Spray tower for laboratory

Abstract

The utility model discloses a spray tower for a laboratory, which comprises a treatment tower, a reaction tank is arranged in the treatment tower, and the left side of the treatment tower is communicated with a gas inlet pipe. Through the arrangement of the stirring blades, waste gas is introduced into the gas inlet pipe and enters the reaction tank to be in contact reaction with absorption liquid, the rotating motor is started to drive the driving bevel gear to rotate, and the driving bevel gear is meshed with the transmission bevel gear on the right side to drive the transmission rod to rotate; the transmission rod rotates to drive a transmission bevel gear on the left side of the transmission rod to be meshed with a driven bevel gear, so that the driven bevel gear drives a rotating rod to rotate, the rotating rod rotates to drive stirring blades on the two sides to rotate to enable absorption liquid in the reaction tank to form vortex, and the vortex enables waste gas bubbles in the absorption liquid to spirally rise; therefore, the reaction time of bubbles in the absorption liquid is prolonged, the reaction is more sufficient, the treatment efficiency of toxic gas is greatly improved, the use of a user is facilitated, and the practicability of the spray tower is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray towers, in particular to a spray tower for laboratories. Background Art

[0002] The spray tower is a type of waste gas treatment equipment. Such purification equipment can be used in industrial waste gas treatment. The acid mist waste gas is introduced into the purification tower through the air duct. After passing through the packing layer, the waste gas and the sodium hydroxide absorption liquid undergo full gas-liquid two-phase contact, absorption and neutralization reaction. After the acid mist waste gas is purified, it is dehydrated and defogged by the demister plate and then discharged into the atmosphere by the fan. The absorption liquid is pressurized by a water pump at the bottom of the tower and sprayed down at the top of the tower, and finally flows back to the bottom of the tower for recycling.

[0003] Since most of the waste gas generated during the experiment is toxic and harmful, when the existing spray tower treats laboratory waste gas, the waste gas stays in the spray tower for too short a time, and the neutralization reaction with the absorption liquid is not sufficient. It is necessary to reduce the flow rate of the waste gas for sufficient reaction, resulting in a significant decrease in the treatment efficiency of toxic and harmful gases, which is inconvenient for users and reduces the practicality of the spray tower. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a spray tower for laboratory use, which has the advantage of a long residence time, and solves the problem that when the existing spray tower treats laboratory exhaust gas, the exhaust gas stays in the spray tower for too short a time, and the neutralization reaction with the absorption liquid is not sufficient, and the flow rate of the exhaust gas needs to be reduced for sufficient reaction, resulting in a significant decrease in the treatment efficiency of toxic and harmful gases.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spray tower for laboratory use, comprising a treatment tower, a reaction tank is provided inside the treatment tower, an air inlet pipe is connected to the left side of the treatment tower, the right end of the air inlet pipe penetrates into the interior of the reaction tank and is connected to an air outlet pipe, a perforated plate is fixedly connected to the interior of the reaction tank, a filling layer is arranged on the top of the perforated plate, a rotating rod is rotatably connected to the bottom of the perforated plate through a bearing, stirring blades are fixedly connected to both sides of the lower surface of the rotating rod, a driven bevel gear is sleeved on the upper surface of the rotating rod, the driven bevel gear is fixedly connected to the rotating rod, a transmission rod is rotatably connected to the side wall of the treatment tower through a bearing, the left end of the transmission rod penetrates into the interior of the reaction tank, and the transmission The right end of the rod extends to the right side of the processing tower, and both ends of the transmission rod are fixedly connected with transmission bevel gears, and the transmission bevel gear at the left end is meshed with the driven bevel gear. A connecting plate is fixedly connected to the right side of the processing tower, and a rotating motor is fixedly connected to the top of the connecting plate. The output end of the rotating motor is fixedly connected with an active bevel gear, and the active bevel gear is meshed with the transmission bevel gear at the right end of the transmission rod. A fixed plate is fixedly connected to the top of the left side of the processing tower, and a water pump is fixedly connected to the top of the fixed plate. The output end of the water pump is connected with a shunt pipe, and the shunt pipe runs through the interior of the reaction tank. A plurality of nozzles are connected to the bottom of the shunt pipe. An exhaust pipe is fixedly connected to the top of the processing tower, and the exhaust pipe is connected to the reaction tank.

[0006] As a preferred embodiment of the utility model, a stepper motor is fixedly connected to the back side of the exhaust duct, the output end of the stepper motor passes through the interior of the exhaust duct and is fixedly connected to a rotating shaft, a baffle is fixedly connected to the left side of the rotating shaft, a gas detector is fixedly connected to the side wall of the exhaust duct, a controller is fixedly connected to the left side of the exhaust duct, an air pump seat is fixedly connected to the right side of the top of the treatment tower, an air pump is fixedly connected to the top of the air pump seat, the input end of the air pump is connected to an exhaust pipe, the left end of the exhaust pipe passes through the surface of the inner wall of the exhaust duct and is connected thereto, the output end of the air pump is connected to a circulation pipe, the bottom end of the circulation pipe passes through the interior of the reaction tank, and the stepper motor, gas detector and air pump are all connected to the controller signal.

[0007] As a preferred embodiment of the utility model, a protective cover is fixedly connected to the right side of the processing tower, and the connecting plate, the rotating motor, the active bevel gear and the transmission rod are all located inside the protective cover.

[0008] As a preferred embodiment of the utility model, a rotating bracket is fixedly connected to the bottom of the perforated plate, and the rotating bracket is sleeved on the surface of the transmission rod and rotatably connected thereto.

[0009] As a preferred embodiment of the present invention, the bearing on the surface of the transmission rod is a sealed bearing.

[0010] As a preferred embodiment of the present invention, a plurality of circular holes are provided on the surface of the air outlet pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model sets stirring blades, firstly passes the exhaust gas into the air inlet pipe, and the exhaust gas enters the reaction tank through the air outlet pipe to form bubbles, contact and react with the absorption liquid, and at the same time starts the rotating motor, the rotating motor drives the active bevel gear to rotate, the active bevel gear is engaged with the transmission bevel gear on the right side to drive the transmission rod to rotate, the transmission rod rotates to drive the transmission bevel gear on the left side to engage with the driven bevel gear, so that the driven bevel gear drives the rotating rod to rotate, the rotating rod rotates to drive the stirring blades on both sides to rotate so that the absorption liquid inside the reaction tank forms a vortex, and the vortex causes the exhaust gas bubbles inside the absorption liquid to spiral up, thereby increasing the reaction time of the bubbles inside the absorption liquid, making the reaction more sufficient, greatly improving the treatment efficiency of the toxic gas, facilitating the use of the user, and improving the practicality of the spray tower.

[0013] 2. The utility model sets a baffle. When the toxic gas is discharged through the exhaust pipe after treatment, the gas detector detects the treated gas. When the exhaust gas meets the emission standards, the controller receives the signal to control the stepper motor to start. The stepper motor drives the shaft to rotate 90 degrees, so that the baffle flips and closes the exhaust pipe to discharge the treated exhaust gas. When the gas detector detects that the exhaust gas does not meet the standards, the stepper motor does not start, and the air pump starts to extract the exhaust gas from the exhaust pipe and pump it into the reaction tank through the circulation pipe for secondary filtration, thereby avoiding the problem of environmental pollution caused by toxic gases not meeting the emission standards, and further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a front cross-sectional schematic diagram of the structural treatment tower of the utility model;

[0016] Figure 3 It is a front view cross-sectional schematic diagram of the exhaust duct structure of the utility model;

[0017] Figure 4 The utility model structure Figure 2 A is an enlarged schematic diagram.

[0018] In the figure: 1. treatment tower; 2. reaction tank; 3. air inlet pipe; 4. air outlet pipe; 5. perforated plate; 6. rotating rod; 7. stirring blade; 8. driven bevel gear; 9. transmission rod; 10. transmission bevel gear; 11. connecting plate; 12. rotating motor; 13. driving bevel gear; 14. fixing plate; 15. water pump; 16. diverter pipe; 17. nozzle; 18. exhaust pipe; 19. filling layer; 20. stepping motor; 21. rotating shaft; 22. baffle; 23. gas detector; 24. controller; 25. air pump seat; 26. air pump; 27. exhaust pipe; 28. circulation pipe; 29. ​​protective cover; 30. rotating support. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figures 1 to 4 As shown, a spray tower for laboratory use comprises a treatment tower 1, a reaction tank 2 is provided inside the treatment tower 1, an air inlet pipe 3 is connected to the left side of the treatment tower 1, the right end of the air inlet pipe 3 penetrates into the interior of the reaction tank 2 and is connected to an air outlet pipe 4, a perforated plate 5 is fixedly connected to the interior of the reaction tank 2, a filling layer 19 is arranged on the top of the perforated plate 5, a rotating rod 6 is rotatably connected to the bottom of the perforated plate 5 through a bearing, stirring blades 7 are fixedly connected to both sides of the lower surface of the rotating rod 6, a driven bevel gear 8 is sleeved on the upper surface of the rotating rod 6, and the driven bevel gear 8 is fixedly connected to the rotating rod 6, a transmission rod 9 is rotatably connected to the side wall of the treatment tower 1 through a bearing, the left end of the transmission rod 9 penetrates into the interior of the reaction tank 2, and the right end of the transmission rod 9 extends to the right side of the treatment tower 1, and the transmission rod 9 Both ends of the treatment tower 1 are fixedly connected with transmission bevel gears 10, and the transmission bevel gear 10 at the left end is meshed with the driven bevel gear 8. A connecting plate 11 is fixedly connected to the right side of the treatment tower 1, and a rotating motor 12 is fixedly connected to the top of the connecting plate 11. An active bevel gear 13 is fixedly connected to the output end of the rotating motor 12, and the active bevel gear 13 is meshed with the transmission bevel gear 10 at the right end of the transmission rod 9. A fixed plate 14 is fixedly connected to the top of the left side of the treatment tower 1, and a water pump 15 is fixedly connected to the top of the fixed plate 14. The output end of the water pump 15 is connected with a shunt pipe 16, which runs through the interior of the reaction tank 2, and a plurality of nozzles 17 are connected to the bottom of the shunt pipe 16. An exhaust pipe 18 is fixedly connected to the top of the treatment tower 1, and the exhaust pipe 18 is connected to the reaction tank 2.

[0021] refer to Figure 1 and Figure 3A stepper motor 20 is fixedly connected to the back of the exhaust pipe 18, and the output end of the stepper motor 20 passes through the interior of the exhaust pipe 18 and is fixedly connected to a rotating shaft 21. A baffle 22 is fixedly connected to the left side of the rotating shaft 21. A gas detector 23 is fixedly connected to the side wall of the exhaust pipe 18, and a controller 24 is fixedly connected to the left side of the exhaust pipe 18. An air pump seat 25 is fixedly connected to the right side of the top of the treatment tower 1, and an air pump 26 is fixedly connected to the top of the air pump seat 25. The input end of the air pump 26 is connected to an exhaust pipe 27, and the left end of the exhaust pipe 27 passes through the surface of the inner wall of the exhaust pipe 18 and is connected thereto. The output end of the air pump 26 is connected to a circulation pipe 28, and the bottom end of the circulation pipe 28 passes through the interior of the reaction tank 2. The stepper motor 20, the gas detector 23 and the air pump 26 are all connected to the controller 24 signal.

[0022] As a technical optimization scheme of the utility model, through the setting of the baffle 22, when the toxic gas is discharged through the exhaust pipe 18 after treatment, the gas detector 23 detects the treated gas at this time. When the exhaust gas meets the emission standards, the controller 24 receives the signal to control the stepper motor 20 to start, and the stepper motor 20 drives the rotating shaft 21 to rotate 90°, so that the baffle 22 flips and closes the exhaust pipe 27 to discharge the treated exhaust gas. When the gas detector 23 detects that the exhaust gas does not meet the standards, the stepper motor 20 does not start, and the air pump 26 starts to extract the exhaust gas from the exhaust pipe 27 and pump it into the interior of the reaction tank 2 through the circulation pipe 28 for secondary filtration, thereby avoiding the problem of environmental pollution caused by toxic gases not meeting the emission standards, and further improving the practicality of the device.

[0023] refer to Figure 1 and Figure 2 A protective cover 29 is fixedly connected to the right side of the processing tower 1 , and the connecting plate 11 , the rotating motor 12 , the active bevel gear 13 and the transmission rod 9 are all located inside the protective cover 29 .

[0024] As a technical optimization solution of the utility model, the provision of the protective cover 29 avoids the problem that the right transmission bevel gear 10 and the active bevel gear 13 are exposed to the outside and may be accidentally touched by the staff, thereby causing a safety accident.

[0025] refer to Figure 2 and Figure 4 The bottom of the perforated plate 5 is fixedly connected with a rotating bracket 30, which is sleeved on the surface of the transmission rod 9 and rotatably connected thereto.

[0026] As a technical optimization solution of the utility model, the left end of the transmission rod 9 is supported by the setting of the transfer support 30, so that the transmission rod 9 will not shake when rotating, causing serious wear of the transmission bevel gear 10 and the driven bevel gear 8, thereby reducing the service life of the driven bevel gear 8 and the transmission bevel gear 10.

[0027] refer to Figure 2 The bearing on the surface of the transmission rod 9 is a sealed bearing.

[0028] As a technical optimization solution of the utility model, the problem of environmental pollution caused by direct leakage of toxic gases through the bearings is avoided by setting the sealed bearings.

[0029] refer to Figure 2 A plurality of circular holes are provided on the surface of the air outlet pipe 4.

[0030] As a technical optimization solution of the utility model, through the provision of circular holes, the poisonous gas is dispersed into smaller bubbles through the circular holes, so that the contact with the absorption liquid is more sufficient and uniform, further improving the treatment efficiency.

[0031] The working principle and use process of the utility model are as follows: when in use, the user first pours the absorption liquid into the reaction tank 2, and makes the absorption liquid cover the stirring blade 7, and at the same time connects the input end of the water pump 15 with the absorption liquid storage device, and then starts the water pump 15 to spray the absorption liquid to the filling layer 19 through the nozzle 17, and then the exhaust gas can be passed into the air inlet pipe 3, and the exhaust gas is dispersed into smaller bubbles through the air outlet pipe 4 to react with the absorption liquid, and at the same time starts the rotating motor 12, and the rotating motor 12 drives the active bevel gear 13 to rotate, and the active bevel gear 13 is engaged with the transmission bevel gear 10 on the right side to drive the transmission rod 9 to rotate, and the transmission rod 9 rotates to drive the transmission bevel gear 10 on the left side to engage with the driven bevel gear 8, so that the driven bevel gear 8 drives the rotating rod 6 to rotate, and the rotating rod 6 rotates to drive the stirring blades 7 on both sides to rotate so that the absorption liquid inside the reaction tank 2 forms The eddy current causes the exhaust gas bubbles inside the absorption liquid to spiral up, thereby increasing the reaction time of the bubbles inside the absorption liquid and making the reaction more complete. The gas then passes through the moistened filling layer 19 for gas-liquid reaction and is subsequently discharged into the exhaust pipe 18 for detection by the gas detector 23. When the exhaust gas meets the emission standards, the controller 24 receives a signal to control the stepper motor 20 to start, and the stepper motor 20 drives the rotating shaft 21 to rotate 90°, so that the baffle 22 flips and closes the exhaust pipe 27 to discharge the treated exhaust gas. When the gas detector 23 detects that the exhaust gas does not meet the standards, the stepper motor 20 does not start, and the air pump 26 starts to extract the exhaust gas from the exhaust pipe 27 and pump it into the interior of the reaction tank 2 through the circulation pipe 28 for secondary filtration, thereby avoiding the problem of environmental pollution caused by toxic gases not meeting the emission standards.

[0032] 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.

[0033] 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 laboratory spray tower, comprising a treatment tower (1), characterized in that: A reaction tank (2) is provided inside the treatment tower (1), an air inlet pipe (3) is connected to the left side of the treatment tower (1), the right end of the air inlet pipe (3) penetrates into the interior of the reaction tank (2) and is connected to the air outlet pipe (4), a perforated plate (5) is fixedly connected to the interior of the reaction tank (2), a filling layer (19) is arranged on the top of the perforated plate (5), a rotating rod (6) is rotatably connected to the bottom of the perforated plate (5) via a bearing, stirring blades (7) are fixedly connected to both sides of the lower surface of the rotating rod (6), a driven bevel gear (8) is sleeved on the upper surface of the rotating rod (6), and the driven bevel gear (8) is fixedly connected to the rotating rod (6), a transmission rod (9) is rotatably connected to the side wall of the treatment tower (1) via a bearing, the left end of the transmission rod (9) penetrates into the interior of the reaction tank (2), the right end of the transmission rod (9) extends to the right side of the treatment tower (1), and both ends of the transmission rod (9) are fixedly connected to A transmission bevel gear (10), the transmission bevel gear (10) at the left end is meshed with a driven bevel gear (8); a connecting plate (11) is fixedly connected to the right side of the processing tower (1); a rotating motor (12) is fixedly connected to the top of the connecting plate (11); an active bevel gear (13) is fixedly connected to the output end of the rotating motor (12); the active bevel gear (13) is meshed with the transmission bevel gear (10) at the right end of the transmission rod (9); a fixing plate (14) is fixedly connected to the top of the left side of the processing tower (1); a water pump (15) is fixedly connected to the top of the fixing plate (14); the output end of the water pump (15) is connected to a shunt pipe (16); the shunt pipe (16) penetrates into the interior of the reaction tank (2); the bottom of the shunt pipe (16) is connected to a plurality of nozzles (17); an exhaust pipe (18) is fixedly connected to the top of the processing tower (1); the exhaust pipe (18) is connected to the reaction tank (2).

2. A laboratory spray tower according to claim 1, characterized in that: A stepper motor (20) is fixedly connected to the back of the exhaust pipe (18); an output end of the stepper motor (20) penetrates into the interior of the exhaust pipe (18) and is fixedly connected to a rotating shaft (21); a baffle (22) is fixedly connected to the left side of the rotating shaft (21); a gas detector (23) is fixedly connected to the side wall of the exhaust pipe (18); a controller (24) is fixedly connected to the left side of the exhaust pipe (18); and an air pump seat (25) is fixedly connected to the right side of the top of the treatment tower (1). The top of the air pump seat (25) is fixedly connected to an air pump (26), the input end of the air pump (26) is connected to an exhaust pipe (27), the left end of the exhaust pipe (27) penetrates through the surface of the inner wall of the exhaust pipe (18) and is connected thereto, the output end of the air pump (26) is connected to a circulation pipe (28), the bottom end of the circulation pipe (28) penetrates through the interior of the reaction tank (2), and the stepping motor (20), the gas detector (23) and the air pump (26) are all connected to the controller (24) by signal.

3. A laboratory spray tower according to claim 1, characterized in that: A protective cover (29) is fixedly connected to the right side of the processing tower (1), and the connecting plate (11), the rotating motor (12), the active bevel gear (13) and the transmission rod (9) are all located inside the protective cover (29).

4. A laboratory spray tower according to claim 1, characterized in that: A rotating bracket (30) is fixedly connected to the bottom of the perforated plate (5), and the rotating bracket (30) is sleeved on the surface of the transmission rod (9) and is rotatably connected thereto.

5. A laboratory spray tower according to claim 1, characterized in that: The bearing on the surface of the transmission rod (9) is a sealed bearing.

6. A laboratory spray tower according to claim 1, characterized in that: A plurality of circular holes are provided on the surface of the air outlet pipe (4).

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