A water washing device for preparing MTBE from isobutylene

Abstract

The present invention relates to the technical field of chemical water washing, and in particular to a water washing device for preparing MTBE from isobutylene. It comprises a frame, the frame is fixedly connected with a water washing shell, a motor is installed on the side of the water washing shell away from the frame, a water pump is installed on the frame, the water pump is connected with a liquid inlet pipe, the lower side of the frame is fixedly connected with an air inlet pipe, the water washing shell is connected with a liquid outlet pipe, the output shaft of the motor is fixedly connected with a rotating shaft rotatably connected with the water washing shell through a coupling, the rotating shaft is provided with a cavity and a first through hole of an annular array on the side close to the air inlet pipe, the water washing shell is rotatably connected with a rotating shell fixedly connected with the rotating shaft, and the rotating shaft is fixedly connected with a blocking member fixedly connected with the rotating shell. The present invention blocks the mixed gas by a blocking member, thereby increasing the distance that the mixed gas moves in the water washing shell, thereby prolonging the contact time between the mixed gas and the water mist, and improving the effect of water washing the mixed gas.

Description

Technical Field

[0001] The invention relates to the technical field of chemical water washing, in particular to a water washing device for preparing MTBE from isobutylene. Background Art

[0002] MTBE stands for methyl tert-butyl ether. It is a transparent, colorless, high-octane liquid compound. As an important chemical raw material, MTBE is mainly used as a gasoline additive to increase the octane number of gasoline and reduce exhaust emissions. MTBE is usually produced by reacting isobutylene and methanol in a strong acid environment. Since the MTBE (mixed gas) prepared in this way is not pure, it is necessary to wash the MTBE with water to eliminate the unreacted methanol remaining in the MTBE.

[0003] The existing water washing technology usually just directly introduces MTBE (mixed gas) into the water washing device, and then the mixed gas moves freely upward in the water washing device and contacts with the water mist from top to bottom. Since there are no obstacles in the water washing device, the mixed gas moves straight upward. In this way, the movement distance of MTBE (mixed gas) in the water washing process is short, and it is difficult to fully contact with the water mist, which makes it difficult to completely remove the methanol in MTBE (mixed gas), and ultimately reduces the water washing effect on MTBE (mixed gas). Summary of the invention

[0004] In order to overcome the shortcomings of the existing water washing technology in the above technical background that MTBE (mixed gas) is difficult to fully contact with water mist and methanol in MTBE (mixed gas) is difficult to be completely removed, the present invention provides a water washing device for preparing MTBE from isobutylene.

[0005] The technical scheme is as follows: A water washing device for preparing MTBE from isobutylene, comprising a frame, the frame is fixedly connected to a water washing shell, a motor is installed on the side of the water washing shell away from the frame, a water pump is installed on the frame, the water pump is connected to a liquid inlet pipe, an air inlet pipe is fixedly connected to the lower side of the frame, an air outlet pipe is connected to the upper side of the water washing shell, and a liquid outlet pipe is connected to the lower side of the water washing shell. The output shaft of the motor is fixedly connected to a rotating shaft rotatably connected to the water washing shell through a coupling, and a cavity and a first through hole of an annular array are arranged on the side of the rotating shaft close to the air inlet pipe, the first through hole is connected to the cavity, and the The cavity on the rotating shaft is communicated with the air intake pipe, the water washing shell is rotatably connected with a rotating shell fixed to the rotating shaft, the rotating shell is provided with a second through hole in an annular array, the water pump is communicated and matched with the adjacent second through holes on the rotating shell through an intermediate tube, an atomizer is installed in the intermediate tube, the rotating shell is fixed with a uniformly arranged first set, the rotating shaft is fixed with a blocking member fixed to the rotating shell, the blocking member is in contact with the water washing shell, the blocking member is provided with a cavity communicated with the rotating shell, the blocking member is provided with uniformly arranged first holes, and the first holes are communicated with the cavity.

[0006] Preferably, the first hole is located on the upper side of the blocking member, so as to evenly distribute the atomized water entering the water washing shell.

[0007] Preferably, the blocking member is spiral-shaped, and the vertical movement speed of the spiral region thereof caused by the rotation of the blocking member is greater than the falling speed of the water mist, so as to prevent the water mist from contacting the upper side of the blocking member.

[0008] Preferably, an air distribution disk is fixedly connected to the side of the rotating shaft away from the rotating shell, and the air distribution disk is rotatably connected to the water washing shell. The air distribution disk is fixedly connected to a uniformly arranged second sleeve, and the second sleeve is provided with a ring-shaped array of second holes, and the second holes are communicated with the air distribution disk. A connecting sleeve is rotatably connected to the end of the rotating shaft close to the air distribution disk, and the connecting sleeve is fixedly connected to and communicated with the air inlet pipe, and the connecting sleeve is communicated with the cavity on the rotating shaft.

[0009] Preferably, the opposite ends of the second holes of the same second set of annular arrays are inclined toward the direction close to the air inlet pipe, so as to guide the passing water.

[0010] Preferably, it also includes an adjusting mechanism for adjusting the water pump power, the adjusting mechanism is arranged on a side of the frame away from the motor, the adjusting mechanism includes a moving part, the intake pipe is provided with a connecting hole, the moving part is slidably connected to the connecting hole on the intake pipe, the moving part is provided with a first limiting groove, the frame is slidably connected with a moving rod, the water pump is provided with an adjusting button, the adjusting button is fixedly connected to the moving rod, an end of the moving rod close to the moving part is fixedly connected with a first limiting part, the first limiting part is provided with a limiting protrusion, the limiting protrusion slides and limits with the first limiting groove, the moving part is fixedly connected with a moving plate, the moving plate is slidably connected to the intake pipe, the moving plate is provided with a third through hole, the moving plate is fixedly connected with a sliding rod in an annular array, the sliding rod is slidably connected to the intake pipe, and a first elastic element of an annular array is fixedly connected between the moving plate and the intake pipe.

[0011] Preferably, the projection of the stirring member on the horizontal plane on the side close to the air distribution plate is an evenly arranged arc, which is used to transfer the water scraped by the stirring member to the adjacent second set.

[0012] Preferably, the transmission assembly includes a fixed rod, which is fixedly connected to a side of the water washing shell close to the air distribution plate, the fixed rod is slidably connected to a sliding member, a ball is ball-connected on a side of the sliding member away from the air distribution plate, the ball is extruded and matched with the blocking member, a second elastic element is fixedly connected between the sliding member and the fixed rod, the second ring is rotatably connected to a second limiting member, the second limiting member is fixedly connected to the sliding member, the second ring is provided with a limiting protrusion in an annular array, a side of the rotating shaft close to the second ring is provided with a second limiting groove in an annular array, the second limiting groove is limitedly matched with an adjacent limiting protrusion, the side of the second ring close to the first ring is fixedly connected to an extrusion member in an annular array, the extrusion member is slidably connected to the first ring, and a third elastic element is fixedly connected between the extrusion member and the first ring.

[0013] Preferably, the second limiting groove is composed of a vertical first groove and an inclined second groove connected together, the first groove is located on the upper side of the adjacent second groove, and the second groove is used to enable the second ring to rotate relative to the rotating shaft.

[0014] Compared with the prior art, the present invention has at least the following advantages: the present invention blocks the mixed gas by a blocking member, thereby increasing the distance the mixed gas moves in the water washing shell, thereby extending the contact time between the mixed gas and the water mist, and improving the effect of water washing the mixed gas; at the same time, the mixed gas is guided by the blocking member so that the mixed gas has a horizontal movement tendency, thereby increasing the intensity of the relative movement between the mixed gas and the water mist, increasing the contact area between the two, and thereby improving the water washing effect of the mixed gas; the rotating blocking member is used to avoid the water mist, thereby preventing the water mist from condensing on the blocking member, reducing the contact area between the mixed gas, and thereby improving the water washing effect and water washing efficiency of the mixed gas; at the same time, the water mist entering the water washing shell moves downward in a "raining" manner, thereby ensuring the contact area between the water mist and the mixed gas, and improving the effect and efficiency of water washing the mixed gas; the mixed gas exiting the second hole is caused to move upward in the water washing shell in an overall spiral shape by the rotating second set, thereby increasing the diffusion degree and distribution uniformity of the mixed gas in the water washing shell, thereby increasing the contact area between the mixed gas and the water mist, and improving the The effect of water washing of mixed gas is improved; the limiting convex column on the first limiting member is squeezed by the first limiting groove, thereby changing the position of the adjusting button on the water pump, thereby adjusting the power of the water pump, so that the amount of water mist entering the water washing shell matches the amount of mixed gas, thereby ensuring that the amount of water used is reduced and the cost is reduced under the premise of high-standard water washing of the mixed gas; the mixed gas in the adjacent area is stirred by the rotating stirring member, so that the mixed gas is evenly distributed in the water washing shell, thereby increasing the contact area between the mixed gas and the water mist, and improving the water washing effect of the mixed gas; The second groove on the second limiting groove is used to squeeze the adjacent limiting protrusions on the second ring, so that the stirring element scrapes the adjacent area on the upper side of the gas distribution disk, and transfers the condensed water droplets on the gas distribution disk to the adjacent second set, so as to avoid the particulate impurities in the methanol aqueous solution from adhering to the gas distribution disk, thereby affecting the normal progress of the water washing work, and by making the stirring element and the gas distribution disk rotate in opposite directions, the mixed gas initially entering the water washing shell is further stirred, thereby improving the uniformity of the mixed gas in the water washing shell, making the mixed gas fully contact with the water mist, and thereby improving the water washing effect on the mixed gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the water washing shell and its internal parts of the present invention;

[0017] Figure 3 It is a three-dimensional structural cross-sectional view of the water washing shell and its upper parts of the present invention;

[0018] Figure 4It is a schematic diagram of the three-dimensional structure when the water washing shell and the rotating shaft of the present invention rotate relative to each other;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure when the air intake pipe and the movable plate of the present invention slide relative to each other;

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the frame and the moving rod of the present invention when relative sliding occurs;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the present invention when the rotating shaft drives the blocking member to rotate together;

[0022] Figure 8 It is a schematic diagram of the three-dimensional structure when the water washing shell and the air distribution plate of the present invention rotate relative to each other;

[0023] Fig. 9 It is a schematic diagram of the three-dimensional structure when the fixed rod and the sliding member of the present invention slide relative to each other;

[0024] Fig.10 It is a three-dimensional structural cross-sectional view of the second ring and the parts thereon of the present invention;

[0025] Fig.11 It is a three-dimensional structural exploded view of the rotating shaft and some parts on it of the present invention.

[0026] The markings of the components in the accompanying drawings are as follows: 1-frame, 2-wash shell, 3-motor, 4-water pump, 501-liquid inlet pipe, 502-air inlet pipe, 6-air outlet pipe, 7-liquid outlet pipe, 8-rotating shaft, 9-rotating shell, 10-first set, 11-blocking member, 12-cavity, 13-first hole, 1401-gas distribution plate, 1402-second set, 1403-second hole, 1404-connecting sleeve, 1501-moving member, 1502-first limiting groove, 1503- Moving rod, 1504-adjusting button, 1505-first limiting member, 1506-moving plate, 1507-sliding rod, 1508-first elastic element, 1601-first ring, 1602-stirring member, 1603-second ring, 1701-fixing rod, 1702-sliding member, 1703-ball, 1704-second elastic element, 1705-second limiting member, 1706-second limiting groove, 1707-extrusion member, 1708-third elastic element. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0028] The existing water washing technology usually just directly introduces MTBE (mixed gas) into the water washing device, and the mixed gas moves vertically upward in the water washing device. In this way, the movement distance of MTBE (mixed gas) during the water washing process is short, and it is difficult to fully contact with the water mist, which makes it difficult to completely remove the methanol in MTBE (mixed gas), and ultimately reduces the water washing effect on MTBE (mixed gas).

[0029] Example 1: A water washing device for preparing MTBE from isobutylene, such as Figure 1-Figure 4 As shown, it includes a frame 1, a water washing shell 2 is fixedly connected to the upper part of the frame 1, a motor 3 is installed on the upper side of the water washing shell 2, a water pump 4 is installed on the left part of the upper side of the frame 1, the water pump 4 is connected to a liquid inlet pipe 501, the liquid inlet pipe 501 is connected to an external water tank, an air inlet pipe 502 is fixedly connected to the lower side of the frame 1, the right part of the upper side of the water washing shell 2 is connected to an air outlet pipe 6, the right part of the lower side of the water washing shell 2 is connected to a liquid outlet pipe 7, a solenoid valve is installed in the liquid outlet pipe 7, the output shaft of the motor 3 is fixedly connected to a rotating shaft 8 rotatably connected to the water washing shell 2 through a coupling, a cavity connected to the air inlet pipe 502 and four first through holes in an annular array are provided on the lower side of the rotating shaft 8, the first through hole is connected to the cavity, a rotating shell 9 fixed to the rotating shaft 8 is rotatably connected to the upper side of the water washing shell 2, the rotating shell 9 is provided with a plurality of second through holes in an annular array, the water pump 4 is connected to the adjacent second through holes on the rotating shell 9 through an intermediate pipe, so as to Water mist is injected into the rotating shell 9 during the rotation process, an atomizer is installed in the middle tube, the rotating shell 9 is fixedly connected with several evenly arranged first sets 10, and the middle and upper part of the rotating shaft 8 is fixedly connected with a blocking member 11 fixed to the rotating shell 9. The blocking member 11 is spiral, and the vertical movement speed of the spiral area on it caused by the rotation of the blocking member 11 is greater than the falling speed of the water mist, preventing the water mist from condensing on the upper side of the blocking member 11. At the same time, the spiral blocking member 11 is also used to increase the distance that the mixed gas moves in the water washing shell 2, thereby extending the contact time between the mixed gas and the water mist, and then improving the water washing effect on the mixed gas. The blocking member 11 is in contact with the water washing shell 2, and the blocking member 11 is provided with a cavity 12 connected to the rotating shell 9. The upper side surface of the blocking member 11 is provided with several evenly arranged first holes 13, and the first hole 13 is connected to the cavity 12, which is used to make the atomized water entering the water washing shell 2 evenly distributed.

[0030] like Figure 2-Figure 4As shown, an air distribution plate 1401 rotatably connected to the washing shell 2 is fixedly connected to the lower side of the rotating shaft 8, and a plurality of evenly arranged second sleeves 1402 are fixedly connected to the air distribution plate 1401. The second sleeve 1402 is provided with four second holes 1403 in a circular array, and the opposite ends of the second holes 1403 in the circular array on the same second sleeve 1402 are all inclined downward, which is used to guide the passing water and prevent the water condensed from the mist from entering the air distribution plate 1401. The second holes 1403 are communicated with the air distribution plate 1401, and the lower end of the rotating shaft 8 is rotatably connected with a connecting sleeve 1404 fixedly connected and communicated with the air inlet pipe 502, and the connecting sleeve 1404 is communicated with the cavity on the rotating shaft 8.

[0031] When it is necessary to use the present device to wash the produced MTBE (for the sake of ease of description, mixed gas is used instead below), the staff starts the motor 3 and the water pump 4 and fills the mixed gas into the air inlet pipe 502. The mixed gas enters the cavity on the rotating shaft 8 through the air inlet pipe 502, and then the mixed gas in the cavity of the rotating shaft 8 enters the gas distribution plate 1401 through the adjacent first through hole, and then the mixed gas enters the water washing shell 2 through the adjacent second hole 1403, and then the mixed gas moves upward in the water washing shell 2. During the process, the water pump 4 draws external water into the middle tube through the liquid inlet pipe 501, and after the water passes through the atomizer, it enters the rotating shell 9 through the adjacent second through hole in the form of water mist, and then the water mist in the rotating shell 9 enters the cavity 12 and enters the water washing shell 2 through the adjacent first hole 13, and then the water mist moves downward under the action of its own gravity. The mixed gas is moved into contact with the mixed gas, so that the methanol in the mixed gas is dissolved in water, thereby washing the mixed gas with water. As the mixed gas continues to move upward, when the mixed gas moves upward to contact with the blocking member 11, the mixed gas begins to move upward along the blocking member 11, thereby increasing the distance the mixed gas moves in the water washing shell 2, thereby extending the contact time between the mixed gas and the water mist, and improving the effect of washing the mixed gas with water. At the same time, since the spiral blocking member 11 guides the mixed gas, the mixed gas has a tendency to rotate in the horizontal direction. The mixed gas moving upward not only contacts the water mist above it, but also contacts the water mist in the horizontally adjacent area, thereby further increasing the intensity of the relative movement between the mixed gas and the water mist, further increasing the contact area between the two, and thereby improving the washing effect and efficiency of the mixed gas.

[0032] After starting the motor 3, the output shaft of the motor 3 begins to rotate counterclockwise (in the top view), and the output shaft of the motor 3 drives the rotating shaft 8 to rotate counterclockwise, and the rotating shaft 8 drives the blocking member 11 to rotate counterclockwise, and the counterclockwise rotating blocking member 11 presses the mixed gas it contacts downward, thereby further increasing the distance that the mixed gas moves in the water washing shell 2, and further improving the water washing effect on the mixed gas. At the same time, the counterclockwise rotating blocking member 11 moves downward relative to the water mist coming out of the first hole 13, so as to avoid the blocking member 11 blocking and intercepting the water mist (the rotating blocking member 11 "avoids" the water mist), so that the water mist gathers and condenses on the blocking member 11, thereby reducing the contact area with the mixed gas, thereby improving the water washing effect and water washing efficiency of the mixed gas, and at the same time, the water mist entering the water washing shell 2 moves downward in a "raining" manner, so as to ensure that the water mist and the mixed gas The contact area between the bodies, since the pressure of the water mist gradually decreases in the process of filling the cavity 12, the amount of water mist sprayed from the first hole 13 gradually decreases from top to bottom, so that the area where the blocking member 11 is located in the water washing shell 2 forms an upper zone with a large initial amount of water mist and a lower zone with a small initial amount of water mist. In addition, since the mixed gas first contacts with the water mist in the lower zone in a high concentration state during the upward movement, the methanol in the mixed gas will completely wrap the water mist, so the amount difference is used to quickly remove a part of the methanol in the mixed gas, and then as the mixed gas continues to move upward, the mixed gas contacts with the water mist in the upper zone again. At that time, the amount of methanol in the mixed gas is reduced, but the amount of water mist in the upper zone is the largest, so at this time the water mist wraps the mixed gas, and then the amount difference is used to remove the residual methanol in the mixed gas, so as to ensure that the methanol in the mixed gas is completely removed.

[0033] As the mixed gas continues to move upward, when the mixed gas moves upward to enter the adjacent first set 10, the methanol has been completely removed from the mixed gas, and then the mixed gas is discharged through the outlet pipe 6.

[0034] During the counterclockwise rotation of the rotating shaft 8, the rotating shaft 8 drives the gas distribution plate 1401 to rotate counterclockwise, and the gas distribution plate 1401 drives the plurality of second sets 1402 to rotate counterclockwise, so that the mixed gas coming out of the second hole 1403 is distributed in the water washing shell 2 in an overall spiral shape and then moves upward, thereby increasing the diffusion degree and distribution uniformity of the mixed gas in the water washing shell 2, thereby increasing the contact area between the mixed gas and the water mist, and improving the effect of water washing on the mixed gas.

[0035] When the water mist moves downward and contacts the gas distribution plate 1401, the water mist gradually condenses into water droplets, and then the water droplets enter the lower part of the water washing shell 2 through the adjacent second set 1402 and accumulate. At this time, the accumulated solution is methanol water solution. This process continues. After the water washing of all mixed gases is completed, the staff turns off the motor 3 and the water pump 4 and opens the solenoid valve to discharge the methanol water solution through the liquid outlet pipe 7. After the methanol water solution is discharged, the staff closes the solenoid valve.

[0036] In the prior art, when washing MTBE (mixed gas), a quantitative amount of water mist is mostly used to wash MTBE (mixed gas). However, the amount of MTBE (mixed gas) varies according to the different preparation reaction rates. Therefore, there is a mismatch between the amount of MTBE (mixed gas) and the amount of water mist. This makes it difficult to ensure that MTBE (mixed gas) is fully washed with water, or wastes water resources and increases costs.

[0037] Embodiment 2: Based on embodiment 1, Figure 2 , Figure 5 and Figure 6 As shown, it also includes an adjusting mechanism for adjusting the power of the water pump 4, the adjusting mechanism is arranged on the left side of the frame 1, the adjusting mechanism includes a moving part 1501, a connecting hole is arranged on the right part of the upper side of the air inlet pipe 502, the moving part 1501 is sealingly and slidably connected to the connecting hole on the air inlet pipe 502, the moving part 1501 is provided with a first limiting groove 1502, the first limiting groove 1502 gradually tilts upward from left to right, a moving rod 1503 is slidably connected to the left side of the frame 1, an adjusting button 1504 fixedly connected to the moving rod 1503 is arranged on the left side of the water pump 4, the lower end of the moving rod 1503 is fixedly connected to the first limiting part 1505, the lower side of the first limiting part 1505 is provided with a limiting boss that slides and limits with the first limiting groove 1502, the limiting boss is limited and squeezed by the first limiting groove 1502, so that the moving rod 1503 and the frame 1 slide relative to each other, thereby making The regulating knob 1504 moves relative to the water pump 4 to change the power of the water pump 4 so that the amount of water mist matches the amount of the mixed gas, thereby reducing the water consumption while ensuring the water washing effect on the mixed gas. A moving plate 1506 is fixedly connected to the lower side of the moving member 1501 and is sealingly and slidably connected to the air inlet pipe 502. The moving plate 1506 is provided with a third through hole. Four sliding rods 1507 in a circular array are fixedly connected to the right side of the moving plate 1506. The diameter of the third through hole on the moving plate 1506 is smaller than the distance between adjacent sliding rods 1507, so that the moving plate 1506 slides relative to the air inlet pipe 502 when impacted by the mixed gas. The sliding rod 1507 is slidably connected to the air inlet pipe 502. Four first elastic elements 1508 in a circular array are fixedly connected between the moving plate 1506 and the air inlet pipe 502. The first elastic element 1508 is a spring and is used to reset the moving plate 1506.

[0038] When the mixed gas flows in the intake pipe 502, the mixed gas impacts the movable plate 1506, and then the mixed gas continues to move through the third through hole. When the mixed gas impacts the movable plate 1506, the movable plate 1506 moves to the right, and the movable plate 1506 drives the movable member 1501 and the four sliding rods 1507 to move to the right together. The four first elastic elements 1508 are all compressed, and the sliding rod 1507 slides relative to the intake pipe 502. During the process, the first limiting groove 1502 squeezes the limiting protrusion on the first limiting member 1505 upward, and then the first limiting member 1505 drives the movable rod 1503 to start moving upward, and the movable rod 1503 drives the adjusting button 1504 to move upward together, so as to adjust the power of the water pump 4, so that the amount of water mist entering the water washing shell 2 matches the amount of mixed gas, so as to ensure that the water usage is reduced and the cost is reduced under the premise of high-standard water washing of the mixed gas.

[0039] After the water washing of the mixed gas is completed, the mixed gas loses its impact on the movable plate 1506, and the movable plate 1506 begins to move to the left under the joint action of the elastic force of the four first elastic elements 1508. The movable plate 1506 drives the parts thereon to move to the left together, and the first limiting groove 1502 begins to squeeze the limiting protrusion on the first limiting member 1505 downward, and the first limiting member 1505 drives the adjusting button 1504 to begin to move downward until all parts are completely reset.

[0040] In the existing water washing technology, MTBE (mixed gas) is simply passed directly into the water washing tank (tower, box, etc.). However, the internal space of the tank (tower, box, etc.) is larger than the diameter of the air inlet pipe, so the MTBE (mixed gas) after entering is difficult to be evenly distributed in the water washing space and difficult to evenly contact with the water mist, resulting in poor water washing effect.

[0041] Embodiment 3: Based on embodiment 2, Figure 7-Figure 11 As shown, it also includes a mixing mechanism for stirring the gas, which is arranged on the lower side of the rotating shaft 8. The mixing mechanism includes a first ring 1601, which is slidably and rotatably connected to the lower side of the rotating shaft 8. The first ring 1601 is fixedly connected to four stirring members 1602 in an annular array. The projection of the lower side of the stirring members 1602 on the horizontal plane is two evenly arranged arcs. The arc area of ​​the stirring member 1602 close to the rotating shaft 8 is bent from the inside to the outside in a counterclockwise direction (in the top view), and the arc area of ​​the stirring member 1602 away from the rotating shaft 8 is bent from the inside to the outside in a clockwise direction, which is used to transfer the water scraped by the stirring member 1602 to the adjacent second set 1402. The stirring member 1602 is in contact with the gas distribution plate 1401. The lower side of the rotating shaft 8 is slidably and rotatably connected to the second ring 1603. The lower side of the water washing shell 2 is provided with a transmission component for causing the first ring 1601 and the rotating shaft 8 to move relative to each other.

[0042] like Figure 7-Figure 11 As shown, the transmission assembly includes a fixed rod 1701, which is fixedly connected to the lower right side of the washing shell 2, and the fixed rod 1701 is slidably connected to a sliding member 1702. The upper side ball of the sliding member 1702 is connected to two balls 1703 arranged in left and right mirror images, and the balls 1703 are squeezed and matched with the blocking member 11. The balls 1703 are squeezed by the blocking member 11 to make the fixed rod 1701 and the sliding member 1702 slide relative to each other, and a second elastic element 1704 is fixedly connected between the sliding member 1702 and the fixed rod 1701, and the second elastic element 1704 is a spring for resetting the sliding member 1702, and the second ring 1603 is rotatably connected to a second limiting member 1705, and the second limiting member 1705 is fixedly connected to the sliding member 1702, and the second ring 1603 is provided with four limiting protrusions in an annular array, and the lower side of the rotating shaft 8 is provided with four second limiting protrusions in an annular array. The limiting groove 1706, the second limiting groove 1706 is composed of a vertical first groove and an inclined second groove connected together, the first groove is located on the upper side of the adjacent second groove, the four second grooves are inclined in the clockwise direction from top to bottom (top view direction), the second groove is used to make the second ring 1603 and the rotating shaft 8 rotate relative to each other, the second limiting groove 1706 is limitedly matched with the adjacent limiting protrusion, and the adjacent limiting protrusion is limitedly squeezed by the second limiting groove 1706, so that the second ring 1603 moves with the rotating shaft 8 (or the two move relative to each other), the lower side of the second ring 1603 is fixedly connected with four extrusion pieces 1707 in an annular array, the extrusion piece 1707 is slidably connected to the first ring 1601, and a third elastic element 1708 is fixedly connected between the extrusion piece 1707 and the first ring 1601, and the third elastic element 1708 is an elastic rubber column, which is used to reset the adjacent extrusion piece 1707.

[0043] During the counterclockwise rotation of the rotating shaft 8, the rotating shaft 8 squeezes the adjacent limiting protrusion on the second ring 1603 through the first groove on the second limiting groove 1706, so that the second ring 1603 rotates counterclockwise with the rotating shaft 8, and the second ring 1603 and the second limiting member 1705 rotate relatively. The second ring 1603 drives the four extrusion members 1707 to rotate counterclockwise together, and the four extrusion members 1707 jointly drive the first ring 1601 to rotate counterclockwise together. The first ring 1601 drives the four stirring members 1602 to rotate counterclockwise together, so as to stir the mixed gas in the adjacent area, so that the mixed gas is evenly distributed in the water washing shell 2, thereby increasing the contact area between the mixed gas and the water mist, and improving the water washing effect on the mixed gas.

[0044] When the blocking member 11 rotates counterclockwise until it contacts the two balls 1703, as the blocking member 11 continues to rotate counterclockwise, the blocking member 11 begins to squeeze the two balls 1703 downward, and then the two balls 1703 jointly drive the sliding member 1702 to move downward together, the sliding member 1702 and the fixing rod 1701 slide relatively, the second elastic element 1704 is compressed, the sliding member 1702 drives the second limiting member 1705 to move downward together, the second limiting member 1705 drives the second ring 1603 to move downward together, the limiting protrusion on the second ring 1603 begins to slide in the first groove on the adjacent second limiting groove 1706, the second ring 1603 drives the four extruding members 1707 to move downward together, the first ring 1601 and the parts thereon begin to move downward under the action of their own gravity, and when the stirring member 1602 moves downward until it contacts the air distribution plate 1401, the limiting protrusion on the second ring 1603 moves downward to enter the adjacent second limiting groove 1706. The second groove on the upper surface, as the blocking member 11 continues to squeeze the two balls 1703 downward, the limiting protrusion on the second ring 1603 begins to rotate clockwise relative to the rotating shaft 8 (in the top view) under the limiting action of the second groove on the adjacent second limiting groove 1706, and the second ring 1603 drives the first ring 1601 and the parts thereon to rotate clockwise through the four extrusion members 1707. The clockwise rotating stirring member 1602 begins to scrape the adjacent area on the upper side of the gas distribution disk 1401, and transfers the condensed water droplets on the gas distribution disk 1401 to the adjacent second set 1402, so as to prevent the particulate impurities in the methanol aqueous solution from adhering to the gas distribution disk 1401, thereby affecting the normal progress of the water washing work. At the same time, the clockwise rotating stirring member 1602 further stirs the mixed gas coming out of the counterclockwise rotating gas distribution disk 1401, so that the mixed gas entering the water washing shell 2 is evenly distributed and fully contacts with the water mist, thereby improving the water washing effect on the mixed gas.

[0045] When the blocking member 11 rotates counterclockwise until it loses the squeezing of the two balls 1703, the sliding member 1702 begins to move upward under the action of the elastic force of the second elastic element 1704, and the sliding member 1702 drives the second limiting member 1705 to move upward together, and the second limiting member 1705 drives the second ring 1603 to move upward together, and the limiting protrusion on the second ring 1603 begins to slide in the second groove on the adjacent second limiting groove 1706, and under the limiting action of the second groove, the second ring 1603 and the parts thereon gradually move and reset until all parts are completely reset, and this process is repeated until the water washing of all mixed gases is completed.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A water washing device for preparing MTBE from isobutylene, comprising a frame, the frame is fixedly connected with a water washing shell, a motor is installed on the side of the water washing shell away from the frame, the frame is installed with a water pump, the water pump is connected with a liquid inlet pipe, the lower side of the frame is fixedly connected with an air inlet pipe, the upper side of the water washing shell is connected with an air outlet pipe, the lower side of the water washing shell is connected with a liquid outlet pipe, the output shaft of the motor is fixedly connected with a rotating shaft rotatably connected with the water washing shell through a coupling, the rotating shaft is provided with a cavity and a first through hole in an annular array on a side close to the air inlet pipe, the first through hole is connected with the cavity, the cavity on the rotating shaft is connected with the air inlet pipe, the water washing shell is rotatably connected with a rotating shell fixedly connected with the rotating shaft, the rotating shell is provided with a second through hole in an annular array, the water pump is connected and matched with the adjacent second through holes on the rotating shell through an intermediate pipe, an atomizer is installed in the intermediate pipe, and the rotating shell is fixedly connected with a first set arranged evenly, characterized in that It also includes a blocking member fixedly connected to the rotating shell, the blocking member is fixedly connected to the rotating shaft, the blocking member is in contact with the washing shell, the blocking member is provided with a cavity communicating with the rotating shell, the blocking member is provided with evenly arranged first holes, and the first holes are communicated with the cavity; The first hole is located on the upper side of the blocking member and is used to evenly distribute the atomized water entering the water washing shell; The blocking member is spiral-shaped, and the vertical movement speed of the spiral region thereof caused by the rotation of the blocking member is greater than the falling speed of the water mist, so as to prevent the water mist from contacting the upper side of the blocking member; A gas distribution plate is fixedly connected to a side of the rotating shaft away from the rotating shell, and the gas distribution plate is rotatably connected to the water washing shell; It also includes a mixing mechanism for stirring the gas, the mixing mechanism is arranged on the side of the rotating shaft close to the gas distribution disk, the mixing mechanism includes a first ring, the first ring is slidably and rotatably connected to the side of the rotating shaft close to the gas distribution disk, the first ring is fixedly connected to a ring-shaped array of stirring members, the stirring members are in contact with the gas distribution disk, the side of the rotating shaft close to the gas distribution disk is slidably and rotatably connected to the second ring, and the side of the washing shell close to the gas distribution disk is provided with a transmission component for making the first ring and the rotating shaft move relative to each other; The air distribution disk is fixedly connected to a uniformly arranged second sleeve, the second sleeve is provided with a ring-shaped array of second holes, the second holes are connected to the air distribution disk, and one end of the rotating shaft close to the air distribution disk is rotatably connected to a connecting sleeve, the connecting sleeve is fixedly connected to and connected to the air inlet pipe, and the connecting sleeve is connected to the cavity on the rotating shaft.

2. The water washing device for preparing MTBE from isobutylene according to claim 1, characterized in that: The opposite ends of the second holes of the same second set of annular arrays are inclined toward the direction close to the air inlet pipe, so as to guide the passing water.

3. The water washing device for preparing MTBE from isobutylene according to claim 1, characterized in that: The cam is provided with a first through hole, the second through hole being provided with a first stopper, the second through hole being provided with a second stopper, the first through hole being provided with a third stopper, the second through hole being provided with a first stopper, the second through hole being provided with a second stopper, the second through hole being provided with a third ...

4. The water washing device for preparing MTBE from isobutylene according to claim 1, characterized in that: The projection of the stirring member on the horizontal plane on the side close to the air distribution plate is an evenly arranged arc, which is used to transfer the water scraped by the stirring member to the adjacent second set.

5. The water washing device for preparing MTBE from isobutylene according to claim 1, characterized in that: The transmission assembly includes a fixed rod, which is fixedly connected to a side of the water washing shell close to the air distribution plate, the fixed rod is slidably connected to a sliding member, and a ball is ball-connected on a side of the sliding member away from the air distribution plate, the ball is extruded and matched with the blocking member, a second elastic element is fixedly connected between the sliding member and the fixed rod, the second ring is rotatably connected to a second limiting member, the second limiting member is fixedly connected to the sliding member, the second ring is provided with a limiting protrusion in an annular array, a side of the rotating shaft close to the second ring is provided with a second limiting groove in an annular array, the second limiting groove is limitedly matched with an adjacent limiting protrusion, the side of the second ring close to the first ring is fixedly connected to an extrusion member in an annular array, the extrusion member is slidably connected to the first ring, and a third elastic element is fixedly connected between the extrusion member and the first ring.

6. The water washing device for preparing MTBE from isobutylene according to claim 5, characterized in that: The second limiting groove is composed of a vertical first groove and an inclined second groove connected together, the first groove is located on the upper side of the adjacent second groove, and the second groove is used to enable the second ring to rotate relative to the rotating shaft.

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