing effect.

[0022] The spraying mechanism further comprises a gear one 15, a gear two 16, a connecting pipe 7, an interface one 17, an interface two 18, a plurality of discharge pipes 20, a rotating ring 9, and the power output end of the motor 5 is connected with the gear one 15, the gear one 15 is connected with the gear two 16, the gear two 16 is fixedly connected with the conveying pipe 8, the discharge end of the powder spraying device 6 is connected with the connecting pipe 7, one end of the connecting pipe 7 is connected with the interface one 17, the interface one 17 is connected with the interface two 18, the interface two 18 is connected at the top of the conveying pipe 8, the two ends of the discharge pipe 20 are connected with an interface three 19 and a spray head 10, and the spray head 10 is connected with the rotating ring 9.

[0023] The gear one 15 and the gear two 16 are rotatably connected at the top of the tank body 1, the stability of the rotation of the gear one 15 and the gear two 16 is improved, and the gear one 15 and the gear two 16 are in meshing connection, the transmission ratio is constant, and the efficiency is high.

[0024] The interface one 17 and the interface two 18 are rotatably and sealingly connected, when the conveying pipe 8 rotates, the interface two 18 can be synchronously driven to rotate, and the interface one 17 and the interface two 18 are not prone to leakage.

[0025] The motor seat 2 is connected at the top of the tank body 1, and the motor 5 is fixed on the motor seat 2, so that the motor 5 is well fixed.

[0026] The stirring mechanism comprises a transmission rod 12, a cross plate 11, a transmission box 13, a driving tooth 21, two driven teeth 22 and two stirrers 14, the two ends of the transmission rod 12 are connected with the driving tooth 21 and the interface three 19, the transmission rod 12 is rotatably connected with the transmission box 13, the driving tooth 21 is in meshing connection with the two driven teeth 22, the stirrer 14 is connected with the driven tooth 22, one end of the cross plate 11 is connected with the transmission box 13, and the other end is connected with the tank body 1. When spraying powder, the rotation of the interface three 19 can drive the transmission rod 12 to rotate, the transmission rod 12 drives the driving tooth 21 to rotate, the driving tooth 21 cooperates with the two driven teeth 22, the two stirrers 14 can be synchronously rotated, and the rotation directions of the two stirrers 14 are opposite, so that the smoke and the powder are stirred and mixed, the contact is more sufficient, and the reaction effect is improved.

[0027] The driving tooth 21 and the driven tooth 22 are rotatably connected at the inner bottom end of the transmission box 13, the stability of the rotation of the driving tooth 21 and the driven tooth 22 is improved, that is, the two stirrers 14 rotate stably.

[0028] The conveying pipe 8 penetrates through the top of the tank body 1, and the conveying pipe 8 is rotatably connected with the tank body 1, and in cooperation with the use of the gear two 16, the plurality of spray heads 10, the plurality of discharge pipes 20 and the rotating ring 9 are supported to prevent falling.

[0029] Working principle: flue gas enters into the tank 1 through the inlet pipe 4 and moves from bottom to top. Then the powder injection device 6 delivers the powder into the spray head 10 through the connecting pipe 7, the delivery pipe 8 and the discharge pipe 20, and sprays out from the spray head 10 to contact and react with the gas. At the same time, the motor 5 drives the gear one 15 to rotate, the gear one 15 drives the gear two 16 to rotate, and further drives the delivery pipe 8, the interface three 19 and the plurality of spray heads 10 to rotate, thereby increasing the spraying range. Further, the rotation of the interface three 19 can drive the transmission rod 12 to rotate, the transmission rod 12 drives the driving tooth 21 to rotate, realizes the synchronous rotation of the two driven teeth 22, the driven teeth 22 drive the corresponding mixers 14 to rotate, and the rotation directions of the two mixers 14 are opposite, so that the flue gas and the powder are stirred and mixed, the contact is more sufficient, the reaction effect is improved, and finally the purified flue gas is discharged from the exhaust pipe 3.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for injecting a powder for flue gas desulfurization and denitrification in a waste incineration power plant, comprising a tank (1) and an air inlet pipe (4) and an air outlet pipe (3) connected to the tank (1), characterized in that, The tank body (1) is connected with a spraying mechanism, the spraying mechanism comprises a powder spraying device (6), a plurality of spray heads (10), a motor (5), a conveying pipe (8), an interface three (19), the powder spraying device (6) is communicated with the conveying pipe (8), one end of the conveying pipe (8) is connected with the interface three (19), the interface three (19) is communicated with the plurality of spray heads (10), the motor (5) is used for driving the plurality of spray heads (10) to rotate synchronously, a stirring mechanism for gas stirring is connected in the tank body (1), and the stirring mechanism is docked with the interface three (19).

2. The powder injection device for flue gas desulfurization and denitrification in a waste incineration power plant according to claim 1, characterized in that, The spraying mechanism further comprises a gear one (15), a gear two (16), a connecting pipe (7), an interface one (17), an interface two (18), a plurality of discharge pipes (20) and a rotating ring (9), a power output end of the motor (5) is connected with the gear one (15), the gear one (15) is connected with the gear two (16), the gear two (16) is fixedly connected with the conveying pipe (8), a discharge end of the powder spraying device (6) is connected with the connecting pipe (7), one end of the connecting pipe (7) is connected with the interface one (17), the interface one (17) is connected with the interface two (18), the interface two (18) is connected to the top of the conveying pipe (8), both ends of the discharge pipe (20) are connected with the interface three (19) and the spray head (10), and the spray head (10) is connected with the rotating ring (9).

3. The device according to claim 2, characterized in that, The gear one (15) and the gear two (16) are rotatably connected to the top of the tank body (1).

4. The device according to claim 3, characterized in that, The interface one (17) and the interface two (18) are rotatably and sealingly connected.

5. The device according to claim 1, characterized in that, A motor seat (2) is connected to the top of the tank body (1), and the motor (5) is fixed to the motor seat (2).

6. The device according to claim 1, characterized in that, The stirring mechanism comprises a transmission rod (12), a cross plate (11), a transmission box (13), a driving tooth (21), two driven teeth (22) and two stirrers (14), both ends of the transmission rod (12) are connected with the driving tooth (21) and the interface three (19), and the transmission rod (12) is rotatably connected with the transmission box (13), the driving tooth (21) is rotatably connected with the two driven teeth (22), the stirrer (14) is connected with the driven tooth (22), one end of the cross plate (11) is connected with the transmission box (13), and the other end is connected with the tank body (1).

7. The device according to claim 6, characterized in that, The driving tooth (21) and the driven tooth (22) are rotatably connected to the inner bottom end of the transmission box (13).

8. The device according to claim 1, characterized in that, The conveying pipe (8) penetrates through the top of the tank body (1), and the conveying pipe (8) is rotatably connected with the tank body (1).

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