A kind of ammonium hydrocyanate absorption tower

Abstract

The invention belongs to the technical field of chemical or biological purification devices for gases, and discloses an ammonium hydrocyanate absorption tower, comprising a tower body, on which an air outlet, a liquid inlet, an air inlet and a liquid outlet are sequentially arranged, the liquid inlet is connected with an annular liquid inlet pipe, the inner circle of the liquid inlet pipe is provided with an atomizing nozzle with a spraying range covering the entire inner circle of the liquid inlet pipe; and also comprising a gas dispersion component, the gas dispersion component comprising a mounting plate fixed in the tower body, an annular channel connected with the air inlet is arranged in the mounting plate, an air guide cavity is arranged in the middle of the mounting plate, and an air guide groove connecting the annular channel and the air guide cavity is also arranged on the mounting plate; a flow diversion sleeve connected with the air guide cavity is fixed in the middle of the mounting plate, and a plurality of flow diversion holes are arranged on the outer wall of the flow diversion sleeve; and a notch for liquid to flow down is arranged on the mounting plate. The invention solves the problem that due to the arrangement of fillers in the existing absorption tower, when more liquid is introduced into the tower body, the liquid accumulates and overflows on the fillers, resulting in product leakage and reduced production.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical or biological purification devices for gases, and in particular relates to an ammonium hydrocyanate absorption tower. Background Art

[0002] During the production of hydrocyanic acid, ammonia will be mixed in the gas. Therefore, in order to ensure the purity of the prepared hydrocyanic acid, an absorption tower is needed to absorb the ammonia in the gas. The current absorption tower usually includes a tower body, with a liquid outlet at the bottom and a gas outlet at the top; a liquid inlet at the top and a gas inlet at the bottom; and a filler is also provided between the liquid inlet and the liquid outlet in the tower body. When in use, gas is introduced from the gas inlet, and liquid is added from the liquid inlet. Fillers are provided in the tower body, and the B surface of the filler is large, which can increase the gas-liquid contact area and mixing uniformity. However, with the expansion of the industry, the requirements for material output are gradually increasing. In order to improve efficiency, the amount of gas and liquid introduced per unit time will be increased. The increase in the amount of liquid will cause more liquid to accumulate on the filler, resulting in liquid flooding, which makes the material output per unit gas introduced low. Summary of the invention

[0003] The present invention aims to provide an ammonium hydrocyanate absorption tower to solve the problem that due to the arrangement of fillers in the existing absorption tower, when the output of hydrocyanic acid is large, more liquid is introduced into the tower body, the liquid accumulates on the fillers, and flooding occurs, thereby causing product leakage and reducing the output.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an ammonium hydrocyanate absorption tower, comprising a tower body, on which an air outlet, a liquid inlet, an air inlet and a liquid outlet are arranged in sequence from top to bottom, the liquid inlet is connected to an annular liquid inlet pipe, the outer ring of the liquid inlet pipe is fixed to the inner wall of the tower body, and the inner ring of the liquid inlet pipe is provided with a plurality of atomizing nozzles whose spraying range covers the inner ring of the liquid inlet pipe; it also includes a gas dispersion component, the gas dispersion component comprises a mounting plate fixed to the inside of the tower body, an annular channel connected to the air inlet is arranged in the mounting plate, an air guide cavity is arranged in the middle of the mounting plate, and a plurality of air guide grooves connecting the annular channel and the air guide cavity are also arranged on the mounting plate; a diverter sleeve connected to the air guide cavity is fixed in the middle of the top surface of the mounting plate, and a plurality of diverter holes are arranged on the outer wall of the diverter sleeve; a notch for liquid to flow down is arranged on the mounting plate.

[0005] The technical principle of this technical solution:

[0006] The gas is introduced into the tower body through the air inlet, and the liquid is introduced through the liquid inlet. After the liquid enters the liquid inlet pipe, it is atomized by the atomizing nozzle and then sprayed out to react with the gas. Moreover, the liquid sprayed by the atomizing nozzle covers the entire inner circle of the liquid inlet pipe. Therefore, when the gas flows upward to the position of the liquid inlet pipe, it can also react with the liquid to improve the absorption effect of ammonia in the gas. After the gas absorbs ammonia through the reaction of contact with the liquid, it is discharged through the air outlet at the top. The liquid that has reacted with the gas falls to the bottom of the tower body and is discharged through the liquid outlet.

[0007] When the gas is introduced, the gas passes through the annular channel, the gas guide groove and the gas guide cavity in turn and then enters the diversion sleeve, and flows out through the diversion port on the outer wall of the diversion sleeve. Since the gas movement path is long, the gas flow rate can be slowed down through energy loss in this process, thereby slowing down the gas flow rate in the tower body; and the gas flows out through the diversion holes on the outer wall, so that the gas outflow angle is horizontal and will not move up quickly, thereby increasing the contact time between the gas and the liquid and improving the absorption effect of the ammonia in the gas.

[0008] Beneficial effects of this technical solution:

[0009] 1. No packing is provided in this technical solution, so after the liquid enters the tower body, it will not accumulate on the upper part of the tower body, thereby avoiding the occurrence of flooding and not affecting the output of the product;

[0010] 2. By arranging an atomizing nozzle in the inner ring of the annular liquid inlet pipe, the liquid can be atomized by the atomizing nozzle, the contact area between the gas and the liquid is increased, and the ammonia absorption effect is improved; after the liquid is sprayed out, it will contact with the upward gas in the process of falling downward, and realize the contact reaction with the gas; and an atomized water curtain can be formed in the inner ring of the liquid inlet pipe, and a secondary contact reaction can be carried out when the gas passes through, thereby improving the ammonia absorption effect;

[0011] 3. The gas dispersion element can be set to disperse the gas, increase the diffusion range of the gas in the tower body, and then increase the contact area between the gas and the liquid, thereby improving the absorption effect of ammonia in the gas;

[0012] 4. The gas flows out through the diversion holes on the outer wall of the diversion sleeve, so that the gas flows out at a horizontal angle. Therefore, the gas will not flow upward directly and quickly, but will flow upward after being dispersed in the tower body. This can improve the uniformity of gas dispersion, increase the contact area between gas and liquid, and increase the contact amount between liquid and gas in various parts, reduce the direct falling of liquid, thereby reducing liquid waste and improving utilization.

[0013] Furthermore, a plurality of atomizing nozzles are also arranged on the upper side of the liquid inlet pipe.

[0014] Beneficial effect: The atomizing nozzle on the upper side can realize the upward spraying of liquid, so after the gas passes through the inner circle of the liquid inlet pipe, it can also contact with the liquid on the upper side to carry out a three-time contact reaction, thereby improving the absorption effect of ammonia.

[0015] Furthermore, the atomizing nozzles are evenly distributed along the circumference of the liquid inlet pipe.

[0016] Beneficial effect: The uniform distribution of atomizing nozzles can make the liquid distribution in each part relatively uniform, thereby improving the uniformity of the contact between the liquid and the gas in each part, which not only improves the effect of ammonia absorption, but also avoids liquid waste.

[0017] Furthermore, an auxiliary port is provided at the lower part of the tower body, and the auxiliary port is located between the liquid inlet and the air inlet, and a liquid guide tube extending to the inside of the tower body is connected to the auxiliary port; two annular tubes coaxially arranged with the tower body are also provided in the tower body, and the two annular tubes are overlapped, and the inner circles of the two annular tubes are provided with cross tubes connected to the annular tubes, and a connecting tube is provided in the middle of the two cross tubes, and one end of the liquid guide tube is located in the tower body and is connected to the middle of the connecting tube; a connecting rod is provided between the outer circle of the annular tube and the inner wall of the tower body, and the inner circle and outer circle of the annular tube are connected to atomizing nozzles.

[0018] Beneficial effects: by introducing liquid from the auxiliary port and the liquid guide tube, the liquid can enter the two annular tubes after entering the connecting tube, and be sprayed out through the atomizing nozzle, and quickly contact with the gas that has just entered the tower body. At this time, the ammonia content in the gas is the highest. Through the rapid and large-scale contact between the gas and the liquid, most of the ammonia in the gas can be quickly reacted, and then auxiliary absorption is performed through subsequent contact, so that the ammonia absorption effect is good. In addition, the liquid pressure in the upper part is relatively small, so the droplets are larger, which can drive the liquid downward under the action of gravity, reducing the amount of liquid carried out by the gas.

[0019] Furthermore, a liquid outlet valve is provided on the liquid outlet, and a switch for controlling the opening and closing of the liquid outlet valve is provided on the tower body.

[0020] Beneficial effects: A liquid outlet valve is set in the liquid outlet, and the liquid outlet valve is closed by the switch, so that the liquid after the reaction can be accumulated at the bottom of the liquid outlet; part of the gas will enter the lower part of the tower through the gap, and the accumulated liquid can contact the gas at the lower part of the tower to absorb the ammonia in the gas. When the liquid accumulates to a certain amount, the liquid outlet valve is opened by the switch to drain the liquid.

[0021] Furthermore, the switch is a push-button switch, and the push-button switch includes two buttons. A connecting rod is also hinged in the tower body, and a floating ball is provided at the free end of the connecting rod. The two buttons are respectively located on the upper and lower sides of the floating ball, and the floating ball is against the button at the bottom.

[0022] Beneficial effect: A float is set. During the process of liquid accumulation, the rising liquid level will drive the float to move up. When the float moves up to squeeze the button on the upper side, the switch controls the liquid outlet valve to open; when the liquid is discharged and the liquid level drops, the float moves down. When the float squeezes the button on the lower side, the switch controls the liquid outlet valve to close; the opening and closing of the liquid outlet valve can be automatically controlled according to the liquid level height.

[0023] Furthermore, an air outlet valve is provided on the air outlet.

[0024] Beneficial effect: When the outlet valve is closed, the gas will not be discharged after entering the tower body, so that the gas will accumulate in the tower body for a long time, thereby increasing the contact time with the liquid and improving the ammonia absorption effect. As the gas accumulates, the pressure in the tower body will gradually increase, so after the outlet valve is opened, the gas can be quickly discharged in a short time.

[0025] Furthermore, the air outlet valve and the liquid outlet valve are opened and closed by the same switch.

[0026] Beneficial effects: It can realize synchronous control of the opening and closing of the gas outlet valve and the liquid outlet valve. In the process of gas accumulation, the liquid is also accumulated in the tower body. The pressure in the tower body increases, which can squeeze the gas into the accumulated liquid, thereby increasing the contact effect and reaction effect between the liquid and the gas, and improving the ammonia absorption effect.

[0027] Furthermore, a liquid storage tank is provided at the bottom of the tower body, and a guide pipe is connected to the bottom of the liquid storage tank. A rotating impeller is provided in the liquid storage tank and is located below the liquid outlet; a rotating shaft penetrating the liquid storage tank and rotatably connected to the liquid storage tank is coaxially fixed to the rotating impeller, and a driving gear is fixed to one end of the rotating shaft located outside the liquid storage tank; a rotating shaft penetrating the tower body and rotatably connected to the tower body is provided at the bottom of the tower body, the rotating shaft is arranged parallel to the rotating shaft, and a driven gear meshing with the driving gear is coaxially fixed to the rotating shaft; a stirring blade is provided on one end of the rotating shaft located in the tower body.

[0028] Beneficial effect: When the liquid is discharged, the liquid impacts the rotating impeller, and through the transmission of the rotating shaft and the driving gear, the driven gear drives the rotating shaft and the stirring blades to rotate, thereby stirring the accumulated liquid and increasing the contact area between the liquid and the gas, thereby improving the ammonia absorption effect.

[0029] Furthermore, the notch is located at the outer circle of the mounting plate, and the upper surface of the mounting plate is conical.

[0030] Beneficial effect: When liquid falls onto the mounting plate, it can flow along the upper surface of the mounting plate and flow down through the gap, thereby preventing the liquid from accumulating on the upper part of the tower body and causing flooding. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a longitudinal cross-sectional view of embodiment 1 of the present invention;

[0032] Figure 2 for Figure 1 A transverse cross-sectional view of the middle mounting plate;

[0033] Figure 3 This is a schematic diagram of the structure of Example 2 of the present invention. DETAILED DESCRIPTION

[0034] The following is further described in detail through specific implementation methods:

[0035] The figure marks in the drawings of the specification include: tower body 1, air outlet 11, liquid inlet 12, auxiliary port 13, liquid guide pipe 131, air inlet 14, liquid outlet 15, liquid inlet pipe 2, atomizing nozzle 21, annular pipe 3, cross pipe 31, connecting pipe 32, mounting plate 4, air guide port 41, annular channel 42, air guide groove 43, air guide cavity 44, through hole 45, notch 46, diverter sleeve 5, diverter hole 51, button 6, connecting rod 61, float 62, liquid storage tank 7, guide pipe 71, rotating shaft 8, rotating impeller 81, driving gear 82, rotating shaft 9, stirring blade 91, driven gear 92.

[0036] Embodiment 1:

[0037] A hydrocyanic acid ammonium absorption tower, substantially as shown in the attached Figure 1 As shown, it includes a tower body 1, a gas outlet 11 is provided at the top of the tower body 1, and a gas outlet valve is provided in the gas outlet 11. A liquid inlet 12 is provided on the left side of the upper part of the tower body 1, and a liquid inlet pipe 2 connected with the liquid inlet 12 is fixed on the inner wall of the upper part of the tower body 1. The liquid inlet pipe 2 is annular, and the outer ring diameter of the liquid inlet pipe 2 is consistent with the inner wall diameter of the tower body 1. A connecting hole is provided on the left side of the outer ring of the liquid inlet pipe 2, and the connecting hole is connected with the liquid inlet 12.

[0038] The inner circle of the liquid inlet pipe 2 is evenly arranged with a plurality of atomizing nozzles 21, and the spraying range of the plurality of atomizing nozzles 21 covers the entire inner circle of the liquid inlet pipe 2; the number of atomizing nozzles 21 here is set according to actual needs, and in this embodiment, 8 atomizing nozzles 21 are set here. Eight atomizing nozzles 21 are also evenly arranged on the upper part of the liquid inlet pipe 2, and the atomizing nozzles 21 are all inclined in the direction toward the middle of the tower body 1, and the inclination angle is 10-30°, and 15° is selected in this embodiment.

[0039] An auxiliary port 13 is provided on the right side of the lower part of the tower body 1, and the auxiliary port 13 is located below the liquid inlet 12. A liquid guide tube 131 connected to the auxiliary port 13 is provided in the tower body 1. Two overlapping annular tubes 3 are also provided in the tower body 1. The annular tubes 3 are coaxially arranged with the tower body 1, and a connecting rod is welded between the annular tubes 3 and the inner wall of the tower body. The inner circles of the two annular tubes 3 are connected to a cross tube 31, and the middle parts of the two cross tubes 31 are connected to a connecting tube 32, and the left end of the liquid guide tube 131 is connected to the middle part of the connecting tube 32. Multiple atomizing nozzles 21 are provided on the inner and outer circles of the annular tubes 3, and the coverage area of ​​the liquid sprayed by the atomizing nozzles 21 is consistent with the inner circle area of ​​the cross section of the tower body 1.

[0040] An air inlet 14 is provided on the left side of the lower part of the tower body 1, and the air inlet 14 is located below the auxiliary port 13. A gas dispersion member is also provided in the tower body 1, and the gas dispersion member includes a mounting plate 4 fixed on the inner wall of the tower body 1, and the diameter of the mounting plate 4 is consistent with the inner diameter of the tower body 1. An annular channel 42 is provided in the mounting plate 4, and an air guide port 41 connecting the air inlet 14 and the annular channel 42 is provided on the left side of the mounting plate 4. An air guide cavity 44 is provided in the middle of the mounting plate 4, and the annular channel 42 wraps the air guide cavity 44. A plurality of air guide grooves 43 connecting the annular channel 42 and the air guide cavity 44 are also provided in the mounting plate 4. In this embodiment, four air guide grooves 43 are provided, and the four air guide grooves 43 are evenly arranged along the inner circle of the annular channel 42. The air guide grooves 43 gradually widen in the direction close to the air guide cavity 44, and the sum of the areas where the air guide grooves 43 and the annular channel 42 are connected is consistent with the area of ​​the air inlet 14.

[0041] A flow divider sleeve 5 with a closed top is fixed in the middle of the upper surface of the mounting plate 4. A through hole 45 is provided in the middle of the mounting plate 4 to connect the flow divider sleeve 5 with the air guide cavity 44. A plurality of flow divider holes 51 are provided on the side wall of the flow divider sleeve 5 along the circumferential direction. In this embodiment, there are 10 flow divider holes 51. The top of the flow divider sleeve 5 is also provided with a flow divider hole 51, and the number of flow divider holes 51 on the top is 2. The upper surface of the mounting plate 4 is conical, combined with Figure 2 As shown, a plurality of notches 46 are provided on the outer ring of the mounting plate 4. In this embodiment, 8 notches 46 are provided and are evenly distributed on the outer ring of the mounting plate 4. The notches 46 can connect the tower body 1 located at the upper and lower parts of the mounting plate 4 to achieve downward flow of liquid.

[0042] The bottom of the tower body 1 is provided with a liquid outlet 15, and a liquid outlet valve is provided in the liquid outlet 15. The tower body 1 is also provided with a switch for controlling the synchronous opening and closing of the liquid outlet valve and the gas outlet valve, and the switch is a button 6 type switch, and the switch includes two buttons 6. The two buttons 6 are respectively fixed on the inner circle on the left side of the tower body 1, and the two buttons 6 are both located below the mounting plate 4, and the two buttons 6 are arranged vertically.

[0043] A connecting rod 61 is hinged between two buttons 6 on the left inner circle of the tower body 1. The connecting rod 61 can swing up and down through the hinged setting. A floating ball 62 is fixed to the bottom end of the connecting rod 61. When the floating ball 62 moves up, it can press the bottom of the upper button 6; when the floating ball 62 moves down, it can press the bottom of the lower button 6. When the upper button 6 is pressed, the liquid outlet valve and the gas outlet valve are opened, and when the lower button 6 is pressed, the liquid outlet valve and the gas outlet valve are closed.

[0044] The specific implementation process is as follows:

[0045] When in use, liquid is continuously introduced into the liquid inlet 12 and the auxiliary port 13, and the liquid is sprayed into the tower body 1 through the atomizing nozzle 21, so that the tower body 1 is filled with the atomized liquid. Then, gas is introduced through the air inlet 14, and the gas enters the annular channel 42 through the air guide port 41, flows along the air guide groove 43 to the air guide cavity 44, enters the diverter sleeve 5, and finally enters the tower body 1 through the diverter hole 51. In this process, since the width of the air guide groove 43 gradually increases toward the air guide cavity 44, the flow rate of the gas gradually decreases, and the gas is introduced into the tower body 1 horizontally through the diverter hole 51, and the gas will have an initial velocity in the horizontal direction, but not an initial velocity of upward flow, so the gas will slowly flow upward, so that the gas stays in the tower body 1 for a long time, and can fully contact and react with the liquid; and the gas is evenly dispersed in the tower body 1 through the evenly distributed diverter holes 51, and can evenly contact and react with the liquid.

[0046] After the gas enters the tower body 1, it first undergoes a primary contact reaction with the falling liquid and the liquid sprayed from the atomizing nozzle 21 on the annular tube 3, and initially absorbs the ammonia contained in the gas; the liquid sprayed from the atomizing nozzle 21 on the annular tube 3 can cover the entire cross-section of the tower body 1, so the gas can fully contact the liquid. When the gas moves to the liquid inlet pipe 2, the liquid sprayed from the atomizing nozzle 21 forms a water curtain in the inner circle of the liquid inlet pipe 2, and the gas passes through the water curtain and undergoes a secondary contact reaction with the liquid. As the gas continues to move upward, it will undergo a tertiary contact reaction with the liquid sprayed from the atomizing nozzle 21 on the upper part of the liquid inlet pipe 2.

[0047] During this process, the liquid will gradually fall down and drip onto the mounting plate 4, flow toward the outer circle along the upper surface of the mounting plate 4, flow down through the notch 46, and accumulate at the bottom of the tower body 1. After the gas enters the tower body 1, it is blocked by the mounting plate 4, and most of the gas will flow upward to cause the above reaction, but part of the gas will still diffuse to the bottom of the mounting plate 4 through the notch 46. The gas below the mounting plate 4 can react with the liquid flowing down from the notch 46, and can also react with the liquid accumulated at the bottom of the tower body 1.

[0048] As the reaction continues, the liquid accumulated at the bottom of the tower body 1 gradually increases, causing the liquid level to gradually rise. During this process, the float 62 will gradually move up under the action of buoyancy. When the float 62 squeezes the button 6 on the upper side, the switch controls the liquid outlet valve and the gas outlet valve to open, and the gas and liquid are discharged. As the liquid is discharged, the liquid level gradually drops, so the float 62 will gradually move down. When the float 62 squeezes the button 6 on the lower side, the switch controls the liquid outlet valve and the gas outlet valve to close.

[0049] At this time, the liquid will accumulate at the bottom of the tower body 1, and the gas will continue to be added into the tower body 1, so that the gas will continue to accumulate in the tower body 1. At the same time, the liquid outlet valve and the gas outlet valve are closed, which will gradually increase the pressure in the tower body 1, squeezing the gas at the bottom to contact and react with the accumulated liquid. In addition, the gas can continue to contact and react with the ejected liquid, prolonging the time for the gas and liquid to contact and react, thereby improving the reaction effect.

[0050] Embodiment 2:

[0051] The difference between Example 2 and Example 1 is that Figure 3 As shown, in this embodiment, a liquid storage tank 7 is fixed at the bottom of the tower body 1. The specific configuration of the tower body 1 and the liquid storage tank 7 is that a mounting hole is provided at the top of the liquid storage tank 7, the tower body 1 is inserted into the mounting hole, and the tower body 1 and the mounting hole are welded; a guide pipe 71 communicating with the inside of the liquid storage tank 7 is provided at the lower part of the left side wall of the liquid storage tank 7. The liquid storage tank 7 is provided with a rotating shaft 8 that penetrates its right side wall and is rotatably connected thereto. A rotating impeller 81 is coaxially fixed to one end of the rotating shaft 8 located in the liquid storage tank 7. The rotating impeller 81 is located below the liquid outlet 15. When the liquid is discharged from the liquid outlet 15, the liquid impacts the rotating impeller 81 and drives the rotating impeller 81 to rotate. A driving gear 82 is coaxially fixed to one end of the rotating shaft 8 located outside the liquid storage tank 7.

[0052] The lower part of the tower body 1 is provided with a rotating shaft 9 which penetrates the right side wall of the tower body 1 and is rotatably connected to the tower body 1. The rotating shaft 9 is located below the mounting plate 4, and the rotating shaft 9 is parallel to the rotation. A driven gear 92 meshing with the driving gear 82 is coaxially fixed to the part of the rotating shaft 9 located outside the tower body 1, and a stirring blade 91 is provided on one end of the rotating shaft 9 located inside the tower body 1.

[0053] The specific implementation process is as follows:

[0054] When the liquid outlet valve is opened, the accumulated liquid is discharged from the liquid outlet 15, and the discharged liquid impacts the rotating impeller 81 to rotate, and through the transmission of the rotating shaft 8, the driving gear 82, the driven gear 92 and the rotating shaft 9, the stirring blade 91 is rotated, so that the stirring blade 91 stirs the liquid, so that the liquid will flow irregularly or splash upward, realizing a contact reaction with the gas, thereby improving the effect of the contact reaction.

[0055] For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of this patent and the practicality of the patent.

Claims

1. An ammonium hydrocyanate absorption tower, comprising a tower body, on which an air outlet, a liquid inlet, an air inlet and a liquid outlet are arranged in sequence from top to bottom, characterized in that: The liquid inlet is connected to an annular liquid inlet pipe, the outer ring of the liquid inlet pipe is fixed to the inner wall of the tower body, and the inner ring of the liquid inlet pipe is provided with a plurality of atomizing nozzles whose spraying range covers the inner ring of the liquid inlet pipe; it also includes a gas dispersion component, the gas dispersion component includes a mounting plate fixed to the inside of the tower body, an annular channel connected to the air inlet is provided in the mounting plate, an air guide cavity is provided in the middle of the mounting plate, and a plurality of air guide grooves connecting the annular channel and the air guide cavity are also provided on the mounting plate; a diverter sleeve connected to the air guide cavity is fixed in the middle of the top surface of the mounting plate, and a plurality of diverter holes are provided on the outer wall of the diverter sleeve; a notch is provided on the mounting plate for liquid to flow down; when the gas is introduced, the gas passes through the annular channel, the air guide groove and the air guide cavity in turn and then enters the diverter sleeve, and flows out through the diverter holes on the outer wall of the diverter sleeve to slow down the flow rate of the gas and make the outflow angle of the gas horizontal, and the gas flowing out at a horizontal angle through the diverter holes is dispersed in the tower body and then flows upward, thereby improving the uniformity of gas dispersion.

2. The ammonium hydrocyanate absorption tower according to claim 1, characterized in that: A plurality of atomizing nozzles are also arranged on the upper side of the liquid inlet pipe.

3. The ammonium hydrocyanate absorption tower according to claim 2, characterized in that: The atomizing nozzles are evenly distributed along the circumference of the liquid inlet pipe.

4. The ammonium hydrocyanate absorption tower according to claim 3, characterized in that: An auxiliary port is also provided at the lower part of the tower body, and the auxiliary port is located between the liquid inlet and the air inlet, and a liquid guide tube extending to the inside of the tower body is connected to the auxiliary port; two annular tubes coaxially arranged with the tower body are also provided in the tower body, and the two annular tubes are overlapped, and the inner circles of the two annular tubes are provided with cross tubes connected to the annular tubes, and a connecting tube is provided in the middle of the two cross tubes, and one end of the liquid guide tube is located in the tower body and is connected to the middle of the connecting tube; a connecting rod is provided between the outer circle of the annular tube and the inner wall of the tower body, and the inner circle and outer circle of the annular tube are connected with atomizing nozzles.

5. An ammonium hydrocyanate absorption tower according to any one of claims 1 to 4, characterized in that: A liquid outlet valve is provided on the liquid outlet, and a switch for controlling the opening and closing of the liquid outlet valve is provided on the tower body.

6. The ammonium hydrocyanate absorption tower according to claim 5, characterized in that: The switch is a push-button switch, and the push-button switch includes two buttons. A connecting rod is also hinged in the tower body, and a floating ball is arranged at the free end of the connecting rod. The two buttons are respectively located on the upper and lower sides of the floating ball, and the floating ball is against the button at the bottom.

7. The ammonium hydrocyanate absorption tower according to claim 6, characterized in that: An air outlet valve is arranged on the air outlet.

8. The ammonium hydrocyanate absorption tower according to claim 7, characterized in that: The air outlet valve and the liquid outlet valve are opened and closed by the same switch.

9. The ammonium hydrocyanate absorption tower according to claim 8, characterized in that: A liquid storage tank is provided at the bottom of the tower body, and a guide pipe is connected to the bottom of the liquid storage tank. A rotating impeller is provided in the liquid storage tank and is located below the liquid outlet; a rotating shaft that penetrates the liquid storage tank and is rotatably connected to the liquid storage tank is coaxially fixed on the rotating impeller, and a driving gear is fixed on one end of the rotating shaft located outside the liquid storage tank; a rotating shaft that penetrates the tower body and is rotatably connected to the tower body is provided at the bottom of the tower body, the rotating shaft is arranged parallel to the rotating shaft, and a driven gear meshing with the driving gear is coaxially fixed on the rotating shaft; a stirring blade is provided on one end of the rotating shaft located in the tower body.

10. The ammonium hydrocyanate absorption tower according to claim 9, characterized in that: The notch is located at the outer circle of the mounting plate, and the upper surface of the mounting plate is conical.

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