Multi-tube type efficient desulfurization device

Abstract

The utility model relates to the technical field of desulfurization, and discloses a multi-tube type high-efficiency desulfurization device, which comprises a bottom bin, a desulfurization part and a discharge bin, the desulfurization part is formed by vertically stacking and fixing a plurality of desulfurization components together, the lowest desulfurization component is fixed at an opening at the top of the bottom bin, and the discharge bin is fixed at the bottom of the bottom bin. And the discharge bin is fixedly mounted at an opening in the top of the uppermost desulfurization assembly. According to the multi-pipe type efficient desulfurization device, as the mounting shaft is in a reciprocating forward and reverse state, the spraying pipe can be driven to rotate clockwise and then rotate anticlockwise to reset, so that the atomizing nozzle is in a small-angle swinging state, and spraying corners and dead angles existing when the atomizing nozzle is in a fixed state can be supplemented in the moving process of the atomizing nozzle; the atomizing nozzle is free of corners and dead corners during spraying, sufficient and uniform contact between flue gas and lime emulsion is guaranteed, and the desulfurization effect on the flue gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization, in particular to a multi-tube high-efficiency desulfurization device. Background Art

[0002] Flue gas desulfurization is an important industrial environmental protection technology, mainly used to reduce sulfur dioxide (SO2) emissions generated in the process of burning coal and oil, so as to prevent air pollution and the formation of acid rain.

[0003] With regard to the existing related technologies, the inventors believe that the following defects often exist: when spraying desulfurization of flue gas, lime emulsion is sprayed by a nozzle, and the sulfur dioxide in the flue gas is removed by the contact reaction between the lime solution and the sulfur dioxide in the flue gas. The nozzle adopts a fixed-point spraying method, and the spraying range is fixed and consistent. At the corners and dead corners of the nozzle, the flue gas passing through this place is exposed to very little lime emulsion and cannot fully and evenly contact with the lime emulsion, resulting in poor desulfurization effect. Utility Model Content

[0004] In view of the fact that the spraying range of the above-mentioned existing nozzles is fixed and consistent, the flue gas passing through the corners and dead corners of the nozzles is exposed to very little lime emulsion and cannot fully and evenly contact the lime emulsion, resulting in poor desulfurization effect, the present utility model is proposed.

[0005] Therefore, the utility model aims to provide a multi-tube high-efficiency desulfurization device, which aims to: set up movable nozzles to reduce the corners and dead angles of the nozzles, so that the sulfur dioxide in the flue gas can fully contact and react with the lime emulsion.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a multi-tube high-efficiency desulfurization device, comprising a bottom bin, a desulfurization section and a discharge bin, wherein the desulfurization section is composed of a plurality of desulfurization components stacked vertically and fixed together, and the bottom desulfurization component is fixed at the open opening at the top of the bottom bin, and the discharge bin is fixedly installed at the open opening at the top of the top desulfurization component;

[0007] The desulfurization component includes a vertical bin, a swirl plate is fixedly installed on the lower side of the vertical bin, a spray component is fixedly installed inside the vertical bin and above the swirl plate, the spray component includes an annular water tank rotatably installed inside the vertical bin, a circle of spray pipes is welded to the inner wall of the annular water tank, and atomizing nozzles are fixedly installed at the bottom of the horizontal pipe end of the spray pipe and the end of the spray pipe away from the annular water tank.

[0008] As a preferred solution of the multi-tube high-efficiency desulfurization device described in the utility model, the spray assembly also includes an annular track welded inside the vertical bin, and arc-shaped sliders sliding on the annular track are welded around the outer wall of the annular water tank.

[0009] As a preferred solution of the multi-tube high-efficiency desulfurization device described in the utility model, an annular rack is welded at the bottom of the annular water tank, a driving source is fixedly installed on the outer wall of the vertical bin, and the driving end of the driving source is located inside the vertical bin and is fixedly installed with a driving gear meshing with the annular rack.

[0010] As a preferred solution of a multi-tube high-efficiency desulfurization device described in the utility model, the driving source includes a mounting shaft rotatably embedded in the vertical bin through a bearing, and a pad welded to the outer wall of the vertical bin, one end of the mounting shaft located outside the vertical bin is sleeved with a spur rack, a linear motor is fixedly installed on the top of the pad, and a transmission gear meshing with the spur rack is fixedly installed on the movable end of the linear motor.

[0011] As a preferred solution of the multi-tube high-efficiency desulfurization device described in the utility model, a feed connecting pipe is inserted and installed at the upper position of one side of the vertical bin, and a metal hose is fixedly installed between the liquid outlet end of the feed connecting pipe and the liquid inlet end of the top of the annular water tank.

[0012] As a preferred solution of the multi-tube high-efficiency desulfurization device described in the utility model, a conical block is welded at the center of the top of the swirl plate, and the sharp end of the conical block faces upward.

[0013] As a preferred solution of the multi-tube high-efficiency desulfurization device described in the utility model, a limiting ring edge is welded on the outer edge of the top of the swirl plate, and a slope edge is arranged on the inner side of the limiting ring edge.

[0014] Beneficial effects of the utility model:

[0015] 1. In the utility model, since the installation shaft is in a reciprocating forward and reverse state, it will drive the spray pipe to rotate clockwise first, and then rotate counterclockwise to reset, so that the atomizing nozzle is in a small-angle swing state. During its movement, the spraying corners and dead corners that exist when it is in a fixed state will be supplemented, so that the atomizing nozzle has no corners and dead corners when spraying, ensuring the sufficiency and uniformity of the contact between the flue gas and the lime emulsion, and improving the desulfurization effect of the flue gas.

[0016] 2. In the utility model, multiple desulfurization components desulfurize the flue gas multiple times. The repetitive desulfurization operation is conducive to ensuring the comprehensive desulfurization of sulfur dioxide in the flue gas, with good purification effect. In addition, the modular design is adopted, which is convenient for matching and assembling according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of a multi-tube high-efficiency desulfurization device.

[0019] Figure 2 The utility model is a schematic diagram of the structure of a vertical bin of a multi-tube high-efficiency desulfurization device.

[0020] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a swirl plate of a multi-tube high-efficiency desulfurization device.

[0021] Figure 4 The utility model is a schematic diagram of the structure of a spray assembly of a multi-tube high-efficiency desulfurization device.

[0022] Figure 5 The utility model is a schematic diagram of the structure of a driving source of a multi-tube high-efficiency desulfurization device.

[0023] Description of reference numerals:

[0024] 1. Bottom bin; 2. Desulfurization component; 21. Vertical bin; 22. Swirl plate; 221. Conical block; 222. Limiting ring edge; 23. Spray component; 231. Driving source; 2311. Pad; 2312. Linear motor; 2313. Straight rack; 2314. Transmission gear; 2315. Mounting shaft; 232. Annular track; 233. Arc slider; 234. Annular water tank; 235. Spray pipe; 236. Atomizing nozzle; 237. Annular rack; 238. Driving gear; 239. Metal hose; 2310. Feed connecting pipe; 3. Discharge bin. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] Example 1

[0027] Reference Figure 1-5, which is the first embodiment of the utility model, provides a multi-tube high-efficiency desulfurization device, which includes a bottom bin 1, a desulfurization part and a discharge bin 3. The flue gas inlet of the bottom bin 1 is welded with an air inlet bin. The desulfurization part is composed of multiple desulfurization components 2 stacked and fixed together vertically, and the bottom desulfurization component 2 is fixed at the open top of the bottom bin 1. Multiple desulfurization components 2 desulfurize the flue gas multiple times. The repetitive desulfurization operation is conducive to ensuring the comprehensive desulfurization of sulfur dioxide in the flue gas, and the purification effect is good. In addition, the modular design is adopted, which is convenient for matching and assembling according to actual conditions. The discharge bin 3 is fixedly installed at the open top of the top desulfurization component 2;

[0028] The desulfurization assembly 2 includes a vertical bin 21, a swirl plate 22 is fixedly installed on the lower side of the vertical bin 21, a spray assembly 23 is fixedly installed inside the vertical bin 21 and above the swirl plate 22, and the spray assembly 23 includes an annular water tank 234 rotatably installed inside the vertical bin 21, a circle of spray pipes 235 are welded on the inner wall surface of the annular water tank 234, and the spray pipes 235 are connected to the inside of the annular water tank 234, and the bottom of the horizontal pipe end of the spray pipe 235 and the end of the spray pipe 235 away from the annular water tank 234 are fixedly installed with atomizing nozzles 236, due to the meshing of the driving gear 238 and the annular rack 237 The transmission will drive the annular rack 237 to drive the annular water tank 234 to rotate, thereby making the atomizing nozzle 236 in a rotating state. Since the mounting shaft 2315 is in a reciprocating forward and reverse state, it will drive the spray pipe 235 to rotate clockwise first, and then rotate counterclockwise to reset, so that the atomizing nozzle 236 is in a small-angle swinging state. During its movement, it will supplement the spraying edges and dead corners that exist when it is in a fixed state, so that the atomizing nozzle 236 has no edges and dead corners when spraying, thereby ensuring the sufficiency and uniformity of the contact between the flue gas and the lime emulsion, and improving the desulfurization effect of the flue gas.

[0029] The spray assembly 23 also includes an annular track 232 welded inside the vertical bin 21 , and arc-shaped sliders 233 sliding on the annular track 232 are welded around the outer wall of the annular water tank 234 to ensure the stability of the installation of the annular water tank 234 .

[0030] An annular rack 237 is welded to the bottom of the annular water tank 234 , and a driving source 231 is fixedly installed on the outer wall of the vertical bin 21 . The driving end of the driving source 231 is located inside the vertical bin 21 and is fixedly installed with a driving gear 238 meshing with the annular rack 237 .

[0031] The driving source 231 includes a mounting shaft 2315 rotatably mounted on the vertical bin 21 through a bearing, and a backing plate 2311 welded to the outer wall of the vertical bin 21. The driving gear 238 is sleeved on one end of the mounting shaft 2315 located inside the vertical bin 21. The end of the mounting shaft 2315 located outside the vertical bin 21 is sleeved with a spur rack 2313. A linear motor 2312 is fixedly mounted on the top of the backing plate 2311. A gear 238 is fixedly mounted on the movable end of the linear motor 2312. The meshing transmission gear 2314 is driven by the linear motor 2312 to move back and forth. Due to the meshing of the transmission gear 2314 and the spur rack 2313, the mounting shaft 2315 is in a rotating state and drives the driving gear 238 to rotate. Due to the meshing transmission of the driving gear 238 and the annular rack 237, the annular rack 237 is driven to drive the annular water tank 234 to rotate, thereby causing the atomizing nozzle 236 to rotate.

[0032] A feed connecting pipe 2310 is installed at the upper position on one side of the vertical bin 21, and the liquid inlet end of the feed connecting pipe 2310 is located outside the vertical bin 21. A metal hose 239 is fixedly installed between the liquid outlet end of the feed connecting pipe 2310 and the liquid inlet end at the top of the annular water tank 234. The metal hose 239 can be stretched to ensure that the atomizing nozzle 236 can stably transport lime emulsion in a rotating state.

[0033] A conical block 221 is welded at the center of the top of the cyclone plate 22, and the sharp end of the conical block 221 faces upward. When the lime emulsion falls on it, there is no hanging platform on it and it can only flow downward, preventing the lime emulsion from staying in the center of the cyclone plate 22.

[0034] A limiting ring edge 222 is welded to the outer edge of the top of the swirl plate 22, and a slope edge is arranged on the inner side of the limiting ring edge 222. The setting of the slope edge makes the top edge of the limiting ring edge 222 pointed, which also prevents the lime emulsion from staying on the side of the swirl plate 22.

[0035] During use, the flue gas enters the bottom bin 1 and flows upward, and is sprayed and filtered through multiple desulfurization components 2 to remove sulfur dioxide in the flue gas, and is finally discharged to the outside through 3;

[0036] The principle of flue gas desulfurization through the desulfurization component 2 is as follows: when the flue gas enters the interior of the vertical bin 21, it is guided by the swirl plate 22 to perform high-speed swirl, and the flue gas swirl moves upward. At this time, the lime emulsion is pumped by the pump and transported to the interior of the feed connecting pipe 2310. It is guided by the metal hose 239 and finally fills the inner cavity of the annular water tank 234 with the lime emulsion. The lime emulsion in the inner cavity of the annular water tank 234 flows to the interior of each spray pipe 235, and is finally atomized and sprayed out through the atomizing nozzle 236 to contact with the flue gas, so as to absorb and treat the sulfur dioxide in the flue gas.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A multi-tube high-efficiency desulfurization device, characterized in that: It comprises a bottom bin (1), a desulfurization section and a discharge bin (3), wherein the desulfurization section is composed of a plurality of desulfurization components (2) stacked and fixed together vertically, and the bottom desulfurization component (2) is fixed to an open opening at the top of the bottom bin (1), and the discharge bin (3) is fixedly installed at an open opening at the top of the top desulfurization component (2); The desulfurization component (2) comprises a vertical bin (21), a swirl plate (22) is fixedly installed on the lower side of the vertical bin (21), a spray component (23) is fixedly installed inside the vertical bin (21) and above the swirl plate (22), the spray component (23) comprises an annular water tank (234) rotatably installed inside the vertical bin (21), a circle of spray pipes (235) are welded to the inner wall surface of the annular water tank (234), and atomizing nozzles (236) are fixedly installed at the bottom of the horizontal pipe end of the spray pipe (235) and at one end of the spray pipe (235) away from the annular water tank (234).

2. A multi-tube high-efficiency desulfurization device according to claim 1, characterized in that: The spray assembly (23) further comprises an annular track (232) welded inside the vertical bin (21), and arc-shaped sliding blocks (233) sliding on the annular track (232) are welded around the outer wall of the annular water tank (234).

3. A multi-tube high-efficiency desulfurization device according to claim 2, characterized in that: An annular rack (237) is welded to the bottom of the annular water tank (234), a driving source (231) is fixedly mounted on the outer wall of the vertical bin (21), and a driving end of the driving source (231) is located inside the vertical bin (21) and is fixedly mounted with a driving gear (238) meshing with the annular rack (237).

4. A multi-tube high-efficiency desulfurization device according to claim 3, characterized in that: The driving source (231) comprises a mounting shaft (2315) rotatably mounted on the vertical bin (21) via a bearing, and a pad (2311) welded to the outer wall of the vertical bin (21); one end of the mounting shaft (2315) located outside the vertical bin (21) is sleeved with a spur rack (2313); a linear motor (2312) is fixedly mounted on the top of the pad (2311); and a transmission gear (2314) meshing with the spur rack (2313) is fixedly mounted on the movable end of the linear motor (2312).

5. A multi-tube high-efficiency desulfurization device according to claim 4, characterized in that: A feed connecting pipe (2310) is inserted and installed at an upper position on one side of the vertical bin (21), and a metal hose (239) is fixedly installed between the liquid outlet end of the feed connecting pipe (2310) and the liquid inlet end at the top of the annular water tank (234).

6. A multi-tube high-efficiency desulfurization device according to claim 5, characterized in that: A conical block (221) is welded at the center of the top of the swirl plate (22), and the sharp end of the conical block (221) faces upward.

7. A multi-tube high-efficiency desulfurization device according to claim 6, characterized in that: A limiting ring edge (222) is welded to the outer edge of the top of the swirl plate (22), and a slope edge is arranged on the inner side of the limiting ring edge (222).

Images