Efficient desulfurizing tower

Abstract

The utility model relates to the technical field of desulfurizing towers, in particular to an efficient desulfurizing tower which comprises a tower body, a spraying device arranged in the tower body and a front flue desulfurizing mechanism communicated with the side end of the tower body. The front flue desulfurization mechanism comprises a front flue communicated with the side end of the tower body, a flue spraying device arranged in the front flue and a rapping device fixedly arranged on the side wall of the tower body, the working end of the rapping device abuts against the outer wall of the front flue, and a scale block collecting box is arranged at the lower end of the front flue. According to the utility model, the front flue desulfurization mechanism is arranged in front of the desulfurization tower, and preliminary desulfurization of gas is realized through the front flue desulfurization mechanism, so that the number of tower body circulating pumps and the height of the tower body can be reduced under the same desulfurization efficiency of equipment, thereby reducing the cost of a desulfurization system.

Description

Technical Field

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

[0002] The limestone-gypsum method is the most widely used desulfurization technology in the field of industrial flue gas desulfurization. It mixes limestone powder with water to form a limestone slurry, adds the limestone slurry to the bottom of the desulfurization tower, and then uses a pump to lift the slurry to the top of the desulfurization tower and spray it into the flue gas. The calcium carbonate dissolved in the water reacts with the sulfur dioxide gas in the flue gas to produce calcium sulfite, which reacts with oxygen to form gypsum, which can be used as a building material.

[0003] In order to increase the contact area between the limestone slurry and the flue gas, a general desulfurization tower is equipped with one or more desulfurization tower circulation pumps at the bottom of the tower to lift the limestone slurry and spray it into the flue gas above the desulfurization tower. Within a certain range, the more desulfurization tower circulation pumps there are, the higher the desulfurization efficiency is. However, the height of the desulfurization tower also increases, which leads to high costs for the desulfurization tower and its foundation. Utility Model Content

[0004] The utility model provides a high-efficiency desulfurization tower to solve the problems of the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a high-efficiency desulfurization tower, comprising: a tower body, a spraying device arranged in the tower body, and a front flue desulfurization mechanism connected with the side end of the tower body, slurry is arranged in the tower body, the front flue desulfurization mechanism comprises a front flue connected with the side end of the tower body, a flue spraying device arranged in the front flue, and a rapping device fixedly arranged on the side wall of the tower body, the working end of the rapping device is against the outer wall of the front flue, and a scale collection box is provided at the lower end of the front flue.

[0006] As a further improvement, the rapping device includes a mounting rod fixedly arranged on the outer wall of the tower body, a support bearing seat fixedly arranged at the end of the mounting rod, a transmission system rotatably arranged in the support bearing seat, a striking hammer handle fixedly arranged on the transmission system, and a striking hammer head fixedly arranged at the end of the striking hammer handle.

[0007] As a further improvement, the side wall of the front flue is provided with an anvil head, and the anvil head is provided correspondingly to the striking hammer head.

[0008] As a further improvement, the spraying device includes a tower spraying pipe communicating with the tower body, a tower spraying pump arranged on the tower spraying pipe, and a tower spraying nozzle arranged in the tower body, and the tower spraying nozzle is connected to the tower spraying pipe.

[0009] As a further improvement, the spraying device is provided with two groups.

[0010] As a further improvement, the flue spray device includes a front flue spray pipe that is connected to the bottom end of the tower body, a front flue spray pump arranged on the front flue spray pipe, and a front flue spray nozzle arranged in the front flue, and the front flue spray nozzle is connected to the flue spray pipe.

[0011] As a further improvement, slurry is provided in the scale collection box.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. During actual use of the present invention, when sulfur-containing gas enters the front flue, the flue spraying device located in the front flue sprays limestone slurry. The sprayed limestone slurry contacts the flue gas in the reverse direction. Due to the high wind speed in the front flue, the sprayed limestone slurry and the flue gas from the front flue collide strongly. Therefore, the mass transfer effect between the two is very strong, which is better than the mass transfer effect in the tower body. Therefore, a good desulfurization effect is achieved. Under the same desulfurization efficiency, the number of tower circulation pumps can be reduced, the tower height can be reduced, and thus the cost of the desulfurization system can be reduced.

[0014] 2. The utility model provides a rapping device on the front flue. If there is scaling in the front flue, the rapping system can be turned on to rappel the scale blocks off. A scale block collection box is provided at the bottom of the front flue. When the scale blocks are rapped off, they fall into the scale block collection box. The top plate of the scale block collection box can be opened to clean the scale blocks in the scale block collection box. The structure is simple and can avoid scaling and clogging of the front flue, thereby affecting the desulfurization effect.

[0015] 3. The scale collection box of the utility model contains slurry of a certain depth. The slurry maintains a certain depth, which can play a water seal role and ensure that the treated waste gas does not overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the spray device of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the flue spray device of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the rapping device of the utility model.

[0020] In the figure, 1. tower body; 2. spraying device; 21. tower body spray pipe; 22. tower body spray pump; 23. tower body spray nozzle; 3. front flue desulfurization mechanism; 31. front flue; 311. scale collection box; 312. anvil head; 32. flue spraying device; 321. front flue spray pipe; 322. front flue spray pump; 323. front flue spray nozzle; 33. rapping device; 331. mounting rod; 332. support bearing seat; 333. transmission system; 334. percussion hammer handle; 335. percussion hammer head. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0023] Below with reference to the embodiment and the attached Figures 1 to 4 , the technical solution of the utility model is further elaborated.

[0024] Example 1

[0025] A high-efficiency desulfurization tower comprises: a tower body 1, a spraying device 2 arranged in the tower body, and a front flue desulfurization mechanism 3 that is connected to the side end of the tower body 1. Slurry is arranged in the tower body 1. The front flue desulfurization mechanism 3 comprises a front flue 31 that is connected to the side end of the tower body 1, a flue spraying device 32 arranged in the front flue 31, and a rapping device 33 fixedly arranged on the side wall of the tower body 1. The working end of the rapping device 33 is against the outer wall of the front flue 31, and a scale collection box 311 is provided at the lower end of the front flue 31.

[0026] Specifically, such as Figures 1 to 4As shown, the front flue 31 of the present invention is installed vertically, and its bottom is connected with the lower part of the tower body 1. The connecting section of the front flue 31 and the tower body 1 is arranged at an angle of about 10° to the ground plane, providing a channel for the flue gas to be treated to enter the tower body 1 from the front flue 31. The scale collection box 311 is installed at the intersection of the vertical section and the connecting section of the front flue 2. The upper opening of the scale collection box 311 is connected with the front flue 2, providing a channel for scale to fall. Spraying devices are provided in both the tower body 1 and the front flue 31. The rapping device 33 is provided on the side wall of the tower body 1, and its working end is against the outer wall of the front flue 31.

[0027] During actual use, when the sulfur-containing gas enters the front flue 31, the flue spraying device 32 located in the front flue 31 sprays limestone slurry, and the sprayed limestone slurry contacts the flue gas in the reverse direction. Since the wind speed in the front flue is relatively high, the sprayed limestone slurry and the flue gas in the front flue collide strongly. Therefore, the mass transfer effect between the two is very strong, which is better than the mass transfer effect in the tower body, thereby achieving a good desulfurization effect. Under the same desulfurization efficiency, the number of tower circulation pumps can be reduced, the tower height can be reduced, and thus the cost of the desulfurization system can be reduced.

[0028] The spray device 2 provided in the tower body 1 can perform secondary desulfurization on the gas after the primary desulfurization.

[0029] At the same time, a rapping device 33 is provided on the front flue 31. If there is scaling in the front flue 31, the rapping system can be turned on to rappel the scale blocks off. A scale block collecting box 311 is provided at the bottom of the front flue 31. When the scale blocks are rapped off, they fall into the scale block collecting box 311. The top plate of the scale block collecting box 311 can be opened to clean the scale blocks in the scale block collecting box. The structure is simple, which can avoid scaling and clogging of the front flue 31, thereby affecting the desulfurization effect.

[0030] As a further preferred embodiment, the rapping device 33 includes a mounting rod 331 fixedly arranged on the outer wall of the tower body 1, a support bearing seat 332 fixedly arranged at the end of the mounting rod 331, a transmission system 333 rotatably arranged in the support bearing seat 332, a striking hammer handle 334 fixedly arranged on the transmission system 333, and a striking hammer head 335 fixedly arranged at the end of the striking hammer handle 334.

[0031] Specifically, during actual use, when scaling is detected on the inner wall of the front flue 31, the transmission system 333 is started, and the striking hammer 335 is driven by the transmission system 333 to strike the outer wall of the front flue 31, so that the scale on the inner wall of the front flue 31 is shaken off, thereby avoiding scaling and blocking of the front flue 31, which in turn affects the desulfurization effect.

[0032] As a further preferred embodiment, the side wall of the front flue 31 is provided with an anvil head 312, and the anvil head 312 is arranged corresponding to the striking hammer head 335. The anvil head 312 is used to buffer the side wall of the front flue 31, thereby preventing the striking hammer head 335 from striking for a long time and causing damage to the outer wall of the front flue 31.

[0033] As a further preferred embodiment, the spraying device 2 includes a tower body spray pipe 21 that is connected to the tower body 1, a tower body spray pump 22 arranged on the tower body spray pipe 21, and a tower body spray nozzle 23 arranged in the tower body 1, and the tower body spray nozzle 23 is connected to the tower body spray pipe 21.

[0034] As a further preferred embodiment, the spraying device 2 is provided with two groups.

[0035] As a further preferred embodiment, the flue spray device 32 includes a front flue spray pipe 321 that is connected to the bottom end of the tower body 1, a front flue spray pump 322 arranged on the front flue spray pipe 321, and a front flue spray nozzle 323 arranged in the front flue 31, and the front flue spray nozzle 323 is connected to the flue spray pipe 321.

[0036] As a further preferred embodiment, slurry is provided in the scale collection box 311 .

[0037] Specifically, the scale collection box 311 contains slurry of a certain depth. The slurry maintains a certain depth, which can play a water seal role and ensure that the treated waste gas does not overflow.

[0038] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A high-efficiency desulfurization tower, characterized in that: include: A tower body (1), a spray device (2) arranged in the tower body, and a front flue desulfurization mechanism (3) interpenetrating with the side end of the tower body (1); slurry is arranged in the tower body (1); the front flue desulfurization mechanism (3) comprises a front flue (31) interpenetrating with the side end of the tower body (1); a flue spray device (32) arranged in the front flue (31); and a rapping device (33) fixedly arranged on the side wall of the tower body (1); the working end of the rapping device (33) abuts against the outer wall of the front flue (31); and a scale collection box (311) is provided at the lower end of the front flue (31).

2. A high-efficiency desulfurization tower according to claim 1, characterized in that: The rapping device (33) comprises a mounting rod (331) fixedly arranged on the outer wall of the tower body (1), a support bearing seat (332) fixedly arranged at the end of the mounting rod (331), a transmission system (333) rotatably arranged in the support bearing seat (332), a striking hammer handle (334) fixedly arranged on the transmission system (333), and a striking hammer head (335) fixedly arranged at the end of the striking hammer handle (334).

3. A high-efficiency desulfurization tower according to claim 2, characterized in that: The side wall of the front flue (31) is provided with an anvil head (312), and the anvil head (312) is correspondingly arranged with the striking hammer head (335).

4. A high-efficiency desulfurization tower according to claim 1, characterized in that: The spraying device (2) comprises a tower spraying pipe (21) interpenetrating with the tower body (1), a tower spraying pump (22) arranged on the tower spraying pipe (21), and a tower spraying nozzle (23) arranged in the tower body (1); the tower spraying nozzle (23) is connected to the tower spraying pipe (21).

5. A high-efficiency desulfurization tower according to claim 1 or 4, characterized in that: The spraying device (2) is provided with two groups.

6. A high-efficiency desulfurization tower according to claim 1, characterized in that: The flue spray device (32) comprises a front flue spray pipe (321) intersecting the bottom end of the tower body (1), a front flue spray pump (322) arranged on the front flue spray pipe (321), and a front flue spray nozzle (323) arranged in the front flue (31), wherein the front flue spray nozzle (323) is connected to the flue spray pipe (321).

7. The high-efficiency desulfurization tower according to claim 1, characterized in that: Slurry is provided in the scale collection box (311).

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