Distillation device for industrial waste acid treatment

By adopting a sliding connection mounting frame and limiting bead design in the industrial waste acid treatment distillation unit, the disassembly and installation process of the filter membrane is simplified, solving the cumbersome replacement problem in the existing technology, improving processing efficiency and reducing costs.

CN223973893UActive Publication Date: 2026-03-06MAANSHAN HUAQING ENVIRONMENTAL ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing industrial waste acid treatment distillation equipment requires specialized tools and disassembly of multiple fasteners when replacing filter membranes. This process is cumbersome, time-consuming, and labor-intensive, affecting treatment efficiency and increasing operating costs.

Method used

The installation frame and limit bead design with sliding connection simplify the disassembly and installation of the filter membrane by rotating the knob to drive the toothed plate and locking block, and the spring and limit structure enable quick replacement.

Benefits of technology

It improves the efficiency of filter membrane replacement, reduces operation time and enterprise operating costs, and enhances the overall efficiency of waste acid treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of waste acid treatment, in particular to an industrial waste acid treatment distillation device which comprises a distillation box, the device further comprises a mounting frame and a stirring assembly; a supporting frame is arranged on one side of the distillation box, a heating device used for adding waste acid is arranged on the inner side of the distillation box, a condensing box is arranged on one side of the distillation box, a collecting box is arranged on one side of the condensing box, a feeding pipe is arranged at the upper end of the collecting box, a stirring assembly is arranged on one side of the distillation box, and a cooling assembly is arranged on one side of the condensing box. According to the device, a rotary knob is rotated, the rotary knob drives a toothed plate to slide, the toothed plate drives a clamping block to move, the clamping block is separated from the inner side of a limiting plate, the clamping block pressurizes and compresses a second spring, then a pulling plate is pulled, the pulling plate drives a mounting frame to move and be separated from the inner side of a distillation box, then a fixing plate is pulled, and a limiting bead is extruded to slide into the inner side of the fixing plate; and then the filter membrane is pulled and pulled out for replacement, so that the replacement efficiency is improved, and the waste acid treatment efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of waste acid treatment technology, and in particular to an industrial waste acid treatment distillation device. Background Technology

[0002] Waste acid is unavoidable in industrial production. Direct discharge of this waste acid will cause environmental and air pollution. Because it contains highly corrosive inorganic acids such as sulfuric acid and nitric acid, the treatment of this type of wastewater is relatively difficult, and improper treatment can cause great harm to the environment.

[0003] Existing industrial waste acid treatment distillation equipment involves introducing waste acid into a distillation chamber, filtering out impurities through a filter membrane, and then distilling the waste acid at the bottom of the chamber using a heating device. A suction pump is then used to extract the vaporized acid and send it to a cooling chamber, where it is cooled and liquefied by internal cold water. The liquefied nitric acid is then fed into a collection tank for storage via a feed pipe.

[0004] However, industrial waste acid is highly corrosive, especially high-concentration waste acid, which can severely damage filter membranes. During the treatment process, it may cause filter membrane pore blockage or performance degradation, requiring regular replacement of the filter membrane. However, most filter membranes in existing distillation equipment are fixedly connected. When replacing the filter membrane, operators need to use special tools to disassemble multiple fastening parts, which is a cumbersome, time-consuming, and labor-intensive process. This not only increases the company's operating costs but also seriously affects the overall efficiency of waste acid treatment. Utility Model Content

[0005] For existing industrial waste acid treatment distillation equipment, when replacing the filter membrane, operators need to use special tools to disassemble multiple fasteners. The process is cumbersome, time-consuming, and labor-intensive, which not only increases the company's operating costs but also seriously affects the efficiency of waste acid treatment.

[0006] The technical solution of this utility model is as follows: an industrial waste acid treatment distillation device, including a distillation tank; it also includes an installation frame and a stirring assembly; a support frame is provided on one side of the distillation tank, a heating device for adding waste acid is provided inside the distillation tank, a condenser is provided on one side of the distillation tank, a collection tank is provided on one side of the condenser, a feed pipe is provided at the top of the distillation tank, a stirring assembly is provided on one side of the distillation tank, a cooling assembly is provided on one side of the condenser, an installation frame is slidably connected to the inside of the distillation tank, a filter membrane for filtering waste acid is provided inside the installation frame, a fixing plate is provided on one side of the installation frame, a first spring is provided inside the fixing plate, a limit bead is provided on one side of the first spring, the limit bead is slidably connected to the inside of the fixing plate, a pull plate is provided on one side of the installation frame, a limit plate is provided on one side of the distillation tank, a gear is rotatably connected inside the pull plate, a knob is provided on one side of the gear, a toothed plate is provided on one side of the gear, a locking block is provided on one side of the toothed plate, and a second spring is provided on one side of the locking block.

[0007] Preferably, the mounting frame has a slot, and the limiting bead is engaged with the inner side of the mounting frame through the slot.

[0008] Preferably, two sets of toothed plates are provided, which are symmetrically arranged on both sides of the gear, and the toothed plates mesh with the gear.

[0009] Preferably, the pull plate has a second groove, and the toothed plate is slidably connected to the inner side of the pull plate through the second groove.

[0010] Preferably, the stirring assembly includes a drive motor, with the drive motor located on one side of the distillation tank, a rotating shaft at the output end of the drive motor, and stirring blades for stirring waste acid located on the outside of the rotating shaft.

[0011] Preferably, multiple sets of stirring blades are provided, and the array of multiple sets of stirring blades is arranged on the outside of the rotating shaft.

[0012] Preferably, the cooling assembly includes a suction pump, which is installed at the top of the condenser. A suction pipe is installed on one side of the suction pump, and the other side of the suction pipe is fixedly connected to the distillation tank. A circulating cooling pipe is installed on one side of the suction pipe, which is located inside the condenser. A first liquid delivery pipe is installed on one side of the circulating cooling pipe, and the first liquid delivery pipe is fixedly connected to the collection tank.

[0013] Preferably, a water pump is installed on one side of the condenser, a second liquid delivery pipe is installed on the other side of the water pump, a cooling device is installed on the other side of the second liquid delivery pipe, the cooling device is located at the upper end of the condenser, and a liquid outlet pipe is installed on the other side of the cooling device, which is fixedly connected to the condenser.

[0014] The beneficial effects of this utility model are as follows: Compared with traditional industrial waste acid treatment distillation devices, where operators need to use special tools to disassemble multiple fastening components when replacing the filter membrane, a process that is cumbersome, time-consuming, and labor-intensive, not only increasing the company's operating costs but also seriously affecting the waste acid treatment efficiency, this device uses a rotating knob. The knob drives the toothed plate to slide, which in turn drives the locking block to move, causing the locking block to disengage from the inner side of the limiting plate. The locking block then compresses the second spring, which in turn pulls the pull plate. The pull plate drives the mounting frame to move away from the inner side of the distillation tank, and then the fixing plate is pulled. The limiting bead is squeezed and slides into the inner side of the fixing plate, thereby removing the fixing plate. Finally, the filter membrane is pulled out and replaced, thus improving the replacement efficiency and the waste acid treatment efficiency. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0016] Figure 2 The diagram shown is a cross-sectional view of the present invention.

[0017] Figure 3The diagram shown is a disassembled structural diagram of the mounting frame, filter membrane, fixing plate, first spring, limiting bead and pull plate of this utility model;

[0018] Figure 4 The diagram shown is a cross-sectional view of the distillation tank, pull plate, limiting plate, gear, knob, toothed plate, locking block, and second spring assembly of this utility model.

[0019] Figure 5 The diagram shown is a cross-sectional view of the combination of the condenser, collection box, suction pump, suction pipe, circulating cooling pipe, first liquid delivery pipe, water pump, second liquid delivery pipe, cooling device and liquid outlet pipe of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Distillation tank; 2. Support frame; 3. Heating device; 4. Condensation tank; 5. Collection tank; 601. Mounting frame; 602. Filter membrane; 603. Fixing plate; 604. First spring; 605. Limiting bead; 606. Pull plate; 607. Limiting plate; 608. Gear; 609. Knob; 610. Toothed plate; 611. Locking block; 612. Second spring; 701. Drive motor; 702. Rotating shaft; 703. Stirring blade; 801. Suction pump; 802. Suction pipe; 803. Circulating cooling pipe; 804. First delivery pipe; 805. Water pump; 806. Second delivery pipe; 807. Cooling device; 808. Discharge pipe; 9. Feed pipe. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-5This utility model provides an embodiment of an industrial waste acid treatment distillation device, including a distillation tank 1; it also includes an installation frame 601 and a stirring assembly; a support frame 2 is provided on one side of the distillation tank 1, a heating device 3 for adding waste acid is provided inside the distillation tank 1, a condenser 4 is provided on one side of the distillation tank 1, a collection tank 5 is provided on one side of the condenser 4, a feed pipe 9 is provided at the upper end of the distillation tank 1, a stirring assembly is provided on one side of the distillation tank 1, a cooling assembly is provided on one side of the condenser 4, the installation frame 601 is slidably connected to the inside of the distillation tank 1, a filter membrane 602 for filtering waste acid is provided inside the installation frame 601, a fixing plate 603 is provided on one side of the installation frame 601, a first spring 604 is provided inside the fixing plate 603, and a first spring 604 is provided on one side of the first spring 604. A limiting bead 605 is slidably connected to the inner side of the fixed plate 603. A pull plate 606 is provided on one side of the mounting frame 601, and a limiting plate 607 is provided on one side of the distillation tank 1. A gear 608 is rotatably connected to the inner side of the pull plate 606. A knob 609 is provided on one side of the gear 608, and a toothed plate 610 is provided on one side of the gear 608. A locking block 611 is provided on one side of the toothed plate 610, and a second spring 612 is provided on one side of the locking block 611. A groove is provided on the mounting frame 601, and the limiting bead 605 is engaged with the inner side of the mounting frame 601 through the groove. The groove on the mounting frame 601 allows the limiting bead 605 to be engaged with the inner side of the mounting frame 601, thereby limiting and fixing the fixed plate 603. The toothed plate 610 is designed with... Two sets of toothed plates 610 are symmetrically arranged on both sides of the gear 608. The toothed plates 610 mesh with the gear 608. The two sets of toothed plates 610 cause the toothed plates 610 to drive the two sets of locking blocks 611 to move. The pull plate 606 has a second groove, and the toothed plates 610 are slidably connected to the inner side of the pull plate 606 through the second groove. The second groove on the pull plate 606 allows the toothed plates 610 to be slidably connected to the inner side of the pull plate 606, thus providing a guiding and limiting effect for the toothed plates 610. By rotating the knob 609, the knob 609 causes the toothed plates 610 to slide, and the toothed plates 610 cause the locking blocks 611 to move, causing the locking blocks 611 to disengage from the inner side of the limiting plate 607. The locking blocks 611 compress the second spring 612, and then pull the pull plate 606, which in turn drives the pull plate 606 to move. The mounting frame 601 is moved, disengaging from the inside of the distillation tank 1. Then, the fixing plate 603 is pulled, causing the limiting bead 605 to slide into the inside of the fixing plate 603, thus removing the fixing plate 603. Next, the filter membrane 602 is pulled out and replaced. After replacement, the fixing plate 603 is reinserted into the mounting frame 601. The limiting bead 605 is again squeezed and slides into the inside of the fixing plate 603, compressing the first spring 604. When the fixing plate 603 is in place, the first spring 604 drives the limiting bead 605 to slide, causing the limiting bead 605 to engage with the groove on the mounting frame 601, thus completing the fixation. The mounting frame 601 is then inserted into the distillation tank 1. When the mounting frame 601 is in place, the knob 609 is released.The second spring 612 moves the locking block 611, causing it to slide into the inner side of the limiting plate 607, thereby fixing the pull plate 606, completing the replacement.

[0023] Please see Figure 2 In this embodiment, the stirring assembly includes a drive motor 701. The drive motor 701 is located on one side of the distillation tank 1. A rotating shaft 702 is located at the output end of the drive motor 701. Stirring blades 703 for stirring waste acid are located on the outer side of the rotating shaft 702. Multiple sets of stirring blades 703 are arranged in an array on the outer side of the rotating shaft 702. By having multiple sets of stirring blades 703, rotating the rotating shaft 702 will drive multiple sets of stirring blades 703 to rotate, thereby improving the stirring effect.

[0024] Please see Figure 5 In this embodiment, the cooling assembly includes a suction pump 801. The suction pump 801 is located at the upper end of the condenser 4. A suction pipe 802 is located on one side of the suction pump 801, and the other side of the suction pipe 802 is fixedly connected to the distillation tank 1. A circulating cooling pipe 803 is located on one side of the suction pipe 802, inside the condenser 4. A first infusion pipe 804 is located on one side of the circulating cooling pipe 803, and is fixedly connected to the collection tank 5. A water pump 805 is located on one side of the condenser 4. A second infusion pipe 806 is provided on one side, and a cooling device 807 is provided on one side of the second infusion pipe 806. The cooling device 807 is located at the upper end of the condenser 4. A liquid outlet pipe 808 is provided on one side of the cooling device 807 and is fixedly connected to the condenser 4. Cooling water in the condenser 4 is drawn out by a water pump 805 and transported to the cooling device 807 through the second infusion pipe 806. The water is cooled by the cooling device 807 and discharged into the condenser 4 through the liquid outlet pipe 808 after cooling is completed, thereby improving the cooling effect.

[0025] During operation, industrial waste acid is discharged into distillation tank 1 through feed pipe 9. Impurities in the wastewater are filtered through filter membrane 602. Heating device 3 is activated to heat the waste acid for distillation. Drive motor 701 is activated, driving rotating shaft 702 to rotate, which in turn drives stirring blade 703 to rotate, thus agitating the waste acid and improving its distillation efficiency. Suction pump 801 is activated, drawing vaporized acid from distillation tank 1 through suction pipe 802 and sending it into the distillation tank. In the circulating cooling pipe 803, the coolant in the condenser 4 cools the vaporized acid in the circulating cooling pipe 803, causing it to cool down and liquefy. The water pump 805 is started, and the water pump 805 draws out the cooling water from the condenser 4 and delivers it to the cooling device 807 through the second liquid delivery pipe 806. The cooling device 807 cools the acid, and after cooling is completed, the acid is discharged into the condenser 4 through the liquid outlet pipe 808, thereby improving the cooling effect. The liquefied nitric acid is delivered into the collection tank 5 for storage through the first liquid delivery pipe 804.

[0026] When replacing the filter membrane 602, rotating the knob 609 causes the toothed plate 610 to slide, which in turn moves the locking block 611, disengaging it from the inner side of the limiting plate 607. The locking block 611 then compresses the second spring 612. Pulling the pull plate 606 then moves the mounting frame 601, disengaging it from the inner side of the distillation tank 1. Pulling the fixing plate 603 causes the limiting bead 605 to slide into the inner side of the fixing plate 603, thus removing the fixing plate 603. The filter membrane 602 is then pulled out for replacement. After replacement, the fixing plate 603 is reinserted into the mounting frame. Inside the frame 601, the limiting bead 605 is squeezed and slides into the inside of the fixing plate 603. The limiting bead 605 compresses the first spring 604. When the fixing plate 603 is installed in place, the first spring 604 drives the limiting bead 605 to slide, so that the limiting bead 605 engages with the groove on the mounting frame 601, thereby completing the fixation. Then, the mounting frame 601 is inserted into the distillation tank 1. When the mounting frame 601 is installed in place, the knob 609 is released, and the second spring 612 drives the locking block 611 to move, so that the locking block 611 slides into the inside of the limiting plate 607, thereby fixing the pull plate 606. The replacement is complete.

[0027] Through the above steps, by rotating knob 609, knob 609 drives toothed plate 610 to slide, toothed plate 610 drives locking block 611 to move, causing locking block 611 to disengage from the inner side of limiting plate 607. Locking block 611 compresses second spring 612, then pulls pull plate 606, pulls pull plate 606, drives mounting frame 601 to move, disengaging from the inner side of distillation tank 1. Then pulls fixing plate 603, limiting bead 605 is squeezed and slides into the inner side of fixing plate 603, thereby removing fixing plate 603. Then pulls filter membrane 602 to remove and replace it. After replacement, fixing plate 603 is inserted back into mounting frame. Inside 601, the limiting bead 605 is squeezed and slides into the inside of the fixing plate 603. The limiting bead 605 squeezes and compresses the first spring 604. When the fixing plate 603 is installed in place, the first spring 604 drives the limiting bead 605 to slide, so that the limiting bead 605 engages with the groove on the mounting frame 601, thereby completing the fixation. Then, the mounting frame 601 is inserted into the distillation tank 1. When the mounting frame 601 is installed in place, the knob 609 is released, and the second spring 612 drives the locking block 611 to move, so that the locking block 611 slides into the inside of the limiting plate 607, thereby fixing the pull plate 606. The replacement is completed.

Claims

1. Industrial waste acid treatment distillation apparatus comprising a distillation tank (1); characterized in that: Also include the installation frame (601) and stirring assembly; distillation tank (1) side is equipped with support frame (2), distillation tank (1) inside is equipped with heating device (3) for adding waste acid, distillation tank (1) side is equipped with condenser (4), condenser (4) side is equipped with collection tank (5), distillation tank (1) upper end is equipped with feed pipe (9), distillation tank (1) side is equipped with stirring assembly, condenser (4) side is equipped with cooling assembly, distillation tank (1) inside slide connection has installation frame (601), installation frame (601) inside is equipped with filter membrane (602) for filtering waste acid, installation frame (601) side is equipped with fixed plate (603), fixed plate (603) inside is equipped with first spring (604), first spring (604) side is equipped with limit bead (605), limit bead (605) slide connection is equipped in the inside of fixed plate (603), installation frame (601) side is equipped with pull plate (606), distillation tank (1) side is equipped with limit plate (607), pull plate (606) inside rotationally connected has gear (608), gear (608) side is equipped with knob (609), gear (608) side is equipped with toothed plate (610), toothed plate (610) side is equipped with clamping block (611), clamping block (611) side is equipped with second spring (612).

2. The industrial spent acid treatment distillation apparatus according to claim 1, characterized by: The installation frame (601) is provided with a slot one, and the limit bead (605) is clamped and connected to the inside of the installation frame (601) through the slot one.

3. The industrial spent acid treatment distillation apparatus as claimed in claim 1, wherein: The toothed plate (610) is provided with two groups, and the two groups of toothed plates (610) are symmetrically arranged on the two sides of the gear (608). The toothed plate (610) is engaged with the gear (608).

4. The industrial spent acid treatment distillation apparatus of claim 1, wherein: The pull plate (606) is provided with a slot two, and the toothed plate (610) is slidably connected to the inside of the pull plate (606) through the slot two.

5. The industrial spent acid treatment distillation apparatus as claimed in claim 1, wherein: The stirring assembly comprises a driving motor (701), and the distillation tank (1) side is equipped with driving motor (701), driving motor (701) output end is equipped with rotating shaft (702), rotating shaft (702) outside is equipped with stirring blade (703) for stirring waste acid.

6. The industrial spent acid treatment distillation apparatus of claim 5, wherein: The stirring blade (703) is provided with a plurality of groups, and the plurality of groups of stirring blades (703) are arrayed on the outside of the rotating shaft (702).

7. The industrial spent acid treatment distillation apparatus of claim 1, wherein: The cooling assembly comprises a suction pump (801), and the condenser (4) upper end is equipped with suction pump (801), suction pump (801) side is equipped with suction pipe (802), suction pipe (802) the other side is fixedly connected with distillation tank (1), suction pipe (802) side is equipped with circulating cooling pipe (803), circulating cooling pipe (803) is located in the inside of condenser (4), circulating cooling pipe (803) side is equipped with first infusion tube (804), first infusion tube (804) and collection tank (5) fixed connection.

8. The industrial spent acid treatment distillation apparatus of claim 7, wherein: The condensing box (4) is provided with a water pump (805) on one side, the water pump (805) is provided with a second infusion tube (806) on one side, the second infusion tube (806) is provided with a cooling device (807) on one side, the cooling device (807) is located at the upper end of the condensing box (4), and the cooling device (807) is provided with a liquid outlet pipe (808) on one side, and the liquid outlet pipe (808) is fixedly connected with the condensing box (4).