Demister of flue gas desulfurization system

Abstract

The utility model relates to the technical field of flue gas treatment demisting, in particular to a demister of a flue gas desulfurization system, which comprises a demisting main body, the demisting main body comprises a drying tank, a condensation area is fixedly arranged at the upper part of the drying tank, an exhaust area is assembled at the top of the condensation area, and a partition plate cover is assembled at the joint of the condensation area and the drying tank. And a ventilation chimney is integrally arranged on the upper portion of the partition plate cover, a condensation cover is arranged above the ventilation chimney in a covering mode, the condensation cover is assembled above the inner wall of the condensation area, a flue gas inlet pipe is assembled on the left side edge of the drying tank in an inserted mode, the drying tank is filled with a drying reagent, and the drying reagent submerges the lower portion of the flue gas inlet pipe. According to the utility model, dual demisting and impurity removal treatment can be conveniently carried out on the flue gas, namely, the flue gas is firstly dried, condensed, demisted, dehumidified and then discharged, so that the demisting effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment and demisting, in particular to a demister for a flue gas desulfurization system. Background Technique

[0002] During industrial production, flue gas will be generated. When the flue gas is discharged after desulfurization, it will entrain droplets, fly ash particles, heavy metals enriched in the particles, etc. In order to reduce equipment corrosion and pollutant emissions and ensure the safe and stable operation of the wet flue gas desulfurization system, a demister needs to be installed at the outlet of the flue gas desulfurization system to ensure emission safety;

[0003] In this regard, Chinese Patent Application No.: CN201921536608.0 discloses an integrated flue gas condensation and demisting device, including a flue gas condenser, a flue gas demister and a flushing water system. The flue gas condenser and the flue gas demister are set as an integrated structure, and the flushing water system flushes the flue gas condenser and the flue gas demister as a whole; the flue gas condenser, the flue gas demister and the flushing water system constitute a condensation and demisting unit, and the integrated flue gas condensation and demisting device is composed of at least one condensation and demisting unit. Multiple condensation and demisting units are arranged side by side in the vertical direction of the flue gas flow direction, so that the flue gas is discharged after passing through the heat exchange in the flue gas condensation area and the demisting in the flue gas demister area in sequence;

[0004] However, the existing demisting device is inconvenient for double demisting and impurity removal treatment of flue gas, that is, it is inconvenient to dry the flue gas first and then condense, demist and dehumidify it before discharging, which affects the demisting and impurity removal efficiency;

[0005] Therefore, in order to solve the above problems, a demister for a flue gas desulfurization system is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a demister for a flue gas desulfurization system to solve the problem that the existing demisting device in the above background technique is inconvenient for double demisting and impurity removal treatment of flue gas, that is, it is inconvenient to dry the flue gas first and then condense, demist and dehumidify it before discharging, which affects the demisting and impurity removal efficiency.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A demister for a flue gas desulfurization system, including a demisting main body, the demisting main body consists of a drying tank, a condensation area is fixedly arranged on the upper part of the drying tank, an exhaust area is assembled on the top of the condensation area, a partition cover is assembled at the docking place between the condensation area and the drying tank, a ventilation chimney is integrally arranged on the upper part of the partition cover, a condensation cover is arranged above the ventilation chimney, the condensation cover is assembled on the upper part of the inner wall of the condensation area, a flue gas inlet pipe is inserted and assembled on the left side of the drying tank, and a drying reagent is filled in the drying tank, and the drying reagent submerges the lower part of the flue gas inlet pipe.

[0008] Preferably, a surge pipe rack is integrally provided at the lower part of the flue gas inlet pipe, and the surge pipe rack is distributed in a cross shape. A check valve is assembled on the upper part of the flue gas inlet pipe. The flue gas inlet pipe and the left side wall of the drying tank are assembled and sealed through a sealing flange, and the upper part of the flue gas inlet pipe is supported by a support sleeve on the outer wall of the left side of the demisting main body.

[0009] Preferably, the condensation cover is arranged in a conical shape, and a condensation component is fitted and assembled above the top of the condensation cover. The condensation component is connected to a junction box through a wire, and the junction box is assembled on the side of the top of the exhaust area. Leak holes are provided inside the condensation cover.

[0010] Preferably, the ventilation chimney is in a cylindrical shape, and ventilation holes are provided around the upper part of the ventilation chimney. A guiding top cover is covered and assembled on the top of the ventilation chimney, and the top of the guiding top cover is in an arc shape.

[0011] Preferably, the exhaust area is in a conical shape, and an exhaust pipe is integrally provided at the top of the exhaust area. A docking screw head is integrally provided on the side of the exhaust pipe, and an auxiliary nut is threadedly sleeved on the outer end of the docking screw head.

[0012] Preferably, the partition cover is provided with an arc-shaped protrusion, and a liquid discharge seat is arranged on the side of the partition cover. The liquid discharge seat is fixedly assembled at the lower part of the right side wall of the condensation area, and the inside of the liquid discharge seat is communicated with the inside of the condensation area. A plug cap is threadedly sleeved on the outer end of the liquid discharge seat.

[0013] Preferably, the drying tank is supported by a support frame at the bottom, and the bottom of the drying tank is arranged in an arc-shaped depression. A liquid discharge valve is assembled at the bottom of the drying tank, and a pipe with an opening in the opposite direction to the turning handle of the liquid discharge valve is assembled below the liquid discharge valve.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is convenient for double demisting and impurity removal treatment of flue gas, that is, it is convenient to dry the flue gas first and then condense, demist and dehumidify it before discharging, so that the demisting effect is better;

[0015] 1. Through the settings of the drying tank, the condensation area and the exhaust area in the present utility model, the flue gas is convenient to first rush into the inside of the drying tank, and then pass through the condensation area and be discharged through the exhaust area. During operation, due to the continuously incoming gas, a gas pressure is formed inside it, which is convenient to push the gas continuously upward until it is discharged, making the operation and use more convenient. At the same time, through the drying reagent, it is also convenient to dry the gas first, and the corresponding drying reagent can be selected according to the different acid-base properties of the flue gas. Through this design, the convenience and practicality of the demister of the flue gas desulfurization system are improved.

[0016] 2. With the cooperation of the partition cover, ventilation chimney and condensation cover in the present utility model, it is convenient to assist the exhausted dry flue gas, making the use more convenient. At the same time, it is also convenient to condense the gas to remove fog and moisture again, making the operation and use more convenient. Through this design, the convenience and practicability of the demister in the flue gas desulfurization system are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0018] Figure 2 It is a top view sectional structure schematic diagram of the present utility model;

[0019] Figure 3 It is a top view partial structure schematic diagram of the condensation cover of the present utility model;

[0020] Figure 4 It is a bottom view partial structure schematic diagram of the flue gas inlet pipe of the present utility model;

[0021] Figure 5 For the present utility model Figure 1 The enlarged schematic diagram of the structure at A in;

[0022] Figure 6 For the present utility model Figure 1 The enlarged schematic diagram of the structure at B in;

[0023] In the figure: 100, demister main body; 110, drying tank; 111, support frame; 112, drain valve; 120, condensation area; 130, exhaust area; 131, exhaust pipe; 132, docking screw head; 133, auxiliary nut; 140, partition cover; 141, ventilation chimney; 142, ventilation hole; 143, guiding top cover; 150, condensation cover; 151, condensation component; 152, junction box; 153, leakage hole; 154, drain seat; 155, plug cap; 160, flue gas inlet pipe; 161, gas surge pipe rack; 162, check valve; 163, sealing flange; 164, support sleeve; 170, drying reagent. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-6 , an embodiment provided by the present utility model:

[0026] A demister for a flue gas desulfurization system, comprising a demister main body 100. The demister main body 100 consists of a drying tank 110. A condensation area 120 is fixedly arranged above the drying tank 110. An exhaust area 130 is assembled at the top of the condensation area 120. A partition cover 140 is assembled at the docking part of the condensation area 120 and the drying tank 110. An air vent chimney 141 is integrally arranged above the partition cover 140. A condensation cover 150 is arranged above the air vent chimney 141. The condensation cover 150 is assembled on the upper inner wall of the condensation area 120. A flue gas inlet pipe 160 is inserted and assembled on the left side of the drying tank 110. A drying reagent 170 is filled inside the drying tank 110, and the drying reagent 170 submerges the lower part of the flue gas inlet pipe 160;

[0027] Further, a surge pipe rack 161 is integrally arranged at the lower part of the flue gas inlet pipe 160, and the surge pipe rack 161 is distributed in a cross shape. A check valve 162 is assembled at the upper part of the flue gas inlet pipe 160. The flue gas inlet pipe 160 and the left side wall of the drying tank 110 are assembled and sealed through a sealing flange 163, and the upper part of the flue gas inlet pipe 160 is sleeved and supported on the left outer wall of the demister main body 100 through a support sleeve 164. Through this design, it is convenient for the influx and dispersion of flue gas;

[0028] Further, the condensation cover 150 is arranged in a conical shape, and a condensation component 151 is assembled in a fitting manner above the top of the condensation cover 150. The condensation component 151 is connected to a junction box 152 through a wire. The junction box 152 is assembled on the top side of the exhaust area 130. Leak holes 153 are arranged inside the condensation cover 150. Through this design, it is convenient to condense the mist through the condensation cover 150;

[0029] Further, the air vent chimney 141 is in a cylindrical shape, and air vent holes 142 are arranged around the upper part of the air vent chimney 141. A guiding top cover 143 is assembled above the air vent chimney 141, and the top of the guiding top cover 143 is in an arc shape. Through this design, it is convenient for the dried gas to disperse and influx, making the operation more convenient;

[0030] Further, the exhaust area 130 is in a conical shape, and an exhaust pipe 131 is integrally arranged at the top of the exhaust area 130. A docking screw head 132 is integrally arranged on the side of the exhaust pipe 131. An auxiliary nut 133 is threadedly sleeved on the outer end of the docking screw head 132. Through this design, it is convenient to exhaust and release gas from the exhaust area 130, making the subsequent treatment more convenient;

[0031] Further, the partition cover 140 is arranged in an arc-shaped convex shape, and a liquid discharge seat 154 is arranged on the side of the partition cover 140. The liquid discharge seat 154 is fixedly assembled at the lower part of the right side wall of the condensation area 120, and the inside of the liquid discharge seat 154 is communicated with the inside of the condensation area 120. A plug cap 155 is threadedly sleeved on the outer end of the liquid discharge seat 154. Through this design, it is convenient to discharge the condensed liquid inside the condensation area 120, making the subsequent use more convenient;

[0032] Furthermore, the bottom of the drying tank 110 is supported by a support frame 111, and the bottom of the drying tank 110 is arranged in an arc-shaped depression. A drain valve 112 is assembled at the bottom of the drying tank 110, and a pipe with an opening in the opposite direction to the handle of the drain valve 112 is assembled below the drain valve 112. Through this design, it is convenient to support and install the demisting main body 100, and at the same time, it is convenient to assist in discharging the drying reagent 170 with the cooperation of the drain valve 112.

[0033] Working principle: During assembly and use, the upper end of the flue gas inlet pipe 160 is docked with the outlet of the flue gas desulfurization system. The exhaust pipe 131 is docked with the exhaust pipeline by unscrewing the auxiliary nut 133 and cooperating with the docking screw head 132. Subsequently, relevant drying reagent 170 is poured into the drying tank 110, and the corresponding reagent is selected according to the acidity and alkalinity of the flue gas, such as concentrated sulfuric acid, etc. Subsequently, when the gas enters the flue gas inlet pipe 160, it is convenient to rush into the drying reagent 170 through the surge pipe rack 161 for dispersion. Subsequently, after being dried by the drying reagent 170, it emerges from the liquid surface. When the gas continuously surges in, it is convenient to generate gas pressure inside the drying tank 110. Subsequently, it is convenient to push the dried gas through the gas pressure. Through the ventilation chimney 141 and in cooperation with the ventilation holes 142, it is convenient for the gas to disperse into the condensation area 120. Subsequently, also under the gas pressure, it is convenient to rush towards the condensation cover 150. Subsequently, when passing through the leakage holes 153, with the cooperation of the condensation component 151 and the junction box 152, it is convenient to condense and dehumidify the gas. Subsequently, with the cooperation of the exhaust area 130 and the exhaust pipe 131, it is convenient to discharge the gas, so as to facilitate the double demisting and dehumidifying operation, making the operation and use efficiency more efficient. The operation ends here.

[0034] It should be noted that in this application, the connection, specific connection structure, and usage principle of the condensation cover 150, the condensation component 151, and the junction box 152 all belong to the prior art and are common knowledge to those skilled in the art. They can be realized through various implementation methods, and no other special requirements are made in this application. As long as they can achieve the functions described in this application, specific limitations are not made here.

[0035] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention; any ordinary technician in the industry can smoothly implement the present invention as shown in the accompanying drawings of the specification and described above; however, any slight changes, modifications, and equivalent changes made by those skilled in the art within the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A demister for a flue gas desulfurization system, comprising a demister body (100), characterized in that: The demisting body (100) comprises a drying tank (110), a condensation zone (120) is fixedly arranged on the upper part of the drying tank (110), an exhaust zone (130) is arranged on the top of the condensation zone (120), a baffle cover (140) is arranged at the joint between the condensation zone (120) and the drying tank (110), a vent chimney (141) is integrally arranged on the upper part of the baffle cover (140), a condensation cover (150) is arranged above the vent chimney (141), and the condensation cover (150) is arranged above the inner wall of the condensation zone (120), a flue gas inlet pipe (160) is inserted and arranged on the left side of the drying tank (110), a drying agent (170) is poured into the interior of the drying tank (110), and the drying agent (170) submerges the lower part of the flue gas inlet pipe (160).

2. A demister for a flue gas desulfurization system according to claim 1, characterized in that: The lower part of the smoke inlet pipe (160) is integrally provided with an air gushing pipe rack (161), and the air gushing pipe rack (161) is distributed in a cross shape. The upper part of the smoke inlet pipe (160) is equipped with a check valve (162). The smoke inlet pipe (160) and the left side wall of the drying tank (110) are assembled and sealed by a sealing flange (163), and the upper part of the smoke inlet pipe (160) is supported on the left side outer wall of the demisting body (100) by a support sleeve (164).

3. The demister of a flue gas desulfurization system according to claim 1, characterized in that: The condensation hood (150) is arranged in a conical shape, and a condensation assembly (151) is fitted on the top of the condensation hood (150). The condensation assembly (151) is connected to a junction box (152) via a wire. The junction box (152) is mounted on the top side of the exhaust area (130). A leakage hole (153) is opened inside the condensation hood (150).

4. The demister of a flue gas desulfurization system according to claim 1, characterized in that: The ventilation chimney (141) is cylindrical, and ventilation holes (142) are provided around the upper part of the ventilation chimney (141). The top of the ventilation chimney (141) is equipped with a guide top cover (143), and the top of the guide top cover (143) is arranged in an arc shape.

5. The demister of a flue gas desulfurization system according to claim 1, characterized in that: The exhaust area (130) is conical in shape, and an exhaust pipe (131) is integrally arranged at the top of the exhaust area (130), a docking screw head (132) is integrally arranged at the side of the exhaust pipe (131), and an auxiliary nut (133) is threadedly sleeved on the outer end of the docking screw head (132).

6. The demister of a flue gas desulfurization system according to claim 1, characterized in that: The partition cover (140) is arranged in an arc-shaped protrusion, and a drain seat (154) is arranged on the side of the partition cover (140). The drain seat (154) is fixedly assembled on the lower part of the right side wall of the condensation area (120), and the interior of the drain seat (154) is communicated with the interior of the condensation area (120). A plugging cap (155) is threadedly sleeved on the outer end of the drain seat (154).

7. The demister of a flue gas desulfurization system according to claim 1, characterized in that: The bottom of the drying tank (110) is supported by a support frame (111), and the bottom of the drying tank (110) is arranged in an arc-shaped depression. The bottom of the drying tank (110) is equipped with a drain valve (112), and a pipe with an opening in the opposite direction to the turning direction of the drain valve (112) is equipped below the drain valve (112).

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