A kind of organic waste sulfuric acid recovery reaction device and process

Abstract

The present invention relates to the technical field of organic waste sulfuric acid recovery, and in particular to an organic waste sulfuric acid recovery reaction device, comprising a tower body, two auxiliary sprayers, an air inlet pipe, two liquid collecting boxes, a reaction tank, a solution circulation mechanism and a sprayer, wherein the two auxiliary sprayers are vertically installed in the tower body, the organic waste sulfuric acid recovery reaction device and its process, by first passing the exhaust gas entering the tower body through the solution in the liquid collecting box, and when the solution in the liquid collecting box is acidic, the solution can be automatically replaced, and during the replacement process, the corresponding exhaust port is closed by the airway blocking mechanism to avoid chlorine gas that has not been treated by the solution from being directly discharged into the tower body, and the solution replenishment process is relatively fast, and by the above method, the recovery effect of chloride is further improved, and the tower body is reduced from being corroded. In addition, the airway blocking mechanism is not controlled by electrical components, and the electrical components of the flow channel switching mechanism are not in the tower body, that is, corrosion damage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of organic waste sulfuric acid recovery, and in particular to an organic waste sulfuric acid recovery reaction device. Background Art

[0002] When treating the waste sulfuric acid of organic matter, it needs to go through primary filtration, cooling extraction, secondary filtration, tertiary filtration, and high-temperature concentration; the primary filtration is to dilute the waste sulfuric acid and then filter to remove the insoluble solid impurities to obtain the waste sulfuric acid filtered once; the cooling extraction is to cool and extract the waste sulfuric acid filtered once to remove quinoline, and take the upper liquid to obtain the waste sulfuric acid cooled and extracted; the secondary filtration is to add zinc hydroxide to the waste sulfuric acid cooled and extracted and then filter to obtain the waste sulfuric acid filtered twice and the coarse iron hydroxide; the tertiary filtration is to pass chlorine into the waste sulfuric acid filtered twice and then filter to obtain the waste sulfuric acid filtered three times and zinc chloride pyridinium salt; the high-temperature concentration is to add concentrated sulfuric acid to the waste sulfuric acid filtered three times and then concentrate at high temperature to obtain the treated sulfuric acid, and the tail gas is treated by hot alkali solution spraying. The pollutants in the tail gas are often chlorides, and these chlorides are acidic, and there will be residual chlorine in the tail gas, which will also become acidic when it meets water. When the traditional absorption tower continues to treat this tail gas, it will be easily corroded, and long-term corrosion will cause the absorption tower to calcify and be damaged. In addition, the traditional absorption tower has a poor treatment effect on chlorides, which causes some chlorides to enter the subsequent absorption device, increasing the cost of waste gas recovery. Therefore, it is necessary to design an organic waste sulfuric acid recovery reaction device and process to increase the treatment effect on chlorides and minimize the corrosion of the absorption tower. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide an organic waste sulfuric acid recovery reaction device and process thereof, which can increase the treatment effect on chlorides and minimize the corrosion of the absorption tower.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: the present invention provides an organic waste sulfuric acid recovery reaction device, comprising a tower body, two auxiliary sprayers, an air inlet pipe, two liquid collecting boxes, a reaction tank, a solution circulation mechanism and a sprayer, the two auxiliary sprayers are vertically installed in the tower body, the two liquid collecting boxes are respectively installed below the two auxiliary sprayers, the sprayer is located at the top of the two auxiliary sprayers, the sprayer and the two auxiliary sprayers are both connected to the liquid outlet of the solution circulation mechanism, the air inlet pipe is installed in the tower body, the air outlet of the air inlet pipe is inserted into the solution of the liquid collecting box, the air inlet of the air inlet pipe is connected to the air outlet of the reaction tank, the bottom of the liquid collecting box is provided with a liquid outlet pipe connected to the interior thereof, the liquid outlet of the liquid outlet pipe passes through the tower body and is connected to the electromagnetic valve, and a pH value detection sensor is provided in the liquid collecting box.

[0005] Preferably, it also includes a flow channel switching mechanism, a gas diffusion pipe is arranged on the top of the air inlet pipe, an exhaust port is arranged on the air inlet pipe, the exhaust port is connected to the air inlet of the gas diffusion pipe, the air outlet of the gas diffusion pipe is inserted in the liquid collecting box, the air channel blocking mechanism is installed on the gas diffusion pipe, the air channel blocking mechanism is used to control the opening and closing of the exhaust port, the flow channel switching mechanism is fixedly installed in the inspection port of the tower body, the auxiliary sprayer is connected to the water outlet of the solution circulation mechanism through the flow channel switching mechanism, the flow channel switching mechanism is used to control the connection or closing between the auxiliary sprayer and the water outlet of the solution circulation mechanism, the flow channel switching mechanism is provided with a liquid infusion pipe, and the flow channel switching mechanism can control the connection or closing of the liquid infusion pipe and the water outlet of the solution circulation mechanism;

[0006] When the solution in the liquid collection box processes the exhaust gas, the airway blocking mechanism opens the exhaust port, and the flow channel switching mechanism controls the auxiliary sprayer to connect with the water outlet of the solution circulation mechanism;

[0007] When the solution in the liquid collection box is discharged outward, the airway blocking mechanism blocks the exhaust port, and the flow channel switching mechanism closes the liquid infusion pipe and the auxiliary sprayer;

[0008] When it is necessary to add solution to the liquid collecting box, the airway blocking mechanism blocks the exhaust port, and the flow channel switching mechanism controls the connection between the liquid replenishing tube and the water outlet of the solution circulation mechanism.

[0009] Preferably, the gas diffusion duct comprises an annular tube, a sleeve and two sealing rings, the annular tube is placed in the liquid collecting box, and the annular tube is provided with a plurality of gas outlets along the circumferential direction, the plurality of gas outlets are all located below the liquid surface of the liquid collecting box, the sleeve is located at the center of the annular tube, and the middle of the sleeve is connected to the inside of the annular tube through a bend, the sleeve is coaxially arranged with the air inlet pipe, the airway blocking mechanism comprises a vertically movable baffle ring, the two sealing rings are respectively fixedly mounted at the upper and lower ends of the sleeve, the inner edges of the two sealing rings fit with the outer edges of the baffle rings, the inner edges of the baffle rings are coplanarly arranged with the outer edges of the exhaust port, and the baffle rings are provided with air holes;

[0010] When the solution in the liquid collecting box treats the waste gas, the exhaust port is connected to the air vent;

[0011] When the solution in the liquid collecting box is discharged outward, the end of the exhaust port contacts the inner surface of the retaining ring, and the exhaust port is located below the air vent;

[0012] When it is necessary to add solution into the liquid collecting box, the end of the exhaust port contacts the inner surface of the retaining ring, and the exhaust port is located above the air vent;

[0013] Two sealing rings 2 are fixedly arranged on the outer edge of the intake pipe. The two sealing rings 2 are located at the upper and lower sides of the exhaust port. The outer edges of the sealing rings 2 are fitted with the inner edge of the retaining ring.

[0014] Preferably, the airway blocking mechanism is the aforementioned baffle ring, the top of which is fixedly connected to the auxiliary sprayer, the flow channel switching mechanism comprises a lifting mechanism, a cover plate 1, a slide rail, a liquid guide tube and a cover plate 2, the slide rail is fixedly installed on the inner wall of the inspection port of the tower body, both the cover plate 1 and the cover plate 2 can be vertically slidably installed in the slide rail, the middle part of the cover plate 2 is connected to the liquid outlet of the solution circulation mechanism, the liquid inlet of the auxiliary sprayer is connected to the middle part of the cover plate 1, and when the exhaust port is connected to the air vent, the auxiliary sprayer is coaxially arranged with the liquid outlet of the solution circulation mechanism, and a liquid guide tube connected to the liquid infusion tube is arranged on the top of the auxiliary sprayer.

[0015] Preferably, the lifting mechanism is an electric push rod, which is fixedly mounted on the outer wall of the tower body, and the output end of the lifting mechanism passes through the outer wall of the tower body inspection opening and is fixedly connected to the cover plate.

[0016] Preferably, an annular pad is provided at the bottom of the annular tube, the bottom of the annular pad is in contact with the inner edge bottom of the liquid collecting box, a liquid outlet ring hole is opened at the bottom of the annular tube, the liquid outlet ring hole passes through the annular pad, and a lifting ring is fixedly provided on the outer edge of the retaining ring, and the lifting ring is located below the sealing ring.

[0017] Preferably, a rotating mechanism is also included, which is used to drive the ring tube to rotate. The rotating mechanism includes a rotating driver, a ring plate and multiple extension plates. The multiple extension plates are fixedly connected to the gas diffusion pipe, and the outer edges of the multiple extension plates are in contact with the inner edge of the liquid collecting box. The ring plate is fixedly installed on the bottom of the multiple extension plates. Multiple clamping columns are provided at the bottom of the ring plate. The rotating driver is installed on the tower body, and the rotating driver is located below the liquid collecting box. The rotating driver is connected to the clamping columns in a transmission manner. When the gas diffusion pipe is pulled upward by the retaining ring, the multiple clamping columns are separated from the rotating driver.

[0018] Preferably, the rotary driver includes a rotating disk, a rotating shaft and a driving motor. The rotating disk is located below the liquid collecting box. A plurality of push pins are fixedly arranged on the rotating disk. The plurality of push pins are evenly distributed along the circumferential direction of the rotating disk. The push pins are used to push the plurality of clamping pins to rotate. One end of the rotating shaft passes through the outer wall of the tower body and is fixedly connected to the rotating disk. The driving motor is fixedly installed on the outside of the tower body, and the output end of the driving motor is fixedly connected to the rotating shaft.

[0019] A process for recovering organic waste sulfuric acid from a reaction device, characterized in that it comprises the following steps:

[0020] Step 1: After the reaction in the reactor is completed, the gas valve on the top of the reactor is opened, and the exhaust gas will enter the tower body along the air inlet pipe, and after the solution treatment is completed along the liquid collecting box, the exhaust gas will be discharged from the solution, and then sprayed by the auxiliary sprayer and the sprayer to completely purify the exhaust gas;

[0021] Step 2: The driving motor controls the rotating disk to rotate, so that the rotating disk drives the annular tube to rotate, so that the air outlet of the annular tube continuously changes position;

[0022] Step 3: When the pH value in the liquid collecting box is detected by the pH value detection sensor, if the pH value is less than 8, the electromagnetic valve connected to the liquid outlet pipe is opened by the controller, and the lifting mechanism pushes the cover plate 1 to move upward to the top, and the cover plate 1 covers the water outlet of the solution circulation mechanism, so that the auxiliary sprayer and the sprayer cannot spray water. The auxiliary sprayer moves upward and drives the airway blocking mechanism to move upward, so that the exhaust port is closed, the ring pipe is slightly lifted upward, and the contact between the clamping column and the push column is separated;

[0023] Step 4: When the solution in the liquid collecting box is discharged, the lifting mechanism pulls the cover plate to move downward to the lowest part, the liquid replenishing pipe is connected to the water outlet of the solution circulation mechanism, and the auxiliary sprayer moves downward while driving the airway blocking mechanism to move downward, so that the exhaust port is closed, and the solution discharged from the liquid replenishing pipe automatically replenishes the liquid collecting box;

[0024] Step 5: When the liquid in the liquid collecting box is replenished, the lifting mechanism pushes the cover plate to move upward to the middle position, the auxiliary sprayer is connected to the water outlet of the solution circulation mechanism, and the exhaust port is opened.

[0025] The beneficial effects of the present invention are as follows: the organic waste sulfuric acid recovery reaction device and its process, by first passing the waste gas entering the tower body through the solution in the liquid collecting box, chlorine is dissolved in the solution, and part of the chloride can also be dissolved in the solution, so that the sodium hydroxide in the solution can react with the acidic substance, that is, the waste gas is pre-treated, the waste gas recovery effect is increased, and the chloride entering the subsequent absorption device is reduced. It can also reduce the diffusion of acidic gas in the tower body and protect the absorption tower. The liquid collecting box adopts a ceramic structure and can be used for a long time.

[0026] When the solution in the liquid collecting box is acidic, the solution can be automatically replaced, and during the replacement process, the corresponding exhaust port is closed by the airway blocking mechanism to prevent the chlorine gas that has not been treated by the solution from being directly discharged into the tower body, and the solution replenishment process is relatively fast. Through the above method, the chloride recovery effect is further improved, and the tower body is reduced from being corroded. In addition, the airway blocking mechanism is not controlled by electrical components, and the electrical components of the flow channel switching mechanism are not in the tower body, which avoids corrosion damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0030] Figure 3 It is a partial perspective view of the present invention.

[0031] Figure 4 This is a schematic diagram of the installation position of the liquid collecting box and the liquid outlet pipe.

[0032] Figure 5 Schematic diagram of the structural location of the gas diffusion pipe.

[0033] Figure 6 It is a partial cross-sectional view of the present invention.

[0034] Figure 7 A schematic diagram of the partial three-dimensional structure of the intake pipe.

[0035] Figure 8 This is a schematic diagram of the three-dimensional structure of the gas diffusion pipe.

[0036] Fig. 9 It is a schematic diagram of the three-dimensional structure of the airway blocking mechanism.

[0037] Fig.10 It is a schematic diagram of the three-dimensional structural decomposition of the flow channel switching mechanism.

[0038] Fig.11 It is a schematic diagram of the partial three-dimensional structure of the rotating mechanism.

[0039] Explanation of the accompanying drawings: 1. tower body; 2. auxiliary sprayer; 3. air inlet pipe; 3a. exhaust port; 3b. sealing ring 2; 4. liquid collecting box; 4a. liquid outlet pipe; 5. flow channel switching mechanism; 5a. lifting mechanism; 5b. cover plate 1; 5c. slide rail; 5d. liquid guide tube; 5e. cover plate 2; 6. air channel blocking mechanism; 6a. retaining ring; 6a1. air vent; 6a2. lifting ring; 7. gas diffusion duct; 7a. ring pipe; 7a1. liquid outlet ring hole; 7b. sleeve; 7c. sealing ring 1; 8. liquid replenishment tube; 9. rotating mechanism; 9a. extension plate; 9b. ring plate; 9c. clamping column; 9d. rotating disk; 9d1. push column; 9e. rotating shaft; 9f. driving motor; 10. reaction tank; 11. solution circulation mechanism; 12. sprayer. DETAILED DESCRIPTION

[0040] 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.

[0041] Embodiment: The present invention provides an organic waste sulfuric acid recovery reaction device, such as Figure 1-4 As shown, it includes a tower body 1, two auxiliary sprayers 2, an air inlet pipe 3, two liquid collecting boxes 4, a reaction tank 10, a solution circulation mechanism 11 and a sprayer 12. The two auxiliary sprayers 2 are vertically installed in the tower body 1, and the two liquid collecting boxes 4 are respectively installed below the two auxiliary sprayers 2. The sprayer 12 is located at the top of the two auxiliary sprayers 2. The sprayer 12 and the two auxiliary sprayers 2 are connected to the liquid outlet of the solution circulation mechanism 11. The liquid flowing out of the solution circulation mechanism 11 contains 20 to 30 mass fractions of % sodium hydroxide solution will enter the sprayer 12 and the auxiliary sprayer 2, and then be sprayed out along the sprayer 12 and the auxiliary sprayer 2. The air inlet pipe 3 is installed in the tower body 1, and the air outlet of the air inlet pipe 3 is inserted in the solution of the liquid collecting box 4. The air inlet of the air inlet pipe 3 is connected with the air outlet of the reaction tank 10. When the reaction of the reaction tank 10 is completed, the gas valve on the top of the reaction tank 10 is opened, and the waste gas will enter the tower body 1 along the air inlet pipe 3. After being treated by the solution of the liquid collecting box 4, the waste gas will be discharged from the solution. The solution stored in the liquid collecting box 4 is a sodium hydroxide solution, and the chloride is reacted by the sodium hydroxide solution, thereby realizing the first step of waste gas treatment. The bottom of the liquid collecting box 4 is provided with a liquid outlet pipe 4a connected to the inside thereof, the liquid outlet of the liquid outlet pipe 4a passes through the tower body 1 and is connected to the electromagnetic valve, and a pH value detection sensor is provided in the liquid collecting box 4, and the pH value detection sensor is used to detect the pH value of the solution in the liquid collecting box 4, when the pH value detection sensor is used to detect the pH value of the solution in the liquid collecting box 4, the pH value detection sensor is connected to the controller through a signal line, and the pH value detection sensor is not shown in the figure, when the pH value detection sensor detects that the pH value is 7-8, the signal is transmitted to the controller, and the controller controls the electromagnetic valve to open, and the solution in the liquid collecting box 4 will be discharged outward along the liquid outlet pipe 4a and the electromagnetic valve. The liquid collecting box 4 is made of ceramic material to reduce the rate of acid and alkali corrosion.

[0042] After the solution in the liquid collecting box 4 is discharged, it will be difficult to replenish the solution in the liquid collecting box 4. In addition, during the solution replenishment process, if the air inlet pipe 3 continues to replenish gas into the liquid collecting box 4 without solution, this will inevitably reduce the effect of gas purification, so that the gas discharged along the tower body 1 still contains pollutants. In order to solve the above problem, for this reason, Figure 5-7 As shown, it also includes a flow channel switching mechanism 5, a gas diffusion pipe 7 is arranged on the top of the air inlet pipe 3, an exhaust port 3a is arranged on the air inlet pipe 3, the exhaust port 3a is connected to the air inlet of the gas diffusion pipe 7, the air outlet of the gas diffusion pipe 7 is inserted in the liquid collecting box 4, the air channel blocking mechanism 6 is installed on the gas diffusion pipe 7, the air channel blocking mechanism 6 is used to control the opening and closing of the exhaust port 3a, the flow channel switching mechanism 5 is fixedly installed in the inspection port of the tower body 1 to prevent the alkali solution from directly wetting the flow channel switching mechanism 5, the auxiliary sprayer 2 is connected to the water outlet of the solution circulation mechanism 11 through the flow channel switching mechanism 5, the liquid discharged along the solution circulation mechanism 11 passes through the flow channel switching mechanism 5 and enters the auxiliary sprayer 2, the flow channel switching mechanism 5 is used to control the connection or closing between the auxiliary sprayer 2 and the water outlet of the solution circulation mechanism 11, and a liquid infusion pipe 8 is arranged on the flow channel switching mechanism 5, and the flow channel switching mechanism 5 can control the connection or closing of the liquid infusion pipe 8 and the water outlet of the solution circulation mechanism 11;

[0043] When the solution in the liquid collecting box 4 treats the exhaust gas, the airway blocking mechanism 6 opens the exhaust port 3a, and the exhaust gas can enter the gas diffusion pipe 7 along the exhaust port 3a, and then enter the solution in the liquid collecting box 4 along the gas diffusion pipe 7. The flow channel switching mechanism 5 controls the auxiliary sprayer 2 to be connected with the water outlet of the solution circulation mechanism 11. At this time, the solution will be sprayed along the auxiliary sprayer 2, thereby treating the chloride in the exhaust gas.

[0044] When the solution in the liquid collecting box 4 is discharged outward, the airway blocking mechanism 6 blocks the exhaust port 3a, and the flow channel switching mechanism 5 closes the liquid replenishing pipe 8 and the auxiliary sprayer 2. In this case, the auxiliary sprayer 2 cannot spray the solution, and the exhaust gas cannot be discharged along the exhaust port 3a, that is, the exhaust gas that has not been filtered by the solution is prevented from being directly discharged into the tower body 1;

[0045] When it is necessary to add solution to the liquid collecting box 4, the airway blocking mechanism 6 blocks the exhaust port 3a, and the flow channel switching mechanism 5 controls the connection between the liquid replenishing tube 8 and the water outlet of the solution circulation mechanism 11. In this case, the solution sprayed by the solution circulation mechanism 11 will quickly flow into the liquid collecting box 4 along the liquid replenishing tube 8 to quickly replenish the solution in the liquid collecting box 4. After a preset time, the flow channel switching mechanism 5 switches the auxiliary sprayer 2 to connect with the solution circulation mechanism 11. It should be noted that the solution overflowing from the liquid collecting box 4 will flow to the bottom of the tower body 1, and then enter the solution circulation mechanism 11 along the liquid outlet of the tower body 1 for circulation.

[0046] Since the gas diffusion pipe 7 is connected to the exhaust port 3a, it is difficult to realize the airway blocking mechanism 6 to block the gas diffusion pipe 7 and the exhaust port 3a, and the gas diffusion pipe 7 also needs to satisfy the function of being able to evenly diffuse the exhaust gas discharged from the exhaust port 3a into the solution of the liquid collecting box 4. Figure 6 , Figure 8 and Fig. 9 As shown, the gas diffusion duct 7 includes an annular tube 7a, a sleeve 7b and two sealing rings 7c. The annular tube 7a is placed in the liquid collecting box 4, and the annular tube 7a is provided with a plurality of gas outlets along the circumferential direction, and the plurality of gas outlets are all located below the liquid surface of the liquid collecting box 4. The sleeve 7b is located at the center of the annular tube 7a, and the middle part of the sleeve 7b is connected to the inside of the annular tube 7a through a bend pipe. The sleeve 7b is coaxially arranged with the air inlet pipe 3. The airway blocking mechanism 6 includes a vertically movable baffle ring 6a. Two sealing rings 7c are respectively fixedly installed at the upper and lower ends of the sleeve 7b. The inner edges of the two sealing rings 7c are fitted with the outer edges of the baffle ring 6a. The inner edge of the baffle ring 6a is coplanarly arranged with the outer edge of the exhaust port 3a. The baffle ring 6a is provided with an air vent 6a1.

[0047] When the solution in the liquid collecting box 4 processes the waste gas, the exhaust port 3a is connected to the air vent 6a1, and the waste gas discharged along the exhaust port 3a can enter the space formed by the ring pipe 7a and the sleeve 7b;

[0048] When the solution in the liquid collecting box 4 is discharged outward, the end of the exhaust port 3a contacts the inner surface of the baffle ring 6a, and the exhaust port 3a is located below the air hole 6a1, that is, the baffle ring 6a is pulled upward, and the inner surface of the baffle ring 6a covers the exhaust port 3a, so that the exhaust port 3a cannot discharge exhaust gas;

[0049] When it is necessary to add solution to the liquid collecting box 4, the end of the exhaust port 3a contacts the inner surface of the baffle ring 6a, and the exhaust port 3a is located above the air vent 6a1, that is, the baffle ring 6a is pushed downward, and the inner surface of the baffle ring 6a covers the exhaust port 3a, so that the exhaust port 3a cannot discharge exhaust gas;

[0050] like Figure 6 As shown, two sealing rings 3b are fixedly arranged on the outer edge of the intake pipe 3, and the two sealing rings 3b are located on the upper and lower sides of the exhaust port 3a. The outer edge of the sealing ring 3b is in contact with the inner edge of the retaining ring 6a. Through the above structure, when the exhaust port 3a discharges exhaust gas, the exhaust gas cannot be discharged outward along the gap between the retaining ring 6a and the intake pipe 3.

[0051] Although the required functions can be achieved by the above method, if the movement of the airway blocking mechanism 6 is all controlled electrically, this will cause the internal environment of the tower body 1 to easily corrode the airway blocking mechanism 6 with acid and alkali, especially the wires connected to the airway blocking mechanism 6. And the movement of the flow channel switching mechanism 5 needs to be synchronized with the airway blocking mechanism 6 in multiple states in order to reduce the control burden of the equipment. For this reason, the airway blocking mechanism 6 is the retaining ring 6a, and the top of the retaining ring 6a is fixedly connected to the auxiliary sprinkler 2. When the auxiliary sprinkler 2 moves up and down, it can synchronously drive the airway blocking mechanism 6 to move up and down. The flow channel switching mechanism 5 includes a lifting mechanism 5a, a cover plate 1 5b, a slide rail 5c, a liquid guide tube 5d and a cover plate 2 5e. The slide rail 5c is fixedly installed on the inner wall of the inspection port of the tower body 1. The cover plate 1 5b and the cover plate 2 5e can be vertically slidably installed in the slide rail 5c. The middle part of the cover plate 2 5e is connected to the liquid outlet of the solution circulation mechanism 11, and the liquid inlet of the auxiliary sprayer 2 is connected to the middle part of the cover plate 1 5b. When the exhaust port 3a is connected to the air vent 6a1, the auxiliary sprayer 2 is coaxially arranged with the liquid outlet of the solution circulation mechanism 11, so that the solution can enter the auxiliary sprayer 2. The top of the auxiliary sprayer 2 is provided with a liquid guide tube 5d connected to the liquid infusion tube 8. When the lifting mechanism 5a pushes the cover plate 5b upward, the bottom of the cover plate 5b will cover the liquid outlet of the solution circulation mechanism 11, so that the solution cannot be discharged. At the same time, the rise of the cover plate 5b will drive the auxiliary sprayer 2 to rise. At this time, the baffle ring 6a rises and covers the exhaust port 3a. When the lifting mechanism 5a pulls the cover plate 5b downward, the liquid guide tube 5d is connected to the liquid outlet of the solution circulation mechanism 11, so that the solution can be discharged into the liquid collection box 4 along the liquid infusion tube 8. At the same time, the baffle ring 6a moving downward will also cover the exhaust port 3a. That is, the movement of the flow channel switching mechanism 5 is synchronized with the movement of the airway blocking mechanism 6, and the airway blocking mechanism 6 does not need to be electrically controlled, but only needs to be fixedly installed on the auxiliary sprayer 2.

[0052] like Fig.10 As shown, the lifting mechanism 5a is an electric push rod, which is fixedly installed on the outer wall of the tower body 1. The output end of the lifting mechanism 5a passes through the outer wall of the inspection port of the tower body 1 and is fixedly connected to the cover plate 5b. In this way, electrical components and wires are not installed in the tower body 1, which increases the service life of the equipment.

[0053] Since the annular tube 7a is below the liquid level of the liquid collecting box 4, the solution stored in the annular tube 7a cannot be discharged when the solution is replaced in the liquid collecting box 4, resulting in that the pH of the solution will be affected when the solution is subsequently added through the liquid infusion tube 8. Figure 6 As shown, an annular pad is provided at the bottom of the annular tube 7a, the bottom of the annular pad is in contact with the inner edge bottom of the liquid collecting box 4, and a liquid outlet annular hole 7a1 is provided at the bottom of the annular tube 7a, and the liquid outlet annular hole 7a1 passes through the annular pad. Figure 6 and Fig. 9 As shown, a lifting ring 6a2 is fixedly arranged on the outer edge of the baffle ring 6a, and the lifting ring 6a2 is located below the sealing ring 7c. When the baffle ring 6a is lifted upward by the auxiliary sprayer 2, the baffle ring 6a will lift the sealing ring 7c upward through the lifting ring 6a2 in the final stage of the lifting process, that is, lift the entire gas diffusion pipe 7 upward, so that the bottom of the annular pad leaves the liquid collecting box 4. The liquid stored in 7a can be discharged into the outer liquid collecting box 4 along the liquid outlet ring hole 7a1, that is, avoid the storage of solution in the liquid collecting box 4.

[0054] When the annular tube 7a sprays chloride outward, the chloride can quickly dissolve and react with the solution in the liquid collecting box 4. However, since the solution is in a static state, the reacted solution cannot quickly flow and replace with the unreacted solution, so that more chloride will still volatilize upward. Figure 6 As shown, it also includes a rotating mechanism 9, which is used to drive the ring tube 7a to rotate. The rotating mechanism 9 includes a rotating driver, a ring plate 9b and multiple extension plates 9a. The multiple extension plates 9a are fixedly connected to the gas diffusion pipe 7, and the outer edges of the multiple extension plates 9a are all in contact with the inner edges of the liquid collecting box 4. The ring plate 9b is fixedly installed at the bottom of the multiple extension plates 9a. The bottom of the ring plate 9b is provided with multiple clamping columns 9c. The rotating driver is installed on the tower body 1, and the rotating driver is located below the liquid collecting box 4 to avoid the solution from spraying the rotating driver, thereby extending the life of the rotating driver. The rotary driver is in transmission connection with the clamping column 9c. The rotary driver is used for rotational driving, which drives the plurality of clamping columns 9c to move, so that the clamping column 9c drives the gas diffusion pipe 7 to rotate through the ring plate 9b and the extension plate 9a. During the rotation process, the ring tube 7a changes position in the solution, thereby improving the reaction efficiency of the solution and the chloride and reducing the upward volatilization of the chloride in the solution. When the gas diffusion pipe 7 is pulled upward by the retaining ring 6a, the plurality of clamping columns 9c are separated from the rotary driver, so that the gas diffusion pipe 7 lifted upward will not be driven to rotate.

[0055] like Fig.11As shown, the rotary driver includes a rotating disk 9d, a rotating shaft 9e and a driving motor 9f. The rotating disk 9d is located below the liquid collecting box 4. A plurality of push pins 9d1 are fixedly arranged on the rotating disk 9d. The plurality of push pins 9d1 are evenly distributed along the circumferential direction of the rotating disk 9d. The push pins 9d1 are used to push a plurality of clamping posts 9c to rotate. One end of the rotating shaft 9e passes through the outer wall of the tower body 1 and is fixedly connected to the rotating disk 9d. The driving motor 9f is fixedly installed on the outer side of the tower body 1, and the output end of the driving motor 9f is fixedly connected to the rotating shaft 9e. By controlling the driving motor 9f to work, the driving motor 9f drives the rotating disk 9d to rotate through the rotating shaft 9e, and the plurality of clamping posts 9c can be pushed to rotate through the plurality of push pins 9d1. When the clamping post 9c is pulled upward, the push pin 9d1 will not be able to continue to push the clamping post 9c.

[0056] A process using the above-mentioned organic waste sulfuric acid recovery reaction device comprises the following steps:

[0057] Step 1: After the reaction in the reaction tank 10 is completed, the gas valve on the top of the reaction tank 10 is opened, and the waste gas will enter the tower body 1 along the air inlet pipe 3, and after the solution treatment along the liquid collecting box 4 is completed, the waste gas will be discharged from the solution, and then sprayed by the auxiliary sprayer 2 and the sprayer 12 to completely purify the waste gas;

[0058] Step 2: The driving motor 9f controls the rotating disk 9d to rotate, so that the rotating disk 9d drives the annular tube 7a to rotate, so that the air outlet of the annular tube 7a continuously changes position;

[0059] Step 3: When the pH value in the liquid collecting box 4 is detected by the pH value detection sensor, if the pH value is less than 8, the electromagnetic valve connected to the liquid outlet pipe 4a is opened by the controller, and the lifting mechanism 5a pushes the cover plate 1 5b to move upward to the top, and the cover plate 1 5b covers the water outlet of the solution circulation mechanism 11, so that the auxiliary sprayer 2 and the sprayer 12 cannot spray water. The auxiliary sprayer 2 moves upward and drives the airway blocking mechanism 6 to move upward, so that the exhaust port 3a is closed, the ring tube 7a is slightly lifted upward, and the contact between the clamping column 9c and the push column 9d1 is separated;

[0060] Step 4: When the solution in the liquid collecting box 4 is discharged, the lifting mechanism 5a pulls the cover plate 5b downward to the lowest part, the liquid replenishing tube 8 is connected to the water outlet of the solution circulation mechanism 11, and the auxiliary sprayer 2 moves downward while driving the airway blocking mechanism 6 to move downward, so that the exhaust port 3a is closed, and the solution discharged from the liquid replenishing tube 8 automatically replenishes the liquid collecting box 4.

[0061] Step 5: When the liquid in the liquid collecting box 4 is replenished, the lifting mechanism 5a pushes the cover plate 5b to move upward to the middle position, the auxiliary sprayer 2 is connected to the water outlet of the solution circulation mechanism 11, and the exhaust port 3a is opened.

[0062] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An organic waste sulfuric acid recovery reaction device, characterized in that: The invention comprises a tower body (1), two auxiliary sprayers (2), an air inlet pipe (3), two liquid collecting boxes (4), a reaction tank (10), a solution circulation mechanism (11) and a sprayer (12), wherein the two auxiliary sprayers (2) are vertically installed in the tower body (1), the two liquid collecting boxes (4) are respectively installed below the two auxiliary sprayers (2), the sprayer (12) is located on the top of the two auxiliary sprayers (2), and the sprayer (12) and the two auxiliary sprayers (2) are connected to the tower body (1). The liquid outlet of the solution circulation mechanism (11) is connected, the air inlet pipe (3) is installed in the tower body (1), the air outlet of the air inlet pipe (3) is inserted into the solution in the liquid collecting box (4), the air inlet of the air inlet pipe (3) is connected to the air outlet of the reaction tank (10), the bottom of the liquid collecting box (4) is provided with a liquid outlet pipe (4a) connected to the interior thereof, the liquid outlet of the liquid outlet pipe (4a) passes through the tower body (1) and is connected to the electromagnetic valve, and a pH value detection sensor is provided in the liquid collecting box (4); The apparatus further comprises a flow channel switching mechanism (5), a gas diffusion pipe (7) being arranged at the top of the air inlet pipe (3), an exhaust port (3a) being arranged on the air inlet pipe (3), the exhaust port (3a) being connected to the air inlet of the gas diffusion pipe (7), the air outlet of the gas diffusion pipe (7) being inserted into the interior of the liquid collecting box (4), an air channel blocking mechanism (6) being installed on the gas diffusion pipe (7), the air channel blocking mechanism (6) being used to control the opening and closing of the exhaust port (3a), and the flow channel switching mechanism (5). ) is fixedly installed in the inspection port of the tower body (1), the auxiliary sprayer (2) is connected to the water outlet of the solution circulation mechanism (11) through the flow channel switching mechanism (5), the flow channel switching mechanism (5) is used to control the connection or closing between the auxiliary sprayer (2) and the water outlet of the solution circulation mechanism (11), and a liquid replenishing pipe (8) is provided on the flow channel switching mechanism (5), and the flow channel switching mechanism (5) can control the connection or closing between the liquid replenishing pipe (8) and the water outlet of the solution circulation mechanism (11); When the solution in the liquid collecting box (4) processes the exhaust gas, the airway blocking mechanism (6) opens the exhaust port (3a), and the flow channel switching mechanism (5) controls the auxiliary sprayer (2) to connect with the water outlet of the solution circulation mechanism (11); When the solution in the liquid collecting box (4) is discharged outward, the airway blocking mechanism (6) blocks the exhaust port (3a), and the flow channel switching mechanism (5) closes the liquid infusion tube (8) and the auxiliary sprayer (2); When it is necessary to replenish the solution in the liquid collection box (4), the airway blocking mechanism (6) blocks the exhaust port (3a), and the flow channel switching mechanism (5) controls the liquid replenishing tube (8) to be connected to the water outlet of the solution circulation mechanism (11); The gas diffusion pipe (7) comprises an annular tube (7a), a sleeve (7b) and two sealing rings (7c); the annular tube (7a) is placed in a liquid collecting box (4), and the annular tube (7a) is provided with a plurality of gas outlets along a circumferential direction, and the plurality of gas outlets are all located below the liquid surface of the liquid collecting box (4); the sleeve (7b) is located at the center of the annular tube (7a), and the middle of the sleeve (7b) is connected to the inside of the annular tube (7a) through a bend pipe; the sleeve (7b) is coaxially arranged with the air inlet pipe (3); the airway blocking mechanism (6) comprises a vertically movable retaining ring (6a); the two sealing rings (7c) are respectively fixedly mounted at the upper and lower ends of the sleeve (7b); the inner edges of the two sealing rings (7c) are in contact with the outer edges of the retaining ring (6a); the inner edges of the retaining ring (6a) are coplanarly arranged with the outer edges of the exhaust port (3a); and the retaining ring (6a) is provided with a vent hole (6a1); When the solution in the liquid collecting box (4) processes the waste gas, the exhaust port (3a) is connected to the air vent (6a1); When the solution in the liquid collecting box (4) is discharged outward, the end of the exhaust port (3a) contacts the inner surface of the retaining ring (6a), and the exhaust port (3a) is located below the air vent (6a1); When it is necessary to add solution to the liquid collecting box (4), the end of the exhaust port (3a) contacts the inner surface of the retaining ring (6a), and the exhaust port (3a) is located above the air vent (6a1); Two sealing rings (3b) are fixedly arranged on the outer edge of the air inlet pipe (3), the two sealing rings (3b) are located on the upper and lower sides of the exhaust port (3a), and the outer edge of the sealing ring (3b) is in contact with the inner edge of the retaining ring (6a); The top of the retaining ring (6a) is fixedly connected to the auxiliary sprayer (2); the flow channel switching mechanism (5) comprises a lifting mechanism (5a), a cover plate 1 (5b), a slide rail (5c), a liquid guide tube (5d) and a cover plate 2 (5e); the slide rail (5c) is fixedly installed on the inner wall of the inspection port of the tower body (1); the cover plate 1 (5b) and the cover plate 2 (5e) can be vertically slidably installed in the slide rail (5c); the middle of the cover plate 2 (5e) is connected to the liquid outlet of the solution circulation mechanism (11); the liquid inlet of the auxiliary sprayer (2) is connected to the middle of the cover plate 1 (5b); when the exhaust port (3a) is connected to the air vent (6a1), the auxiliary sprayer (2) and the liquid outlet of the solution circulation mechanism (11) are coaxially arranged; and a liquid guide tube (5d) connected to the liquid replenishing tube (8) is arranged at the top of the auxiliary sprayer (2); It also includes a rotating mechanism (9), the rotating mechanism (9) is used to drive the ring tube (7a) to rotate, the rotating mechanism (9) includes a rotating driver, a ring plate (9b) and a plurality of extension plates (9a), the plurality of extension plates (9a) are fixedly connected to the gas diffusion pipe (7), the outer edges of the plurality of extension plates (9a) are in contact with the inner edges of the liquid collecting box (4), the ring plate (9b) is fixedly mounted on the bottom of the plurality of extension plates (9a), a plurality of clamping columns (9c) are arranged on the bottom of the ring plate (9b), the rotating driver is mounted on the tower body (1), and the rotating driver is located below the liquid collecting box (4), the rotating driver is in driving connection with the clamping columns (9c), and when the gas diffusion pipe (7) is pulled upward by the retaining ring (6a), the plurality of clamping columns (9c) are separated from the rotating driver; The rotary driver comprises a rotary disk (9d), a rotary shaft (9e) and a driving motor (9f); the rotary disk (9d) is located below the liquid collecting box (4); a plurality of push pins (9d1) are fixedly arranged on the rotary disk (9d); the plurality of push pins (9d1) are evenly distributed along the circumferential direction of the rotary disk (9d); the push pins (9d1) are used to push a plurality of clamping pins (9c) to rotate; one end of the rotary shaft (9e) passes through the outer wall of the tower body (1) and is fixedly connected to the rotary disk (9d); the driving motor (9f) is fixedly mounted on the outer side of the tower body (1); and the output end of the driving motor (9f) is fixedly connected to the rotary shaft (9e).

2. The organic waste sulfuric acid recovery reaction device according to claim 1, characterized in that: The lifting mechanism (5a) is an electric push rod, which is fixedly mounted on the outer wall of the tower body (1). The output end of the lifting mechanism (5a) passes through the outer wall of the inspection opening of the tower body (1) and is fixedly connected to the cover plate 1 (5b).

3. The organic waste sulfuric acid recovery reaction device according to claim 1, characterized in that: An annular gasket is provided at the bottom of the annular tube (7a), the bottom of the annular gasket contacts the bottom of the inner edge of the liquid collecting box (4), a liquid outlet annular hole (7a1) is provided at the bottom of the annular tube (7a), the liquid outlet annular hole (7a1) penetrates the annular gasket, and a lifting ring (6a2) is fixedly provided on the outer edge of the retaining ring (6a), the lifting ring (6a2) is located below the sealing ring 1 (7c).

4. A process using the organic waste sulfuric acid recovery reaction device according to claim 1, characterized in that: The following steps are involved: Step 1: After the reaction in the reaction tank (10) is completed, the gas valve on the top of the reaction tank (10) is opened, and the waste gas enters the tower body (1) along the air inlet pipe (3), and after the solution treatment is completed along the liquid collecting box (4), the waste gas is discharged from the solution, and then sprayed by the auxiliary sprayer (2) and the sprayer (12), so that the waste gas is completely purified; Step 2: The driving motor (9f) controls the rotating disk (9d) to rotate, so that the rotating disk (9d) drives the annular tube (7a) to rotate, so that the air outlet of the annular tube (7a) continuously changes position; Step 3: When the pH value in the liquid collecting box (4) is detected by the pH value detection sensor, if the pH value is less than 8, the electromagnetic valve connected to the liquid outlet pipe (4a) is opened by the controller, and the lifting mechanism (5a) pushes the cover plate 1 (5b) to move upward to the top, and the cover plate 1 (5b) covers the water outlet of the solution circulation mechanism (11), so that the auxiliary sprayer (2) and the sprayer (12) cannot spray water. The auxiliary sprayer (2) moves upward and drives the airway blocking mechanism (6) to move upward, so that the exhaust port (3a) is closed, the ring tube (7a) is slightly lifted upward, and the contact between the clamping column (9c) and the push column (9d1) is separated; Step 4: When the solution in the liquid collecting box (4) is completely discharged, the lifting mechanism (5a) pulls the cover plate 1 (5b) downward to the lowest part, the liquid replenishing pipe (8) is connected to the water outlet of the solution circulation mechanism (11), and the auxiliary sprayer (2) moves downward while driving the airway blocking mechanism (6) to move downward, so that the exhaust port (3a) is closed, and the solution discharged from the liquid replenishing pipe (8) automatically replenishes the liquid collecting box (4); Step 5: When the liquid in the liquid collecting box (4) is replenished, the lifting mechanism (5a) pushes the cover plate 1 (5b) to move upward to the middle position, the auxiliary sprayer (2) is connected to the water outlet of the solution circulation mechanism (11), and the exhaust port (3a) is opened.

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