Waste gas purification device for magnesium sulfate production and use method of waste gas purification device

Abstract

The invention relates to the technical field of waste gas treatment devices, and discloses a waste gas purification device for magnesium sulfate production and a use method thereof.The waste gas purification device comprises a base, two supporting frames are fixedly installed on the outer wall of the top of the base, a treatment barrel is rotationally embedded between the supporting frames, a box is arranged on the side of the treatment barrel, and the bottom face of the box is fixedly installed on the base; the outer cylinder is fixedly mounted on the side wall of the top of the base. According to the waste gas purification device for magnesium sulfate production and the using method thereof, the device is provided with the rotatable spraying structure, the spraying pressure can be adjusted in the rotating process of the spraying structure, so that the spraying liquid medicine coverage area is increased, the device can perform suction operation on waste gas at the top, secondary liquid medicine spraying mixing is performed on the sucked waste gas, and the waste gas purification effect is improved. The mixed and purified gas is sprayed out from the bottom of the device to prevent excessive concentration of the liquid medicine at the bottom of the device, so that the waste gas treatment is more sufficient.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment devices, and in particular to a waste gas purification device for magnesium sulfate production and a use method thereof. Background Art

[0002] During the production of magnesium sulfate, waste gas containing many harmful substances will be generated. Direct discharge of waste gas into the external environment will cause serious air pollution. Therefore, it is necessary to use waste gas treatment equipment to treat the waste gas harmlessly. There are two main ways to treat waste gas: physical adsorption and chemical liquid reaction. However, there are still some problems with the existing waste gas treatment devices: For example, a waste gas treatment device for petrochemical industry with announcement number CN119215644A includes a treatment box 1 and a treatment box 2 installed on the left side of the treatment box 1, a partition is fixedly installed on the inner wall of the treatment box 1, and the inner cavity of the treatment box 1 is divided into an upper treatment cavity and a lower treatment cavity by the partition, and multiple sets of fixing plates are installed on the top of the inner wall of the treatment box 1, and a cover plate and an air inlet pipe are installed on the top of the fixing plate by bolt pressing; The announcement number is CN218012029U. This is a coal chemical waste gas treatment environmental protection device, which belongs to the field of waste gas treatment devices and solves the current problem that waste gas has great environmental pollution and harm to human body. The air inlet of the acid washing tower is connected to the waste gas collection pipeline. The air outlet of the acid washing tower is connected to the air inlet of the alkali washing tower; During use of the above-mentioned device, the spraying mode of the spray structure inside the device is relatively fixed, the spray liquid in the device and the exhaust gas are in contact with a large range, and the device can only perform a single spray operation on the exhaust gas. In addition, since the liquid sprayed from the device will be concentrated to the bottom of the device under the action of gravity, the exhaust gas purification at the top of the device is not sufficient.

[0003] In view of the above problems, it is urgent to carry out innovative design based on the original exhaust gas treatment device. Summary of the invention

[0004] The object of the present invention is to provide a waste gas purification device for magnesium sulfate production and a method of using the same, so as to solve the following problems of the existing waste gas treatment device proposed in the above background technology: during use, the spraying mode of the spraying structure inside the device is relatively fixed, the spraying liquid in the device and the waste gas are in contact with a large range, and the device can only perform a single spray operation on the waste gas, and because the liquid sprayed in the device will be concentrated to the bottom of the device under the action of gravity, the waste gas purification at the top of the device is not sufficient.

[0005] To achieve the above object, the present invention provides the following technical solution: a waste gas purification device for magnesium sulfate production, comprising: A base, on the top outer wall of which two support frames are fixedly installed, a treatment cylinder is rotatably embedded between the support frames, and a box body is arranged on the side of the treatment cylinder, and the bottom surface of the box body is fixedly installed on the base; Also includes: An outer cylinder, which is fixedly mounted on the top side wall of the base, the bottom of the outer cylinder is fixedly connected with a discharge check valve pipe and a liquid inlet check valve pipe, and the end of the liquid inlet check valve pipe away from the outer cylinder is fixedly connected to the box body, and the side of the discharge check valve pipe away from the outer cylinder is fixedly installed on the side wall of the treatment cylinder, and a symmetrical spray mechanism is fixedly installed on the middle part of the inner wall of the treatment cylinder, and the spray mechanism includes a jet pipe, both ends of the jet pipe are fixedly connected to the inner wall of the treatment cylinder, and symmetrically distributed baffles are rotatably installed between the side wall of the jet pipe and the inner wall of the treatment cylinder, and the side wall of the jet pipe is fixedly connected with a liquid outlet of the discharge check valve pipe; An outer plug rod, wherein the middle part is slidably penetrated and installed on the top of the outer cylinder, the bottom end of the outer plug rod is coaxially fixedly installed on the upper end surface of the extrusion plug, and the extrusion plug is slidably fitted on the inner wall of the outer cylinder, an inner plug rod is coaxially slidably installed on the inner wall of the outer plug rod, and a suction plug is fixedly installed on the bottom end of the inner plug rod, and the suction plug is slidably fitted in the cavity of the extrusion plug, a transmission mechanism is fixedly installed on the top side wall of the outer plug rod, and the transmission mechanism includes a swing arm, one end of the swing arm is rotatably connected to the bracket of the outer plug rod, and a horizontal axis of a connecting piece is slidably penetrated in a through groove at the other end of the swing arm, and the connecting piece is fixedly connected to the top side wall of the inner plug rod.

[0006] Preferably, corresponding limit rings are coaxially fixedly connected to the side walls at both ends of the jet pipe, and the limit rings are slidably installed on the baffle to form a rotation limit structure, and the spray hole opened on the side wall of the jet pipe is located between the two baffles, and force rods are fixedly connected to the end faces of both sides of the baffle, and the force rods are slidably inserted in the through inclined grooves opened on the thrust frame, so that the force rods can drive the baffle to move.

[0007] Preferably, the two through inclined grooves on the thrust frame form an "eight"-shaped structure, and one end of the thrust frame is slidably embedded in the processing cylinder, and a convex rod is vertically fixedly connected to the side wall of the other end of the thrust frame, and the inner wall of the support frame is provided with symmetrically distributed wave grooves, and the convex rod is slidably inserted in the wave groove of the support frame to form a transmission structure, so that the convex rod can drive the thrust frame to move.

[0008] Preferably, one end of a connecting tube is fixedly connected to the top side wall of the outer cylinder, and the other end of the connecting tube is fixedly connected to the bottom of the side wall of the box body. An electric cylinder is arranged directly above the outer cylinder, and the electric cylinder is vertically fixed and installed on the top of the fixing frame, and the lower end of the fixing frame is fixedly connected to the top of the base, and the moving end of the electric cylinder is coaxially fixedly connected to the top of the outer plug rod, so that the electric cylinder can drive the outer plug rod to move.

[0009] Preferably, an air flow channel and a mixing channel are provided through the lower portion of the inner plug rod, and the lower end of the inner plug rod slides through the top of the extrusion plug, and the two through holes provided on the suction plug are respectively connected with the air flow channel and the mixing channel, and the lower port of the one-way gas valve pipe and the upper port of the discharge pipe are fixedly installed through the upper portion of the side wall of the inner plug rod, and the tube bodies of the one-way gas valve pipe and the discharge pipe are both passed through the through groove on the side wall of the outer plug rod, the top of the air flow channel is connected with the lower port of the one-way gas valve pipe, and the top of the mixing channel is connected with the upper port of the discharge pipe, so that the inner plug rod can drive the suction plug to move.

[0010] Preferably, the upper end of the one-way gas valve pipe is fixedly installed on the top of the processing cylinder, and the upper port of the one-way gas valve pipe is fixedly connected to the top of the suction frame, and the suction frame is fixedly embedded in the top of the inner wall of the processing cylinder, the bottom of the inner wall of the processing cylinder is fixedly embedded with a spray frame, and the bottom of the spray frame is fixedly connected to the lower port of the discharge pipe, and the discharge pipe is fixedly installed on the bottom of the processing cylinder, so that the gas in the suction frame can enter the one-way gas valve pipe.

[0011] Preferably, a driving rod is fitted and inserted in the middle of the through groove of the swing arm, and the driving rod is fixedly connected to the edge of the disk surface of the rotating disk, and a transmission gear is coaxially fixedly connected to the side of the rotating disk away from the driving rod, the convex shaft of the transmission gear is rotatably embedded in the bracket of the outer plug rod, and a toothed plate is meshingly provided on the side of the transmission gear, and the upper and lower ends of the toothed plate are respectively fixedly mounted on the fixed frame and the outer wall of the outer cylinder, symmetrically distributed thrust arms are rotatably connected on both sides of the bracket of the outer plug rod, and the thrust arm is rotatably connected to the side wall of the processing cylinder on the side away from the outer plug rod, and the thrust arm is inclined so that the transmission gear can drive the rotating disk to rotate.

[0012] Preferably, a pressure rod frame is slidably embedded in the interior of the inner plug rod, and a pressure spring is fixedly connected between the top of the pressure rod frame and the inner wall of the inner plug rod, the middle and lower ends of the pressure rod frame are respectively fixedly connected with a one-way blocking ring and a one-way plug, the bottom inclined surface of the one-way blocking ring is fitted at the nozzle of the spray ring to form a one-way jet structure, and the one-way plug is fitted at the lower port of the mixing channel to form a one-way ventilation structure, the spray ring is fixedly connected to the inner wall of the inner plug rod, and the spray ring is in the middle of the mixing channel, and the bottom of the spray ring is fixedly connected to the upper end of the infusion tube, and the infusion tube is fixedly passed through the inner plug rod and the suction plug, so that the pressure rod frame can drive the one-way blocking ring and the one-way plug to move.

[0013] Preferably, a discharge mechanism is fixedly connected to the top edge of the suction plug, and the discharge mechanism includes a connecting rod, the bottom end of the connecting rod is fixedly connected to the top of the suction plug, and the upper end of the connecting rod is slidably inserted on the movable plug, and the movable plug is slidably and tightly arranged at the bottom of the inner wall of the pressure cylinder, and the pressure cylinder is fixedly embedded in the top of the extrusion plug, a drainage channel is opened inside the connecting rod, and the upper end of the drainage channel faces the bottom of the pressure cylinder, and the lower end of the drainage channel faces the lower end of the infusion tube, a return spring is fixedly connected between the top of the inner wall of the movable plug and the end of the connecting rod, and the convex column at the top of the connecting rod slides through the top setting of the movable plug, the top of the convex column of the connecting rod is fixedly connected with a top pressure cap, and the top pressure cap is sleeved on the top of the movable plug, a sealing block is fixedly connected at the bottom edge of the top pressure cap, and the sealing block is fit and inserted in the through hole on the movable plug to form a closed structure, and the diameter of the top pressure cap is smaller than the inner diameter of the pressure cylinder, so that the suction plug can drive the connecting rod to move.

[0014] The operating method of the waste gas purification device for magnesium sulfate production comprises the following steps: S1: The external equipment sends the waste gas into the treatment cylinder through the air inlet on one side of the support frame. The treatment liquid in the box body flows into the top of the outer cylinder through the connecting pipe. The user controls the electric cylinder to start, and the electric cylinder will drive the outer plug rod installed at the bottom to move synchronously. At this time, the outer plug rod will drive the extrusion plug to move back and forth in the outer cylinder to produce air pressure changes. The treatment liquid in the box body will flow into the outer cylinder through the liquid inlet check valve pipe, and the liquid in the outer cylinder will enter the jet pipe through the liquid discharge check valve pipe. The jet pipes on both sides of the treatment cylinder begin to spray out the treatment liquid. At the same time, the outer plug rod will drive the treatment cylinder to reciprocate between the two support frames through the rotating connected thrust arm, and the treatment cylinder drives the jet pipe to synchronously adjust the jet angle; S2: During the rotation of the treatment tube, the treatment tube will drive the protruding rod to move along the wave groove on the inner wall of the support frame through the thrust frame, so that the protruding rod can drive the thrust frame to move back and forth. During this process, the inclined groove on the thrust frame will apply thrust to the force-bearing rod, so that the force-bearing rod drives the baffle to reciprocate along the limit ring. When the ends of the two baffles are close to each other, the baffles will block part of the spray holes on the jet pipe, so that the pressure of the remaining spray holes on the jet pipe increases, thereby increasing the effective spray length of the jet pipe. When the two baffles no longer block the spray holes on the jet pipe, the jet pipe will spray a large area at a lower pressure. S3: During the movement of the outer plug rod, the bracket on the outer plug rod will drive the transmission gear to move along the toothed plate. At this time, the transmission gear will drive the rotating disk to rotate, and the driving rod on the rotating disk will drive the swing arm to swing back and forth. The swing arm will drive the inner plug rod to move up and down through the connecting piece. At this time, the inner plug rod will drive the suction plug to move in the extrusion plug. When the suction plug moves upward, negative pressure will be generated inside the extrusion plug. At this time, the exhaust gas at the top of the treatment cylinder will enter the space below the suction plug through the suction bracket, the one-way gas transmission valve pipe and the air flow channel in sequence. At the same time, the upward moving suction plug will drive the connecting rod to move synchronously. At this time, the connecting rod will apply pressure to the top pressure cap. Since the moving plug is fitted on the inner wall of the pressurized cylinder, if the moving plug moves upward, negative pressure will be generated at the bottom of the moving plug to prevent movement. Therefore, when the connecting rod moves upward, the reset spring will be compressed. At the same time, the connecting rod will drive the top pressure cap and the sealing block to move upward, so that the sealing block no longer seals the through hole on the suction plug. At this time, the treatment liquid in the outer cylinder will enter the bottom of the moving plug under the suction of negative pressure; S4: When the suction plug moves downward, the exhaust gas sucked under the suction plug will enter the mixing channel. At this time, the exhaust gas will push the one-way plug to move upward, and the one-way plug will drive the one-way plugging ring to move synchronously through the pressure rod frame. At this time, the one-way plugging ring will move away from the spraying ring. During this process, the connecting rod will push the movable plug to move downward synchronously through the top pressure cap. At this time, the movable plug will squeeze the liquid medicine at the bottom of the pressurizing cylinder, and the liquid medicine in the pressurizing cylinder will flow to the spraying ring through the drainage channel and the infusion tube, so that the spray holes on the spraying ring can spray out liquid medicine mist, so that the exhaust gas and liquid medicine can be fully mixed and reacted in the mixing channel, and then the treated gas in the mixing channel will be discharged to the inside of the treatment cylinder through the discharge pipe and the spray frame. Under the joint action of the spray frame and the suction frame, the mixing effect of the liquid medicine and the exhaust gas in the treatment cylinder can be further improved.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the waste gas purification device for magnesium sulfate production and the use method thereof are provided with a rotatable spray structure, the spray pressure can be adjusted during the rotation of the spray structure, thereby increasing the coverage area of ​​the spray liquid, and the device can perform a suction operation on the waste gas at the top and perform a secondary liquid spray mixing on the sucked waste gas, and the mixed and purified gas will be sprayed out from the bottom of the device to prevent the liquid from being excessively concentrated at the bottom of the device, so that the waste gas treatment is more sufficient, and the specific contents are as follows: 1. A symmetrical spray mechanism is fixedly installed in the middle of the inner wall of the treatment tube. The spray mechanism includes a spray pipe. Both ends of the spray pipe are fixedly connected to the inner wall of the treatment tube. Symmetrically distributed baffles are rotatably installed between the side wall of the spray pipe and the inner wall of the treatment tube. Corresponding limit rings are coaxially fixedly connected to the side walls of the two ends of the spray pipe. The limit rings are slidably installed on the baffle to form a rotation limit structure. The spray hole opened on the side wall of the spray pipe is between the two baffles. The end faces of both sides of the baffle are fixedly connected with force rods, and the force rods are fixedly connected to the side walls of the baffle. The force rod is slidably inserted in the through inclined groove opened on the thrust frame. When the treatment tube drives the spray mechanism to rotate, the angle of the liquid sprayed from the jet pipe will change synchronously. At the same time, the treatment tube will drive the convex rod on the thrust frame to move along the wave groove on the support frame. At this time, the thrust frame will reciprocate. The thrust frame drives the baffle to reciprocate on the jet pipe through the force rod. When the baffle seals part of the jet holes on the jet pipe, the pressure in the remaining jet holes of the jet pipe will increase synchronously. At this time, the length of the sprayed liquid will increase, thereby increasing the jet area. 2. A transmission mechanism is fixedly installed on the top side wall of the outer plug rod, and the transmission mechanism includes a swing arm, one end of the swing arm is rotatably connected to the bracket of the outer plug rod, and a horizontal axis of a connecting piece is slid through the through groove at the other end of the swing arm, and the connecting piece is fixedly connected to the top side wall of the inner plug rod, and a driving rod is fitted and inserted in the middle of the through groove of the swing arm, and the driving rod is fixedly connected to the edge of the disk surface of the rotating disk, and a transmission gear is coaxially fixedly connected to the side of the rotating disk away from the driving rod, and the convex shaft of the transmission gear is rotatably embedded in the bracket of the outer plug rod, and a toothed plate is meshed on the side of the transmission gear. When the outer plug rod moves downward, the toothed plate will drive the transmission gear to rotate, and the transmission gear will drive the driving rod to rotate through the rotating disk, so that the driving rod can drive the swing arm to swing back and forth. At this time, the swing arm will drive the inner plug rod to move synchronously, and the inner plug rod will drive the suction plug arranged at the bottom to move in the extrusion plug, so that the device can perform suction and exhaust operations while spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall external structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the treatment cylinder of the present invention; Figure 3 This is a schematic diagram of the electric cylinder installation structure of the present invention; Figure 4 This is a schematic diagram of the installation structure of the suction rack of the present invention; Figure 5 This is a schematic diagram of the installation structure of the jet pipe of the present invention; Figure 6 This is a schematic diagram of the thrust frame installation structure of the present invention; Figure 7 This is a schematic diagram of the tooth plate installation structure of the present invention; Figure 8This is a schematic diagram of the installation structure of the outer plug rod of the present invention; Fig. 9 This is a schematic diagram of the outer cylinder installation structure of the present invention; Fig.10 This is a schematic diagram of the pressure rod frame installation structure of the present invention; Fig.11 This is a schematic diagram of the inner plug rod installation structure of the present invention; Fig.12 This is a schematic diagram of the transmission gear installation structure of the present invention; Fig.13 This is a schematic diagram of the installation structure of the pressurized cylinder of the present invention; Fig.14 This is a schematic diagram of the installation structure of the spray ring of the present invention; Fig.15 This is a schematic diagram of the connecting rod installation structure of the present invention; Fig.16 It is a schematic diagram of the installation structure of the top pressure cap of the present invention.

[0017] In the figure: 1, base; 2, support frame; 3, treatment cylinder; 4, spray mechanism; 401, jet pipe; 402, baffle; 403, force rod; 404, limit ring; 405, thrust frame; 406, convex rod; 5, discharge check valve pipe; 6, outer cylinder; 7, inlet check valve pipe; 8, box; 9, connecting pipe; 10, extrusion plug; 11, outer plug rod; 12, electric cylinder; 13, fixing frame; 14, inner plug rod; 15, connecting piece; 16, transmission mechanism; 1601, swing arm; 1602, driving rod; 1603, rotating disk; 1604 , transmission gear; 17, tooth plate; 18, pressure rod frame; 19, pressure spring; 20, one-way blocking ring; 21, spray ring; 22, infusion tube; 23, one-way plug; 24, air flow channel; 25, mixing channel; 26, suction plug; 27, discharge mechanism; 2701, connecting rod; 2702, drainage channel; 2703, movable plug; 2704, sealing block; 2705, top pressure cap; 2706, reset spring; 28, pressurizing cylinder; 29, one-way gas valve pipe; 30, suction frame; 31, discharge pipe; 32, spray frame; 33, thrust arm. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 16 The present invention provides a technical solution: a waste gas purification device for magnesium sulfate production, comprising: A base 1, on the top outer wall of which two support frames 2 are fixedly installed, a treatment cylinder 3 is rotatably embedded between the support frames 2, and a box body 8 is arranged on the side of the treatment cylinder 3, and the bottom surface of the box body 8 is fixedly installed on the base 1; Also includes: The outer cylinder 6 is fixedly mounted on the top side wall of the base 1, the bottom of the outer cylinder 6 is fixedly connected with a discharge check valve tube 5 and a liquid inlet check valve tube 7, and the end of the liquid inlet check valve tube 7 away from the outer cylinder 6 is fixedly connected to the box body 8, and the side of the discharge check valve tube 5 away from the outer cylinder 6 is fixedly installed on the side wall of the treatment cylinder 3, and a symmetrical spray mechanism 4 is fixedly installed in the middle of the inner wall of the treatment cylinder 3, and the spray mechanism 4 includes a jet pipe 401, both ends of the jet pipe 401 are fixedly connected to the inner wall of the treatment cylinder 3, and a symmetrically distributed baffle 402 is rotatably installed between the side wall of the jet pipe 401 and the inner wall of the treatment cylinder 3, and the side wall of the jet pipe 401 is fixedly connected with the liquid outlet of the discharge check valve tube 5; The outer plug rod 11, the middle of which is slidably installed on the top of the outer tube 6, the bottom end of the outer plug rod 11 is coaxially fixedly installed on the upper end surface of the extrusion plug 10, and the extrusion plug 10 is slidably fitted on the inner wall of the outer tube 6, the inner plug rod 14 is coaxially slidably installed on the inner wall of the outer plug rod 11, and the suction plug 26 is fixedly installed on the bottom end of the inner plug rod 14, and the suction plug 26 is slidably fitted in the cavity of the extrusion plug 10, and a transmission mechanism 16 is fixedly installed on the top side wall of the outer plug rod 11, the transmission mechanism 16 includes a swing arm 1601, one end of the swing arm 1601 is rotatably connected to the bracket of the outer plug rod 11, and the horizontal axis of the connecting member 15 is slidably penetrated in the through groove at the other end of the swing arm 1601, and the connecting member 15 is fixedly connected to the top side wall of the inner plug rod 14.

[0020] The two through inclined grooves on the thrust frame 405 form an "eight"-shaped structure, and one end of the thrust frame 405 is slidably embedded in the processing cylinder 3, and a convex rod 406 is vertically fixedly connected to the side wall of the other end of the thrust frame 405. A symmetrically distributed wave groove is opened on the inner wall of the support frame 2, and a convex rod 406 is slidably inserted in the wave groove of the support frame 2 to form a transmission structure. When the processing cylinder 3 drives the thrust frame 405 to rotate, the convex rod 406 on the thrust frame 405 will move along the wave groove, so that the convex rod 406 can drive the thrust frame 405 to reciprocate. The jet pipe 401 is movable, and corresponding limit rings 404 are coaxially fixedly connected to the side walls at both ends of the jet pipe 401, and the limit rings 404 are slidably installed on the baffle 402 to form a rotation limit structure, and the spray hole opened on the side wall of the jet pipe 401 is between the two baffles 402, and the end faces of both sides of the baffle 402 are fixedly connected with force rods 403, and the force rods 403 are slidably inserted in the through inclined grooves opened on the thrust frame 405. At this time, the thrust frame 405 will drive the baffle 402 to reciprocate along the limit ring 404 through the force rod 403.

[0021] One end of the connecting pipe 9 is fixedly connected to the top side wall of the outer cylinder 6, and the other end of the connecting pipe 9 is fixedly connected to the bottom of the side wall of the box body 8. An electric cylinder 12 is arranged directly above the outer cylinder 6, and the electric cylinder 12 is vertically fixed and installed on the top of the fixing frame 13, and the lower end of the fixing frame 13 is fixedly connected to the top of the base 1, and the moving end of the electric cylinder 12 is coaxially fixedly connected to the top of the outer plug rod 11, so that the electric cylinder 12 can drive the outer plug rod 11 to move. Since the driving rod 1602 is inserted in the middle of the through groove of the swing arm 1601, and the driving rod 1602 is fixedly connected to the edge of the disk surface of the rotating disk 1603, and the rotating disk 1603 is away from the driving rod 1602. A transmission gear 1604 is coaxially fixedly connected to one side, and the convex shaft of the transmission gear 1604 is rotatably embedded in the bracket of the outer plug rod 11, and a tooth plate 17 is meshed on the side of the transmission gear 1604. The upper and lower ends of the tooth plate 17 are respectively fixedly installed on the outer wall of the fixed frame 13 and the outer cylinder 6. The two sides of the bracket of the outer plug rod 11 are rotatably connected with symmetrically distributed thrust arms 33, and the side of the thrust arm 33 away from the outer plug rod 11 is rotatably connected to the side wall of the processing cylinder 3, and the thrust arm 33 is tilted. At this time, the tooth plate 17 will drive the transmission gear 1604 to rotate, and the transmission gear 1604 will drive the swing arm 1601 through the driving rod 1602 on the rotating disk 1603. The swing arm 1601 drives the inner plug rod 14 to move back and forth through the connecting piece 15. Since the lower part of the inner plug rod 14 is provided with an air flow channel 24 and a mixing channel 25, and the lower end of the inner plug rod 14 slides through the top of the extrusion plug 10, the two through-holes provided on the suction plug 26 are respectively connected with the air flow channel 24 and the mixing channel 25. The lower port of the one-way gas delivery valve pipe 29 and the upper port of the discharge pipe 31 are fixedly connected through the upper part of the side wall of the inner plug rod 14, and the tube bodies of the one-way gas delivery valve pipe 29 and the discharge pipe 31 are both connected through the through groove on the side wall of the outer plug rod 11. The top of the air flow channel 24 is connected with the lower port of the one-way gas delivery valve pipe 29, and the top of the mixing channel 25 is connected with the lower port of the one-way gas delivery valve pipe 29. It is connected to the upper port of the discharge pipe 31. At this time, the inner plug rod 14 will drive the suction plug 26 to reciprocate and generate suction force. Since the upper end of the one-way gas valve pipe 29 is fixedly installed on the top of the treatment cylinder 3, and the upper port of the one-way gas valve pipe 29 is fixedly connected to the top of the suction frame 30, and the suction frame 30 is fixedly embedded in the top of the inner wall of the treatment cylinder 3, the bottom of the inner wall of the treatment cylinder 3 is fixedly embedded with an ejection frame 32, and the bottom of the ejection frame 32 is fixedly connected to the lower port of the discharge pipe 31, and the discharge pipe 31 is fixedly installed on the bottom of the treatment cylinder 3. At this time, the exhaust gas at the top of the treatment cylinder 3 will enter the bottom of the suction plug 26 through the suction frame 30 and the one-way gas valve pipe 29.

[0022] A pressure rod frame 18 is slidably embedded in the inner plug rod 14, and a pressure spring 19 is fixedly connected between the top of the pressure rod frame 18 and the inner wall of the inner plug rod 14. A one-way blocking ring 20 and a one-way plug 23 are fixedly connected to the middle and lower ends of the pressure rod frame 18, respectively. The bottom inclined surface of the one-way blocking ring 20 is fitted at the nozzle of the spray ring 21 to form a one-way jet structure. The one-way plug 23 is fitted at the lower port of the mixing channel 25 to form a one-way ventilation structure. The spray ring 21 is fixedly connected to the inner wall of the inner plug rod 14. It is connected to the inner wall of the inner plug rod 14, and the spray ring 21 is in the middle of the mixing channel 25, and the bottom of the spray ring 21 is fixedly connected to the upper end of the infusion tube 22, and the infusion tube 22 is fixedly passed through the inner plug rod 14 and the suction plug 26. When the suction plug 26 moves downward to squeeze the exhaust gas drawn in, the gas will push the one-way plug 23 to move upward, and the one-way plug 23 will drive the pressure rod frame 18 and the one-way plug ring 20 to move synchronously, and the pressure rod frame 18 will compress the pressure spring 19.

[0023] A drainage mechanism 27 is fixedly connected to the top edge of the suction plug 26, and the drainage mechanism 27 includes a connecting rod 2701, the bottom end of the connecting rod 2701 is fixedly connected to the top of the suction plug 26, and the upper end of the connecting rod 2701 is slidably inserted on the movable plug 2703, and the movable plug 2703 is slidably fitted on the bottom of the inner wall of the pressurizing cylinder 28, and the pressurizing cylinder 28 is fixedly embedded in the top of the extrusion plug 10, a drainage channel 2702 is opened inside the connecting rod 2701, and the upper end of the drainage channel 2702 faces the bottom of the pressurizing cylinder 28, and the lower end of the drainage channel 2702 faces the lower end of the infusion tube 22, a return spring 2706 is fixedly connected between the top of the inner wall of the movable plug 2703 and the end of the connecting rod 2701, and The boss at the top of the connecting rod 2701 slides through the top setting of the movable plug 2703, and the top of the boss of the connecting rod 2701 is fixedly connected to a top pressure cap 2705, and the top pressure cap 2705 is sleeved on the top of the movable plug 2703, and the bottom edge of the top pressure cap 2705 is fixedly connected to a sealing block 2704, and the sealing block 2704 is fitly inserted in the through hole on the movable plug 2703 to form a closed structure, and the diameter of the top pressure cap 2705 is smaller than the inner diameter of the pressurizing cylinder 28, so that the connecting rod 2701 can drive the top pressure cap 2705 to move upward. At this time, the top pressure cap 2705 will drive the sealing block 2704 to move upward away from the through hole on the movable plug 2703, so that the medicine at the top of the outer cylinder 6 can enter the bottom of the movable plug 2703.

[0024] The operating method of the waste gas purification device for magnesium sulfate production comprises the following steps: S1: The external equipment sends the exhaust gas into the treatment tube 3 through the air inlet on the support frame 2 on one side. The treatment liquid in the box body 8 flows into the top of the outer tube 6 through the connecting pipe 9. The user controls the electric cylinder 12 to start. The electric cylinder 12 will drive the outer plug rod 11 installed at the bottom to move synchronously. At this time, the outer plug rod 11 will drive the extrusion plug 10 to move back and forth in the outer tube 6 to produce air pressure changes. The treatment liquid in the box body 8 will flow into the outer tube 6 through the liquid inlet one-way valve pipe 7. The liquid in the outer tube 6 enters the jet pipe 401 through the liquid discharge one-way valve pipe 5. The jet pipes 401 on both sides of the treatment tube 3 start to spray the treatment liquid. At the same time, the outer plug rod 11 will drive the treatment tube 3 to reciprocate between the two support frames 2 through the rotatably connected thrust arm 33, and the treatment tube 3 drives the jet pipe 401 to synchronously adjust the jet angle; S2: During the rotation of the treatment tube 3, the treatment tube 3 will drive the protruding rod 406 to move along the wave groove on the inner wall of the support frame 2 through the thrust frame 405, so that the protruding rod 406 can drive the thrust frame 405 to move back and forth. During this process, the inclined groove on the thrust frame 405 will apply thrust to the force-bearing rod 403, so that the force-bearing rod 403 drives the baffle 402 to reciprocate along the limit ring 404. When the ends of the two baffles 402 are close to each other, the baffle 402 will block part of the spray holes on the jet pipe 401, so that the pressure of the remaining spray holes on the jet pipe 401 increases, thereby increasing the effective spray length of the jet pipe 401. When the two baffles 402 no longer block the spray holes on the jet pipe 401, the jet pipe 401 will spray a large area at a lower pressure; S3: During the movement of the outer plug rod 11, the bracket on the outer plug rod 11 will drive the transmission gear 1604 to move along the toothed plate 17. At this time, the transmission gear 1604 will drive the rotating disk 1603 to rotate, and the driving rod 1602 on the rotating disk 1603 will drive the swing arm 1601 to swing back and forth. The swing arm 1601 will drive the inner plug rod 14 to move up and down through the connecting piece 15. At this time, the inner plug rod 14 will drive the suction plug 26 to move in the extrusion plug 10. When the suction plug 26 moves upward, negative pressure will be generated inside the extrusion plug 10. At this time, the exhaust gas at the top of the treatment cylinder 3 will enter the space below the suction plug 26 through the suction bracket 30, the one-way gas delivery valve pipe 29 and the air flow channel 24 in sequence. At the same time, the suction plug 26 moving upward will drive the connecting rod 2701 to move synchronously. At this time, the connecting rod 2701 will apply pressure to the top pressure cap 2705. Since the movable plug 2703 is fitted on the inner wall of the pressurizing cylinder 28, if the movable plug 2703 moves upward, negative pressure will be generated at the bottom of the movable plug 2703 to prevent movement. Therefore, when the connecting rod 2701 moves upward, the return spring 2706 will be compressed. At the same time, the connecting rod 2701 will drive the top pressure cap 2705 and the sealing block 2704 to move upward, so that the sealing block 2704 no longer seals the through hole on the suction plug 26. At this time, the treatment liquid in the outer cylinder 6 will enter the bottom of the movable plug 2703 under the suction of negative pressure; S4: When the suction plug 26 moves downward, the exhaust gas sucked from the bottom of the suction plug 26 will enter the mixing channel 25. At this time, the exhaust gas will push the one-way plug 23 to move upward. The one-way plug 23 drives the one-way plug ring 20 to move synchronously through the pressure rod frame 18. At this time, the one-way plug ring 20 will move away from the spray ring 21. During this process, the connecting rod 2701 will push the movable plug 2703 to move downward synchronously through the top pressure cap 2705. At this time, the movable plug 2703 will squeeze the medicine at the bottom of the pressurizing cylinder 28. The liquid in the pressurizing cylinder 28 will flow to the spraying ring 21 through the drainage channel 2702 and the infusion tube 22, so that the spray holes on the spraying ring 21 can spray out the liquid mist, so that the waste gas and the liquid can be fully mixed and reacted in the mixing channel 25, and then the treated gas in the mixing channel 25 will be discharged to the interior of the treatment cylinder 3 through the discharge pipe 31 and the spraying frame 32. Under the joint action of the spraying frame 32 and the suction frame 30, the mixing effect of the liquid and the waste gas in the treatment cylinder 3 can be further improved.

[0025] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste gas purification device for magnesium sulfate production, comprising: A base (1) having two support frames (2) fixedly mounted on its top outer wall, a treatment cylinder (3) being rotatably embedded between the support frames (2), a box body (8) being arranged on the side of the treatment cylinder (3), and a bottom surface of the box body (8) being fixedly mounted on the base (1); It is characterized by further comprising: An outer cylinder (6) is fixedly mounted on the top side wall of the base (1); a liquid discharge one-way valve pipe (5) and a liquid inlet one-way valve pipe (7) are fixedly connected at the bottom of the outer cylinder (6); an end of the liquid inlet one-way valve pipe (7) away from the outer cylinder (6) is fixedly connected to the box body (8); and a side of the liquid discharge one-way valve pipe (5) away from the outer cylinder (6) is fixedly installed through the side wall of the treatment cylinder (3); a symmetrical spray mechanism (4) is fixedly mounted in the middle of the inner wall of the treatment cylinder (3); the spray mechanism (4) comprises a jet pipe (401); two ends of the jet pipe (401) are fixedly connected to the inner wall of the treatment cylinder (3); symmetrically distributed baffles (402) are rotatably mounted between the side wall of the jet pipe (401) and the inner wall of the treatment cylinder (3); and a liquid outlet of the liquid discharge one-way valve pipe (5) is fixedly connected on the side wall of the jet pipe (401); An outer plug rod (11) is slidably mounted on the top of the outer cylinder (6) at its middle, the bottom end of the outer plug rod (11) is coaxially fixedly mounted on the upper end surface of the extrusion plug (10), and the extrusion plug (10) is slidably mounted on the inner wall of the outer cylinder (6), an inner plug rod (14) is coaxially slidably mounted on the inner wall of the outer plug rod (11), and a suction plug (26) is fixedly mounted on the bottom end of the inner plug rod (14), and the suction plug (26) is slidably mounted on the inner wall of the outer cylinder (6). A transmission mechanism (16) is fixedly mounted on the top side wall of the outer plug rod (11) in the cavity of the extrusion plug (10). The transmission mechanism (16) comprises a swing arm (1601). One end of the swing arm (1601) is rotatably connected to a bracket of the outer plug rod (11). A transverse axis of a connecting member (15) is slidably penetrated in a through groove at the other end of the swing arm (1601). The connecting member (15) is fixedly connected to the top side wall of the inner plug rod (14).

2. A waste gas purification device for magnesium sulfate production according to claim 1, characterized in that: The side walls at both ends of the jet pipe (401) are coaxially fixedly connected with corresponding limiting rings (404), and the limiting rings (404) are slidably installed on the baffle (402) to form a rotation limiting structure, and the spray hole opened on the side wall of the jet pipe (401) is located between the two baffles (402), and the end surfaces on both sides of the baffle (402) are fixedly connected with force rods (403), and the force rods (403) are slidably inserted in the through inclined grooves opened on the thrust frame (405).

3. A waste gas purification device for magnesium sulfate production according to claim 2, characterized in that: The two through-going inclined grooves on the thrust frame (405) form an "eight"-shaped structure, and one end of the thrust frame (405) is slidably embedded in the processing cylinder (3), and a protruding rod (406) is vertically fixedly connected to the side wall of the other end of the thrust frame (405), and the inner wall of the support frame (2) is provided with symmetrically distributed wave grooves, and the protruding rod (406) is slidably inserted into the wave grooves of the support frame (2) to form a transmission structure.

4. A waste gas purification device for magnesium sulfate production according to claim 1, characterized in that: One end of a connecting pipe (9) is fixedly connected to the top side wall of the outer cylinder (6), and the other end of the connecting pipe (9) is fixedly connected to the bottom of the side wall of the box body (8). An electric cylinder (12) is arranged directly above the outer cylinder (6), and the electric cylinder (12) is vertically fixedly installed on the top of a fixing frame (13), and the lower end of the fixing frame (13) is fixedly connected to the top of the base (1), and the movable end of the electric cylinder (12) is coaxially fixedly connected to the top of the outer plug rod (11).

5. A waste gas purification device for magnesium sulfate production according to claim 1, characterized in that: The lower part of the inner plug rod (14) is provided with an air flow passage (24) and a mixing passage (25), and the lower end of the inner plug rod (14) is slidably inserted into the top of the extrusion plug (10). The two through-holes provided on the suction plug (26) are respectively connected to the air flow passage (24) and the mixing passage (25). The upper part of the side wall of the inner plug rod (14) is fixedly connected with the lower end of a one-way gas delivery valve pipe (29) and the upper end of a discharge pipe (31). The tube bodies of the one-way gas delivery valve pipe (29) and the discharge pipe (31) are both connected through the through groove on the side wall of the outer plug rod (11). The top of the air flow passage (24) is connected to the lower end of the one-way gas delivery valve pipe (29), and the top of the mixing passage (25) is connected to the upper end of the discharge pipe (31).

6. A waste gas purification device for magnesium sulfate production according to claim 5, characterized in that: The upper end of the one-way gas supply valve pipe (29) is fixedly installed through the top of the treatment cylinder (3), and the upper port of the one-way gas supply valve pipe (29) is fixedly connected to the top of the suction frame (30), and the suction frame (30) is fixedly embedded in the top of the inner wall of the treatment cylinder (3), and the bottom of the inner wall of the treatment cylinder (3) is fixedly embedded with a spray frame (32), and the bottom of the spray frame (32) is fixedly connected to the lower port of the discharge pipe (31), and the discharge pipe (31) is fixedly installed through the bottom of the treatment cylinder (3).

7. A waste gas purification device for magnesium sulfate production according to claim 1, characterized in that: A driving rod (1602) is fitted and inserted into the middle of the through groove of the swing arm (1601), and the driving rod (1602) is fixedly connected to the edge of the disk surface of the rotating disk (1603), and a transmission gear (1604) is coaxially fixedly connected to the side of the rotating disk (1603) away from the driving rod (1602), the convex shaft of the transmission gear (1604) is rotatably embedded in the bracket of the outer plug rod (11), and a tooth plate (17) is meshingly arranged on the side of the transmission gear (1604), and the upper and lower ends of the tooth plate (17) are respectively fixedly mounted on the fixing frame (13) and the outer wall of the outer cylinder (6), and symmetrically distributed thrust arms (33) are rotatably connected to both sides of the bracket of the outer plug rod (11), and the side of the thrust arm (33) away from the outer plug rod (11) is rotatably connected to the side wall of the treatment cylinder (3), and the thrust arm (33) is arranged obliquely.

8. A waste gas purification device for magnesium sulfate production according to claim 1, characterized in that: A pressure rod frame (18) is slidably embedded inside the inner plug rod (14), and a pressure spring (19) is fixedly connected between the top of the pressure rod frame (18) and the inner wall of the inner plug rod (14). A one-way blocking ring (20) and a one-way plug (23) are fixedly connected to the middle and lower ends of the pressure rod frame (18), respectively. The bottom inclined surface of the one-way blocking ring (20) is fitted at the nozzle of the spray ring (21) to form a one-way jet structure, and the one-way plug (23) is fitted at the lower end of the mixing channel (25) to form a one-way ventilation structure. The spray ring (21) is fixedly connected to the inner wall of the inner plug rod (14), and the spray ring (21) is located in the middle of the mixing channel (25). The bottom of the spray ring (21) is fixedly connected to the upper end of the infusion tube (22), and the infusion tube (22) is fixedly passed through the inner plug rod (14) and the suction plug (26).

9. A waste gas purification device for magnesium sulfate production according to claim 1, characterized in that: A drainage mechanism (27) is fixedly connected to the top edge of the suction plug (26), and the drainage mechanism (27) comprises a connecting rod (2701), the bottom end of the connecting rod (2701) is fixedly connected to the top of the suction plug (26), and the upper end of the connecting rod (2701) is slidably inserted on the movable plug (2703), and the movable plug (2703) is slidably fitted on the bottom of the inner wall of the pressurizing cylinder (28), and the pressurizing cylinder (28) is fixedly embedded in the top of the extrusion plug (10), and a drainage channel (2702) is opened inside the connecting rod (2701), and the upper end of the drainage channel (2702) faces the bottom of the pressurizing cylinder (28), and the lower end of the drainage channel (2702) faces the infusion tube (22), a return spring (2706) is fixedly connected between the top of the inner wall of the movable plug (2703) and the end of the connecting rod (2701), and the boss at the top of the connecting rod (2701) slides through the top of the movable plug (2703), a top pressure cap (2705) is fixedly connected to the top of the boss of the connecting rod (2701), and the top pressure cap (2705) is sleeved on the top of the movable plug (2703), a sealing block (2704) is fixedly connected to the bottom edge of the top pressure cap (2705), and the sealing block (2704) is fit and inserted in the through hole on the movable plug (2703) to form a closed structure, and the diameter of the top pressure cap (2705) is smaller than the inner diameter of the pressurizing cylinder (28).

10. A method for using a waste gas purification device for magnesium sulfate production, using the waste gas purification device for magnesium sulfate production according to any one of claims 1 to 9, characterized in that: The steps include: S1: External equipment sends waste gas into the treatment tube (3) through the air inlet on the side support frame (2), and the treatment liquid in the box (8) flows into the top of the outer tube (6) through the connecting pipe (9). The user controls the electric cylinder (12) to start, and the electric cylinder (12) will drive the outer plug rod (11) installed at the bottom to move synchronously. At this time, the outer plug rod (11) will drive the extrusion plug (10) to move back and forth in the outer tube (6) to generate air pressure changes, and the treatment liquid in the box (8) will be discharged. The liquid will flow into the outer cylinder (6) through the liquid inlet one-way valve tube (7), and the liquid in the outer cylinder (6) will enter the jet pipe (401) through the liquid discharge one-way valve tube (5). The jet pipes (401) on both sides of the treatment cylinder (3) will start to spray out the treatment liquid. At the same time, the outer plug rod (11) will drive the treatment cylinder (3) to reciprocate between the two support frames (2) through the rotationally connected thrust arm (33), and the treatment cylinder (3) will drive the jet pipe (401) to synchronously adjust the jet angle; S2: During the rotation of the treatment tube (3), the treatment tube (3) drives the protruding rod (406) to move along the wave groove on the inner wall of the support frame (2) through the thrust frame (405), so that the protruding rod (406) can drive the thrust frame (405) to move back and forth. During this process, the inclined groove on the thrust frame (405) applies a thrust to the force-bearing rod (403), so that the force-bearing rod (403) drives the baffle plate (402) to rotate back and forth along the limit ring (404). When the ends of the two baffle plates (402) are close to each other, the baffle plates (402) block part of the spray holes on the jet pipe (401), so that the pressure of the remaining spray holes on the jet pipe (401) increases, thereby increasing the effective spraying length of the jet pipe (401). When the two baffle plates (402) no longer block the spray holes on the jet pipe (401), the jet pipe (401) sprays a large area at a lower pressure. S3: During the movement of the outer plug rod (11), the bracket on the outer plug rod (11) drives the transmission gear (1604) to move along the toothed plate (17). At this time, the transmission gear (1604) drives the rotating disk (1603) to rotate, and the driving rod (1602) on the rotating disk (1603) drives the swing arm (1601) to swing back and forth. The swing arm (1601) drives the inner plug rod (14) to move up and down through the connecting piece (15). At this time, the inner plug rod (14) drives the suction plug (26) to move inside the extrusion plug (10). When the suction plug (26) moves upward, negative pressure is generated inside the extrusion plug (10). At this time, the exhaust gas at the top of the treatment cylinder (3) will enter the suction plug (26) through the suction bracket (30), the one-way gas supply valve pipe (29) and the air flow channel (24) in sequence. The space below the suction plug (26) moving upward will drive the connecting rod (2701) to move synchronously. At this time, the connecting rod (2701) will apply pressure to the top pressure cap (2705). Since the movable plug (2703) is arranged on the inner wall of the pressurizing cylinder (28), if the movable plug (2703) moves upward, negative pressure will be generated at the bottom of the movable plug (2703) to prevent movement. Therefore, when the connecting rod (2701) moves upward, the return spring (2706) will be compressed. At the same time, the connecting rod (2701) will drive the top pressure cap (2705) and the sealing block (2704) to move upward, so that the sealing block (2704) no longer seals the through hole on the suction plug (26). At this time, the treatment liquid in the outer cylinder (6) will enter the bottom of the movable plug (2703) under the suction of negative pressure. S4: When the suction plug (26) moves downward, the exhaust gas sucked from the bottom of the suction plug (26) will enter the mixing channel (25). At this time, the exhaust gas will push the one-way plug (23) to move upward. The one-way plug (23) drives the one-way plug ring (20) to move synchronously through the pressure rod frame (18). At this time, the one-way plug ring (20) will move away from the spray ring (21). During this process, the connecting rod (2701) will push the movable plug (2703) to move downward synchronously through the top pressure cap (2705). At this time, the movable plug (2703) will squeeze the bottom of the pressurizing cylinder (28). The liquid medicine in the pressurizing cylinder (28) will flow to the spray ring (21) through the drainage channel (2702) and the infusion tube (22), so that the spray holes on the spray ring (21) can spray out liquid medicine mist, so that the waste gas and the liquid medicine can be fully mixed and reacted in the mixing channel (25), and then the processed gas in the mixing channel (25) will be discharged to the inside of the processing cylinder (3) through the discharge pipe (31) and the spray rack (32). Under the joint action of the spray rack (32) and the suction rack (30), the mixing effect of the liquid medicine and the waste gas in the processing cylinder (3) can be further improved.

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