Ammonia tail gas absorbing and recycling device

Abstract

The utility model discloses an ammonia tail gas absorbing and recycling device which comprises an absorbing tank, a water pump is installed at the top of the absorbing tank, a spraying pipe penetrates through the outer wall of the absorbing tank and extends into the absorbing tank, and one side, located in the absorbing tank, of the spraying pipe is communicated with a plurality of water spraying heads. A gas inlet pipe mounted on the absorption tank is arranged on one side of the outer wall of the absorption tank, and a stirring and dissolving mechanism is arranged in the absorption tank. The utility model relates to the technical field of tail gas absorption, and in the ammonia tail gas absorption and recycling device, the ammonia tail gas is in contact with water to the greatest extent through the matching among a first bevel gear, a fourth bevel gear, a first rotating rod, a second rotating rod, a stirring rod, a spiral blade and a shell; the problems that according to the steps implemented by an existing device, part of ammonia tail gas is not dissolved in water, efficiency is not high, dissolution is not sufficient, meanwhile, leakage of the ammonia tail gas can be caused, and the safety problem is threatened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas absorption, in particular to an ammonia tail gas absorption and recycling device. Background Art

[0002] Ammonia is a colorless, toxic, reactive and corrosive gas with a strong odor. Ammonia can strongly irritate the mucous membranes of humans and animals, such as the eyes and respiratory tract. Under high concentration conditions, it can cause serious harm to people in a short period of time. Ammonia is used or produced in chemical industries such as pharmaceuticals, petrochemicals, food processing, wastewater treatment, sludge treatment and fertilizer manufacturing. During the processing and production of these industries, if the emission of ammonia exhaust gas is not strictly controlled, some of the ammonia exhaust gas will be emitted, which will have an adverse impact on the production area and the surrounding environment.

[0003] Ammonia is a gas that is highly soluble in water, so water is generally used to directly absorb the ammonia tail gas. The current commonly used practice is to pass the ammonia tail gas directly into water to dissolve the ammonia in water.

[0004] However, the existing device implements the steps in which part of the ammonia tail gas is not dissolved in water, resulting in low efficiency and insufficient dissolution. At the same time, it may cause leakage of the ammonia tail gas, posing a threat to safety issues. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an ammonia tail gas absorption and recycling device, which solves the problem that some ammonia tail gas is not dissolved in water in the steps implemented by the prior device, resulting in low efficiency and insufficient dissolution, and at the same time causing leakage of ammonia tail gas, posing a threat to safety issues.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: an ammonia tail gas absorption and recycling device, including an absorption tank, a water pump is installed on the top of the absorption tank, a spray pipe is connected to the bottom of the water pump, the spray pipe penetrates the outer wall of the absorption tank and extends to the inside thereof, a spray pipe is connected to a plurality of water spray heads on one side of the absorption tank, an air inlet pipe installed on the absorption tank is arranged on one side of the outer wall of the absorption tank, a stirring and dissolving mechanism is arranged inside the absorption tank, and the stirring and dissolving mechanism includes a first bevel gear, a fourth bevel gear, a first rotating rod, a first rotating rod, a fourth rotating rod, a first ... Two rotating rods, a stirring rod, a spiral blade and a shell, the shell is fixedly connected to the bottom of the inner wall of the absorption tank, fourth bevel gears are arranged on both sides of the interior of the shell, the top of the fourth bevel gear is fixedly connected to the first rotating rod, the first bevel gear is arranged between the two fourth bevel gears, the top of the first bevel gear is fixedly connected to the second rotating rod, the first rotating rod and the second rotating rod are respectively supported through the top of the shell by sealed bearings, and the first rotating rod and the second rotating rod are respectively fixedly connected to the outer wall on one side of the shell outside the shell.

[0007] Preferably, support legs are fixedly connected to both sides of the outer wall of the absorption tank, and a bottom plate is fixedly connected to the bottom of the support legs.

[0008] Preferably, a servo motor is fixedly connected to the top of the base plate, and a rotating shaft is fixedly connected to the output end of the servo motor. The rotating shaft passes through the bottom of the absorption tank through a sealed bearing and extends into the interior thereof. One end of the rotating shaft located inside the absorption tank is fixedly connected to the bottom of the first bevel gear, and both sides of the first bevel gear are meshedly connected to the second bevel gear. A connecting rod is fixedly connected to the outer side of the second bevel gear, and the end of the connecting rod is fixedly connected to the third bevel gear, and the third bevel gear is meshedly connected to the fourth bevel gear.

[0009] Preferably, an ammonia detector and an alarm fixedly connected to the absorption tank are respectively provided on both sides of the absorption tank, the alarm is electrically connected to a controller, the controller is fixedly connected to the outer wall of the absorption tank, and the controller is electrically connected to the ammonia detector.

[0010] Preferably, the top of the base plate is fixedly connected to a box body, a connecting pipe is connected to the side of the absorption tank away from the air inlet pipe, and the end of the connecting pipe is connected to the box body, and a valve installed on the connecting pipe is provided above the connecting pipe.

[0011] Preferably, a filter screen is fixedly connected to the inner wall of the connecting pipe, and a breathing valve is installed on the top of the box.

[0012] Beneficial Effects

[0013] The utility model provides an ammonia tail gas absorption and recycling device. It has the following beneficial effects: the ammonia tail gas absorption and recycling device is equipped with a first bevel gear, a fourth bevel gear, a first rotating rod, a second rotating rod, a stirring rod, a spiral blade and a shell, and the first bevel gear and the fourth bevel gear rotate, respectively driving the first rotating rod and the second rotating rod to rotate, thereby rotating the stirring rod and the spiral blade, so that the ammonia tail gas is in contact with water to the greatest extent, solving the problem that some ammonia tail gas is not dissolved in water, the efficiency is low, and the dissolution is insufficient in the steps implemented by the existing device, and at the same time, it will cause the leakage of ammonia tail gas, posing a threat to safety issues.

[0014] Through the cooperation between the ammonia detector, alarm and controller, when some ammonia exhaust gas leaks during the transmission and absorption process, the ammonia detector will identify and capture it, and transmit the signal to the controller. At the same time, the alarm electrically connected to the controller will report the alarm to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the appearance of the utility model;

[0017] Figure 3 Based Figure 1 A schematic diagram of the structure of the servo motor, the first bevel gear and the housing;

[0018] Figure 4 Based Figure 1 Schematic diagram of the structure of the midsole plate, the third bevel gear and the fourth bevel gear.

[0019] In the figure: 1, absorption tank, 2, sprinkler head, 3, sprinkler pipe, 4, water pump, 5, air inlet pipe, 6, fourth bevel gear, 7, first rotating rod, 8, stirring rod, 9, shell, 10, third bevel gear, 11, connecting rod, 12, second bevel gear, 13, first bevel gear, 14, servo motor, 15, bottom plate, 16, supporting leg, 17, second rotating rod, 18, spiral blade, 19, ammonia detector, 20, controller, 21, alarm, 22, connecting pipe, 23, filter, 24, box, 25, valve, 26, breathing valve, 27, rotating shaft. DETAILED DESCRIPTION

[0020] 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.

[0021] The existing device implements the steps in which part of the ammonia tail gas is not dissolved in water, resulting in low efficiency and insufficient dissolution. At the same time, it may cause leakage of the ammonia tail gas, posing a threat to safety issues.

[0022] In view of this, the utility model provides an ammonia tail gas absorption and recycling device. Through the cooperation between the first bevel gear, the fourth bevel gear, the first rotating rod, the second rotating rod, the stirring rod, the spiral blades and the shell, when the first bevel gear and the fourth bevel gear are rotated, the second rotating rod and the first rotating rod also rotate, driving the spiral blades and the stirring rod to rotate, so that the ammonia is in full contact with the water to facilitate the full dissolution of the ammonia in the water.

[0023] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0024] Embodiment 1: Figure 1-4It can be seen that an ammonia tail gas absorption and recycling device includes an absorption tank 1, a water pump 4 is installed on the top of the absorption tank 1, the model of the water pump 4 is not limited, the bottom of the water pump 4 is connected to a spray pipe 3, the spray pipe 3 penetrates the outer wall of the absorption tank 1 and extends to the inside thereof, the spray pipe 3 is located on one side of the absorption tank 1 and is connected to a plurality of water spray heads 2, and an air intake pipe 5 installed on the absorption tank 1 is provided on one side of the outer wall of the absorption tank 1. The purpose of such a design is that the water pump 4 can transport water to the spray pipe 3, and then spray water mist from the water spray head 2 from top to bottom, and at the same time, the air intake pipe 5 transports ammonia from bottom to top into the absorption tank 1, so that ammonia and water can have a larger contact area, and a stirring and dissolving mechanism is provided inside the absorption tank 1. The structure includes a first bevel gear 13, a fourth bevel gear 6, a first rotating rod 7, a second rotating rod 17, a stirring rod 8, a spiral blade 18 and a shell 9. The shell 9 is fixedly connected to the bottom of the inner wall of the absorption tank 1. The fourth bevel gear 6 is arranged on both sides of the interior of the shell 9. The top of the fourth bevel gear 6 is fixedly connected to the first rotating rod 7. The first bevel gear 13 is arranged between the two fourth bevel gears 6. The top of the first bevel gear 13 is fixedly connected to the second rotating rod 17. The first rotating rod 7 and the second rotating rod 17 are respectively supported through the top of the shell 9 through sealed bearings. The first rotating rod 7 and the second rotating rod 17 are located on the outer wall of one side of the shell 9 and are respectively fixedly connected to the stirring rod 8 and the spiral blade 18;

[0025] In the specific implementation process, it is worth pointing out that the rotation of the first bevel gear 13 and the fourth bevel gear 6 drives the second rotating rod 17 and the first rotating rod 7 to rotate, so that the stirring rod 8 and the spiral blade 18 fixedly connected to the outer wall of one side outside the shell 9 rotate, which accelerates the full dissolution of ammonia in water and improves efficiency. At the same time, the design of the shell 9 also plays a protective role to prevent the dissolved ammonia from corroding the parts inside the shell 9;

[0026] Furthermore, support legs 16 are fixedly connected to both sides of the outer wall of the absorption tank 1, and a bottom plate 15 is fixedly connected to the bottom of the support legs 16;

[0027] In the specific implementation process, it is worth pointing out that the design function of the support legs 16 is to support the absorption tank 1, and the bottom plate 15 also supports the entire device, thereby improving the stability of the entire device;

[0028] Further, the top of the bottom plate 15 is fixedly connected to a servo motor 14, and the model of the servo motor 14 is not limited. The output end of the servo motor 14 is fixedly connected to a rotating shaft 27, and the rotating shaft 27 passes through the bottom of the absorption tank 1 through a sealed bearing and extends to the inside thereof. One end of the rotating shaft 27 located inside the absorption tank 1 is fixedly connected to the bottom of the first bevel gear 13, and both sides of the first bevel gear 13 are meshed and connected to the second bevel gear 12, and the outer side of the second bevel gear 12 is fixedly connected to a connecting rod 11, and the end of the connecting rod 11 is fixedly connected to the third bevel gear 13. The purpose of such design is to start the servo motor 14, so that the rotating shaft 27 rotates, driving the first bevel gear 13, and also driving the second bevel gear 12 meshed with both sides of the first bevel gear 13, so that the connecting rod 11 fixedly connected to the outer side of the second bevel gear 12 also rotates, driving the third bevel gear 10 fixedly connected to the end of the connecting rod 11 to rotate, and finally driving the fourth bevel gear 6 meshed with the third bevel gear 10 to rotate;

[0029] In the specific implementation process, it is worth pointing out that starting the servo motor 14 causes the first bevel gear 13 and the fourth bevel gear 6 to rotate, and also drives the second rotating rod 17 and the first rotating rod 7 to rotate, thus eventually driving the stirring rod 8 and the spiral blade 18 to rotate;

[0030] Furthermore, a box body 24 is fixedly connected to the top of the bottom plate 15, a connecting pipe 22 is connected to the side of the absorption tank 1 away from the air inlet pipe 5, and the end of the connecting pipe 22 is connected to the box body 24, and a valve 25 installed on the connecting pipe 22 is provided above the connecting pipe 22. It is worth noting that a sealing flange can be installed on the connecting pipe 22 between the valve 25 and the box body 24. After the box body 24 is used to collect the dissolved ammonia water, the sealing flange can be removed to facilitate the use or storage of ammonia water by the staff. At the same time, it should be noted that the ammonia water should be stored in a cool, dry and ventilated place, away from fire and heat sources, and the container should be kept sealed. In the summer, when the temperature is high, cooling measures should be taken to prevent the ammonia water in the box body 24 from volatilizing;

[0031] In the specific implementation process, it is worth pointing out that the valve 25 is selected to be resistant to the corrosion of ammonia water and is in a closed state at the beginning. When the ammonia gas dissolves in the water to form ammonia water, the staff opens the valve 25, so that the ammonia water in the absorption tank 1 flows into the box 24 through the connecting pipe 22, so that it can be collected;

[0032] Furthermore, a filter screen 23 is fixedly connected to the inner wall of the connecting pipe 22. The material of the filter screen 23 can be a stainless steel plate mesh, which can effectively resist the corrosion of ammonia water. A breathing valve 26 is installed on the top of the box body 24. The function of the breathing valve 26 is to maintain the pressure inside the box body 24 and has a liquid sealing function. When ammonia water enters the box body 24, a part of the gas is discharged through the breathing valve 26 to keep the pressure inside the box body 24 not exceeding the set value. When ammonia water leaves the box body 24, a part of the air is inhaled through the breathing valve 26 to avoid vacuum in the box body 24.

[0033] In the specific implementation process, it is worth pointing out that the filter 23 can filter impurities in the ammonia water, which can facilitate the staff to collect relatively pure ammonia water;

[0034] Specifically, when using the ammonia tail gas absorption and recycling device, the staff allows the ammonia to enter the absorption tank 1 through the air inlet pipe 5, and at the same time turns on the water pump 4, so that the water passes through the spray pipe 3 and enters the water spray head 2 to spray water mist from top to bottom, so that the water mist and the ammonia from bottom to top are in contact with a larger area and fall into the bottom of the absorption tank 1. Through the further rotation and stirring of the stirring rod 8 and the spiral blade 18, the ammonia is fully dissolved in the water, and the dissolution efficiency is accelerated. Then the staff opens the valve 25, so that the dissolved ammonia water is filtered through the filter net 23, and then flows into the box 24 through the connecting pipe 22 for collection, so as to facilitate the subsequent processing and utilization of the ammonia water.

[0035] Embodiment 2: By Figure 1 and 2 It can be seen that an ammonia detector 19 and an alarm 21 fixedly connected to the absorption tank 1 are respectively provided on both sides of the absorption tank 1. The models of the ammonia detector 19 and the alarm 21 are not limited. The alarm 21 is electrically connected to a controller 20. The model of the controller 20 is not limited. The controller 20 is fixedly connected to the outer wall of the absorption tank 1, and the controller 20 is electrically connected to the ammonia detector 19.

[0036] In the specific implementation process, it is worth pointing out that the ammonia detector 19 and the alarm 21 form a series circuit with the controller 20 respectively, and a control device, such as a switch, should be installed according to the needs, so that the ammonia detector 19 is used to monitor the leakage of ammonia and transmit the signal to the controller 20, and the controller 20 then transmits the signal to the alarm 21 to drive the alarm 21 to sound. Of course, electronic components that must be placed should also be set between the ammonia detector 19, the alarm 21 and the controller 20, which are well-known existing technologies and will not be described in detail here;

[0037] Specifically, based on the above-mentioned embodiment 1, when there is a risk of ammonia leakage, the ammonia detector 19 will monitor the ammonia concentration in the air and transmit the alarm signal to the controller 20. The controller 20 will then transmit the alarm signal to the alarm 21, driving the alarm 21 to sound, notifying the staff to quickly come and deal with the dangerous situation.

[0038] 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 sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] 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. An ammonia tail gas absorption and recycling device, comprising an absorption tank (1), characterized in that: A water pump (4) is installed on the top of the absorption tank (1), and a spray pipe (3) is connected to the bottom of the water pump (4). The spray pipe (3) penetrates the outer wall of the absorption tank (1) and extends into the interior thereof. The spray pipe (3) is connected to a plurality of water spray heads (2) on one side located inside the absorption tank (1). An air inlet pipe (5) installed on the absorption tank (1) is provided on one side of the outer wall of the absorption tank (1), and a stirring and dissolving mechanism is provided inside the absorption tank (1); The stirring and dissolving mechanism comprises a first bevel gear (13), a fourth bevel gear (6), a first rotating rod (7), a second rotating rod (17), a stirring rod (8), a spiral blade (18) and a housing (9); The shell (9) is fixedly connected to the bottom of the inner wall of the absorption tank (1); fourth bevel gears (6) are arranged on both sides of the interior of the shell (9); the top of the fourth bevel gear (6) is fixedly connected to a first rotating rod (7); a first bevel gear (13) is arranged between the two fourth bevel gears (6); the top of the first bevel gear (13) is fixedly connected to a second rotating rod (17); the first rotating rod (7) and the second rotating rod (17) are respectively supported through the top of the shell (9) by sealed bearings; and a stirring rod (8) and a spiral blade (18) are respectively fixedly connected to the outer wall of one side of the first rotating rod (7) and the second rotating rod (17) located outside the shell (9).

2. The ammonia tail gas absorption and recycling device according to claim 1, characterized in that: Support legs (16) are fixedly connected to both sides of the outer wall of the absorption tank (1), and a bottom plate (15) is fixedly connected to the bottom of the support legs (16).

3. The ammonia tail gas absorption and recycling device according to claim 2, characterized in that: A servo motor (14) is fixedly connected to the top of the bottom plate (15); a rotating shaft (27) is fixedly connected to the output end of the servo motor (14); the rotating shaft (27) passes through the bottom of the absorption tank (1) through a sealed bearing and extends into the interior thereof; one end of the rotating shaft (27) located inside the absorption tank (1) is fixedly connected to the bottom of the first bevel gear (13); both sides of the first bevel gear (13) are meshedly connected to the second bevel gear (12); a connecting rod (11) is fixedly connected to the outer side of the second bevel gear (12); the end of the connecting rod (11) is fixedly connected to the third bevel gear (10); the third bevel gear (10) and the fourth bevel gear (6) are meshedly connected.

4. The ammonia tail gas absorption and recycling device according to claim 1, characterized in that: An ammonia detector (19) and an alarm (21) fixedly connected to the absorption tank (1) are respectively arranged on both sides of the absorption tank (1); the alarm (21) is electrically connected to a controller (20); the controller (20) is fixedly connected to the outer wall of the absorption tank (1); and the controller (20) is electrically connected to the ammonia detector (19).

5. The ammonia tail gas absorption and recycling device according to claim 2, characterized in that: The top of the bottom plate (15) is fixedly connected to a box body (24); a side of the absorption tank (1) away from the air inlet pipe (5) is connected to a connecting pipe (22); and a terminal end of the connecting pipe (22) is connected to the box body (24); and a valve (25) installed on the connecting pipe (22) is provided above the connecting pipe (22).

6. The ammonia tail gas absorption and recycling device according to claim 5, characterized in that: A filter screen (23) is fixedly connected to the inner wall of the connecting pipe (22), and a breathing valve (26) is installed on the top of the box body (24).

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