Environment-friendly phosphate tail gas absorption tower

Abstract

The invention relates to the technical field of gas separation, in particular to an environment-friendly phosphate tail gas absorption tower, a supporting assembly comprises a base, a supporting shell, a liquid storage cavity, a gas inlet pipe and a water supply tank, the supporting shell is fixedly connected with the base and located at the top of the base, the liquid storage cavity is arranged at the bottom of the supporting shell, and the gas inlet pipe is arranged on one side of the supporting shell; the water supply tank is arranged on one side of the supporting shell, the spraying assembly comprises a supporting net, a reaction layer, a supporting rod, a liquid inlet pipe, a rotating pipe frame and a plurality of spraying heads, the supporting net is arranged in the supporting shell, the reaction layer is arranged on the supporting net, the supporting rod is fixed to the upper portion of the reaction layer, the liquid inlet pipe is fixed to the supporting rod, and the rotating pipe frame is rotationally connected with the supporting rod; and the multiple spraying heads communicate with the rotating pipe frame and are located on the periphery of the rotating pipe frame, and the exhaust assembly is arranged at the top of the supporting shell. Therefore, the tail gas containing phosphate can be effectively treated, and the water mist can be better combined with the tail gas for absorption.

Description

Technical Field

[0001] The invention relates to the technical field of gas separation, and in particular to a phosphate environmentally friendly tail gas absorption tower. Background Art

[0002] In the production process of anhydrous phosphate, a large amount of by-products are inevitably produced, including carbon dioxide (CO2), nitrogen (N2) and dust. The existence of these by-products poses a challenge to both the environment and the production process. In particular, the content of dust has become a key factor affecting the emission quality.

[0003] Dust is usually composed of tiny particles generated during the processes of raw material crushing, transportation, heating, etc. These particles not only pollute the air, but also may cause harm to human health, especially for those workers who are exposed to dust for a long time, inhaling dust may cause respiratory diseases. In addition, dust can also damage production equipment, such as causing the sprinkler head to be blocked, affecting the normal operation of the equipment, and thus reducing production efficiency.

[0004] In order to ensure that emissions during the production process meet environmental standards, effective measures must be taken to control dust emissions. This not only includes the use of dust removal equipment such as cyclone separators and bag dust collectors during the production process, but also requires regular maintenance of these equipment to ensure their continued effective operation. At the same time, companies also need to strengthen employee occupational health and safety management, provide appropriate protective equipment, and reduce the health threat of dust to workers.

[0005] Therefore, controlling dust emissions is not only a requirement to comply with environmental regulations, but also an important measure to protect employee health, improve production efficiency and maintain a good corporate image. Through effective management of dust, the production environment can be greatly improved, environmental pollution can be reduced, and sustainable development can be promoted.

[0006] The existing anhydrous phosphate tail gas absorption tower has a fixed spraying range during use and is unable to flush the precipitates between the gaps in the reaction layer, thereby reducing the gas outlet efficiency and affecting the combination with water mist. Summary of the invention

[0007] The purpose of the present invention is to provide a phosphate environmentally friendly tail gas absorption tower, which is intended to be able to effectively treat tail gas containing phosphate so that water mist can be better combined with the tail gas for absorption.

[0008] To achieve the above-mentioned purpose, the present invention provides a phosphate environmentally friendly tail gas absorption tower, including a support assembly, a spray assembly and an exhaust assembly, the support assembly including a base, a support shell, a liquid storage cavity, an air inlet pipe and a water supply tank, the support shell is fixedly connected to the base and is located at the top of the base, the liquid storage cavity is arranged at the bottom of the support shell, the air inlet pipe is arranged on one side of the support shell, and the water supply tank is arranged on one side of the support shell, the spray assembly includes a support net, a reaction layer, a support rod, a liquid inlet pipe, a rotating pipe rack and a plurality of spray heads, the support net is arranged in the support shell, the reaction layer is arranged on the support net, the support rod is fixed above the reaction layer, the liquid inlet pipe is fixed on the support rod, the rotating pipe rack is rotatably connected to the support rod and is connected to the liquid inlet pipe, a plurality of the spray heads are connected to the rotating pipe rack and are located around the rotating pipe rack, and the exhaust assembly is arranged on the top of the support shell.

[0009] Wherein, the supporting shell includes a shell, an inspection window and a sealing ring, the inspection window is rotatably connected to the shell and is located on a side of the shell close to the spray head, and the sealing ring is fixedly connected to the shell and is located on a side close to the inspection window.

[0010] Wherein, the water supply tank includes a tank body, a liquid inlet pump and a water pressure sensor, the liquid inlet pump is connected to the liquid inlet pipe, the tank body is connected to the liquid inlet pump, and the water pressure sensor is arranged on one side of the liquid inlet pump.

[0011] Among them, the liquid inlet pipe includes a liquid inlet pipe body, a solenoid valve and a flow meter, the liquid inlet pipe body is connected to the liquid inlet pump, the solenoid valve is connected to the liquid inlet pipe body, the flow meter is arranged on one side of the solenoid valve, and the rotating pipe rack is connected to the liquid inlet pipe body.

[0012] Wherein, the spray assembly further includes a plurality of power spray heads, which are connected to the rotating pipe rack and are located on one side of the spray head.

[0013] Wherein, the spray assembly also includes a water volume controller, and the water volume controller is used to increase the water output at each preset time interval to clean the reaction layer.

[0014] Among them, the water volume controller includes a pressure sensor, a data processing unit and a control unit. The pressure sensor is arranged below the support network and is used to obtain gravity data of the reaction layer. The data processing unit is used to obtain water content data based on the gravity data. The control unit is used to increase the water content data to a preset value at each preset time interval to flush the reaction layer.

[0015] Wherein, the exhaust assembly includes a secondary reaction joint, a connecting pipe, a filter box and an exhaust pipe, the secondary reaction joint is connected to the support shell, one end of the connecting pipe is connected to the secondary reaction joint, the other end of the connecting pipe extends into the filter box, and the exhaust pipe is arranged on the top of the connecting pipe.

[0016] The phosphate environmentally friendly tail gas absorption tower of the present invention has a base for stabilizing the entire device, and a support shell is installed on the base and firmly connected to the base to protect the internal components. The liquid storage cavity is located at the bottom of the support shell, and is mainly used to store the liquid medium for absorbing tail gas. The air inlet pipe is arranged on one side of the support shell, which is responsible for introducing the tail gas to be treated into the tower; the water supply tank is also located on one side of the support shell, which is used to store the clean water or solution required for spraying. The spray assembly includes a support net, a reaction layer, a support rod, a liquid inlet pipe, a rotating pipe rack and a plurality of spray heads. The support net is located inside the support shell and is used to carry the reaction layer, and the reaction layer is where a chemical reaction occurs when the tail gas contacts the absorption liquid. The support rod is fixed above the reaction layer, and the liquid inlet pipe is connected thereto, which is responsible for conveying the absorption liquid. The rotating pipe rack is connected to the support rod by rotation so that the absorption liquid can be evenly distributed. A plurality of spray heads are connected to the rotating pipe rack and are distributed around the pipe rack, so that the absorption liquid entering from the liquid inlet pipe can be transported to the plurality of spray heads through the pipe rack for spraying, so that the contact area with the tail gas can be increased and the treatment efficiency can be improved. The exhaust assembly is arranged at the top of the support shell to discharge the treated clean gas out of the absorption tower. This design ensures that the treated air can be safely discharged into the environment while minimizing the pollution to the environment. In summary, this phosphate environmentally friendly tail gas absorption tower is not only compact and reasonable in structure, but also can effectively treat tail gas containing phosphates, and has significant environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural diagram of a phosphate environmentally friendly tail gas absorption tower according to the first embodiment of the present invention.

[0019] Figure 2 It is the right side structural diagram of the phosphate environmentally friendly tail gas absorption tower of the first embodiment of the present invention.

[0020] Figure 3 It is a left side structural diagram of the phosphate environmentally friendly tail gas absorption tower according to the first embodiment of the present invention.

[0021] Figure 4 It is a cross-sectional structural diagram of a phosphate environmentally friendly tail gas absorption tower according to the first embodiment of the present invention.

[0022] Figure 5 yes Figure 4 A partial enlargement of detail A.

[0023] Figure 6 It is a structural diagram of a water volume controller according to a first embodiment of the present invention.

[0024] Support assembly 101, spray assembly 102, exhaust assembly 103, base 104, support shell 105, liquid storage cavity 106, air inlet pipe 107, water supply box 108, support net 109, reaction layer 110, support rod 111, liquid inlet pipe 112, rotating pipe rack 113, multiple spray heads 114, shell 115, inspection window 116, sealing ring 117, box body 118, liquid inlet pump 119, water pressure sensor 120, liquid inlet pipe body 121, solenoid valve 122, flow meter 123, power nozzle 124, water volume controller 125, pressure sensor 126, data processing unit 127, control unit 128, secondary reaction joint 129, connecting pipe 130, filter box 131, exhaust pipe 132, filter box body 133, stirring blade 134, stirring motor 135, cleaning head 136. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] First embodiment

[0028] See also Figure 1 to Figure 6The present invention provides a phosphate environmentally friendly tail gas absorption tower, comprising a support component 101, a spray component 102 and an exhaust component 103, wherein the support component 101 comprises a base 104, a support shell 105, a liquid storage cavity 106, an air intake pipe 107 and a water supply tank 108, wherein the support shell 105 is fixedly connected to the base 104 and is located at the top of the base 104, the liquid storage cavity 106 is arranged at the bottom of the support shell 105, the air intake pipe 107 is arranged at one side of the support shell 105, the water supply tank 108 is arranged at one side of the support shell 105, the spray component 102 comprises a support net 109, a reaction layer 110, a support rod 111, a liquid inlet pipe 112, a rotating pipe rack 113 and a plurality of spray heads 114, the support net 109 is arranged in the support shell 105, the reaction layer 110 is arranged on the support net 109, the support rod 111 is fixed above the reaction layer 110, the liquid inlet pipe 112 is fixed on the support rod 111, the rotating pipe rack 113 is rotatably connected to the support rod 111 and is connected to the liquid inlet pipe 112, the plurality of spray heads are connected to the rotating pipe rack 113 and are located around the rotating pipe rack 113, and the exhaust component 103 is arranged on the top of the support shell 105.

[0029] In this embodiment, the support assembly 101 is the basic part of the entire absorption tower, which is composed of a base 104, a support shell 105, a liquid storage cavity 106, an air inlet pipe 107 and a water supply tank 108. The base 104 is used to stabilize the entire device, and the support shell 105 is installed on the base 104 and is firmly connected to the base 104 to protect the internal components. The liquid storage cavity 106 is located at the bottom of the support shell 105 and is mainly used to store liquid media for absorbing tail gas. The air inlet pipe 107 is located on one side of the support shell 105 and is responsible for introducing the tail gas to be treated into the tower; the water supply tank 108 is also located on one side of the support shell 105 and is used to store clean water or solution required for spraying. The spray assembly 102 includes a support net 109, a reaction layer 110, a support rod 111, a liquid inlet pipe 112, a rotating pipe rack 113 and a plurality of spray heads 114. The support net 109 is located inside the support shell 105 and is used to support the reaction layer 110. The reaction layer 110 is where a chemical reaction occurs when the tail gas contacts the absorption liquid. Specifically, it can be made of a mixture of materials such as calcium hydroxide (Ca(OH)2), sodium hydroxide (NaOH), activated carbon, and silica gel. The support rod 111 is fixed above the reaction layer 110, and the liquid inlet pipe 112 is connected thereto, which is responsible for transporting the absorption liquid. The rotating pipe rack 113 is connected to the support rod 111 by rotation, so that the absorption liquid can be evenly distributed. A plurality of spray heads 114 are connected to the rotating pipe rack 113 and distributed around the pipe rack, so that the absorption liquid entering from the liquid inlet pipe 112 can be transported to the plurality of spray heads through the pipe rack for spraying, so that the contact area with the tail gas can be increased and the treatment efficiency can be improved. The exhaust component 103 is arranged at the top of the support shell 105 to discharge the treated clean gas out of the absorption tower. This design ensures that the treated air can be safely discharged into the environment while minimizing the pollution to the environment. In summary, this phosphate environmentally friendly tail gas absorption tower is not only compact and reasonable in structure, but also can effectively treat tail gas containing phosphate, and has significant environmental benefits.

[0030] The support shell 105 includes a shell 115 , an inspection window 116 and a sealing ring 117 . The inspection window 116 is rotatably connected to the shell 115 and is located on a side of the shell 115 close to the spray head. The sealing ring 117 is fixedly connected to the shell 115 and is located on a side close to the inspection window 116 .

[0031] The support shell 105 is one of the main structures of the absorption tower, which includes a shell 115, an inspection window 116 and a sealing ring 117. The shell 115, as the main carrier, provides enough space to accommodate all internal components. The inspection window 116 is installed on the shell 115 by a rotating connection, located on the side close to the spray head, so that the operator can regularly check the internal situation and replace the spray head when the spray head is blocked. In order to ensure the airtightness inside the tower, the sealing ring 117 is fixed near the inspection window 116 to ensure that there will be no leakage.

[0032] The water supply tank 108 includes a tank body 118 , a liquid inlet pump 119 and a water pressure sensor 120 . The liquid inlet pump 119 is connected to the liquid inlet pipe 112 . The tank body 118 is connected to the liquid inlet pump 119 . The water pressure sensor 120 is arranged on one side of the liquid inlet pump 119 .

[0033] The box 118 is used to store the liquid required for spraying, the liquid inlet pump 119 is responsible for conveying the liquid to the liquid inlet pipe 112, and the water pressure sensor 120 is installed on one side of the liquid inlet pump 119 to monitor the pressure of the liquid and ensure the normal operation of the spraying system.

[0034] The liquid inlet pipe 112 includes a liquid inlet pipe body 121, a solenoid valve 122 and a flow meter 123. The liquid inlet pipe body 121 is connected to the liquid inlet pump 119, the solenoid valve 122 is connected to the liquid inlet pipe body 121, the flow meter 123 is arranged on one side of the solenoid valve 122, and the rotating pipe rack 113 is connected to the liquid inlet pipe body 121.

[0035] The liquid inlet pipe 112 is composed of a liquid inlet pipe body 121, a solenoid valve 122 and a flow meter 123, wherein the liquid inlet pipe body 121 is connected to the liquid inlet pump 119, the solenoid valve 122 is used to control the flow of liquid, and the flow meter 123 is arranged on one side of the solenoid valve 122 to measure the amount of liquid passing through to ensure the accurate operation of the spray system. The rotating pipe rack 113 is connected to the liquid inlet pipe body 121 to facilitate uniform distribution of the liquid.

[0036] The spray assembly 102 further includes a plurality of power spray heads 124 , which are connected to the rotating pipe rack 113 and are located on one side of the spray head.

[0037] The spray assembly 102 also includes a plurality of power nozzles 124, which are connected to the rotating pipe rack 113 and are located on one side of the spray head and are tilted relative to the rotating rack, so that when spraying liquid, the support pipe rack can be driven to rotate by the reaction force, thereby increasing the intensity and range of the spraying and improving the absorption efficiency.

[0038] The spray assembly 102 further includes a water volume controller 125 , and the water volume controller 125 is used to increase the water volume at preset time intervals to clean the reaction layer 110 .

[0039] The water volume controller 125 includes a pressure sensor 126, a data processing unit 127 and a control unit 128. The pressure sensor 126 is arranged below the support net 109 and is used to obtain gravity data of the reaction layer 110. The data processing unit 127 is used to obtain water content data based on the gravity data. The control unit 128 is used to increase the water content data to a preset value at each preset time interval to flush the reaction layer 110.

[0040] The pressure sensor 126 is installed below the support net 109, close to the reaction layer 110. Its function is to monitor the weight change of the reaction layer 110 in real time to reflect the water content of the reaction layer 110. When the reaction layer 110 absorbs harmful substances in the exhaust gas, its weight will increase. As the water gradually evaporates or is consumed by the reaction, the weight will decrease. The data of the pressure sensor 126 is crucial to maintaining the optimal working state of the reaction layer 110. The data processing unit 127 receives the signal from the pressure sensor 126 and analyzes and processes it. It calculates the current water content of the reaction layer 110 based on the gravity data collected by the sensor. By comparing the difference between the ideal water content and the actual water content, the data processing unit 127 can determine whether it is necessary to increase the amount of spray water to supplement the humidity of the reaction layer 110. The control unit 128 decides when to start the spray system based on the information provided by the data processing unit 127, and controls the intensity and time of the spray. Specifically, the control unit 128 automatically starts the spray system at a preset time interval to increase the water output to ensure that the reaction layer 110 reaches a preset moisture content level. This is to maintain the optimal working state of the reaction layer 110 and avoid a decrease in processing efficiency due to overdryness or overwetness.

[0041] When the control unit 128 receives the instruction from the data processing unit 127 to increase the water content, it will adjust the water output of the spray system so that the water content of the reaction layer 110 can be restored to the ideal level within a predetermined time. In this way, not only can the reaction layer 110 be always in an efficient working state, but also the scaling phenomenon can be effectively prevented, thereby extending the service life of the equipment.

[0042] The exhaust assembly 103 includes a secondary reaction joint 129, a connecting pipe 130, a filter box 131 and an exhaust pipe 132. The secondary reaction joint 129 is connected to the support shell 105, one end of the connecting pipe 130 is connected to the secondary reaction joint 129, and the other end of the connecting pipe 130 extends into the filter box 131. The exhaust pipe 132 is arranged on the top of the connecting pipe 130.

[0043] The filter box 131 includes a filter box body 133 , a stirring blade 134 and a stirring motor 135 . The stirring blade 134 is rotatably disposed in the filter box body 133 , and an output end of the stirring motor 135 is fixedly connected to the stirring blade 134 .

[0044] The secondary reaction joint 129 guides the exhaust gas that has been preliminarily treated inside the absorption tower out. The secondary reaction joint 129 is closely connected to the support shell 105 to ensure that the exhaust gas can be smoothly guided out from the inside of the absorption tower and enter the next step of the treatment process. A reaction layer 110 is also provided in the secondary reaction joint 129 to treat the impurities remaining in the exhaust gas.

[0045] One end of the connecting pipe 130 is tightly connected to the secondary reaction joint 129, and the other end is inserted into the filter box 131. The connecting pipe 130 is designed to allow the exhaust gas to flow smoothly into the filter box 131 for further processing. In order to ensure the smoothness of the airflow, the connecting pipe 130 is usually designed with a smooth inner wall and a certain inclination angle to help the airflow enter the filter box 131 smoothly.

[0046] The filter box 131 is where the tail gas is deeply purified. It consists of three parts: the filter box body 133, the stirring blade 134 and the stirring motor 135. The filter box body 133 is a sealed container, which is filled with a treatment medium, such as a liquid absorbent or other filter material, for further adsorbing or reacting the residual pollutants in the tail gas. The stirring blade 134 is installed inside the filter box 131 and driven by the stirring motor 135 to rotate inside the filter box 131 to promote full contact and mixing between the tail gas and the treatment medium and improve the purification efficiency. The exhaust pipe 132 is set at the top of the connecting pipe 130, which is the outlet for the final discharge of the tail gas. The tail gas treated by the filter box 131 is discharged into the atmosphere through the exhaust pipe 132. The design of the exhaust pipe 132 takes into account the height and direction of the discharge to ensure the safety and environmental protection of the discharge.

[0047] The exhaust assembly 103 further includes a cleaning head 136, which is connected to the pipe body and is located on a side close to the secondary reaction joint 129. The cleaning head 136 is connected to the connecting pipe 130 and is located on a side close to the secondary reaction joint 129. Its function is to spray cleaning liquid or high-pressure water flow into the connecting pipe 130 when necessary to remove sediment or pollutants that may accumulate on the secondary reaction joint 129 to ensure unobstructed flow.

[0048] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. Phosphate environmentally friendly tail gas absorption tower, characterized in that: It includes a support component, a spray component and an exhaust component, wherein the support component includes a base, a support shell, a liquid storage cavity, an air inlet pipe and a water supply tank, the support shell is fixedly connected to the base and is located at the top of the base, the liquid storage cavity is arranged at the bottom of the support shell, the air inlet pipe is arranged at one side of the support shell, and the water supply tank is arranged at one side of the support shell, the spray component includes a support net, a reaction layer, a support rod, a liquid inlet pipe, a rotating pipe rack and a plurality of spray heads, the support net is arranged in the support shell, the reaction layer is arranged on the support net, the support rod is fixed above the reaction layer, the liquid inlet pipe is fixed on the support rod, the rotating pipe rack is rotatably connected to the support rod and is connected with the liquid inlet pipe, a plurality of the spray heads are connected with the rotating pipe rack and are located around the rotating pipe rack, and the exhaust component is arranged on the top of the support shell.

2. The phosphate environmentally friendly tail gas absorption tower according to claim 1, characterized in that: The support shell comprises a shell, an inspection window and a sealing ring. The inspection window is rotatably connected to the shell and is located on a side of the shell close to the spray head. The sealing ring is fixedly connected to the shell and is located on a side close to the inspection window.

3. The phosphate environmentally friendly tail gas absorption tower according to claim 2, characterized in that: The water supply tank comprises a tank body, a liquid inlet pump and a water pressure sensor. The liquid inlet pump is connected to the liquid inlet pipe, the tank body is connected to the liquid inlet pump, and the water pressure sensor is arranged on one side of the liquid inlet pump.

4. The phosphate environmentally friendly tail gas absorption tower according to claim 3, characterized in that: The liquid inlet pipe includes a liquid inlet pipe body, a solenoid valve and a flow meter. The liquid inlet pipe body is connected to the liquid inlet pump, the solenoid valve is connected to the liquid inlet pipe body, the flow meter is arranged on one side of the solenoid valve, and the rotating pipe rack is connected to the liquid inlet pipe body.

5. The phosphate environmentally friendly tail gas absorption tower according to claim 4, characterized in that: The spray assembly also includes a plurality of power spray heads, which are connected to the rotating pipe rack and are located on one side of the spray head.

6. The phosphate environmentally friendly tail gas absorption tower according to claim 5, characterized in that: The spray assembly also includes a water volume controller, which is used to increase the water output at preset time intervals to clean the reaction layer.

7. The phosphate environmentally friendly tail gas absorption tower according to claim 6, characterized in that: The water volume controller includes a pressure sensor, a data processing unit and a control unit. The pressure sensor is arranged below the support net and is used to obtain gravity data of the reaction layer. The data processing unit is used to obtain water content data based on the gravity data. The control unit is used to increase the water content data to a preset value at every preset time interval to flush the reaction layer.

8. The phosphate environmentally friendly tail gas absorption tower according to claim 7, characterized in that: The exhaust assembly includes a secondary reaction joint, a connecting pipe, a filter box and an exhaust pipe, wherein the secondary reaction joint is connected to the support shell, one end of the connecting pipe is connected to the secondary reaction joint, the other end of the connecting pipe extends into the filter box, and the exhaust pipe is arranged on the top of the connecting pipe.

Images