Preparation device and preparation method of a temperature-controlled solid acid particle

Abstract

The invention relates to the field of chemical technology, in particular to a preparation device of temperature-controlled solid acid particles and a preparation method thereof. The device comprises a shell, a controller is installed on the outer side of the shell, a first partition is installed in the inner cavity of the shell, a first mixing mechanism is installed on the upper end of the first partition, a second mixing mechanism is installed on the bottom end of the inner cavity of the shell, and a stirring mechanism is installed on the upper end of the shell through a frame. Compared with the prior art, the device has reasonable structural design and strong practicability, is convenient for temperature control of the preparation process of solid acid particles (polyferric sulfate), is convenient for rapid cooling to reduce the solution temperature after sulfuric acid dilution, is convenient for rapid use, improves the production efficiency of polyferric sulfate, is convenient for mechanical linkage to rotate two stirring components in a linkage manner, reduces equipment cost, is convenient for filtering and collecting polyferric sulfate, and effectively improves the use effect.

Description

Technical Field

[0001] The present invention relates to the field of chemical engineering technology, and particularly relates to a preparation device and a preparation method for temperature-controlled solid acid particles. Background Art

[0002] Polyferric sulfate is a solid acid particle. Its morphological property is light yellow amorphous powdery granular solid, which is extremely soluble in water. A 10% aqueous solution is a reddish-brown transparent solution, and it has hygroscopicity. Polyferric sulfate is widely used in the purification treatment of drinking water, industrial water, various industrial wastewaters, urban sewage, and sludge dewatering, etc.

[0003] Currently, when producing polyferric sulfate, it is necessary to mix liquid ferrous with an acid solution, and it is also oxidized and catalyzed by an oxidant to improve the production efficiency of polyferric sulfate. However, currently, when diluting the acid solution, especially concentrated sulfuric acid, a large amount of heat is generated, resulting in a relatively high temperature in the reaction tank. The heat cannot be quickly dissipated, resulting in a relatively high temperature of the generated dilute sulfuric acid, and the natural cooling is slow. It cannot be quickly cooled to an appropriate temperature and then mixed with liquid ferrous to produce polyferric sulfate, resulting in a reduction in the production efficiency of polyferric sulfate. Therefore, we provide a preparation device and a preparation method for temperature-controlled solid acid particles to solve this problem. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a preparation device and a preparation method for temperature-controlled solid acid particles to solve this problem.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] Design a preparation device for temperature-controlled solid acid particles, including a housing. The housing is provided with a controller on the outside, a first partition is installed in the inner cavity of the housing, a first mixing mechanism is installed at the upper end of the first partition, a second mixing mechanism is installed at the bottom end of the inner cavity of the housing, a stirring mechanism is installed at the upper end of the housing through a frame, a feeding mechanism is arranged on one side of the frame through a support plate, a feeding pipe is connected to the upper end of the first mixing mechanism, a drain pipe is connected between the first mixing mechanism and the second mixing mechanism, a first solenoid valve is installed on the outside of the drain pipe, a filtering mechanism is connected to the lower end of the housing, and a cooling mechanism is installed on the outside of the housing through a mounting plate.

[0007] Further, the stirring mechanism includes a motor, a first stirring component, a transmission shaft, a first pulley, a first belt, a second stirring component, a second pulley, and a second belt. The motor is installed above the frame. The lower end of the motor is connected to the first stirring component through an output shaft. The first stirring component is located inside the first mixing mechanism. A protective cover is installed outside the housing. The lower end of the transmission shaft is movably connected to the bottom end inside the protective cover. The transmission shaft is located inside the protective cover. The outer sides of the transmission shaft and the output shaft at the lower end of the motor are both sleeved with first pulleys. The outer sides of the first pulleys are jointly sleeved with a first belt. The second stirring component is arranged inside the second mixing mechanism. The outer sides of the second stirring component and the transmission shaft are both sleeved with second pulleys. The outer sides of the second pulleys are jointly sleeved with a second belt.

[0008] Further, the first mixing mechanism includes a first cover plate, an outer cylinder, a first tank, heat dissipation grooves, a liquid guide groove, a first temperature sensor, and a second temperature sensor. The outer cylinder is installed at the upper end of the first partition. The bottom end inside the outer cylinder is connected to a first tank. The first tank and the outer cylinder are integrally designed. The first cover plate is jointly screwed to the upper ends of the outer cylinder and the first tank. Heat dissipation grooves are equidistantly arranged on the outer side of the first tank. A liquid guide groove is arranged on the inner wall of the first tank. The first temperature sensor is installed at the bottom end inside the outer cylinder. The second temperature sensor is installed at the bottom end inside the first tank. An exhaust pipe is connected to the outer side of the first tank. One end of the exhaust pipe penetrates through the outer cylinder and the housing and extends to the outside and is screwed with a pressure relief valve. The second temperature sensor is made of corrosion-resistant material.

[0009] Further, the second mixing mechanism includes a second tank, a second cover plate, a discharge pipe, and a valve. The second tank is installed at the bottom end inside the housing. The second cover plate is screwed to the upper end of the second tank. The lower end of the second tank is connected to a discharge pipe. The lower end of the discharge pipe penetrates through the housing and extends to the outside and is installed with a valve. A material guide pipe is connected to the outer side of the second tank. The material guide pipe penetrates through the housing and extends to the outside.

[0010] Further, the first stirring component includes a connecting plate, a connecting shaft, and stirring cross bars. The output shaft of the motor penetrates through the first cover plate and extends to the inside of the first tank and is connected to a connecting plate. One side of the connecting plate is connected to a connecting shaft. Stirring cross bars are equidistantly installed on both sides of the connecting shaft.

[0011] Furthermore, the second stirring assembly includes a stirring shaft, a fixing plate, stirring vertical rods and scraping rods. The upper end of the stirring shaft is installed at the lower end of the first partition plate through a bearing seat. One of the second belt pulleys is sleeved on the outer side of the stirring shaft. The lower end of the stirring shaft penetrates through the second tank body and is equidistantly connected to the fixing plate through a fixing sleeve. The lower ends of the fixing plates are equidistantly connected to the stirring vertical rods. One of the fixing plates is connected with a scraping rod on the outer side, and the outer side of the scraping rod is attached to the inner wall of the second tank body.

[0012] Furthermore, the cooling mechanism includes a water tank, a second partition plate, a refrigeration sheet, a third temperature sensor, a first water pump, a first water pipe, a second water pipe, a spraying pipe, a nozzle, a third water pipe, a second solenoid valve, a second water pump, a fourth water pipe and a fifth water pipe. The water tank is installed at the upper end of the mounting plate. The middle part of the inner cavity of the water tank forms a first water storage chamber and a second water storage chamber through the arrangement of the second partition plate. The inner cavity bottoms of the first water storage chamber and the second water storage chamber are both installed with a refrigeration sheet and a third temperature sensor. The upper end of the water tank is installed with a first water pump and a second water pump. The outer side of the first water pump is inserted into the inner cavity of the first water storage chamber through the first water pipe. The upper end of the first water pump penetrates through the outer cylinder through the second water pipe and is connected with a spraying pipe. The spraying pipe is installed on the inner wall of the outer cylinder. The nozzle is equidistantly installed on the side of the spraying pipe corresponding to the first tank body. The outer cylinder is connected with the second water storage chamber through the third water pipe. The second solenoid valve is installed on the outer side of the third water pipe. The second water pump is inserted into the inner cavity of the first water storage chamber through the fourth water pipe. The second water pump is inserted into the inner cavity of the second water storage chamber through the fifth water pipe.

[0013] Furthermore, the feeding mechanism includes a liquid storage tank, a liquid guiding pipe and a flow valve. The liquid storage tank is installed at the upper end of the support plate. The lower end of the liquid storage tank penetrates through the first cover plate through the liquid guiding pipe and extends to the inner cavity of the liquid guiding groove. The liquid guiding pipe is an L-shaped pipe. The end of the liquid guiding pipe far away from the liquid storage tank is 0.3 cm away from the inside of the liquid guiding groove. The flow valve is installed on the outer side of the liquid guiding pipe.

[0014] Furthermore, the filtering mechanism includes side plates, a filtering screen cover, a fixing shaft, a movable shaft and a sliding groove. The two side plates are installed at the lower end of the shell. The filtering screen cover is arranged between the side plates. The two sides of the filtering screen cover are symmetrically and fixedly connected with the fixing shaft, and the fixing shaft is movably connected with the side plates. The two sides of the filtering screen cover are symmetrically movably connected with the movable shaft. The sliding grooves with matching positions are arranged on the corresponding sides of the side plates. The lower part of the outer side of the transmission shaft is sleeved with a first bevel gear. The outer side of the first bevel gear is meshed with a second bevel gear. The inner cavity of the second bevel gear is connected with a support shaft. One end of the support shaft penetrates through the two side plates, and the support shaft is movably connected with the side plates. The support shaft is located at the lower end of the filtering screen cover. The outer side of the support shaft is symmetrically sleeved with cams.

[0015] The present invention also provides a method for preparing temperature-controlled solid acid particles, comprising the following steps:

[0016] S1. Store the concentrated sulfuric acid solution in the liquid storage tank of the feeding mechanism. Introduce water in a proportionate amount into the first tank through the feed pipe. Then open the flow valve to adjust the set liquid flow rate of the liquid guide pipe, thereby controlling the flow rate of the concentrated sulfuric acid in the liquid storage tank. The concentrated sulfuric acid slowly enters the inner wall of the liquid guide groove in the first tank through the liquid guide pipe, slowly flows into the water through its inner wall, and the first stirring component of the stirring mechanism uniformly mixes the concentrated sulfuric acid and water to obtain dilute sulfuric acid. During this process, a large amount of heat is released by the reaction. After cooling the outer wall of the first tank through the cooling mechanism, the temperature inside the first tank is reduced through heat transfer, thereby quickly reducing the temperature of the dilute sulfuric acid. When the temperature of the dilute sulfuric acid stabilizes at 35-40 °C, open the first solenoid valve and discharge the dilute sulfuric acid into the second mixing mechanism through the drain pipe;

[0017] S2. First, introduce ferrous sulfate in a proportionate weight through the guide pipe in advance. After the dilute sulfuric acid enters the second tank, then introduce an appropriate amount of oxidant (hydrogen peroxide) through the guide pipe, and stir and mix it through the second stirring component of the stirring mechanism to facilitate the reaction to generate polymeric ferric sulfate with solid acid particles as the reaction product. And water solution is also generated through the chemical reaction and is discharged by opening the valve;

[0018] S3. The water solution and the polymeric ferric sulfate are discharged through the discharge pipe, and the water solution is filtered through the filter sieve cover, and the polymeric ferric sulfate is retained by the filter sieve cover for manual collection.

[0019] The preparation device and the preparation method of the temperature-controlled solid acid particles proposed by the present invention have the beneficial effects that:

[0020] 1. After sucking out the water inside the first water storage chamber through the first water pump, the water is then sprayed out from the nozzles through the spray pipe to spray the outside of the first tank body. A plurality of heat dissipation grooves are provided on the outside of the first tank body to improve its heat dissipation effect. The water after spraying flows down along the outer wall of the first tank body and is stored in the inner cavity of the outer cylinder, facilitating continuous cooling of the outer wall of the first tank body. Moreover, the water temperature in the inner cavity of the outer cylinder is monitored by the first temperature sensor. When the water temperature in its inner cavity exceeds the set value and cannot achieve the cooling and temperature reduction effect, and at this time, the water inside the first water storage chamber has been drained out, the first water pump is closed and the second water pump is opened simultaneously. The water inside the second water storage chamber is sucked out by the second water pump and discharged into the first water storage chamber, and then the water in the inner cavity of the outer cylinder is discharged into the second water storage chamber through the third water pipe. Then, the cooling water in the first water storage chamber is continuously conveyed by the first water pump again, facilitating the nozzles to continue spraying cooling water to cool the first tank body. The water after spraying remains in the outer cylinder to continue cooling the first tank body, facilitating the outer wall of the first tank body to absorb cold energy and reducing the heat generated after the concentrated sulfuric acid inside it is diluted. Moreover, the temperature of the dilute sulfuric acid is detected by the second temperature sensor. When its temperature reaches the set value, it is discharged through the drain pipe, facilitating the rapid cooling of the dilute sulfuric acid so that it can be put into use, effectively improving the production efficiency of polyferric sulfate;

[0021] 2. After passing through the motor, the motor drives the connecting plate to rotate through the output shaft, and the connecting plate drives the connecting shaft and the stirring cross bars on both sides thereof to rotate, facilitating the mixing and stirring of concentrated sulfuric acid and water to produce dilute sulfuric acid. At the same time, the output shaft of the motor drives the first belt and the transmission shaft installed with another first belt pulley inside it to rotate through the first belt pulley. The transmission shaft drives the second belt and the second belt pulley installed inside its inner cavity to rotate through the second belt pulley. Another second belt pulley drives the stirring shaft inside it to rotate, and the stirring shaft mixes and stirs ferrous sulfate, oxidant and dilute sulfuric acid through several groups of fixing plates and the stirring vertical rods at their lower ends, facilitating the rapid production of polyferric sulfate and aqueous solution. Through the synchronous linkage rotation of the second stirring component and the first stirring component, the stirring use effect of this equipment is facilitated. At the same time, the transmission shaft drives the second bevel gear and the support shaft inside its inner cavity to rotate through the first bevel gear. Furthermore, the support shaft drives the cam on its outside to intermittently lift one side of the lower end of the filter screen cover, facilitating the filter screen cover to be intermittently inclined, facilitating the prevention of the polyferric sulfate collected inside the filter screen cover from blocking its mesh holes, resulting in difficulty in discharging the aqueous solution and affecting its filtering effect. Moreover, through mechanical linkage, the number of motors used in the equipment can be effectively reduced, the practicability is effectively improved, the cost is reduced, and the use effect is effectively improved.

[0022] Compared with the prior art, the invention has a reasonable structural design and strong practicability, is convenient for temperature control of the preparation process of solid acid particles (polyferric sulfate), is convenient for rapid cooling to reduce the solution temperature after sulfuric acid dilution, is convenient for rapid use, improves the production efficiency of polyferric sulfate, is convenient for mechanical linkage to rotate two stirring components in a linked manner, reduces equipment costs, is convenient for filtering and collecting the polyferric sulfate, and effectively improves the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the overall three-dimensional side view structure proposed by the present invention;

[0025] Figure 3 It is a schematic diagram of the internal three-dimensional structure proposed by the present invention;

[0026] Figure 4 It is a schematic diagram of a partial three-dimensional structure proposed by the present invention;

[0027] Figure 5 The present invention proposes Figure 4 The enlarged structural diagram of the device in part A;

[0028] Figure 6 A three-dimensional half-section structural schematic diagram of the first mixing mechanism and cooling mechanism proposed in the present invention;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of the first stirring assembly proposed by the present invention;

[0030] Figure 8 A half-section view of the second mixing mechanism and a three-dimensional structural schematic view of the stirring mechanism proposed by the present invention;

[0031] Figure 9 This is a schematic diagram of the three-dimensional structure of the second stirring assembly proposed by the present invention;

[0032] Figure 10 This is a schematic diagram of the three-dimensional structure of the feeding mechanism proposed by the present invention;

[0033] Figure 11 This is a schematic diagram of the split three-dimensional structure of the filtering mechanism proposed by the present invention;

[0034] Figure 12 It is a schematic diagram of a partial three-dimensional structure proposed by the present invention.

[0035] In the figure: housing 1, controller 2, first mixing mechanism 3, first cover plate 31, outer cylinder 32, first tank body 33, heat dissipation groove 34, liquid guiding groove 35, first temperature sensor 36, second temperature sensor 37, frame 4, stirring mechanism 5, motor 51, first stirring assembly 52, connecting plate 521, connecting shaft 522, stirring cross bar 523, transmission shaft 53, first belt pulley 54, first belt 55, second stirring assembly 56, stirring shaft 561, fixing plate 562, stirring vertical bar 563, scraping bar 564, second belt pulley 57, second belt 58, first bevel gear 59, second bevel gear 510, support shaft 511, cam 512, feeding mechanism 6, liquid storage tank 61, liquid guiding pipe 62, flow valve 63, second mixing mechanism 7, second tank body 71, second cover plate 72, discharge pipe 73, valve 74, cooling mechanism 8, water tank 81, second partition plate 82, refrigeration sheet 83, third temperature sensor 84, first water pump 85, first water pipe 86, second water pipe 87, spraying pipe 88, nozzle 89, third water pipe 810, second solenoid valve 811, second water pump 812, fourth water pipe 813, fifth water pipe 814, filtering mechanism 9, side plate 91, filtering screen cover 92, fixed shaft 93, movable shaft 94, sliding groove 95, support plate 10, mounting plate 11, protective cover 12, exhaust pipe 13, material guiding pipe 14, first partition plate 15, drain pipe 16, first solenoid valve 17, feeding pipe 18. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0037] Refer to Figures 1-12, a preparation device for temperature-controlled solid acid particles, designs a preparation device for temperature-controlled solid acid particles, including a housing 1. A controller 2 is installed on the outer side of the housing 1. A first partition 15 is installed in the inner cavity of the housing 1. A first mixing mechanism 3 is installed at the upper end of the first partition 15. A second mixing mechanism 7 is installed at the bottom end of the inner cavity of the housing 1. A stirring mechanism 5 is installed at the upper end of the housing 1 through a frame 4. A feeding mechanism 6 is arranged on one side of the frame 4 through a support plate 10. The feeding mechanism 6 includes a liquid storage tank 61, a liquid guide pipe 62 and a flow valve 63. The liquid storage tank 61 is installed at the upper end of the support plate 10. The lower end of the liquid storage tank 61 passes through the first cover plate 31 through the liquid guide pipe 62 and extends into the inner cavity of the liquid guide groove 35. The liquid guide pipe 62 is an L-shaped pipe. The end of the liquid guide pipe 62 far from the liquid storage tank 61 is 0.3 cm away from the inside of the liquid guide groove 35. A flow valve 63 is installed on the outer side of the liquid guide pipe 62. The stirring mechanism 5 includes a motor 51, a first stirring assembly 52, a transmission shaft 53, a first belt pulley 54, a first belt 55, a second stirring assembly 56, a second belt pulley 57 and a second belt 58. The motor 51 is installed above the frame 4. The lower end of the motor 51 is connected to the first stirring assembly 52 through an output shaft. The first stirring assembly 52 is located in the inner cavity of the first mixing mechanism 3. A protective cover 12 is installed on the outer side of the housing 1. The lower end of the transmission shaft 53 is movably connected to the bottom end of the inner cavity of the protective cover 12. The transmission shaft 53 is located in the inner cavity of the protective cover 12. First belt pulleys 54 are sleeved on the outer sides of the transmission shaft 53 and the output shaft at the lower end of the motor 51. A first belt 55 is jointly sleeved on the outer sides of the first belt pulleys 54. The second stirring assembly 56 is arranged in the inner cavity of the second mixing mechanism 7. Second belt pulleys 57 are sleeved on the outer sides of the second stirring assembly 56 and the transmission shaft 53. A second belt 58 is jointly sleeved on the outer sides of the second belt pulleys 57. The first stirring assembly 52 includes a connecting plate 521, a connecting shaft 522 and stirring cross bars 523. The output shaft of the motor 51 passes through the first cover plate 31 and extends into the inner cavity of the first tank body 33 to be connected to the connecting plate 521. One side of the connecting plate 521 is connected to the connecting shaft 522. Stirring cross bars 523 are equidistantly installed on both sides of the connecting shaft 522. The second stirring assembly 56 includes a stirring shaft 561, a fixing plate 562, stirring vertical bars 563 and scraping bars 564. The upper end of the stirring shaft 561 is installed at the lower end of the first partition 15 through a bearing seat. One of the second belt pulleys 57 is sleeved on the outer side of the stirring shaft 561. The lower end of the stirring shaft 561 passes through the second tank body 71 and is equidistantly connected to the fixing plate 562 through a fixing sleeve. Stirring vertical bars 563 are equidistantly connected to the lower ends of the fixing plate 562. A scraping bar 564 is connected to the outer side of one of the fixing plates 562. The outer side of the scraping bar 564 is in contact with the inner wall of the second tank body 71. The first mixing mechanism 3 includes a first cover plate 31, an outer cylinder 32, a first tank body 33, a heat dissipation groove 34, a liquid guide groove 35, a first temperature sensor 36 and a second temperature sensor 37. The outer cylinder 32 is installed at the upper end of the first partition 15. The bottom end of the inner cavity of the outer cylinder 32 is connected to the first tank body 33.The first tank body 33 and the outer cylinder 32 are integrally designed. The outer cylinder 32 and the upper end of the first tank body 33 are jointly screwed with a first cover plate 31. Heat dissipation grooves 34 are equidistantly arranged on the outer side of the first tank body 33. A liquid guide groove 35 is arranged on the inner wall of the first tank body 33. A first temperature sensor 36 is installed at the bottom end of the inner cavity of the outer cylinder 32. A second temperature sensor 37 is installed at the bottom end of the inner cavity of the first tank body 33. An exhaust pipe 13 is connected to the outer side of the first tank body 33. One end of the exhaust pipe 13 penetrates through the outer cylinder 32 and the housing 1 and extends to the outside and is screwed with a pressure relief valve. The second temperature sensor 37 is made of corrosion-resistant material. The second mixing mechanism 7 includes a second tank body 71, a second cover plate 72, a discharge pipe 73 and a valve 74. The second tank body 71 is installed at the bottom end of the inner cavity of the housing 1. The upper end of the second tank body 71 is screwed with the second cover plate 72. The lower end of the second tank body 71 is connected to the discharge pipe 73. The lower end of the discharge pipe 73 penetrates through the housing 1 and extends to the outside and is installed with a valve 74. A material guide pipe 14 is connected to the outer side of the second tank body 71. The material guide pipe 14 penetrates through the housing 1 and extends to the outside. After water is injected into the first tank body 33 through the feed pipe 18, concentrated sulfuric acid is discharged into the liquid guide groove 35 through the feeding mechanism 6. And because the distance between the liquid guide pipe 62 and the liquid guide groove 35 is relatively close, after the concentrated sulfuric acid solution is discharged to the inner wall of the liquid guide groove 35, it flows along the inner wall into the water. And the liquid flow rate of the liquid guide pipe 62 is adjusted and set through the flow valve 63, which is convenient for controlling the flow rate of concentrated sulfuric acid in the liquid storage tank 61, facilitating the slow flow of concentrated sulfuric acid into the water, and avoiding a large amount of heat generated by directly pouring a large amount of concentrated sulfuric acid into the water in a short time, which is difficult to dissipate quickly and affects the cooling speed. And after the motor 51 is turned on, the motor 51 drives the connecting plate 521 to rotate through the output shaft, and the connecting plate 521 drives the connecting shaft 522 and the stirring cross bars 523 on both sides to rotate, which is convenient for mixing and stirring concentrated sulfuric acid and water to produce dilute sulfuric acid. And during this period, the temperature of the dilute sulfuric acid is cooled and controlled through the cooling mechanism 8, which is convenient for the temperature of the dilute sulfuric acid to be quickly cooled and then proceed to the next process, effectively improving the production efficiency of polyferric sulfate. And when the temperature of the dilute sulfuric acid is cooled to 35 - 40 °C, after the first solenoid valve 17 on the outer side of the drain pipe 16 is opened, it is discharged from the drain pipe 16 to the second tank body 71, and an appropriate amount of ferrous sulfate and oxidant (hydrogen peroxide) are introduced through the material guide pipe 14. And the output shaft of the motor 51 drives the first belt 55 and the transmission shaft 53 with another first belt pulley 54 installed on the inner side thereof through the first belt pulley 54. And the transmission shaft 53 drives the second belt 58 and another second belt pulley 57 installed in its inner cavity to rotate through the second belt pulley 57. And another second belt pulley 57 drives the stirring shaft 561 in it to rotate. And the stirring shaft 561 mixes and stirs ferrous sulfate, oxidant and dilute sulfuric acid through several fixed plates 562 and the stirring vertical rods 563 at their lower ends, which is convenient for quickly producing polyferric sulfate and aqueous solution. Through the synchronous linkage rotation of the second stirring assembly 56 and the first stirring assembly 52, it is convenient for the stirring use effect of this equipment.Finally, the polymeric ferric sulfate and the aqueous solution are discharged through the discharge pipe 73, and then collected after being filtered by the filtering mechanism 9.

[0038] A cooling mechanism 8 is installed on the outer side of the housing 1 through a mounting plate 11. The cooling mechanism 8 includes a water tank 81, a second partition plate 82, a Peltier element 83, a third temperature sensor 84, a first water pump 85, a first water pipe 86, a second water pipe 87, a spray pipe 88, spray nozzles 89, a third water pipe 810, a second solenoid valve 811, a second water pump 812, a fourth water pipe 813, and a fifth water pipe 814. The water tank 81 is installed at the upper end of the mounting plate 11. The middle part of the inner cavity of the water tank 81 forms a first water storage chamber and a second water storage chamber through the arrangement of the second partition plate 82. A Peltier element 83 and a third temperature sensor 84 are installed at the bottom ends of the inner cavities of the first water storage chamber and the second water storage chamber. A first water pump 85 and a second water pump 812 are installed at the upper end of the water tank 81. The outer side of the first water pump 85 is inserted into the inner cavity of the first water storage chamber through the first water pipe 86. The upper end of the first water pump 85 passes through the outer cylinder 32 through the second water pipe 87 and is connected to a spray pipe 88. The spray pipe 88 is installed on the inner wall of the outer cylinder 32. Spray nozzles 89 are equidistantly installed on the side of the spray pipe 88 corresponding to the first tank body 33. The outer cylinder 32 is connected to the second water storage chamber through the third water pipe 810. A second solenoid valve 811 is installed on the outer side of the third water pipe 810. The second water pump 812 is inserted into the inner cavity of the first water storage chamber through the fourth water pipe 813. The second water pump 812 is inserted into the inner cavity of the second water storage chamber through the fifth water pipe 814. The first water storage chamber and the second water storage chamber inside the water tank 81 are filled with water through two water injection pipes on the outer side of the water tank 81. The water inside the first water storage chamber and the second water storage chamber is cooled by the Peltier element 83, and the cooling temperature of the cooling water is set by the third temperature sensor 84. When the water cooling reaches the set value, the Peltier element 83 is turned off to stop refrigeration. The water inside the first water storage chamber is sucked out by the first water pump 85 through the first water pipe 86, and is discharged to the spray pipe 88 through the second water pipe 87. Finally, the spray pipe 88 sprays out through the spray nozzles 89 to spray the outer side of the first tank body 33. A plurality of heat dissipation grooves 34 are provided on the outer side of the first tank body 33 to improve its heat dissipation effect. The water after spraying flows down along the outer wall of the first tank body 33 and is stored in the inner cavity of the outer cylinder 32, which is convenient for continuously cooling the outer wall of the first tank body 33. The water temperature in the inner cavity of the outer cylinder 32 is monitored by the first temperature sensor 36. When the water temperature in its inner cavity exceeds the set value and cannot achieve the cooling and temperature reduction effect, and at this time the water inside the first water storage chamber has been drained, the first water pump 85 is turned off while the second water pump 812 is turned on. The second water pump 812 sucks out the water inside the second water storage chamber through the fifth water pipe 814, discharges it into the first water storage chamber through the fourth water pipe 813 until it is drained. After the second water pump 812 is turned off, the switch of the second solenoid valve 811 is turned on. The water in the inner cavity of the outer cylinder 32 is drained into the second water storage chamber through the third water pipe 810. The Peltier element 83 inside its inner cavity is turned on to cool the water with a higher temperature for continuous use. By turning on the first water pump 85 again, the cooling water in the first water storage chamber is continuously transported, which is convenient for the spray nozzles 89 to continue spraying cooling water to cool the first tank body 33.Moreover, the water after spraying remains in the outer cylinder 32 to continue cooling the first tank body 33, facilitating the absorption of cold energy by the outer wall of the first tank body 33, reducing the heat generated after dilution of concentrated sulfuric acid inside it. And through the pressure relief valve on the outside of the designed exhaust pipe 13, the pressure inside the first tank body 33 is automatically discharged, avoiding the water vapor generated due to excessive heat, which may cause excessive pressure inside the first tank body 33, effectively improving safety. And the temperature of the dilute sulfuric acid is detected by the second temperature sensor 37. After its temperature reaches the set value, after opening the first electromagnetic valve 17 on the outside of the drain pipe 16, it is discharged from the drain pipe 16 to the second tank body 71 for the next process.

[0039] The upper end of the first mixing mechanism 3 is connected to a feed pipe 18. A drain pipe 16 is connected between the first mixing mechanism 3 and the second mixing mechanism 7. A first electromagnetic valve 17 is installed on the outside of the drain pipe 16. The lower end of the housing 1 is connected to a filtering mechanism 9. The filtering mechanism 9 includes side plates 91, a filtering screen cover 92, a fixed shaft 93, a movable shaft 94 and a sliding groove 95. The two side plates 91 are installed at the lower end of the housing 1. A filtering screen cover 92 is arranged between the side plates 91. The two sides of the filtering screen cover 92 are symmetrically and fixedly connected to the fixed shaft 93. The fixed shaft 93 is movably connected to the side plate 91. The two sides of the filtering screen cover 92 are symmetrically and movably connected to the movable shaft 94. The corresponding sides of the side plates 91 are each provided with a sliding groove 95 that matches its position. The lower part of the outside of the transmission shaft 53 is sleeved with a first bevel gear 59. The outside of the first bevel gear 59 is engaged with a second bevel gear 510. The inner cavity of the second bevel gear 510 is connected to a support shaft 511. One end of the support shaft 511 penetrates through the two side plates 91. The support shaft 511 is movably connected to the side plate 91. The support shaft 511 is located at the lower end of the filtering screen cover 92. The outside of the support shaft 511 is symmetrically sleeved with cams 512. After the aqueous solution and polyferric sulfate are discharged through the discharge pipe 73, they fall into the filtering screen cover 92. And while the transmission shaft 53 is rotating, the transmission shaft 53 drives the second bevel gear 510 and the support shaft 511 inside its inner cavity to rotate through the first bevel gear 59. Then the support shaft 511 drives the cams 512 on its outside to intermittently lift one side of the lower end of the filtering screen cover 92, facilitating the filtering screen cover 92 to be intermittently inclined, so as to avoid the polyferric sulfate collected inside the filtering screen cover 92 from blocking its mesh holes, resulting in difficulty in discharging the aqueous solution and affecting its filtering effect.

[0040] The present invention also provides a preparation method for temperature-controlled solid acid particles, including the following steps:

[0041] S1. Store the concentrated sulfuric acid solution in the liquid storage tank 61 of the feeding mechanism 6. Introduce water in an amount according to the dilution ratio of dilute sulfuric acid into the first tank body 33 through the feed pipe 18. Then open the flow valve 63 and adjust the set liquid flow rate of the liquid guide pipe 62 to control the flow rate of the concentrated sulfuric acid in the liquid storage tank 61. The concentrated sulfuric acid slowly enters the inner wall of the liquid guide groove 35 in the first tank body 33 through the liquid guide pipe 62, slowly flows into the water through its inner wall, and the first stirring component 52 of the stirring mechanism 5 evenly mixes the sulfuric acid and water to obtain dilute sulfuric acid. During this process, a large amount of heat is released by the reaction. After cooling the outer wall of the first tank body 33 through the cooling mechanism 8, the temperature inside the first tank body 33 is reduced through heat conduction, thereby quickly reducing the temperature of the dilute sulfuric acid. When the temperature of the dilute sulfuric acid stabilizes at 35 - 40 °C, open the first electromagnetic valve 17 and discharge the dilute sulfuric acid into the second mixing mechanism 7 through the drain pipe 16;

[0042] S2. First, introduce ferrous sulfate in accordance with the proportioned weight through the guide pipe 14 in advance. When the dilute sulfuric acid enters the second tank body 71, then introduce an appropriate amount of oxidant (hydrogen peroxide) through the guide pipe 14, and stir and mix it through the second stirring component 56 of the stirring mechanism 5 to facilitate the reaction to generate polymeric ferric sulfate with solid acid particles as the reactant. And an aqueous solution is also generated through the chemical reaction, which is discharged by opening the valve 74;

[0043] S3. The aqueous solution and the polymeric ferric sulfate are discharged through the discharge pipe 73, and the aqueous solution is filtered through the filter sieve 92, and the filter sieve 92 retains the polymeric ferric sulfate for easy manual collection.

[0044] Working principle: The present invention controls the connection of a first temperature sensor 36, a second temperature sensor 37, a motor 51, a Peltier device 83, a third temperature sensor 84, a first water pump 85, a second solenoid valve 811, a second water pump 812, and a first solenoid valve 17 through a controller 2 of the PLC type. During use, after water is injected into the interior of the first tank 33 through the feed pipe 18, concentrated sulfuric acid is discharged into the liquid guide groove 35 through the feeding mechanism 6. Since the distance between the liquid guide pipe 62 and the liquid guide groove 35 is relatively short, after the concentrated sulfuric acid solution is discharged to the inner wall of the liquid guide groove 35, it flows along the inner wall into the water. And the liquid flow rate of the liquid guide pipe 62 is adjusted and set through the flow valve 63, which is convenient for controlling the flow rate of the concentrated sulfuric acid in the storage tank 61, facilitating the slow flow of the concentrated sulfuric acid into the water, and avoiding a large amount of heat generated by directly pouring a large amount of concentrated sulfuric acid into the water in a short time, which is difficult to dissipate quickly and affects the cooling speed. After the motor 51 is turned on, the motor 51 drives the connecting plate 521 to rotate through the output shaft, and the connecting plate 521 drives the connecting shaft 522 and the stirring cross bars 523 on both sides to rotate, facilitating the mixing and stirring of the concentrated sulfuric acid and water to produce dilute sulfuric acid. During this period, the first water pump 85 sucks out the water in the first water storage chamber through the first water pipe 86, and discharges it through the second water pipe 87 to the spray pipe 88. Finally, the spray pipe 88 sprays out through the nozzles 89 to spray the outside of the first tank 33. A plurality of heat dissipation grooves 34 are provided on the outside of the first tank 33 to improve its heat dissipation effect. The water after spraying flows down along the outer wall of the first tank 33 and is stored in the inner cavity of the outer cylinder 32, facilitating the continuous cooling of the outer wall of the first tank 33. And the water temperature in the inner cavity of the outer cylinder 32 is monitored by the first temperature sensor 36. When the water temperature in its inner cavity exceeds the set value and cannot achieve the cooling effect, and at this time the water in the first water storage chamber is drained, the first water pump 85 is closed and the second water pump 812 is opened at the same time. The second water pump 812 sucks out the water in the second water storage chamber through the fifth water pipe 814, discharges it through the fourth water pipe 813 into the first water storage chamber until it is drained. After the second water pump 812 is closed, the switch of the second solenoid valve 811 is opened, and the water in the inner cavity of the outer cylinder 32 is drained into the second water storage chamber through the third water pipe 810. The temperature of the relatively high-temperature water is cooled by turning on the Peltier device 83 in its inner cavity for continuous use. And by turning on the first water pump 85 again, the cooling water in the first water storage chamber is continuously transported, facilitating the nozzles 89 to continue spraying cooling water to cool the first tank 33. The water after spraying remains in the outer cylinder 32 to continue cooling the first tank 33, facilitating the outer wall of the first tank 33 to absorb cold energy and reducing the heat generated after the concentrated sulfuric acid inside is diluted. And through the pressure relief valve on the outside of the designed exhaust pipe 13, the pressure inside the first tank 33 is automatically discharged, avoiding the steam generated by excessive heat, resulting in excessive pressure inside the first tank 33, effectively improving the safety. And the temperature of the dilute sulfuric acid is detected by the second temperature sensor 37. When its temperature reaches the set value,After opening the first solenoid valve 17 outside the drain pipe 16, the liquid is drained from the drain pipe 16 to the second tank 71, which facilitates the quick use of diluted sulfuric acid after cooling, effectively improving the production efficiency of polyferric sulfate. An appropriate amount of ferrous sulfate and an oxidant (hydrogen peroxide) are introduced through the guide pipe 14. The output shaft of the motor 51 drives the first belt 55 and the transmission shaft 53 with another first pulley 54 installed inside it to rotate through the first pulley 54. The transmission shaft 53 drives the second belt 58 and another second pulley 57 installed inside its cavity to rotate through the second pulley 57. Another second pulley 57 drives the stirring shaft 561 inside it to rotate. The stirring shaft 561 mixes and stirs ferrous sulfate, the oxidant, and diluted sulfuric acid through several fixed plates 562 and the stirring vertical rods 563 at their lower ends, facilitating the quick production of polyferric sulfate and aqueous solution. The second stirring assembly 56 rotates synchronously with the first stirring assembly 52, facilitating the stirring effect of this equipment. Finally, after the polyferric sulfate and aqueous solution are discharged through the discharge pipe 73, they fall into the filter screen cover 92. While the transmission shaft 53 is rotating, the transmission shaft 53 drives the second bevel gear 510 and the support shaft 511 inside its cavity to rotate through the first bevel gear 59. Furthermore, the support shaft 511 intermittently jacks up one side of the lower end of the filter screen cover 92 through the cam 512 outside it, facilitating the filter screen cover 92 to be intermittently inclined, which helps to prevent the polyferric sulfate collected inside the filter screen cover 92 from blocking its mesh holes, resulting in difficulty in discharging the aqueous solution and affecting its filtering effect. Finally, the polyferric sulfate is collected manually.

[0045] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A preparation device for temperature-controlled solid acid particles, characterized in that it includes a housing (1), a controller (2) is installed on the outer side of the housing (1), a first partition (15) is installed in the inner cavity of the housing (1), a first mixing mechanism (3) is installed at the upper end of the first partition (15), a second mixing mechanism (7) is installed at the bottom end of the inner cavity of the housing (1), a stirring mechanism (5) is installed at the upper end of the housing (1) through a frame (4), a feeding mechanism (6) is arranged on one side of the frame (4) through a support plate (10), a feeding pipe (18) is connected to the upper end of the first mixing mechanism (3), a liquid discharge pipe (16) is connected between the first mixing mechanism (3) and the second mixing mechanism (7), a first electromagnetic valve (17) is installed on the outer side of the liquid discharge pipe (16), a filtering mechanism (9) is connected to the lower end of the housing (1), and a cooling mechanism (8) is installed on the outer side of the housing (1) through a mounting plate (11); The first mixing mechanism (3) includes a first cover plate (31), an outer cylinder (32), a first tank body (33), a heat dissipation groove (34), a liquid guide groove (35), a first temperature sensor (36) and a second temperature sensor (37). The outer cylinder (32) is installed at the upper end of the first partition (15). The bottom end of the inner cavity of the outer cylinder (32) is connected to a first tank body (33). The first tank body (33) and the outer cylinder (32) are integrally designed. The first cover plate (31) is screwed to the upper ends of the outer cylinder (32) and the first tank body (33). The outer side of the first tank body (33) is equidistantly provided with heat dissipation grooves (34). The inner wall of the first tank body (33) is provided with a liquid guide groove (35). The first temperature sensor (36) is installed at the bottom end of the inner cavity of the outer cylinder (32). The second temperature sensor (37) is installed at the bottom end of the inner cavity of the first tank body (33). The outer side of the first tank body (33) is connected to an exhaust pipe (13). One end of the exhaust pipe (13) penetrates through the outer cylinder (32) and the housing (1) and extends to the outside and is screwed with a pressure relief valve. The second temperature sensor (37) is made of corrosion-resistant material; The cooling mechanism (8) includes a water tank (81), a second partition (82), a Peltier element (83), a third temperature sensor (84), a first water pump (85), a first water pipe (86), a second water pipe (87), a spraying pipe (88), a nozzle (89), a third water pipe (810), a second solenoid valve (811), a second water pump (812), a fourth water pipe (813), and a fifth water pipe (814). The water tank (81) is installed at the upper end of the mounting plate (11). The middle of the inner cavity of the water tank (81) forms a first water storage chamber and a second water storage chamber by arranging the second partition (82). The inner cavity bottom ends of the first water storage chamber and the second water storage chamber are both installed with a Peltier element (83) and a third temperature sensor (84). The upper end of the water tank (81) is installed with a first water pump (85) and a second water pump (812). The outside of the first water pump (85) is inserted into the inner cavity of the first water storage chamber through the first water pipe (86). The upper end of the first water pump (85) passes through the outer cylinder (32) through the second water pipe (87) and is connected to a spraying pipe (88). The spraying pipe (88) is installed on the inner wall of the outer cylinder (32). Nozzles (89) are equidistantly installed on one side of the spraying pipe (88) corresponding to the first tank body (33). The outer cylinder (32) is connected to the second water storage chamber through the third water pipe (810). A second solenoid valve (811) is installed on the outside of the third water pipe (810). The second water pump (812) is inserted into the inner cavity of the first water storage chamber through the fourth water pipe (813). The second water pump (812) is inserted into the inner cavity of the second water storage chamber through the fifth water pipe (814).

2. The preparation device of a temperature-controlled solid acid particle according to claim 1, characterized in that The stirring mechanism (5) includes a motor (51), a first stirring assembly (52), a transmission shaft (53), a first pulley (54), a first belt (55), a second stirring assembly (56), a second pulley (57), and a second belt (58). The motor (51) is installed above the frame (4). The lower end of the motor (51) is connected to the first stirring assembly (52) through an output shaft. The first stirring assembly (52) is located in the inner cavity of the first mixing mechanism (3). A protective cover (12) is installed on the outside of the housing (1). The lower end of the transmission shaft (53) is movably connected to the bottom end of the inner cavity of the protective cover (12). The transmission shaft (53) is located in the inner cavity of the protective cover (12). First pulleys (54) are sleeved on the outside of the output shaft at the lower end of the transmission shaft (53) and the motor (51). The outside of the first pulleys (54) is commonly sleeved with a first belt (55). The second stirring assembly (56) is arranged in the inner cavity of the second mixing mechanism (7). Second pulleys (57) are sleeved on the outside of the second stirring assembly (56) and the outside of the transmission shaft (53). The outside of the second pulleys (57) is commonly sleeved with a second belt (58).

3. The preparation device of a temperature-controlled solid acid particle according to claim 2, characterized in that The second mixing mechanism (7) includes a second tank body (71), a second cover plate (72), a discharge pipe (73) and a valve (74). The second tank body (71) is installed at the bottom end of the inner cavity of the housing (1). The upper end of the second tank body (71) is screwed with the second cover plate (72). The lower end of the second tank body (71) is connected to the discharge pipe (73). The lower end of the discharge pipe (73) penetrates through the housing (1) and extends to the outside to install the valve (74). A material guiding pipe (14) is connected to the outside of the second tank body (71). The material guiding pipe (14) penetrates through the housing (1) and extends to the outside.

4. The preparation device of a temperature-controlled solid acid particle according to claim 3, characterized in that The first stirring assembly (52) includes a connecting plate (521), a connecting shaft (522) and stirring cross bars (523). The output shaft of the motor (51) penetrates through the first cover plate (31) and extends to the inner cavity of the first tank body (33) to be connected with the connecting plate (521). One side of the connecting plate (521) is connected with the connecting shaft (522). Stirring cross bars (523) are equidistantly installed on both sides of the connecting shaft (522).

5. The preparation device of a temperature-controlled solid acid particle according to claim 4, characterized in that The second stirring assembly (56) includes a stirring shaft (561), a fixing plate (562), stirring vertical bars (563) and scraping bars (564). The upper end of the stirring shaft (561) is installed at the lower end of the first partition plate (15) through a bearing seat. One of the second belt pulleys (57) is sleeved on the outside of the stirring shaft (561). The lower end of the stirring shaft (561) penetrates through the second tank body (71) and is equidistantly connected with the fixing plate (562) through a fixing sleeve. Stirring vertical bars (563) are equidistantly connected to the lower ends of the fixing plate (562). A scraping bar (564) is connected to the outside of one of the fixing plates (562). The outside of the scraping bar (564) is in fit with the inner wall of the second tank body (71).

6. The preparation device of a temperature-controlled solid acid particle according to claim 5, characterized in that The feeding mechanism (6) includes a liquid storage tank (61), a liquid guiding pipe (62) and a flow valve (63). The liquid storage tank (61) is installed at the upper end of the support plate (10). The lower end of the liquid storage tank (61) penetrates through the first cover plate (31) through the liquid guiding pipe (62) and extends to the inner cavity of the liquid guiding groove (35). The liquid guiding pipe (62) is an L-shaped pipe. The end of the liquid guiding pipe (62) far from the liquid storage tank (61) is 0.3 cm away from the inside of the liquid guiding groove (35). A flow valve (63) is installed on the outside of the liquid guiding pipe (62).

7. The preparation device of a temperature-controlled solid acid particle according to claim 6, characterized in that The filtering mechanism (9) comprises a side plate (91), a filtering screen cover (92), a fixed shaft (93), a movable shaft (94) and a slide groove (95), wherein the two side plates (91) are mounted at the lower end of the housing (1), a filtering screen cover (92) is arranged between the side plates (91), the two sides of the filtering screen cover (92) are symmetrically fixedly connected to the fixed shaft (93), the fixed shaft (93) and the side plates (91) are movably connected, the two sides of the filtering screen cover (92) are symmetrically movably connected to the movable shaft (94), and the side corresponding to the side plate (91) is provided with a movable shaft (94) movably connected to the fixed shaft (93) and the side plates (91) are ... The transmission shaft (53) is provided with a first bevel gear (59) sleeved on the lower outer portion thereof, a second bevel gear (510) is meshed on the outer side of the first bevel gear (59), a support shaft (511) is connected to the inner cavity of the second bevel gear (510), one end of the support shaft (511) passes through two side plates (91), the support shaft (511) is movably connected to the side plates (91), the support shaft (511) is located at the lower end of the filter screen cover (92), and a cam (512) is symmetrically sleeved on the outer side of the support shaft (511).

8. The method for preparing a temperature-controlled solid acid particle preparation device according to claim 7, characterized in that: The following steps are involved: S1. The concentrated sulfuric acid solution is stored in the liquid storage tank (61) of the feeding mechanism (6), and water in a proportion is introduced into the first tank body (33) through the feeding pipe (18). Then, the flow valve (63) is opened to adjust the liquid flow rate of the liquid guide pipe (62) to control the flow rate of the concentrated sulfuric acid in the liquid storage tank (61). The concentrated sulfuric acid slowly enters the inner wall of the liquid guide groove (35) in the first tank body (33) through the liquid guide pipe (62), and slowly flows into the water through the inner wall of the liquid guide groove (35). The stirring mechanism ( 5) is used for uniformly mixing sulfuric acid and water to obtain dilute sulfuric acid. In this process, the reaction releases a large amount of heat. After the outer wall of the first tank body (33) is cooled by the cooling mechanism (8), the temperature inside the first tank body (33) is reduced by cold transfer, thereby rapidly reducing the temperature of the concentrated sulfuric acid. When the temperature of the dilute sulfuric acid is stabilized at 35-40° C., the dilute sulfuric acid is discharged into the second mixing mechanism (7) through the discharge pipe (16) by opening the first solenoid valve (17); S2, introducing ferrous sulfate in accordance with a proportion by weight through the guide pipe (14) in advance, and after the dilute sulfuric acid enters the second tank body (71), introducing an appropriate amount of oxidant through the guide pipe (14), wherein the oxidant is hydrogen peroxide, and stirring and mixing the oxidant through the second stirring component (56) of the stirring mechanism (5), so as to generate solid acid particle polyferric sulfate after reaction, and also generate an aqueous solution after chemical reaction, which is discharged by opening the valve (74); S3, the aqueous solution and the polyferric sulfate are discharged through the discharge pipe (73), and the aqueous solution is filtered through the filter screen (92), while the filter screen (92) retains the polyferric sulfate for easy manual collection.

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