Automatic slurry supply adjusting system for wet desulphurization

Abstract

The utility model discloses a wet desulphurization slurry supply automatic adjusting system which comprises a desulfurizing tower, a flue gas outlet is formed in the upper portion of the desulfurizing tower, a flue gas inlet is formed in the lower portion of the desulfurizing tower, a slurry spraying structure is arranged in the desulfurizing tower and connected to a slurry supply structure outside the desulfurizing tower, and the slurry spraying structure comprises a spraying pipe. The slurry supply structure comprises a slurry supply pool, the slurry supply pool is connected to the spraying pipe through a connecting pipeline, an adjusting pipeline is further arranged beside the connecting pipeline, a plurality of branch pipes are further evenly distributed on the adjusting pipeline at intervals, and the branch pipes are also communicated with the connecting pipeline. According to the flue gas desulfurization device, flue gas subjected to spray desulfurization is detected, and spray is supplemented or the slurry supply concentration is adjusted according to a detection structure, so that resources are saved on the basis of ensuring the flue gas desulfurization effect; on the other hand, due to the existence of a plurality of branch pipes during slurry concentration mixing, a better mixing effect is ensured, so that a uniform desulfurization effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization processing equipment, in particular to an automatic regulating system for wet desulfurization slurry supply. Background Art

[0002] The existing utility model patent with application number 202123154954.2 discloses a new type of desulfurizer slurry supply system, which realizes spraying regulation and energy saving by adding an industrial water regulating structure. However, the industrial water and slurry are mixed only at the connection between the two, and then the spray pipe is used to spray the flue gas for desulfurization. There is uneven mixing, and then there is a problem of uneven desulfurization of the sprayed flue gas. Utility Model Content

[0003] The utility model aims to provide an automatic adjustment system for wet desulfurization slurry supply which can realize automatic energy-saving adjustment of slurry supply while ensuring stable desulfurization in view of the deficiencies in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides a wet desulfurization slurry supply automatic adjustment system, which adopts the following technical solutions:

[0005] A wet desulfurization slurry supply automatic adjustment system comprises a desulfurization tower, wherein a flue gas outlet is provided at the upper portion of the desulfurization tower, and a flue gas inlet is provided at the lower portion of the desulfurization tower. A slurry spraying structure is provided in the desulfurization tower, and the slurry spraying structure is connected to the slurry supply structure outside the desulfurization tower. The slurry spraying structure comprises a spraying pipe, and a monitor for detecting the sulfur content of the flue gas is provided above the spraying pipe. The slurry supply structure comprises a slurry supply pool, and the slurry supply pool is connected to the spraying pipe through a connecting pipe. A regulating pipe is also provided beside the connecting pipe, and one end of the regulating pipe is connected to industrial water, and the other end is connected to the connecting pipe. A plurality of branch pipes are evenly spaced on the regulating pipe, and the branch pipes are also connected to the connecting pipe.

[0006] A further improvement of the automatic adjustment system for wet desulfurization slurry supply of the utility model is that a supplementary spray pipe is provided above the monitor, and a return pipe is also provided on the connecting pipe. The return pipe is connected to the slurry supply pool, and the middle part of the return pipe is connected to the supplementary spray pipe.

[0007] A further improvement of the wet desulfurization slurry supply automatic adjustment system of the utility model is that the lower end of the desulfurization tower is also connected to a recovery slurry pool, and the recovery slurry is connected to the connecting pipe through a circulation pipe.

[0008] A further improvement of the wet desulfurization slurry supply automatic adjustment system of the utility model is that a plurality of second branch pipes are evenly spaced on the circulation pipeline, and the second branch pipes are connected to the connecting pipeline.

[0009] A further improvement of the automatic regulating system for wet desulfurization slurry supply of the utility model is that the connection points of the plurality of branch pipes, the plurality of second branch pipes and the connecting pipeline are staggered.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model detects the flue gas after spray desulfurization, and performs supplementary spraying or adjusts the slurry concentration according to the detection structure, thereby saving resources on the basis of ensuring the flue gas desulfurization effect; on the other hand, due to the presence of multiple branch pipes when the slurry concentration is mixed, a better mixing effect is guaranteed, thereby ensuring a uniform desulfurization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] In the figure: 1 desulfurization tower, 2 flue gas outlet, 3 flue gas inlet, 4 spray pipe, 5 monitor, 6 supplementary spray pipe, 7 slurry supply pool, 8 connecting pipe, 9 regulating pipe, 10 branch pipe, 11 slurry recovery pool, 12 circulation pipe, 13 second branch pipe, 14 reflux pipe. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] like Figure 1 As shown, a wet flue gas desulfurization slurry supply automatic adjustment system includes a desulfurization tower 1, a flue gas outlet 2 is provided at the upper part of the desulfurization tower, a flue gas inlet 3 is provided at the lower part, a slurry spraying structure is provided in the desulfurization tower, the slurry spraying structure is connected to the slurry supply structure outside the desulfurization tower, the slurry spraying structure includes a spraying pipe 4, a monitor 5 for detecting the sulfur content of flue gas is provided above the spraying pipe, the slurry supply structure includes a slurry supply pool 7, the slurry supply pool is connected to the spraying pipe through a connecting pipe 8, and a regulating pipe 9 is also provided beside the connecting pipe, one end of the regulating pipe is connected to industrial water, and the other end is connected to the connecting pipe, and a plurality of branch pipes 10 are evenly spaced on the regulating pipe, and the branch pipes are also connected to the connecting pipe. Valves can be provided on the regulating pipe, the branch pipe, and the connecting pipe.

[0016] Furthermore, a supplementary spray pipe 6 is provided above the monitor, and a return pipe 14 is provided on the connecting pipe, the return pipe is connected to the slurry supply tank, and the middle of the return pipe is connected to the supplementary spray pipe to perform supplementary spraying to ensure the desulfurization effect.

[0017] Furthermore, the lower end of the desulfurization tower is also connected to the slurry recovery pool 11, and the recovered slurry is connected to the connecting pipe through the circulation pipe 12. The slurry after spraying is recycled and utilized, and the slurry supply is also regulated, which is beneficial to regulating the slurry supply.

[0018] A plurality of second branch pipes 13 are evenly arranged on the circulation pipe, and the second branch pipes are connected to the connecting pipe. The connection points of the plurality of branch pipes, the plurality of second branch pipes and the connecting pipe are staggered.

[0019] The working principle of the utility model is as follows: the slurry supply pool cooperates with industrial water to spray desulfurization on the flue gas, and the sulfur content of the flue gas after spraying is detected by a monitor. If the sulfur content is too high, the flow of industrial water is reduced, and at the same time, supplementary spray desulfurization is carried out; at the same time, the slurry after spraying is collected in a slurry recovery pool, and then mixed with the slurry in the connecting pipe through a circulation pipe to realize slurry supply; on the whole, according to the detection structure, the industrial water supply is adjusted to realize energy-saving regulation of slurry supply; the adjustment function can also be realized through industrial automatic control of an existing controller.

[0020] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A wet desulfurization slurry supply automatic adjustment system, comprising a desulfurization tower, a flue gas outlet is provided at the top of the desulfurization tower, a flue gas inlet is provided at the bottom, a slurry spraying structure is provided in the desulfurization tower, and the slurry spraying structure is connected to the slurry supply structure outside the desulfurization tower, characterized in that: The slurry spraying structure includes a spraying pipe, above which a monitor for detecting the sulfur content of flue gas is provided. The slurry supply structure includes a slurry supply pool, which is connected to the spraying pipe via a connecting pipe. A regulating pipe is also provided next to the connecting pipe, one end of the regulating pipe is connected to industrial water, and the other end is connected to the connecting pipe. A plurality of branch pipes are evenly spaced on the regulating pipe, and the branch pipes are also connected to the connecting pipe.

2. The automatic adjustment system for wet desulfurization slurry supply according to claim 1, characterized in that: A supplementary spray pipe is arranged above the monitor, and a return pipe is also arranged on the connecting pipe. The return pipe is connected to the slurry supply pool, and the middle part of the return pipe is connected to the supplementary spray pipe.

3. The automatic adjustment system for wet desulfurization slurry supply according to claim 2 is characterized in that: The lower end of the desulfurization tower is also connected to a recovery slurry pool, and the recovery slurry is connected to a connecting pipe through a circulation pipe.

4. The automatic adjustment system for wet desulfurization slurry supply according to claim 3 is characterized in that: A plurality of second branch pipes are evenly spaced on the circulation pipe, and the second branch pipes are connected to the connecting pipe.

5. The automatic adjustment system for wet desulfurization slurry supply according to claim 4, characterized in that: The connection points of the plurality of branch pipes, the plurality of second branch pipes and the connecting pipe are staggered.

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