A spent acid extractor

Abstract

The present invention relates to the technical field of wastewater treatment, and specifically to a waste acid extractor, which includes an extraction main bin; a main control motor; a main drive gear disc; a plurality of extraction sub-bins; a multi-stage stirring device; a multi-stage adjustment device; a lifting ring seat; a sliding shaft; a lifting stirring shaft rod; a mesh sleeve tube; a total temperature control tube; a sub-temperature control device. In the present invention, the main control motor drives the main drive gear disc to engage with a plurality of multi-stage stirring devices to drive the lifting stirring shaft rod, and the lifting stirring shaft rod moves up and down in the lifting ring seat through the sliding shaft, achieving the effect of efficiently mixing wastewater, extractant and diluent, thereby promoting better dispersion of the organic phase and preventing agglomeration, thus reducing the viscosity of the recycled organic phase during the recovery of acidic waste sulfuric acid. One main control motor is used to drive a plurality of extraction sub-bins to carry out the extraction work of waste acid, thereby achieving the effect of high-efficiency wastewater treatment while achieving low cost and energy saving. The total temperature control tube realizes temperature control of a plurality of extraction sub-bins in the extraction main bin.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and specifically 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 directly discharged without treatment, they will cause serious harm to the environment, including corroding pipelines, changing the pH value of water bodies, affecting the growth of aquatic organisms and fishery production, damaging crops, and destroying the properties of the soil. Therefore, waste acid wastewater must be treated. Currently, the extraction method is often used for waste acid treatment.

[0003] However, there are many deficiencies in the existing waste acid extractors. 1. The mixing effect of some extractors is not good, resulting in insufficient contact between the waste acid and the extractant, which causes the problem of too high viscosity in the recycling of the regenerated organic phase during the recovery of acidic waste sulfuric acid, thereby affecting the process efficiency and product quality. 2. Most of the existing waste acid extractors work independently. Multiple independent waste acid extractors need to be equipped with multiple stirring motors, which not only increases the purchase cost but also increases the power cost. 3. When extracting waste acid, it is necessary to appropriately increase the operating temperature to reduce the viscosity of the liquid by increasing the temperature. An independent waste acid extractor can only perform separate temperature control, resulting in waste of heat energy 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 of the prior art, the present invention provides a waste acid extractor, which solves the problems raised in the above background art. To achieve the above objectives, the present invention is realized through the following technical solutions: A waste acid extractor includes an extraction main bin, a main control motor is fixedly installed on the top of the extraction main bin, and a main drive gear disc is clamped on the output shaft of the main control motor; multiple extraction sub-bins are circularly arrayed with the center of the main drive gear disc as the center point. Multiple extraction sub-bins are slidably connected inside the limit frame. At the top of each of the multiple extraction sub-bins, there is a sub-block stirring device. On each of the multiple extraction sub-bins, there is a sub-block adjustment device. At the top inside each of the multiple extraction sub-bins, there is a lifting ring seat fixedly connected. Inside the lifting ring seat, a sliding shaft is slidably connected through an inclined ring groove opened. On the sliding shaft, there is a lifting stirring shaft rod fixedly connected. On the lifting stirring shaft rod, there are multiple stirring blades fixedly connected; a mesh sleeve tube, the top of the mesh sleeve tube is fixedly connected to the bottom of the main drive gear disc, and multiple fan plates are fixedly connected to the mesh sleeve tube; a total temperature control tube, the bottom of the total temperature control tube is installed at the bottom inside the extraction main bin; a sub-temperature control device is arranged inside the extraction sub-bin.

[0005] Preferably, the limiting frame is fixedly connected inside the total extraction bin. A plurality of material pipes are fixedly connected to the extraction sub-bin, and the plurality of material pipes respectively penetrate and are slidably connected inside the total extraction bin. The mesh sleeve is sleeved on the total temperature control pipe.

[0006] Preferably, the multi-stage stirring device includes a height limiting disc, a double-headed key rod rotatably connected to the top of the extraction sub-bin, and a guiding base fixedly installed inside the extraction sub-bin. The bottom of the height limiting disc is elastically connected to the top of the extraction sub-bin through a first spring. The top of the double-headed key rod is slidably connected with a multi-stage gear sleeve. The top of the multi-stage gear sleeve is elastically connected with a pressure compensation disc through a second spring.

[0007] Preferably, a telescopic pipe is fixedly connected between the bottom of the height limiting disc and the top of the extraction sub-bin. A telescopic pipe is fixedly connected between the bottom of the pressure compensation disc and the top of the multi-stage gear sleeve. The top of the pressure compensation disc contacts the surface of the guiding base. The bottom end of the double-headed key rod is slidably connected with the top end of the lifting and stirring shaft rod.

[0008] Preferably, the multi-stage gear sleeve includes a connecting shaft. The connecting shaft is slidably connected to the top of the double-headed key rod. The surface of the connecting shaft is fixedly connected with a first-stage gear, a second-stage gear, and a third-stage gear from bottom to top respectively. The main driving gear disc meshes with any one of the first-stage gear, the second-stage gear, and the third-stage gear.

[0009] Preferably, the multi-stage adjusting device includes a connecting seat and a multi-stage shaft rotatably connected to the total extraction bin. The connecting seat is sleeved on the extraction sub-bin. A threaded rod is fixedly connected to the connecting seat. An adjusting turntable is threadedly connected to the threaded rod. The adjusting turntable is rotatably connected to the total extraction bin. A first-stage baffle, a second-stage baffle, and a third-stage baffle are respectively fixedly connected to the multi-stage shaft.

[0010] Preferably, the sub-temperature control device includes a one-way rotating gear and a fixing plate fixedly connected to the bottom of the total extraction bin. The one-way rotating gear is rotatably connected to the bottom of the extraction sub-bin, and a connecting disc is fixedly connected to the top of the one-way rotating gear. A plurality of heating pipes are circularly and arrayedly distributed on the connecting disc. The top ends of the plurality of heating pipes are all fixedly connected with reinforcing rings. A cavity for the connecting disc, the plurality of heating pipes, and the reinforcing rings to rotate is formed inside the extraction sub-bin.

[0011] Preferably, a T-shaped connecting rod is elastically connected to the surface of the fixing plate through a third spring. The bottom of the T-shaped connecting rod is slidably connected to the bottom of the total extraction bin. A plurality of limiting grooves are formed inside the T-shaped connecting rod. A one-way rotating plate is elastically connected to each of the plurality of limiting grooves through a torsion spring. Protrusions corresponding to the number and positions of the limiting grooves are arranged on the surface of the T-shaped connecting rod.

[0012] Preferably, cams corresponding to the number and positions of the T-shaped connecting rods are provided at the bottom end of the wire sleeve, and the cams are used to drive the T-shaped connecting rods.

[0013] Preferably, legs are fixedly connected to the extraction bin, and rollers are installed at the bottoms of the legs.

[0014] As can be seen from the above technical solutions, a waste acid extractor provided by an embodiment of this specification has at least the following beneficial effects:

[0015] (1) In the present invention, the output shaft of the main control motor drives the main drive gear disk to engage with a plurality of grading stirring devices distributed in a circular array to rotate in each extraction bin. The grading stirring device drives the corresponding lifting stirring shaft rod to rotate. The lifting stirring shaft rod moves up and down through the sliding shaft in the lifting ring seat and performs lifting work during rotation. Thus, the mixing blades on the lifting stirring shaft rod are used to achieve the effect of efficiently mixing wastewater, extractant, and diluent, thereby promoting better dispersion of the organic phase, preventing agglomeration, and thus reducing the viscosity of the recycled organic phase during the recovery of acidic waste sulfuric acid. One main control motor is used to drive multiple extraction bins to perform waste acid extraction work, thereby achieving the effect of high-efficiency wastewater treatment while achieving low cost and energy saving. The total temperature control pipe realizes temperature control for multiple extraction bins in the extraction total bin.

[0016] (2) In the present invention, through the adjustment of the first-level baffle, second-level baffle, and third-level baffle corresponding to the extraction of three types of wastewater respectively, the operator rotates the grading shaft according to the wastewater classification, and rotates the corresponding baffle to the adjustment turntable to calibrate the position of the threaded rod. The threaded rod can achieve the effect of corresponding to the positions of the three baffles respectively by rotating the adjustment turntable. When the threaded rod moves in the adjustment turntable, it drives the extraction bin to move in the extraction total bin through the connecting seat. During the movement of the extraction bin, the corresponding multi-stage gear sleeve and the pressure compensation disk on it also move synchronously. The threaded rods at different gears correspond to the meshing of the multi-stage gear sleeves at different heights on the corresponding extraction bin and the main drive gear disk. Thus, the multi-stage gear sleeve is used to drive the lifting stirring shaft rod to adjust the three-speed rotation, achieving the effect of classifying and mixing the extraction of three types of wastewater.

[0017] (3) In the present invention, the cams at the bottom end of the wire sleeve intermittently squeeze the T-shaped connecting rods. When the T-shaped connecting rods reciprocate, the one-way rotating plate is restricted by the convex block, the limiting groove, and the torsion spring thereon to drive the one-way rotating gear to rotate unidirectionally. The one-way rotating gear drives a plurality of heating tubes to rotate and heat through the connecting disk, thereby achieving the purpose of uniformly heating a single extraction bin, improving the independent temperature control effect of the extraction bin, and then achieving the effect of adjusting the temperature during the extraction of three different types of wastewater, achieving the purpose of regulating and controlling the viscosity of wastewater extraction. Description of the Drawings

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and form a part of this application:

[0019] Figure 1 Schematic diagram of the overall structure of the present invention;

[0020] Figure 2 Schematic diagram of the internal structure of the total extraction bin in the present invention;

[0021] Figure 3 Schematic diagram of the internal structure of the extraction sub-bin in the present invention;

[0022] Figure 4 Schematic diagram of the internal structure of the lifting ring seat in the present invention;

[0023] Figure 5 Schematic diagram of the structure at the guiding base in the present invention;

[0024] Figure 6 Schematic diagram of the structure of the limit frame in the present invention;

[0025] Figure 7 Schematic diagram of the structure at the total temperature control pipe in the present invention;

[0026] Figure 8 Schematic diagram of the structure of the height limit disc in the present invention;

[0027] Figure 9 Schematic diagram of the structure at the double-headed key rod in the present invention;

[0028] Figure 10 Schematic diagram of the structure of the multi-stage gear sleeve in the present invention;

[0029] Figure 11 Schematic diagram of the structure of the gear shift adjusting device in the present invention;

[0030] Figure 12 Schematic diagram of the structure at the connecting seat in the present invention;

[0031] Figure 13 Schematic diagram of the structure at the gear shift shaft in the present invention;

[0032] Figure 14 Schematic diagram of the structure at the connecting plate in the present invention;

[0033] Figure 15 Schematic diagram of the structure at the T-shaped connecting rod in the present invention;

[0034] Figure 16 Schematic diagram of the top view of the T-shaped connecting rod in the present invention;

[0035] Figure 17 Schematic diagram of the structure at the cam in the present invention;

[0036] Figure 18This is a schematic diagram of the structure at the sliding shaft in the present invention.

[0037] In the figure: 1. Total extraction bin; 2. Main control motor; 3. Main drive gear disk; 4. Extraction sub-bin; 5. Grading stirring device; 51. Height limiting disk; 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. Pressure compensation disk; 55. Guide base; 6. Grading adjustment device; 61. Connecting seat; 62. Threaded rod; 63. Adjusting turntable; 64. Grading shaft; 65. First-stage baffle; 66. Second-stage baffle; 67. Third-stage baffle; 7. Lifting ring seat; 8. Sliding shaft; 9. Lifting stirring shaft rod; 10. Mesh sleeve; 11. Total temperature control pipe; 12. Sub-temperature control device; 121. One-way rotating gear; 122. Connecting disk; 123. Heating pipe; 124. Reinforcing ring; 125. Fixed plate; 126. T-shaped connecting rod; 127. Limiting groove; 128. One-way rotating plate; 129. Protrusion; 13. Cam; 14. Leg; 15. Limiting frame. Detailed implementation manners

[0038] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment 1

[0040] Please refer to Figure 1 - Figure 18As shown in the figure, a waste acid extractor includes an extraction main bin 1. A main control motor 2 is fixedly installed at the top of the extraction main bin 1, and a main drive gear disk 3 is clamped on the output shaft of the main control motor 2; there are multiple extraction sub-bins 4 that are circularly arrayed with the center of the main drive gear disk 3 as the center point. The multiple extraction sub-bins 4 are slidably connected inside a limit frame 15, and the limit frame 15 is fixedly connected inside the extraction main bin 1 for limiting the extraction sub-bins 4, so that the extraction sub-bins 4 can only move linearly inside the extraction main bin 1. A sub-block stirring device 5 is provided at the top of each of the multiple extraction sub-bins 4, a sub-block adjusting device 6 is provided on each of the multiple extraction sub-bins 4, a lifting ring seat 7 is fixedly connected to the top inside each of the multiple extraction sub-bins 4, a sliding shaft 8 is slidably connected inside the lifting ring seat 7 through an inclined ring groove opened therein, a lifting stirring shaft rod 9 is fixedly connected to the sliding shaft 8, a plurality of stirring blades are fixedly connected to the lifting stirring shaft rod 9, the inclined ring groove opened inside the lifting ring seat 7 is an inclined annular groove, when the sliding shaft 8 rotates one week inside the annular groove, it drives the lifting stirring shaft rod 9 to move up and down, and the lifting stirring shaft rod 9 can perform frequent lifting movements during continuous rotation.The output shaft of the main control motor 2 drives the main drive gear disk 3 to engage with a plurality of grading stirring devices 5 distributed in a circular array to rotate in each extraction bin 4. The grading stirring device 5 drives the corresponding lifting stirring shaft rod 9 to rotate. The lifting stirring shaft rod 9 moves up and down in the lifting ring seat 7 through the sliding shaft 8 and performs lifting work during rotation. Thus, the stirring blades on the lifting stirring shaft rod 9 achieve the effect of efficiently mixing wastewater, extractant, and diluent, thereby promoting better dispersion of the organic phase and preventing agglomeration, and thus reducing the viscosity of the recycled organic phase during the recovery of acidic waste sulfuric acid; the mesh sleeve 10, the top of the mesh sleeve 10 is fixedly connected to the bottom of the main drive gear disk 3, and a plurality of fan plates are fixedly connected to the mesh sleeve 10; the total temperature control pipe 11, the bottom of the total temperature control pipe 11 is installed at the bottom inside the extraction total bin 1, and the mesh sleeve 10 is sleeved on the total temperature control pipe 11; the sub-temperature control device 12 is arranged inside the extraction bin 4. Using one main control motor 2 to drive a plurality of extraction bins 4 to perform the extraction work of waste acid, thus achieving the effect of high-efficiency wastewater treatment while achieving low cost and energy saving. The total temperature control pipe 11 is a heating element, and the total temperature control pipe 11 realizes temperature control for a plurality of extraction bins 4 inside the extraction total bin 1. While the main drive gear disk 3 rotates, the synchronous rotation of the mesh sleeve 10 is utilized to achieve the effect of the fan plates on the mesh sleeve 10 driving the air circulation inside the extraction total bin 1, and then achieving the purpose of rapid heat transfer of the air inside the extraction total bin 1, further improving the temperature control effect of the total temperature control pipe 11 for a plurality of extraction bins 4, optimizing the problem of wastewater extraction in each extraction bin 4, thereby increasing the viscosity of liquid extraction in the extraction bin 4, and then improving the process efficiency and product quality. A plurality of material pipes are fixedly connected to the extraction bin 4, and the plurality of material pipes respectively penetrate and are slidably connected inside the extraction total bin 1. A support leg 14 is fixedly connected to the extraction bin 4, and a roller is installed at the bottom of the support leg 14 for promoting the movement of the extraction bin 4 inside the extraction total bin 1.

[0041] In this embodiment, the multi-gear stirring device 5 includes a height limiting disc 51, a double-headed key rod 52 rotatably connected to the top of the extraction bin 4, and a guiding base 55 fixedly installed inside the extraction bin 4. The bottom of the height limiting disc 51 is elastically connected to the top of the extraction bin 4 by a first spring. The top of the double-headed key rod 52 is slidably connected with a multi-stage gear sleeve 53. The top of the multi-stage gear sleeve 53 is elastically connected with a pressure compensation disc 54 by a second spring. The spring constant of the first spring is less than that of the second spring, and the first spring can stably support the multi-stage gear sleeve 53 on the height limiting disc 51. After the second spring is squeezed, it can transmit the force to the first spring, and the first spring will first undergo elastic compression. If the first spring encounters movement interference during downward compression, for example, when the multi-stage gear sleeve 53 abuts against the main driving gear disc 3 due to interference between the teeth during downward movement, at this time, the second spring can be compressed 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 force of the rapid rebound of the second spring can act on the first spring, thereby assisting the multi-stage gear sleeve 53 to descend to the corresponding position to engage with the main driving gear disc 3. A telescopic tube is fixedly connected between the bottom of the height limiting disc 51 and the top of the extraction bin 4 for linearly limiting the height limiting disc 51. A telescopic tube is fixedly connected between the bottom of the pressure compensation disc 54 and the top of the multi-stage gear sleeve 53 for linearly limiting the pressure compensation disc 54. The top of the pressure compensation disc 54 contacts the surface of the guiding base 55. The bottom end of the double-headed key rod 52 is slidably connected with the top end of the lifting stirring shaft rod 9, so as to realize that the lifting stirring shaft rod 9 can rotate while being driven by the double-headed key rod 52 and can perform lifting work on the double-headed key rod 52. 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 rotation, the multi-stage gear sleeve 53 drives the lifting stirring shaft rod 9 to rotate through the keyway on the key rod of the double-headed key rod 52. During the rotation of the lifting stirring shaft rod 9, the sliding shaft 8 fixedly connected thereto slides in the lifting ring seat 7. The lifting stirring shaft rod 9 can perform frequent lifting movements during continuous rotation.

[0042] Furthermore, the multi-stage gear sleeve 53 includes a connecting shaft 531 which is slidably connected to the top end of the double-headed key rod 52. 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. The main drive gear disc 3 meshes 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 in sequence. The distance of the extraction bin 4 from the center of the extraction main bin 1 is proportional to the height of the pressure compensation disc 54. That is, the farther the extraction bin 4 is from the center of the extraction main bin 1, the lower the height of the pressure compensation disc 54 is affected by the inclined surface on the guiding base 55. The extraction bins 4 in different gears correspond to the meshing of the multi-stage gear sleeve 53 with different heights and 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 mesh 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, their meshing speeds with the main drive gear disc 3 are also different. Thus, the multi-stage gear sleeve 53 is used to drive and adjust the lifting stirring shaft rod 9 in three gears, achieving the effect of classifying and mixing the extraction of three kinds of waste water, thereby improving the overall applicability and practicability of this technical solution.

[0043] Even further, the gear shifting adjustment device 6 includes a connecting seat 61 and a gear shifting shaft 64 rotatably connected to the extraction main bin 1. The connecting seat 61 is sleeved on the extraction bin 4. A threaded rod 62 is fixedly connected to the connecting seat 61. An adjusting turntable 63 is threadedly connected to the threaded rod 62. The adjusting turntable 63 is rotatably connected to the extraction main bin 1. First-stage baffles 65, second-stage baffles 66 and third-stage baffles 67 are distributed in a staggered circular array on the gear shifting shaft 64. The first-stage baffles 65, the second-stage baffles 66 and the third-stage baffles 67 respectively correspond to the adjustment of the extraction of three kinds of waste water. The operator rotates the gear shifting shaft 64 according to the waste water classification, and rotates the corresponding baffle to the position of the adjusting turntable 63 to calibrate the position of the threaded rod 62 in this way. The threaded rod 62 can achieve the effect of corresponding to the positions of the three baffles respectively by rotating the adjusting turntable 63. When the threaded rod 62 moves in the adjusting turntable 63, it drives the extraction bin 4 to move in the extraction main bin 1 through the connecting seat 61. During the movement of the extraction bin 4, the corresponding multi-stage gear sleeve 53 and the pressure compensation disc 54 on it also move synchronously. The threaded rods 62 in different gears correspond to the meshing of the multi-stage gear sleeve 53 with different heights and the main drive gear disc 3 on the extraction bin 4 at that place. Thus, the multi-stage gear sleeve 53 is used to drive and adjust the lifting stirring shaft rod 9 in three gears, achieving the effect of classifying and mixing the extraction of three kinds of waste water.

[0044] It should be noted that the sub-temperature control device 12 includes a one-way rotating gear 121 and a fixing plate 125 fixedly connected to the bottom of the total extraction bin 1. The one-way rotating gear 121 is rotatably connected to the bottom of the extraction sub-bin 4, and a connecting disc 122 is fixedly connected to the top of the one-way rotating gear 121. A plurality of heating tubes 123 are circularly and arrayedly distributed on the connecting disc 122. Reinforcing rings 124 are fixedly connected to the tops of the plurality of heating tubes 123. A cavity for the connecting disc 122, the plurality of heating tubes 123 and the reinforcing rings 124 to rotate is provided inside the extraction sub-bin 4. The temperature of the heating tubes 123 in the corresponding extraction sub-bin 4 is regulated according to the extraction conditions of different wastewaters, thereby achieving the purpose of independently controlling the temperature of the extraction sub-bin 4, enabling the plurality of extraction sub-bins 4 to perform both total temperature control and sub-temperature control, and ensuring the applicability of the extraction sub-bin 4 while achieving energy conservation.

[0045] It should be noted that a T-shaped connecting rod 126 is elastically connected to the surface of the fixing plate 125 through a third 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 quantity of the extraction sub-bin 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 total extraction bin 1. A plurality of limiting grooves 127 are provided inside the T-shaped connecting rod 126. One-way rotating plates 128 are elastically connected to the inside of the plurality of limiting grooves 127 through torsion springs. Protrusions 129 corresponding to the quantity and position of the limiting grooves 127 are provided on the surface of the T-shaped connecting rod 126. When the T-shaped connecting rod 126 reciprocates, 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 unidirectionally (when the one-way rotating plate 128 moves towards the fixing 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 and cannot rotate to make 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 direction and resets, the one-way rotating plate 128 can perform clockwise making-way work when contacting the one-way rotating gear 121. The limiting groove 127 temporarily stores the one-way rotating plate 128 after making way. After the one-way rotating plate 128 makes way, it can rotate and reset through the torsion spring thereon during subsequent movement, thereby satisfying that the one-way rotating plate 128 only drives the one-way rotating gear 121 to rotate unidirectionally during subsequent reciprocating movement. Here, the one-way rotating gear 121 and the extraction sub-bin 4 can be frictionally fixed, and this frictional force is greater than the elastic force of the torsion spring on the one-way rotating plate 128). The one-way rotating gear 121 drives the plurality of heating tubes 123 to rotate and heat through the connecting disc 122, thereby achieving the purpose of uniformly heating a single extraction sub-bin 4, improving the independent temperature control effect of the extraction sub-bin 4, and then achieving the effect of regulating the temperature during the extraction of three different wastewaters.

[0046] In addition, cams 13 corresponding to the quantity and positions of the T-shaped connecting rods 126 are provided at the bottom end of the wire casing 10. The cams 13 are used to drive the T-shaped connecting rods 126 to perform intermittent reciprocating movement. During the rotation of the wire casing 10, a plurality of cams 13 can drive a plurality of T-shaped connecting rods 126 to drive the heating tubes 123 in a plurality of individual extraction bins 4 to rotate and heat, so as to achieve the purpose of comprehensive and uniform heating.

[0047] When the waste acid extractor of the present invention is in use, wastewater, extractant and diluent are respectively fed into the extraction bin 4 through the material pipes penetrating outside the extraction total bin 1 on the extraction bin 4. By starting the main control motor 2 and the total temperature control pipe 11, the total temperature control pipe 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 drive gear disc 3 to engage a plurality of multi-stage gear sleeves 53 distributed in a circular array to rotate. During the rotation of the multi-stage gear sleeves 53, the key rods on the double-headed key rod 52 drive the lifting and stirring shaft rod 9 to rotate through key grooves. 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. The inclined ring groove opened in the lifting ring seat 7 is an annular groove in an inclined state. When the sliding shaft 8 rotates one week in the annular groove, it drives the lifting and stirring shaft rod 9 to move up and down. The lifting and stirring shaft rod 9 can perform frequent lifting movements during continuous rotation and perform lifting work during rotation. Thus, the stirring blades on the lifting and stirring shaft rod 9 are used to achieve the effect of efficiently mixing wastewater, extractant and diluent, so as to promote better dispersion of the organic phase, prevent agglomeration, and thus reduce the viscosity of the recycled organic phase during the recovery of acidic waste sulfuric acid. The plurality of extraction bins 4 distributed in a circular array work synchronously. One main control motor 2 is used to drive a plurality of extraction bins 4 to perform waste acid extraction work, so as to achieve the effects of high-efficiency wastewater treatment, low cost and energy saving while. The total temperature control pipe 11 realizes temperature control of a plurality of extraction bins 4 in the extraction total bin 1. While the main drive gear disc 3 rotates, the synchronous rotation of the wire casing 10 is utilized to achieve the effect of driving the air flow in the extraction total bin 1 by the fan plate on the wire casing 10, and then achieve the purpose of rapid heat transfer of the air in the extraction total bin 1, further improving the temperature control effect of the total temperature control pipe 11 on a plurality of extraction bins 4, optimizing the problem of wastewater extraction in each extraction bin 4, thereby increasing the viscosity of the liquid extraction in the extraction bin 4, and then improving the process efficiency and product quality.

[0048] 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.

[0049] The above embodiments are only used to illustrate the embodiments of the present invention, rather than to limit the embodiments of the present invention. Those of ordinary skill in the relevant technical field can also 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 shall 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; Mesh casing (10); Total temperature control tube (11); Sub-temperature control device (12); The step-by-step stirring device (5) comprises a double-headed key rod (52) rotatably connected to the top of the extraction compartment (4); 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) via a second spring; 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); The shifting shaft (64) is rotated to rotate the corresponding baffle plate to the adjusting dial (63). When the threaded rod (62) moves in the adjusting dial (63), the extraction sub-chamber (4) is driven to move in the extraction main chamber (1). During the movement of the extraction sub-chamber (4), the corresponding multi-stage gear sleeve (53) and the pressure compensation plate (54) thereon also move synchronously, so that the multi-stage gear sleeve (53) drives the lifting stirring shaft (9) to adjust the three-speed rotation speed.

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 stepping stirring device (5) comprises a height limiting plate (51) and a guide base (55) fixedly mounted 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 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 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); a connection 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 connection plate (122); 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 plate (122), the plurality of heating tubes (123) and the reinforcement ring (124) to rotate; 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); The bottom end of the total temperature control tube (11) is installed at the bottom of the extraction main chamber (1); The sub-temperature control device (12) is arranged inside the extraction sub-chamber (4).

7. A spent acid extractor according to claim 6, 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).

8. A spent acid extractor according to claim 6, 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).

9. 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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