Desulfurizing tower capable of reducing foam in desulfurizing liquid

Abstract

The utility model discloses a desulfurizing tower capable of reducing foam in desulfurizing liquid, which relates to the technical field of desulfurizing equipment and comprises a tower body, a support rod fixedly mounted in the tower body, an umbrella-shaped buffer plate fixedly mounted on the support rod, a funnel-shaped liquid receiving tray fixedly mounted in the tower body and sleeved on the support rod, and a plurality of foam holes are formed in the support rod. The buffer plate is located above the liquid receiving disc, a castor oil recycling box is installed on the outer side of the tower body in a matched mode, an annular pipe is installed on the outer side of the tower body in a matched mode, a plurality of spraying heads are installed on the annular pipe in a matched mode, and the spraying heads are located above the liquid receiving disc and face the buffer plate. The liquid tank in the desulfurizing tower contains castor oil, the castor oil can be sprayed into the tower body through a corresponding liquid pump, and the castor oil can float on the surface of desulfurizing liquid to prevent a large amount of foams from being generated due to the surface tension and the density of the liquid, so that the amount of the foams in the desulfurizing tower is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization equipment, in particular to a desulfurization tower capable of reducing foam in desulfurization liquid. Background Art

[0002] The desulfurization tower is a tower-type equipment for desulfurization of industrial waste gas. The desulfurization tower was originally built with granite and was the most widely used. The SO2 absorption and purification process treats low-concentration SO2 flue gas with a considerable amount of flue gas, which requires continuous and efficient purification of the flue gas in an instant. Therefore, the chemical reaction in which SO2 participates should be an extremely fast reaction. Their membrane conversion coefficient is large and the reaction occurs in the membrane. Therefore, it is more appropriate to use an absorption tower with a continuous gas phase, high turbulence and a large phase interface as a desulfurization tower and desulfurization dust collector. Usually, spray towers, packed towers, and spray towers are used. , plate towers, Venturi absorption towers, etc. can meet these requirements. Among them, the spray tower is one of the most widely used desulfurization tower types. The spray tower has the advantages of simple structure and mature and reliable technology. It is widely used in large power plants and small and medium-sized low-sulfur flue gas treatment; for high-sulfur flue gas treatment, the non-ferrous industry mainly uses pneumatic emulsification desulfurization towers, multi-layer spray towers, etc., which use the principle of water film desulfurization and dust removal, also known as granite water film desulfurization dust collector, or granite water film desulfurization dust collector. The common main equipment in the desulfurization system is absorption tower, flue, chimney, desulfurization pump, booster fan and other main equipment.

[0003] After the current desulfurization tower has been used for a period of time, a large amount of foam will appear on the surface of the desulfurization liquid in the desulfurization tower. On the one hand, a large amount of foam will reduce the desulfurization efficiency of the desulfurization tower. On the other hand, excessive foam will cause overflow, causing corrosion to the equipment, instruments and pipelines in the desulfurization tower. Utility Model Content

[0004] In order to solve the problem of excessive foam in the desulfurization tower mentioned in the above background technology, the purpose of the utility model is to provide a desulfurization tower capable of reducing the foam in the desulfurization liquid.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desulfurization tower capable of reducing foam in desulfurization liquid, comprising a tower body, a support rod fixedly installed in the tower body, a buffer plate fixedly installed on the support rod, the buffer plate is umbrella-shaped, a liquid receiving pan fixedly installed in the tower body, the liquid receiving pan is funnel-shaped, the liquid receiving pan is sleeved on the support rod, the buffer plate is located above the liquid receiving pan, a castor oil recovery box is installed on the outside of the tower body, an annular pipe is installed on the outside of the tower body, a plurality of spray heads are installed on the annular pipe, the spray heads are located above the liquid receiving pan, and the spray heads face the buffer plate.

[0006] Preferably, an air inlet pipe is installed on one side of the tower body, and an air outlet pipe is installed on the upper side of the tower body.

[0007] Preferably, a circulation pump is installed on the outside of the tower body, a spray rack is installed inside the tower body, the liquid inlet of the circulation pump is connected to the bottom of the inner side of the tower body, and the liquid outlet of the circulation pump is connected to the spray rack pipe through a connecting pipe.

[0008] Preferably, a demister is installed in the tower body, and the demister is located above the spray rack. A plurality of transparent observation windows are installed on the tower body.

[0009] Preferably, the diameter of the buffer plate is smaller than the diameter of the liquid receiving tray.

[0010] Preferably, a liquid tank, a first liquid pump and a second liquid pump are installed in the castor oil recovery box, the first liquid pump and the second liquid pump are both connected to the liquid tank pipe, a liquid recovery pipe is installed on the second liquid pump, one end of the liquid recovery pipe is located in the liquid receiving tray, and the first liquid pump is connected to the annular pipe through a liquid suction pipe.

[0011] The liquid tank in the desulfurization tower of the utility model contains castor oil, which can be sprayed into the tower body through a corresponding liquid pump. Due to the surface tension and density of the liquid, the castor oil can float on the surface of the desulfurization liquid to prevent the large-scale generation of foam, thereby reducing the amount of foam in the desulfurization tower and preventing the foam from overflowing out of the exhaust pipe.

[0012] The desulfurization liquid droplets in the desulfurization tower of the utility model will first drip onto the buffer plate to prevent the desulfurization liquid droplets from directly dripping into the desulfurization liquid to generate a large amount of foam. The desulfurization liquid on the buffer plate will slowly drip into the liquid receiving tray. Castor oil mainly floats in the liquid receiving tray. The desulfurization liquid will enter the desulfurization liquid below the liquid receiving tray through the liquid receiving tray, effectively preventing the generation of foam and preventing the foam from reducing the desulfurization efficiency of the desulfurization tower. The castor oil recovery box can recycle the castor oil in the liquid receiving tray and then spray it on the buffer plate through the spray head. Since the castor oil will not react with the substances in the desulfurization tower, the cost can be effectively reduced due to recycling and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting part of the present application are used to provide a further understanding of the present application. The schematic application and description of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 The utility model is a basic structural schematic diagram of a desulfurization tower capable of reducing foam in desulfurization liquid.

[0015] Figure 2 The utility model is a cross-sectional view of the internal structure of a desulfurization tower capable of reducing foam in desulfurization liquid.

[0016] Figure 3 The utility model is a desulfurization tower capable of reducing foam in desulfurization liquid. Figure 1 Top view of the .

[0017] Figure 4 The utility model is a schematic diagram of the installation position of a liquid receiving tray of a desulfurization tower capable of reducing foam in desulfurization liquid.

[0018] Figure 5 The utility model is a schematic diagram of the internal structure of a castor oil recovery box of a desulfurization tower capable of reducing foam in desulfurization liquid.

[0019] Figure 6 The utility model is a schematic diagram of the liquid level relationship between castor oil and desulfurization liquid in a desulfurization tower capable of reducing foam in the desulfurization liquid.

[0020] The above drawings include the following reference numerals:

[0021] 101. tower body; 102. air inlet pipe; 103. air outlet pipe; 104. transparent observation window; 105. circulation pump; 106. connecting pipe; 107. annular pipe; 108. castor oil recovery tank; 109. spray rack; 110. demister; 111. buffer plate; 112. liquid receiving tray; 113. spray head; 114. support rod; 115. liquid extraction pipe; 116. liquid recovery pipe; 117. first liquid pump; 118. second liquid pump; 119. liquid tank. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-Figure 6 As shown, the present embodiment provides a desulfurization tower capable of reducing foam in desulfurization liquid, including a tower body 101, a support rod 114 is fixedly installed in the tower body 101, a buffer plate 111 is fixedly installed on the support rod 114, the buffer plate 111 is umbrella-shaped, a liquid receiving pan 112 is fixedly installed in the tower body 101, the liquid receiving pan 112 is funnel-shaped, the liquid receiving pan 112 is sleeved on the support rod 114, the buffer plate 111 is located above the liquid receiving pan 112, a castor oil recovery box 108 is installed on the outside of the tower body 101, an annular pipe 107 is installed on the outside of the tower body 101, a plurality of spray heads 113 are installed on the annular pipe 107, the spray heads 113 are located above the liquid receiving pan 112, and the spray heads 113 face the buffer plate 111.

[0024] Furthermore, referring to an embodiment of the utility model, the liquid tank 119 in the desulfurization tower contains castor oil, and the castor oil can be sprayed into the interior of the tower body 101 through a corresponding liquid pump. Due to the surface tension and density of the liquid, the castor oil can float on the surface of the desulfurization liquid to prevent the large-scale generation of foam, thereby reducing the amount of foam inside the desulfurization tower and preventing the foam from overflowing out of the outlet pipe 103.

[0025] An air inlet pipe 102 is installed on one side of the tower body 101, an air outlet pipe 103 is installed on the upper side of the tower body 101, a circulating pump 105 is installed on the outside of the tower body 101, a spray rack 109 is installed inside the tower body 101, a liquid inlet of the circulating pump 105 is connected to the bottom of the inner side of the tower body 101, and a liquid outlet of the circulating pump 105 is connected to the spray rack 109 through a connecting pipe 106, a demister 110 is installed inside the tower body 101, and the demister 110 is located above the spray rack 109, a plurality of transparent observation windows 104 are installed on the tower body 101, and the diameter of the buffer plate 111 is smaller than the diameter of the liquid receiving tray 112.

[0026] Further, referring to an embodiment of the utility model, the desulfurization liquid droplets in the desulfurization tower will first drip onto the buffer plate 111 to prevent the desulfurization liquid droplets from directly dripping into the desulfurization liquid to generate a large amount of foam. The desulfurization liquid on the buffer plate 111 will slowly drip into the liquid receiving tray 112. The main floating substance in the liquid receiving tray 112 is castor oil. The desulfurization liquid will pass through the liquid receiving tray 112 into the desulfurization liquid below the liquid receiving tray 112, thereby effectively preventing the generation of foam and preventing the foam from reducing the desulfurization efficiency of the desulfurization tower.

[0027] A liquid tank 119, a first liquid pump 117 and a second liquid pump 118 are installed in the castor oil recovery tank 108. The first liquid pump 117 and the second liquid pump 118 are both connected to the liquid tank 119 pipe. A liquid recovery pipe 116 is installed on the second liquid pump 118. One end of the liquid recovery pipe 116 is located in the liquid receiving tray 112. The first liquid pump 117 is connected to the annular pipe 107 through a liquid extraction pipe 115.

[0028] Further, referring to an embodiment of the present invention, the castor oil in this embodiment has the characteristic of high stability. The castor oil recovery box 108 in this embodiment can recycle the castor oil in the docking liquid tray 112, and then spray it on the buffer plate 111 through the spray head 113. Since the castor oil will not react with the substances in the desulfurization tower, the cost can be effectively reduced due to recycling and reuse.

[0029] It should be noted that the liquid tank 119 in the desulfurization tower of the utility model contains castor oil, which can be sprayed into the tower body 101 through a corresponding liquid pump. Due to the surface tension and density of the liquid, the castor oil can float on the surface of the desulfurization liquid to prevent the massive generation of foam, thereby reducing the amount of foam inside the desulfurization tower and preventing the foam from overflowing out of the exhaust pipe 103. The desulfurization liquid droplets in the desulfurization tower of the utility model will first drip onto the buffer plate 111 to prevent the desulfurization liquid droplets from directly dripping into the desulfurization liquid to generate a large amount of foam. The desulfurization liquid on the buffer plate 111 will slowly drip into the liquid receiving tray 112. Castor oil is mainly floating in the liquid receiving tray 112. The desulfurization liquid will enter the bottom of the liquid receiving tray 112 through the liquid receiving tray 112. The castor oil recovery box 108 can recycle the castor oil in the receiving liquid tray 112, and then spray it on the buffer plate 111 through the spray head 113. Since castor oil will not react with the substances in the desulfurization tower, the recycling and reuse can effectively reduce the cost. The castor oil fills the receiving liquid tray 112, so that when the desulfurization liquid drops on the receiving liquid tray 112, it will fall into the bottom of the receiving liquid tray 112 through the upper and lower side openings of the receiving liquid tray 112, so that the receiving liquid tray 112 is always covered with castor oil. The surface tension of castor oil prevents the generation of a large amount of foam, which on the one hand increases the desulfurization efficiency of the desulfurization tower, and on the other hand prevents overflow caused by excessive foam.

[0030] It should be further 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", "comprises" or any other variations 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.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A desulfurization tower capable of reducing foam in desulfurization liquid, characterized in that: The invention comprises a tower body (101), wherein a support rod (114) is fixedly installed in the tower body (101), a buffer plate (111) is fixedly installed on the support rod (114), and the buffer plate (111) is umbrella-shaped; a liquid receiving pan (112) is fixedly installed in the tower body (101), and the liquid receiving pan (112) is funnel-shaped, the liquid receiving pan (112) is sleeved on the support rod (114), and the buffer plate (111) is located above the liquid receiving pan (112); a castor oil recovery box (108) is installed on the outside of the tower body (101); an annular pipe (107) is installed on the outside of the tower body (101), and a plurality of spray heads (113) are installed on the annular pipe (107), and the spray heads (113) are located above the liquid receiving pan (112), and the spray heads (113) face the buffer plate (111).

2. A desulfurization tower capable of reducing foam in desulfurization liquid according to claim 1, characterized in that: An air inlet pipe (102) is installed on one side of the tower body (101), and an air outlet pipe (103) is installed on the upper side of the tower body (101).

3. A desulfurization tower capable of reducing foam in desulfurization liquid according to claim 1, characterized in that: A circulation pump (105) is installed on the outside of the tower body (101), and a spray rack (109) is installed inside the tower body (101). The liquid inlet of the circulation pump (105) is connected to the bottom of the inside of the tower body (101), and the liquid outlet of the circulation pump (105) is connected to the spray rack (109) through a connecting pipe (106).

4. A desulfurization tower capable of reducing foam in desulfurization liquid according to claim 3, characterized in that: A demister (110) is installed in the tower body (101), and the demister (110) is located above the spray rack (109). A plurality of transparent observation windows (104) are installed on the tower body (101).

5. A desulfurization tower capable of reducing foam in desulfurization liquid according to claim 3, characterized in that: The diameter of the buffer plate (111) is smaller than the diameter of the liquid receiving plate (112).

6. A desulfurization tower capable of reducing foam in desulfurization liquid according to claim 1, characterized in that: The castor oil recovery box (108) is equipped with a liquid box (119), a first liquid pump (117) and a second liquid pump (118). The first liquid pump (117) and the second liquid pump (118) are both connected to the liquid box (119) by a pipe. The second liquid pump (118) is equipped with a liquid recovery pipe (116). One end of the liquid recovery pipe (116) is located in the liquid receiving tray (112). The first liquid pump (117) is connected to the annular pipe (107) by a liquid extraction pipe (115).

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