Waste acid extractor

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a waste acid extractor which comprises a total extraction bin. A main control motor; a main drive fluted disc; a plurality of extraction sub-bins; a gear stirring device; a multi-gear adjusting device; a lifting ring seat; a slide shaft; lifting the stirring shaft rod; a net sleeve; total temperature control and management; and a sub-temperature control device. A main control motor drives a main driving fluted disc to be meshed with a plurality of gear stirring devices to drive a lifting stirring shaft rod, and the lifting stirring shaft rod moves up and down in a lifting ring seat through a sliding shaft, so that the effect of efficiently mixing wastewater, an extraction agent and a diluent is achieved, an organic phase is promoted to be better dispersed, agglomeration is prevented, and the extraction efficiency is improved. The recycling viscosity of a regenerated organic phase during recovery of the acid waste sulfuric acid is reduced, a main control motor is used for driving a plurality of extraction branch bins to extract waste acid, so that the effects of low cost and energy conservation are achieved while high-efficiency wastewater treatment is realized, and the temperature control of the plurality of extraction branch bins in the extraction main bin is realized through total temperature control and management.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a waste acid extractor. Background Art

[0002] Waste acid mainly comes from acidic wastewater generated in industrial production processes such as chemical industry, chemical fiber, metal surface treatment and electroplating. If these waste acids are discharged directly without treatment, they will cause serious harm to the environment, including corrosion of pipelines, change of water pH value, impact on aquatic growth and fishery production, damage to crops, and destruction of soil properties. Therefore, waste acid and wastewater must be treated. At present, the extraction method is often used for waste acid treatment.

[0003] However, the existing waste acid extractors have many shortcomings. 1. The mixing effect of some extractors is not good, resulting in insufficient contact between the waste acid and the extractant, which leads to the problem of too high viscosity of the recycled organic phase when recovering acidic waste sulfuric acid, thereby affecting the process efficiency and product quality. 2. Most of the existing waste acid extractors adopt an independent working mode. Multiple independent waste acid extractors need to be equipped with multiple stirring motors, which not only increases the purchase cost but also increases the electricity cost. 3. When extracting waste acid, it is necessary to appropriately increase the operating temperature and use the temperature increase to reduce the viscosity of the liquid. Independent waste acid extractors can only perform separate temperature control, which leads to the problem of heat energy waste during the operation of multiple waste acid extractors. In view of this, we propose a waste acid extractor. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a waste acid extractor to solve the problems raised in the above background technology. To achieve the above objectives, the present invention is implemented through the following technical solutions: a waste acid extractor, comprising an extraction main chamber, a main control motor is fixedly installed on the top of the extraction main chamber, and a main drive gear disc is clamped on the output shaft of the main control motor; a plurality of extraction sub-chambers are distributed in a circular array with the center of the main drive gear disc as the circle point, and the plurality of extraction sub-chambers are slidably connected to the inside of the limit frame, and the tops of the plurality of extraction sub-chambers are all provided with a step stirring device, and the plurality of extraction sub-chambers are all provided with a step adjustment device, and the tops of the plurality of extraction sub-chambers are fixedly connected with a lifting ring seat, and the interior of the lifting ring seat is slidably connected with a sliding shaft through an inclined ring groove, and a lifting stirring shaft rod is fixedly connected to the sliding shaft, and a plurality of stirring blades are fixedly connected to the lifting stirring shaft rod; a mesh sleeve, the top of the mesh sleeve is fixedly connected to the bottom end of the main drive gear disc, and the mesh sleeve is fixedly connected to a plurality of fan plates; a total temperature control tube, the bottom end of which is installed at the bottom of the extraction main chamber; a sub-temperature control device, which is arranged inside the extraction sub-chamber.

[0005] Preferably, the limit frame is fixedly connected to the interior of the extraction main chamber, a plurality of material pipes are fixedly connected to the extraction sub-chambers, and the plurality of material pipes respectively penetrate and are slidably connected to the extraction main chamber, and the mesh sleeve is sleeved on the main temperature control tube.

[0006] Preferably, the step-by-step stirring device includes a height limit plate, a double-headed key rod rotatably connected to the top of the extraction compartment, and a guide base fixedly installed inside the extraction compartment, the bottom of the height limit plate is elastically connected to the top of the extraction compartment by spring 1, the top of the double-headed key rod is slidably connected to a multi-stage gear sleeve, and the top of the multi-stage gear sleeve is elastically connected to a pressure-compensating plate by spring 2.

[0007] Preferably, a telescopic tube is fixedly connected between the bottom of the height limit plate and the top of the extraction compartment, a telescopic tube is fixedly connected between the bottom of the pressure compensation plate and the top of the multi-stage gear sleeve, the top of the pressure compensation plate is in contact with the surface of the guide base, and the bottom end of the double-headed key rod is slidably connected to the top end of the lifting and stirring shaft.

[0008] Preferably, the multi-stage gear sleeve includes a connecting shaft, which is slidably connected to the top of the double-headed key rod, and the surface of the connecting shaft is fixedly connected with a primary gear, a secondary gear and a tertiary gear from bottom to top, respectively, and the main drive gear plate is meshed with any one of the primary gear, the secondary gear and the tertiary gear.

[0009] Preferably, the step-down adjustment device includes a connecting seat and a step-down shaft rotatably connected to the extraction main chamber, the connecting seat is sleeved on the extraction sub-chamber, a threaded rod is fixedly connected to the connecting seat, an adjustment dial is threadedly connected to the threaded rod, the adjustment dial is rotatably connected to the extraction main chamber, and a primary baffle, a secondary baffle and a tertiary baffle are respectively fixedly connected to the step-down shaft.

[0010] Preferably, the sub-temperature control device includes a one-way rotating gear and a fixed plate fixedly connected to the bottom of the extraction sub-chamber, the one-way rotating gear is rotatably connected to the bottom of the extraction sub-chamber, and the top of the one-way rotating gear is fixedly connected to a connecting disk, a plurality of heating tubes are distributed in a circular array on the connecting disk, and the tops of the plurality of heating tubes are fixedly connected to a reinforcement ring, and a cavity is opened inside the extraction sub-chamber for the connection disk, the plurality of heating tubes and the reinforcement ring to rotate.

[0011] Preferably, the surface of the fixed plate is elastically connected to a T-shaped connecting rod via a spring, the bottom of the T-shaped connecting rod is slidably connected to the bottom of the extraction main chamber, a plurality of limit grooves are provided inside the T-shaped connecting rod, the interior of the plurality of limit grooves are elastically connected to a one-way rotating plate via a torsion spring, and the surface of the T-shaped connecting rod is provided with protrusions corresponding to the number and positions of the limit grooves.

[0012] Preferably, a cam corresponding to the number and position of the T-shaped connecting rods is provided at the bottom end of the mesh sleeve, and the cam is used to drive the T-shaped connecting rods.

[0013] Preferably, a support leg is fixedly connected to the extraction compartment, and a roller is installed at the bottom of the support leg.

[0014] It can be seen from the above technical solutions that a waste acid extractor provided in the embodiments of this specification has at least the following beneficial effects: (1) The present invention drives the main drive gear disc to mesh with multiple circular array-distributed step stirring devices through the output shaft of the main control motor to rotate in each extraction compartment. The step stirring device drives the corresponding lifting stirring shaft to rotate. The lifting stirring shaft moves up and down in the lifting ring seat through the sliding shaft and performs lifting work during rotation. The stirring blades on the lifting stirring shaft can achieve the effect of efficiently mixing the wastewater, the extractant and the diluent, thereby promoting better dispersion of the organic phase and preventing agglomeration, thereby reducing the recycling viscosity of the regenerated organic phase existing in the recovery of acidic waste sulfuric acid. A main control motor is used to drive multiple extraction compartments to extract waste acid, thereby achieving efficient treatment of wastewater while achieving low cost and energy saving effects. The total temperature control tube realizes temperature control of multiple extraction compartments in the extraction total compartment.

[0015] (2) The present invention uses a primary baffle, a secondary baffle and a tertiary baffle to respectively correspond to the adjustment of the three types of wastewater extraction. The operator rotates the shifting shaft according to the wastewater classification and rotates the corresponding baffle to the adjustment dial to calibrate the position of the threaded rod. The threaded rod can achieve the effect of corresponding to the positions of the three baffles by rotating the adjustment dial. When the threaded rod moves in the adjustment dial, it drives the extraction compartment to move in the extraction main compartment through the connecting seat. During the movement of the extraction compartment, the corresponding multi-stage gear sleeve and the pressure compensation plate on it also move synchronously. The threaded rod at different gear positions corresponds to the meshing of the multi-stage gear sleeves at different heights on the extraction compartment at that location with the main drive gear disc, so that the multi-stage gear sleeve is used to drive the lifting and lowering stirring shaft rod to adjust the three-speed speed, thereby achieving the effect of classified mixed extraction of the three types of wastewater.

[0016] (3) The present invention intermittently squeezes the T-type connecting rod through the cam at the bottom end of the mesh sleeve. When the T-type connecting rod moves back and forth, the one-way rotating plate is restricted by the protrusion, the limit groove and the torsion spring thereon to drive the one-way rotating gear to rotate in one direction. The one-way rotating gear drives multiple heating tubes to rotate and heat through the connecting plate, thereby achieving the purpose of uniformly heating a single extraction compartment, improving the independent temperature control effect of the extraction compartment, and then achieving the effect of adjusting the temperature during the extraction of three different wastewaters, thereby achieving the purpose of regulating the viscosity of the wastewater extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the extraction main chamber in the present invention; Figure 3 This is a schematic diagram of the internal structure of the extraction compartment in the present invention; Figure 4 This is a schematic diagram of the internal structure of the lifting ring seat in the present invention; Figure 5 It is a structural schematic diagram of the guide base in the present invention; Figure 6 It is a schematic diagram of the limit frame structure in the present invention; Figure 7 It is a schematic diagram of the structure of the total temperature control pipe in the present invention; Figure 8 It is a schematic diagram of the height limiting plate structure in the present invention; Fig. 9 It is a schematic diagram of the structure of the double-headed key rod in the present invention; Fig.10 It is a schematic diagram of the structure of the multi-stage gear sleeve in the present invention; Fig.11 It is a schematic diagram of the structure of the step adjustment device in the present invention; Fig.12 It is a schematic diagram of the structure of the connecting seat in the present invention; Fig.13 It is a schematic diagram of the structure of the shifting shaft in the present invention; Fig.14 It is a schematic diagram of the structure of the connection plate in the present invention; Fig.15 It is a schematic diagram of the structure of the T-type connecting rod in the present invention; Fig.16 It is a schematic diagram of the top structure of the T-type connecting rod in the present invention; Fig.17 It is a schematic diagram of the structure of the cam in the present invention; Fig.18 It is a structural schematic diagram of the sliding shaft in the present invention.

[0018] In the figure: 1. Extraction main chamber; 2. Main control motor; 3. Main drive gear plate; 4. Extraction sub-chamber; 5. Shifting stirring device; 51. Height limit plate; 52. Double-headed key rod; 53. Multi-stage gear sleeve; 531. Connecting shaft; 532. First-stage gear; 533. Second-stage gear; 534. Third-stage gear; 54. Compensation plate; 55. Guide base; 6. Shifting adjustment device; 61. Connecting seat; 62. Threaded rod; 63. Adjusting turntable; 64. Shifting shaft; 65. baffle; 66, secondary baffle; 67, tertiary baffle; 7, lifting ring seat; 8, sliding shaft; 9, lifting stirring shaft; 10, mesh sleeve; 11, total temperature control tube; 12, sub-temperature control device; 121, one-way rotating gear; 122, connecting plate; 123, heating tube; 124, reinforcement ring; 125, fixing plate; 126, T-type connecting rod; 127, limiting groove; 128, one-way rotating plate; 129, bump; 13, cam; 14, support leg; 15, limiting frame. DETAILED DESCRIPTION

[0019] 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.

[0020] Example 1 See also Figure 1 - Fig.18As shown, a waste acid extractor comprises an extraction main chamber 1, a main control motor 2 is fixedly installed on the top of the extraction main chamber 1, a main drive gear disc 3 is clamped on the output shaft of the main control motor 2; a plurality of extraction sub-chambers 4 are distributed in a circular array with the center of the main drive gear disc 3 as the center point, the plurality of extraction sub-chambers 4 are slidably connected to the inside of a limit frame 15, the limit frame 15 is fixedly connected to the inside of the extraction main chamber 1, and is used to limit the extraction sub-chambers 4, so that the extraction sub-chambers 4 can only move linearly in the extraction main chamber 1, and the tops of the plurality of extraction sub-chambers 4 are all provided with a step stirring device 5, A plurality of extraction compartments 4 are each provided with a step adjustment device 6, and a lifting ring seat 7 is fixedly connected to the top of each of the extraction compartments 4. A sliding shaft 8 is slidably connected to the interior of the lifting ring seat 7 through an inclined ring groove. A lifting stirring shaft 9 is fixedly connected to the sliding shaft 8, and a plurality of stirring blades are fixedly connected to the lifting stirring shaft 9. The inclined ring groove provided in the lifting ring seat 7 is an annular groove in an inclined state. When the sliding shaft 8 is located in the annular groove and rotates one circle, it drives the lifting stirring shaft 9 to move up and down. The lifting stirring shaft 9 can perform frequent lifting movements during continuous rotation.The output shaft of the main control motor 2 drives the main drive gear disc 3 to engage with a plurality of circular array-distributed step stirring devices 5 to rotate in each extraction compartment 4. The step stirring devices 5 drive the corresponding lifting stirring shaft 9 to rotate. The lifting stirring shaft 9 moves up and down in the lifting ring seat 7 through the sliding shaft 8, and performs lifting work during the rotation, so as to achieve the effect of efficiently mixing the waste water, the extractant and the diluent by using the stirring blades on the lifting stirring shaft 9, thereby promoting better dispersion of the organic phase and preventing agglomeration, thereby reducing the recycling viscosity of the regenerated organic phase existing in the recovery of acidic waste sulfuric acid; the mesh sleeve 10, the top of the mesh sleeve 10 is fixedly connected to the bottom end of the main drive gear disc 3, and a plurality of fan plates are fixedly connected to the mesh sleeve 10; the total temperature control tube 11, the bottom end of the total temperature control tube 11 is installed at the bottom of the extraction total compartment 1, and the mesh sleeve 10 is sleeved on the total temperature control tube 11; the sub-temperature control device 12, the sub-temperature control device 12 is arranged inside the extraction compartment 4, and is driven by a main control motor 2 The plurality of extraction chambers 4 are driven to extract the waste acid, thereby achieving the effect of high efficiency in treating waste water while achieving low cost and energy saving. The total temperature control tube 11 is a heating element, and the total temperature control tube 11 realizes temperature control of the plurality of extraction chambers 4 in the extraction chamber 1. When the main driving gear disc 3 rotates, the mesh sleeve 10 is synchronously rotated to realize the effect of the fan plate on the mesh sleeve 10 driving the air circulation in the extraction chamber 1, thereby achieving the purpose of rapid heat transfer of the air in the extraction chamber 1, further improving the temperature control effect of the total temperature control tube 11 on the plurality of extraction chambers 4, optimizing the problem of waste water extraction in each extraction chamber 4, thereby improving the viscosity of the liquid extraction in the extraction chamber 4, thereby improving the process efficiency and product quality. The extraction chamber 4 is fixedly connected with a plurality of material pipes, and the plurality of material pipes are respectively penetrated and slidably connected in the extraction chamber 1, and the extraction chamber 4 is fixedly connected with a support leg 14, and a roller is installed at the bottom of the support leg 14 to promote the movement of the extraction chamber 4 in the extraction chamber 1.

[0021] In this embodiment, the step-by-step stirring device 5 includes a height limiting plate 51, a double-headed key rod 52 rotatably connected to the top of the extraction compartment 4, and a guide base 55 fixedly installed inside the extraction compartment 4. The bottom of the height limiting plate 51 is elastically connected to the top of the extraction compartment 4 through a spring 1, and the top of the double-headed key rod 52 is slidably connected to a multi-stage gear sleeve 53. The top of the multi-stage gear sleeve 53 is elastically connected to a pressure compensation plate 54 through a spring 2. The spring coefficient of the spring 1 is less than the spring coefficient of the spring 2, and the spring 1 can stably adjust the multi-stage gear sleeve 53 on the height limiting plate 51. 3 is supported, and after being squeezed, the spring 2 can transfer force to the spring 1, and the spring 1 is first elastically compressed. If the spring 1 is interfered with by movement during the downward compression, for example, when the multi-stage gear sleeve 53 is pressed against the main driving gear disc 3 due to the interference between the teeth during the downward movement, the spring 2 can be compressed at this time until the teeth on the rotating main driving gear disc 3 are misaligned with the teeth on the multi-stage gear sleeve 53. After the movement interference is cancelled, the rapid rebound force of the spring 2 can act on the spring 1, thereby assisting the multi-stage gear sleeve 53 to descend to the corresponding position and mesh with the main driving gear disc 3. A telescopic tube is fixedly connected between the bottom of the height limit plate 51 and the top of the extraction compartment 4, which is used to linearly limit the height limit plate 51. A telescopic tube is fixedly connected between the bottom of the pressure compensation plate 54 and the top of the multi-stage gear sleeve 53, which is used to linearly limit the pressure compensation plate 54. The top of the pressure compensation plate 54 contacts the surface of the guide base 55. The bottom end of the double-headed key rod 52 is slidably connected to the top of the lifting and stirring shaft rod 9, so that the lifting and stirring shaft rod 9 can be lifted and lowered on the double-headed key rod 52 while being driven to rotate by the double-headed key rod 52. The output shaft of the main control motor 2 drives the main drive gear plate 3 to engage with multiple multi-stage gear sleeves 53 distributed in a circular array to rotate. During the rotation, the multi-stage gear sleeve 53 drives the lifting and stirring shaft rod 9 to rotate through the keyway and the key rod on the double-headed key rod 52. During the rotation of the lifting and stirring shaft rod 9, the sliding shaft 8 fixedly connected thereto slides in the lifting ring seat 7, and the lifting and stirring shaft rod 9 can perform frequent lifting movements during continuous rotation.

[0022] Furthermore, the multi-stage gear sleeve 53 includes a connecting shaft 531, which is slidably connected to the top of the double-headed key rod 52, and the surface of the connecting shaft 531 is fixedly connected with a first-stage gear 532, a second-stage gear 533 and a third-stage gear 534 from bottom to top, respectively. The main driving gear plate 3 is meshed with any one of the first-stage gear 532, the second-stage gear 533 and the third-stage gear 534. The sizes of the first-stage gear 532, the second-stage gear 533 and the third-stage gear 534 on the connecting shaft 531 increase sequentially, and the distance between the extraction sub-chamber 4 and the center of the extraction main chamber 1 is proportional to the height of the pressure compensation plate 54, that is, the farther the extraction sub-chamber 4 is from the center of the extraction main chamber 1, the height of the pressure compensation plate 54 The lower the height is affected by the inclined surface on the guide base 55, the more the extraction compartments 4 of different gears correspond to the meshing of the multi-stage gear sleeves 53 of different heights with the main drive gear disc 3, that is, the first-stage gear 532, the second-stage gear 533 and the third-stage gear 534 on the connecting shaft 531 are meshed with the main drive gear disc 3 in different gears. Since the sizes of the first-stage gear 532, the second-stage gear 533 and the third-stage gear 534 are different, the speeds at which they mesh with the main drive gear disc 3 are also different. The multi-stage gear sleeve 53 is used to drive the lifting and lowering stirring shaft 9 to adjust the speed in three gears, so as to achieve the effect of classified mixed extraction of the three wastewaters, thereby improving the overall applicability and practicality of the technical solution.

[0023] Furthermore, the step adjustment device 6 includes a connecting seat 61 and a step shaft 64 rotatably connected to the extraction main chamber 1, the connecting seat 61 is sleeved on the extraction sub-chamber 4, a threaded rod 62 is fixedly connected to the connecting seat 61, an adjusting dial 63 is threadedly connected to the threaded rod 62, the adjusting dial 63 is rotatably connected to the extraction main chamber 1, and a staggered circular array is distributed on the step shaft 64 with a primary baffle 65, a secondary baffle 66 and a tertiary baffle 67, the primary baffle 65, the secondary baffle 66 and the tertiary baffle 67 respectively corresponding to the adjustment of three types of wastewater extraction, and the operator rotates the step shaft 64 according to the wastewater classification, and rotates the corresponding baffle to the adjusting dial 63, so as to adjust the extraction of the wastewater. To calibrate the position of the threaded rod 62, the threaded rod 62 can achieve the effect of corresponding to the positions of the three baffles by rotating the adjusting dial 63. When the threaded rod 62 moves in the adjusting dial 63, it drives the extraction compartment 4 to move in the extraction main compartment 1 through the connecting seat 61. During the movement of the extraction compartment 4, the corresponding multi-stage gear sleeve 53 and the pressure compensation plate 54 thereon also move synchronously. The threaded rod 62 located at different gears corresponds to the meshing of the multi-stage gear sleeve 53 at different heights on the extraction compartment 4 and the main drive gear plate 3, so that the multi-stage gear sleeve 53 is used to drive the lifting and lowering stirring shaft 9 to adjust the three-speed speed, so as to achieve the effect of classified mixed extraction of the three wastewaters.

[0024] It is worth noting that the sub-temperature control device 12 includes a one-way rotating gear 121 and a fixed plate 125 fixedly connected to the bottom of the extraction main chamber 1, the one-way rotating gear 121 is rotatably connected to the bottom of the extraction sub-chamber 4, and the top of the one-way rotating gear 121 is fixedly connected to a connecting disk 122, and a plurality of heating tubes 123 are distributed in a circular array on the connecting disk 122, and the tops of the plurality of heating tubes 123 are fixedly connected to a reinforcement ring 124, and a cavity is provided inside the extraction sub-chamber 4 for the connection disk 122, the plurality of heating tubes 123 and the reinforcement ring 124 to rotate, and the temperature of the heating tube 123 in the corresponding extraction sub-chamber 4 is regulated according to the extraction conditions of different wastewaters, thereby achieving the purpose of independently controlling the temperature of the extraction sub-chamber 4, so that the plurality of extraction sub-chambers 4 can perform both overall temperature control and sub-temperature control, thereby achieving energy saving while ensuring the applicability of the extraction sub-chamber 4.

[0025] It is worth noting that the surface of the fixing plate 125 is elastically connected with a T-shaped connecting rod 126 through a spring, the one-way rotating gear 121, the fixing plate 125 and the T-shaped connecting rod 126 are all adapted to the position and number of the extraction compartments 4, and a single T-shaped connecting rod 126 drives a corresponding one-way rotating gear 121 to rotate, the bottom of the T-shaped connecting rod 126 is slidably connected to the bottom of the extraction main compartment 1, and a plurality of limit grooves 127 are provided inside the T-shaped connecting rod 126. The inside of the groove 127 is elastically connected with a one-way rotating plate 128 through a torsion spring. The surface of the T-shaped connecting rod 126 is provided with a protrusion 129 corresponding to the number and position of the limiting groove 127. When the T-shaped connecting rod 126 moves back and forth, the one-way rotating plate 128 is restricted by the protrusion 129, the limiting groove 127 and the torsion spring thereon to drive the one-way rotating gear 121 to rotate in one direction (when the one-way rotating plate 128 moves toward the fixed plate 125, it will contact the one-way rotating gear 121. At this time, the one-way rotating plate 128 is restricted by the protrusion 129, the limiting groove 127 and the torsion spring thereon). The limit of the protrusion 129 makes it impossible to rotate and give way, and can only rigidly drive the one-way rotating gear 121 to rotate. When the one-way rotating plate 128 moves in the reverse reset direction, the one-way rotating plate 128 can make way in the clockwise direction when it contacts the one-way rotating gear 121. The limiting groove 127 temporarily stores the one-way rotating plate 128 after giving way. After the one-way rotating plate 128 gives way, it can be rotated and reset through the torsion spring on it in the subsequent movement, thereby satisfying the one-way rotating plate 128 in the subsequent reciprocating movement, and only one-way driving the one-way rotating gear 121 to rotate. Here, the one-way rotating gear 121 and the extraction compartment 4 can be fixed by friction, and the friction force is greater than the torsion spring elastic force on the one-way rotating plate 128). The one-way rotating gear 121 drives multiple heating tubes 123 to rotate and heat through the connecting disk 122, thereby achieving the purpose of uniformly heating a single extraction compartment 4, improving the independent temperature control effect of the extraction compartment 4, and then achieving the effect of adjusting the temperature during the extraction of three different wastewaters.

[0026] In addition, a cam 13 corresponding to the number and position of the T-shaped connecting rods 126 is provided at the bottom end of the mesh sleeve 10. The cam 13 is used to drive the T-shaped connecting rods 126 to perform intermittent reciprocating movement. During the rotation, the mesh sleeve 10 can drive multiple T-shaped connecting rods 126 through multiple cams 13 to drive the heating tubes 123 in multiple single extraction compartments 4 to rotate and heat, thereby achieving the purpose of comprehensive and uniform heating.

[0027] When the waste acid extractor of the present invention is in use, waste water, extractant and diluent are respectively fed into the extraction sub-chamber 4 through the material pipes on the extraction sub-chamber 4 that penetrate the outside of the extraction main chamber 1, and the main control motor 2 and the total temperature control tube 11 are started. The total temperature control tube 11 is a heating element, and the temperature is controlled by a program. The output shaft of the main control motor 2 drives the main driving gear disc 3 to engage with a plurality of multi-stage gear sleeves 53 distributed in a circular array to rotate. During the rotation, the multi-stage gear sleeve 53 drives the lifting and stirring shaft rod 9 to rotate through the key slot and the key rod on the double-headed key rod 52. During the rotation of the lifting and stirring shaft rod 9, the sliding shaft fixedly connected thereto 8 slides in the lifting ring seat 7. The inclined ring groove provided in the lifting ring seat 7 is an annular groove in an inclined state. When the sliding shaft 8 is located in the annular groove and rotates one circle, it drives the lifting stirring shaft rod 9 to move up and down. The lifting stirring shaft rod 9 can perform frequent lifting movements during continuous rotation, and perform lifting work during rotation, so as to utilize the stirring blades on the lifting stirring shaft rod 9 to achieve the effect of efficiently mixing the waste water, the extractant and the diluent, thereby promoting better dispersion of the organic phase and preventing agglomeration, thereby reducing the recycling viscosity of the regenerated organic phase existing in the recovery of acidic waste sulfuric acid. The multiple extraction chambers 4 distributed in a circular array work synchronously, and a main control motor 2 is used to drive the multiple extraction chambers 4 to extract the waste acid, thereby achieving efficient wastewater treatment while achieving low cost and energy saving. The total temperature control tube 11 controls the temperature of the multiple extraction chambers 4 in the extraction chamber 1. While the main drive gear disc 3 rotates, the mesh sleeve 10 rotates synchronously to achieve the effect of the fan plate on the mesh sleeve 10 driving the air circulation in the extraction chamber 1, thereby achieving the purpose of rapid heat transfer of the air in the extraction chamber 1, further improving the temperature control effect of the total temperature control tube 11 on the multiple extraction chambers 4, optimizing the problem of wastewater extraction in each extraction chamber 4, thereby increasing the viscosity of the liquid extraction in the extraction chamber 4, and then improving the process efficiency and product quality.

[0028] Multiple extraction compartments 4 can be classified and extracted according to different wastewater conditions. The stirring speed and temperature required for waste acid extraction in different wastewaters are different. The technical solution can achieve the effect of classified extraction of three types of wastewater. The shifting shaft 64 is rotated, and the first-level baffle 65, the second-level baffle 66 and the third-level baffle 67 staggered on the shifting shaft 64 correspond to the adjustment of the three types of wastewater extraction respectively. The operator rotates the shifting shaft 64 according to the wastewater classification and rotates the corresponding baffle to the adjustment dial 63 to calibrate the position of the threaded rod 62. The threaded rod 62 can correspond to the positions of the three baffles by rotating the adjustment dial 63. When the threaded rod 62 moves in the adjustment dial 63, it drives the extraction compartment 4 to move in the extraction main compartment 1 through the connecting seat 61. During the movement of the extraction compartment 4, the corresponding multi-stage gear sleeve 53 and the pressure compensation plate 54 thereon also move synchronously. The sizes of the first-stage gear 532, the second-stage gear 533 and the third-stage gear 534 increase successively, and the distance between the extraction compartment 4 and the center of the extraction main compartment 1 is proportional to the height of the pressure-compensating disk 54, that is, the farther the extraction compartment 4 is from the center of the extraction main compartment 1, the lower the height of the pressure-compensating disk 54 is affected by the inclined surface on the guide base 55, and the threaded rod 62 at different gear positions corresponds to the meshing of the multi-stage gear sleeve 53 at different heights on the extraction compartment 4 with the main drive gear disc 3, that is, the first-stage gear 532, the second-stage gear 533 and the third-stage gear 534 on the connecting shaft 531 are meshed with the main drive gear disc 3 at different gears. Since the sizes of the first-stage gear 532, the second-stage gear 533 and the third-stage gear 534 are different, the speeds at which they mesh with the main drive gear disc 3 are also different, so that the multi-stage gear sleeve 53 is used to drive the lifting and lowering stirring shaft 9 to adjust the speed of the three gears, so as to achieve the effect of classified mixed extraction of the three wastewaters. Moreover, the user can adjust the temperature of the heating tube 123 in the corresponding extraction compartment 4 according to the extraction of different wastewaters, and then achieve the purpose of independently controlling the temperature of the extraction compartment 4, so that multiple extraction compartments 4 can be controlled in total temperature and in parts, thereby achieving energy saving while ensuring the applicability of the extraction compartment 4. At the same time, during the independent temperature control of a single extraction compartment 4, the mesh sleeve 10 intermittently squeezes the T-shaped connecting rod 126 through the cam 13 at its bottom end, and the T-shaped connecting rod 126 is then moved back and forth through the spring 3 on it. During the reciprocating movement, the one-way rotating plate 128 is restricted by the protrusion 129, the limiting groove 127 and the torsion spring thereon to drive the one-way rotating gear 121 to rotate. The one-way rotating gear 121 drives multiple heating tubes 123 to rotate and heat through the connecting disk 122, thereby achieving the purpose of uniformly heating a single extraction compartment 4, improving the independent temperature control effect of the extraction compartment 4, and then achieving the effect of adjusting the temperature during the extraction of three different wastewaters.

[0029] The above implementation methods are only used to illustrate the embodiments of the present invention, and are not limitations of the embodiments of the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present invention. The patent protection scope of the embodiments of the present invention should be defined by the claims.

Claims

1. A spent acid extractor, characterized in that: include An extraction main chamber (1), a main control motor (2) being fixedly mounted on the top of the extraction main chamber (1), and a main drive gear disc (3) being clamped on the output shaft of the main control motor (2); A plurality of extraction compartments (4) are arranged in a circular array with the center of the main driving gear disc (3) as the center point, the plurality of extraction compartments (4) are slidably connected to the inside of the limit frame (15), the tops of the plurality of extraction compartments (4) are provided with a step stirring device (5), the plurality of extraction compartments (4) are provided with a step adjusting device (6), the tops of the plurality of extraction compartments (4) are fixedly connected with a lifting ring seat (7), the inside of the lifting ring seat (7) is slidably connected with a sliding shaft (8) through an inclined ring groove, the sliding shaft (8) is fixedly connected with a lifting stirring shaft rod (9), and the lifting stirring shaft rod (9) is fixedly connected with a plurality of stirring blades; A mesh sleeve (10), wherein the top end of the mesh sleeve (10) is fixedly connected to the bottom end of the main driving gear disc (3), and a plurality of fan plates are fixedly connected to the mesh sleeve (10); A total temperature control tube (11), wherein the bottom end of the total temperature control tube (11) is installed at the bottom of the extraction main chamber (1); A sub-temperature control device (12), wherein the sub-temperature control device (12) is arranged inside the extraction sub-chamber (4).

2. A spent acid extractor according to claim 1, characterized in that: The limit frame (15) is fixedly connected to the interior of the extraction main chamber (1), a plurality of material pipes are fixedly connected to the extraction sub-chamber (4), and the plurality of material pipes respectively penetrate and are slidably connected to the extraction main chamber (1), and the mesh sleeve (10) is sleeved on the main temperature control tube (11).

3. A spent acid extractor according to claim 1, characterized in that: The step-by-step stirring device (5) comprises a height limiting plate (51), a double-headed key rod (52) rotatably connected to the top of the extraction chamber (4), and a guide base (55) fixedly installed inside the extraction chamber (4); the bottom of the height limiting plate (51) is elastically connected to the top of the extraction chamber (4) via a first spring; the top of the double-headed key rod (52) is slidably connected to a multi-stage gear sleeve (53); and the top of the multi-stage gear sleeve (53) is elastically connected to a pressure compensation plate (54) via a second spring.

4. A spent acid extractor according to claim 3, characterized in that: A telescopic tube is fixedly connected between the bottom of the height limiting plate (51) and the top of the extraction compartment (4), a telescopic tube is fixedly connected between the bottom of the pressure compensation plate (54) and the top of the multi-stage gear sleeve (53), the top of the pressure compensation plate (54) is in contact with the surface of the guide base (55), and the bottom end of the double-headed key rod (52) is slidably connected to the top end of the lifting and stirring shaft rod (9).

5. A spent acid extractor according to claim 3, characterized in that: The multi-stage gear sleeve (53) comprises a connecting shaft (531), the connecting shaft (531) is slidably connected to the top end of the double-headed key rod (52), the surface of the connecting shaft (531) is respectively fixedly connected with a primary gear (532), a secondary gear (533) and a tertiary gear (534) from bottom to top, and the main driving gear disc (3) is meshed with any one of the primary gear (532), the secondary gear (533) and the tertiary gear (534).

6. A spent acid extractor according to claim 1, characterized in that: The step adjustment device (6) comprises a connecting seat (61) and a step shaft (64) rotatably connected to the extraction main chamber (1); the connecting seat (61) is sleeved on the extraction sub-chamber (4); a threaded rod (62) is fixedly connected to the connecting seat (61); an adjustment dial (63) is threadedly connected to the threaded rod (62); the adjustment dial (63) is rotatably connected to the extraction main chamber (1); and a primary baffle (65), a secondary baffle (66) and a tertiary baffle (67) are respectively fixedly connected to the step shaft (64).

7. A spent acid extractor according to claim 1, characterized in that: The sub-temperature control device (12) comprises a one-way rotating gear (121) and a fixed plate (125) fixedly connected to the bottom of the main extraction chamber (1); the one-way rotating gear (121) is rotatably connected to the bottom of the extraction sub-chamber (4); and a connecting plate (122) is fixedly connected to the top of the one-way rotating gear (121); a plurality of heating tubes (123) are distributed in a circular array on the connecting plate (122); and a reinforcement ring (124) is fixedly connected to the top of each of the plurality of heating tubes (123); and a cavity is provided inside the extraction sub-chamber (4) for the connection plate (122), the plurality of heating tubes (123) and the reinforcement ring (124) to rotate.

8. A spent acid extractor according to claim 7, characterized in that: The surface of the fixed plate (125) is elastically connected to a T-shaped connecting rod (126) via a spring, the bottom of the T-shaped connecting rod (126) is slidably connected to the bottom of the extraction main chamber (1), a plurality of limiting grooves (127) are provided inside the T-shaped connecting rod (126), the interiors of the plurality of limiting grooves (127) are elastically connected to a one-way rotating plate (128) via a torsion spring, and the surface of the T-shaped connecting rod (126) is provided with protrusions (129) corresponding in number and position to the limiting grooves (127).

9. A spent acid extractor according to claim 7, characterized in that: The bottom end of the mesh sleeve (10) is provided with cams (13) corresponding to the number and position of the T-shaped connecting rods (126), and the cams (13) are used to drive the T-shaped connecting rods (126).

10. A spent acid extractor according to claim 1, characterized in that: A support leg (14) is fixedly connected to the extraction sub-chamber (4), and a roller is installed at the bottom of the support leg (14).

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