Flue gas desulfurization device for thermoelectric boiler

Abstract

The utility model relates to the technical field of flue gas desulfurization, and discloses a thermoelectric boiler flue gas desulfurization device which comprises a bottom box, a desulfurization cylinder fixedly connected to the top of the bottom box, a flue gas inlet pipe fixedly connected to the bottom of the left side of the desulfurization cylinder, an exhaust pipe fixedly connected to the top of the right side of the desulfurization cylinder, and a desulfurization mechanism arranged in the desulfurization cylinder. A dismounting mechanism is arranged on the left side of the desulfurization cylinder, the desulfurization mechanism comprises a liquid pumping assembly and a liquid dropping assembly, and the liquid pumping assembly is arranged at the top in the bottom box. According to the thermoelectric boiler flue gas desulfurization device, through the arranged desulfurization mechanism, a worker only needs to start a liquid pump, lime mixed slurry in the bottom box can be pumped out and drips downwards through a liquid dripping opening, lime mortar and flue gas are fully mixed, and desulfurization work on the flue gas is completed; and the liquid transfer ring pipe I, the liquid transfer ring pipe II and the liquid transfer ring pipe III are arranged in the desulfurization cylinder at equal intervals, so that the number of liquid dropping openings is increased, and lime mortar can uniformly drop downwards.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization, in particular to a flue gas desulfurization device for a thermal power boiler. Background Art

[0002] In the process of carrying out work in the chemical, electric power, metallurgical and other industries, a large amount of toxic flue gases such as sulfur dioxide and hydrogen sulfide are usually generated. If they are not treated, they will cause great harm to the environment and human health. Therefore, it is necessary to use a thermal power boiler flue gas desulfurization tower to desulfurize the gas before the gas is discharged, so as to reduce the sulfide content in the gas and reduce pollution to the environment.

[0003] According to the patent website published "An Improved Flue Gas Desulfurization Device for Thermal Power Boilers (Publication No.: CN 220003527U; Application No.: 202321605929.8)", the above application is aimed at: "The flue gas generated by the thermal power boiler contains a large amount of smoke dust. When the flue gas desulfurization device uses alkaline liquid to spray the flue gas, the smoke dust also dissolves in the liquid and falls to the bottom of the device. Long-term accumulation will form sludge at the bottom of the device. The existing flue gas desulfurization device does not have a sludge cleaning structure at the bottom of the device, which will affect the use of the device in the long run." The problem has been optimized. However, when the desulfurization device in the above application is used to contact and react with the flue gas to absorb sulfur The liquid of the desulfurization device cannot be directly recycled. Since the liquid set in the device needs to react with the sulfide, lime mortar is mostly used instead of clean water. The 'overflow pipe 16' and 'outlet pipe 17' set in the above desulfurization device are slightly redundant and have no obvious practical significance. On the contrary, the 'overflow pipe 16' and 'outlet pipe 17' are prone to blockage due to diameter and height problems, and are not practical. At the same time, when the desulfurization device in the above application is in use, it only desulfurizes the flue gas by contacting it with the spray pipe. When the spray ports are unevenly distributed, the remaining flue gas is directly discharged, and the desulfurization effect is not good. Utility Model Content

[0004] The utility model aims to provide a flue gas desulfurization device for a thermal power boiler to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue gas desulfurization device for a thermal power boiler, comprising a bottom box, a desulfurization cylinder is fixedly connected to the top of the bottom box, a smoke inlet pipe is fixedly connected to the bottom left side of the desulfurization cylinder, an exhaust pipe is fixedly connected to the top right side of the desulfurization cylinder, a desulfurization mechanism is arranged in the desulfurization cylinder, and a disassembly and assembly mechanism is arranged on the left side of the desulfurization cylinder.

[0006] The desulfurization mechanism comprises a liquid pumping component and a liquid dripping component. The liquid pumping component is arranged at the top of the bottom box, and the liquid dripping component is arranged in the desulfurization cylinder.

[0007] The disassembly and assembly mechanism includes a filter assembly, a locking assembly, a positioning assembly and a regulating assembly. The filter assembly is arranged in the desulfurization cylinder, the locking assembly is arranged on the left side of the filter assembly, the positioning assembly is arranged on the left side of the desulfurization cylinder, and the regulating assembly is arranged in the positioning assembly.

[0008] Preferably, the liquid pumping assembly includes a liquid pump, which is fixedly connected to the top of the bottom box located on the right side of the desulfurization cylinder, a liquid pumping tube is fixedly connected to the bottom of the liquid pump, and a liquid infusion tube is fixedly connected to the top of the liquid pump, and the liquid infusion tube is clamped in the right side of the desulfurization cylinder.

[0009] Preferably, the drip assembly includes a liquid transfer ring tube 1, the liquid transfer ring tube 1 is fixedly connected to the left side of the infusion tube, the outer ring of the liquid transfer ring tube 1 is fixedly connected to a fixed rod, the fixed rod is fixedly connected to the inner ring of the desulfurization cylinder, the inner ring of the liquid transfer ring tube 1 is fixedly connected to a connecting tube 1, the inner side of the connecting tube 1 is fixedly connected to a liquid transfer ring tube 2, the inner ring of the liquid transfer ring tube 2 is fixedly connected to a connecting tube 2, the inner side of the connecting tube 2 is fixedly connected to a liquid transfer ring tube 3, and the bottoms of the liquid transfer ring tubes 1, 2 and 3 are fixedly connected with drip ports.

[0010] Preferably, the filter assembly includes a ring frame, which is arranged on the inner ring of the desulfurization cylinder and located above the liquid transfer ring tube. The outer ring of the ring frame is in contact with the inner ring of the desulfurization cylinder. The inner ring of the ring frame is fixedly connected to a filter plate. Support rings are arranged on the upper and lower sides of the ring frame, and the support rings are fixedly connected to the inner ring of the desulfurization cylinder.

[0011] Preferably, the clamping assembly comprises a semi-arc clamping frame, which is fixedly connected to the left side of the ring frame, clamped in the left side of the desulfurization cylinder, a protruding rod is fixedly connected to the left side of the semi-arc clamping frame, and a handle is fixedly connected to the left side of the protruding rod.

[0012] Preferably, the positioning assembly includes a fixed box, which is fixedly connected to the left side of the desulfurization cylinder, a sliding cylinder is slidably connected inside the fixed box, a compression spring is fixedly connected inside the sliding cylinder, a positioning clamping rod is fixedly connected to the bottom of the sliding cylinder, a fixed sleeve is sleeved on the outer ring of the positioning clamping rod, the fixed sleeve is fixedly connected to the inner side of the handle, and the fixed sleeve is fixedly connected to the semi-arc clamp frame.

[0013] Preferably, the regulating component includes a telescopic slide rod, which is fixedly connected in the slide tube, slidably connected in the top of the fixed box, sleeved on the inner ring of the compression spring, and fixedly connected to the top of the telescopic slide rod with a paddle.

[0014] Compared with the prior art, the utility model provides a flue gas desulfurization device for thermal power boilers, which has the following beneficial effects:

[0015] 1. The flue gas desulfurization device for thermal power boiler has a desulfurization mechanism. The staff only needs to start the liquid pump to extract the lime mixed slurry in the bottom box and drip it downward through the dripping port, so that the lime mortar is fully mixed with the flue gas to complete the desulfurization of the flue gas. The first liquid transfer ring pipe, the second liquid transfer ring pipe and the third liquid transfer ring pipe are arranged at equal intervals inside the desulfurization cylinder, and the number of dripping ports is increased, so that the lime mortar can drip downward evenly, thereby improving the desulfurization efficiency. At the same time, the dripping lime mortar can directly fall into the bottom box to complete the cycle.

[0016] 2. The flue gas desulfurization device for thermal power boilers has a disassembly and assembly mechanism, and the filter plate is arranged above the liquid transfer ring tube to further filter the water vapor and remaining sulfide substances in the flue gas, thereby increasing the desulfurization effect of the device on the flue gas when in use. At the same time, the staff only needs to pull the paddle upward to release the positioning of the filter plate, so that the staff can quickly complete the replacement of the filter plate. The operation is simple and convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a schematic diagram of the left side of the utility model;

[0019] Figure 2 It is a schematic diagram of the right side of the utility model;

[0020] Figure 3 It is a side sectional view of the utility model;

[0021] Figure 4 It is a partial structural cross-sectional view of the desulfurization mechanism;

[0022] Figure 5 It is a sectional view of the disassembly and assembly mechanism.

[0023] Figure 6 It is a partial structural diagram of the disassembly and assembly mechanism.

[0024] In the figure: 1. desulfurization mechanism; 11. liquid extraction assembly; 1101. liquid pump; 1102. liquid extraction pipe; 1103. liquid infusion pipe; 12. liquid dripping assembly; 1201. liquid transfer ring pipe 1; 1202. fixing rod; 1203. connecting pipe 1; 1204. liquid transfer ring pipe 2; 1205. connecting pipe 2; 1206. liquid transfer ring pipe 3; 1207. liquid dripping port; 2. disassembly and assembly mechanism; 21. filter assembly; 2101. ring frame; 2102. Filter plate; 2103, support ring; 22, positioning assembly; 2201, semi-arc bracket; 2202, protruding rod; 2203, handle; 23, positioning assembly; 2301, fixed box; 2302, slide cylinder; 2303, compression spring; 2304, positioning clamping rod; 2305, fixed sleeve; 24, regulating assembly; 2401, telescopic slide rod; 2402, paddle; 3, bottom box; 4, desulfurization cylinder; 41, smoke inlet pipe; 42, exhaust pipe. DETAILED DESCRIPTION

[0025] 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.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides a technical solution: Embodiment 1

[0028] Combination Figures 1 to 4 A flue gas desulfurization device for a thermal power boiler includes a bottom box 3, a desulfurization cylinder 4 is fixedly connected to the top of the bottom box 3, a smoke inlet pipe 41 is fixedly connected to the bottom of the left side of the desulfurization cylinder 4, an exhaust pipe 42 is fixedly connected to the top of the right side of the desulfurization cylinder 4, a desulfurization mechanism 1 is arranged in the desulfurization cylinder 4, and a disassembly mechanism 2 is arranged on the left side of the desulfurization cylinder 4.

[0029] The desulfurization mechanism 1 comprises a liquid pumping component 11 and a liquid dripping component 12 . The liquid pumping component 11 is arranged at the top of the bottom box 3 , and the liquid dripping component 12 is arranged in the desulfurization cylinder 4 .

[0030] The liquid pumping assembly 11 includes a liquid pump 1101, which is fixedly connected to the top of the bottom box 3 and located on the right side of the desulfurization cylinder 4. The bottom of the liquid pump 1101 is fixedly connected to a liquid pumping pipe 1102, and the top of the liquid pump 1101 is fixedly connected to a liquid infusion pipe 1103, which is clamped in the right side of the desulfurization cylinder 4. The dripping assembly 12 includes a liquid transfer ring tube 1201, which is fixedly connected to the left side of the liquid infusion pipe 1103, and the outer ring of the liquid transfer ring tube 1201 is fixedly connected to a fixed rod 12 02, the fixed rod 1202 is fixedly connected to the inner circle of the desulfurization cylinder 4, the inner circle of the liquid transfer ring tube 1201 is fixedly connected with a connecting tube 1203, the inner side of the connecting tube 1203 is fixedly connected with a liquid transfer ring tube 2 1204, the inner circle of the liquid transfer ring tube 2 1204 is fixedly connected with a connecting tube 2 1205, the inner side of the connecting tube 2 1205 is fixedly connected with a liquid transfer ring tube 3 1206, and the bottoms of the liquid transfer ring tubes 1201, 1204 and 1206 are fixedly connected with a drip port 1207.

[0031] Furthermore: the staff only needs to start the liquid pump 1101 to draw out the lime mixed slurry in the bottom box 3 and drip it downward through the dripping port 1207, so that the lime mortar and the flue gas are fully mixed to complete the desulfurization of the flue gas, and the liquid transfer ring pipe 1 1201, the liquid transfer ring pipe 2 1204 and the liquid transfer ring pipe 3 1206 are arranged at equal intervals inside the desulfurization cylinder 4, and the number of dripping ports 1207 is increased, so that the lime mortar can drip downward evenly, thereby improving the desulfurization efficiency. At the same time, the dripping lime mortar can directly fall into the bottom box 3 to complete the cycle. Embodiment 2

[0032] See also Figures 1 to 3 and Figure 5 and Figure 6 On the basis of Example 1, it is further obtained that the disassembly and assembly mechanism 2 includes a filter component 21, a positioning component 22, a positioning component 23 and a regulating component 24, the filter component 21 is arranged in the desulfurization cylinder 4, the positioning component 22 is arranged on the left side of the filter component 21, the positioning component 23 is arranged on the left side of the desulfurization cylinder 4, and the regulating component 24 is arranged in the positioning component 23.

[0033] The filter assembly 21 includes a ring frame 2101, which is arranged on the inner ring of the desulfurization cylinder 4 and located above the liquid transfer ring tube 1201. The outer ring of the ring frame 2101 fits the inner ring of the desulfurization cylinder 4. The inner ring of the ring frame 2101 is fixedly connected with a filter plate 2102. The upper and lower sides of the ring frame 2101 are provided with support rings 2103, and the support ring 2103 is fixedly connected to the inner ring of the desulfurization cylinder 4. The clamping assembly 22 includes a semi-arc clamping frame 2201, which is fixedly connected to the left side of the ring frame 2101, and the semi-arc clamping frame 2201 is clamped in the left side of the desulfurization cylinder 4. The left side of the semi-arc clamping frame 2201 is fixedly connected with a protruding rod 2202, and the left side of the protruding rod 2202 is fixedly connected with a handle 2203. The positioning assembly 23 includes a fixed box 2301, and the fixed box 2301 It is fixedly connected to the left side of the desulfurization cylinder 4, and a slide cylinder 2302 is slidably connected in the fixed box 2301, and a compression spring 2303 is fixedly connected in the slide cylinder 2302. A positioning rod 2304 is fixedly connected to the bottom of the slide cylinder 2302, and a fixed sleeve 2305 is sleeved on the outer ring of the positioning rod 2304. The fixed sleeve 2305 is fixedly connected to the inner side of the handle 2203, and the fixed sleeve 2305 is fixedly connected to the semi-arc bracket 2201. The regulating component 24 includes a telescopic slide rod 2401, which is fixedly connected in the slide cylinder 2302, and the telescopic slide rod 2401 is slidably connected in the top of the fixed box 2301. The telescopic slide rod 2401 is sleeved on the inner ring of the compression spring 2303, and a paddle 2402 is fixedly connected to the top of the telescopic slide rod 2401.

[0034] Furthermore: the filter plate 2102 is arranged above the liquid transfer ring tube 1201 to further filter the water vapor and remaining sulfide substances in the flue gas, thereby increasing the desulfurization effect of the device on the flue gas when in use. At the same time, the staff only needs to pull the paddle 2402 upward to release the positioning of the filter plate 2102, so that the staff can quickly complete the replacement of the filter plate 2102. The operation is simple and convenient for the staff to use.

[0035] In actual operation, when the device is used, the staff starts the liquid pump 1101, and the liquid pump 1101 starts to extract the lime mortar in the bottom box 3 through the liquid extraction pipe 1102 and enters the liquid transfer ring pipe 1 1201 through the liquid infusion pipe 1103. The lime mortar in the liquid transfer ring pipe 1 1201 enters the liquid transfer ring pipe 2 1204 through the connecting pipe 1203, and the lime mortar in the liquid transfer ring pipe 2 1204 enters the connecting pipe 1203. The second liquid transfer ring pipe 1205 enters the third liquid transfer ring pipe 1206, and then the lime sand in the first liquid transfer ring pipe 1201, the second liquid transfer ring pipe 1204 and the third liquid transfer ring pipe 1206 drips downward through the dripping port 1207, contacts with the rising flue gas in the desulfurization cylinder 4 to adsorb the sulfide in the flue gas, and then the flue gas continues to pass through a plurality of filter plates 2102 upward to filter the water vapor and sulfide in the flue gas, and finally the filtered flue gas is discharged through the exhaust pipe 42.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A flue gas desulfurization device for a thermal power boiler, comprising a bottom box (3), characterized in that: The top of the bottom box (3) is fixedly connected to a desulfurization cylinder (4); the bottom of the left side of the desulfurization cylinder (4) is fixedly connected to a smoke inlet pipe (41); the top of the right side of the desulfurization cylinder (4) is fixedly connected to an exhaust pipe (42); a desulfurization mechanism (1) is provided in the desulfurization cylinder (4); and a disassembly mechanism (2) is provided on the left side of the desulfurization cylinder (4); The desulfurization mechanism (1) comprises a liquid pumping component (11) and a liquid dripping component (12); the liquid pumping component (11) is arranged at the top of the bottom box (3), and the liquid dripping component (12) is arranged in the desulfurization cylinder (4); The disassembly and assembly mechanism (2) comprises a filter assembly (21), a positioning assembly (22), a positioning assembly (23) and a regulating assembly (24); the filter assembly (21) is arranged in the desulfurization cylinder (4); the positioning assembly (22) is arranged on the left side of the filter assembly (21); the positioning assembly (23) is arranged on the left side of the desulfurization cylinder (4); and the regulating assembly (24) is arranged in the positioning assembly (23).

2. A flue gas desulfurization device for thermal power boiler according to claim 1, characterized in that: The liquid pumping assembly (11) comprises a liquid pump (1101), the liquid pump (1101) being fixedly connected to the top of the bottom box (3) and located on the right side of the desulfurization cylinder (4), the bottom of the liquid pump (1101) being fixedly connected to a liquid pumping tube (1102), the top of the liquid pump (1101) being fixedly connected to a liquid infusion tube (1103), the liquid infusion tube (1103) being clamped into the right side of the desulfurization cylinder (4).

3. A flue gas desulfurization device for thermal power boiler according to claim 1, characterized in that: The liquid dripping assembly (12) comprises a liquid transfer ring tube 1 (1201), wherein the liquid transfer ring tube 1 (1201) is fixedly connected to the left side of the liquid infusion tube (1103), the outer ring of the liquid transfer ring tube 1 (1201) is fixedly connected to a fixing rod (1202), the fixing rod (1202) is fixedly connected to the inner ring of the desulfurization cylinder (4), the inner ring of the liquid transfer ring tube 1 (1201) is fixedly connected to a connecting tube 1 (1203), the inner side of the connecting tube 1 (1203) is fixedly connected to a liquid transfer ring tube 2 (1204), the inner ring of the liquid transfer ring tube 2 (1204) is fixedly connected to a connecting tube 2 (1205), the inner side of the connecting tube 2 (1205) is fixedly connected to a liquid transfer ring tube 3 (1206), and the bottoms of the liquid transfer ring tube 1 (1201), the liquid transfer ring tube 2 (1204) and the liquid transfer ring tube 3 (1206) are fixedly connected to a liquid dripping port (1207).

4. A flue gas desulfurization device for thermal power boiler according to claim 1, characterized in that: The filter assembly (21) comprises a ring frame (2101), the ring frame (2101) being arranged on the inner ring of the desulfurization cylinder (4) and located above the liquid transfer ring tube 1 (1201), the outer ring of the ring frame (2101) being in contact with the inner ring of the desulfurization cylinder (4), the inner ring of the ring frame (2101) being fixedly connected to a filter plate (2102), and support rings (2103) being arranged on the upper and lower sides of the ring frame (2101), the support rings (2103) being fixedly connected to the inner ring of the desulfurization cylinder (4).

5. A flue gas desulfurization device for thermal power boiler according to claim 1, characterized in that: The clamping assembly (22) comprises a semi-arc clamping frame (2201), the semi-arc clamping frame (2201) being fixedly connected to the left side of the ring frame (2101), the semi-arc clamping frame (2201) being clamped into the left side of the desulfurization cylinder (4), the semi-arc clamping frame (2201) being fixedly connected to a protruding rod (2202) on the left side, and the protruding rod (2202) being fixedly connected to a handle (2203) on the left side.

6. A flue gas desulfurization device for thermal power boiler according to claim 1, characterized in that: The positioning assembly (23) comprises a fixed box (2301), the fixed box (2301) is fixedly connected to the left side of the desulfurization cylinder (4), a slide cylinder (2302) is slidably connected inside the fixed box (2301), a compression spring (2303) is fixedly connected inside the slide cylinder (2302), a positioning clamping rod (2304) is fixedly connected to the bottom of the slide cylinder (2302), a fixed sleeve (2305) is sleeved on the outer ring of the positioning clamping rod (2304), the fixed sleeve (2305) is fixedly connected to the inner side of the handle (2203), and the fixed sleeve (2305) is fixedly connected to the semi-arc clamping frame (2201).

7. A flue gas desulfurization device for thermal power boiler according to claim 1, characterized in that: The regulating component (24) comprises a telescopic slide rod (2401), wherein the telescopic slide rod (2401) is fixedly connected to the inside of the slide tube (2302), wherein the telescopic slide rod (2401) is slidably connected to the top of the fixed box (2301), wherein the telescopic slide rod (2401) is sleeved on the inner ring of the compression spring (2303), and a paddle (2402) is fixedly connected to the top of the telescopic slide rod (2401).

Images