An acid bath recovery device
By combining a moving plate, cooling jacket, recovery tank and self-priming pump, the problems of acid overflow and concentration changes in the acid bath recovery of spinning were solved, and the safe and stable recovery of acid was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXIANG CHEM FIBER
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-09
AI Technical Summary
The acid bath used in spinning is prone to acid spillage during the recycling process, which affects safety. Furthermore, the evaporation of acid at high temperatures causes changes in concentration, affecting the recycling effect.
The device employs a combination of a moving plate, a cooling jacket, a recovery storage tank, and a self-priming pump. The cooling jacket cools the acid solution, the self-priming pump extracts and transports the acid solution, an overflow pipe is installed to prevent overflow, and the spiral blades cool the water flow to stabilize the acid concentration.
It effectively prevents acid spillage, ensures the safety of the acid bath, and maintains a stable acid concentration in a high-temperature environment, thus ensuring the safety and stability of the recovery device.
Smart Images
Figure CN224331541U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of acid baths in spinning, and in particular relates to an acid bath recovery device. Background Technology
[0002] A spinning acid bath is a chemical bath used in fiber manufacturing, primarily for coagulating and regenerating cellulose fibers. In wet spinning, the spinning solution enters the acid bath after being extruded from the spinneret. The coagulant in the acid bath exchanges with the solvent in the spinning solution, causing the solvent in the spinning solution stream to diffuse into the coagulation bath, while the coagulant in the coagulation bath penetrates into the spinning solution stream, thus coagulating the spinning solution into fibers. For some regenerated cellulose fibers, such as viscose and cuprammonium cellulose, the acid bath also acts as a regenerator. In the acid bath, cellulose molecules rearrange and crystallize, forming fibers with certain strength and properties. Sulfuric acid is the most commonly used acid in spinning acid baths, and its concentration varies depending on the type of fiber and the production process. To ensure sufficient use of sulfuric acid and reduce acid waste, a recovery device is needed to recover the acid when the acid bath needs to be recycled. However, this method still has the following drawbacks in practical use:
[0003] In the recycling process of spinning acid bath, the acid bath is directly transported to the equipment. However, if the amount of acid is too large during the recycling process, it is easy to cause the amount of acid in the production equipment to be too large when it is directly recycled to the production equipment, causing the acid in the spinning acid bath equipment to overflow and affecting the safety of the acid bath.
[0004] Secondly, during the recycling of the spinning acid bath, the high temperature in the workshop causes the acid in the storage tank to evaporate, resulting in changes in the acid concentration due to water evaporation during operation, which affects the acid recycling effect. Utility Model Content
[0005] The purpose of this utility model is to provide an acid bath recovery device. By setting up a moving plate, a cooling jacket, a recovery storage tank and a self-priming pump, it solves the problem of acid overflow in the spinning acid bath equipment during the recovery process, which affects the safety of the acid bath, and the problem that the acid bath will evaporate due to the high temperature in the workshop, affecting the concentration of the acid.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model relates to an acid bath recovery device, comprising a movable plate, a cooling jacket, a recovery tank, and a self-priming pump. The recovery tank is fixed to one side of the center line parallel to the short side of the top of the movable plate. The cooling jacket is fixed to the periphery of the recovery tank. Spiral blades are fixed to the inner wall of the cooling jacket and to the periphery of the recovery tank. A self-priming pump is fixed to the top of the movable plate on the outer side of the cooling jacket. During operation, the movable plate supports the cooling jacket, recovery tank, and self-priming pump. The cooling jacket cools the acid solution passing through the recovery tank, which then contains the acid solution. The self-priming pump then transports the acid solution to the cooling jacket.
[0008] Furthermore, a handle is fixed to the top of the movable plate near the short edge of the cooling sleeve, and casters are fixed to the four corners of the bottom of the movable plate. The handle on the movable plate provides a pushing action, and the casters provide support for the movable plate.
[0009] Furthermore, a fixing plate is fixed to the top of the cooling jacket, and a drain pipe and a water inlet pipe are symmetrically fixed through the fixing plate. The fixing plate on the cooling jacket connects the drain pipe and the water inlet pipe together.
[0010] Furthermore, the drain pipe is fixed to the top of the cooling jacket, the inlet pipe is fixed to the top of the cooling jacket and vertically fixed inside the spiral blades, and the bottom end of the inlet pipe is located below the spiral blades inside the cooling jacket. Cooling water is transported into the cooling jacket through the inlet pipe and discharged through the drain pipe.
[0011] Furthermore, a transfer pipe is fixedly connected to the lower part of the recovery tank near the self-priming pump. The height of the transfer pipe is lower than the height of the spiral blades and extends through the cooling jacket. A recovery pipe is fixedly connected to the upper part of the recovery tank away from the self-priming pump. The height of the recovery pipe is higher than the height of the spiral blades and extends through the cooling jacket. An overflow pipe is fixedly connected to the top of the recovery tank. The transfer pipe inputs the recovered acid bath into the recovery tank, and the recovery pipe transports it to the acid recovery equipment. Excess acid is discharged from the recovery tank through the overflow pipe.
[0012] Furthermore, the input end of the self-priming pump is fixedly connected to a negative pressure pipe, and the output end of the self-priming pump is fixedly connected to the end of the transfer pipe away from the recovery storage tank. After the self-priming pump is started, the acid is drawn in through the negative pressure pipe and then transported to the recovery storage tank through the transfer pipe.
[0013] This utility model has the following beneficial effects:
[0014] This invention solves the problem of acid overflow in the spinning acid bath during acid bath recovery by setting up a movable plate, a recovery storage tank, and a self-priming pump. This effectively prevents acid bath safety. When acid bath recovery is needed, the self-priming pump is started. After the self-priming pump starts, the negative pressure pipe draws the acid bath into the self-priming pump, then transports it to the transfer pipe, and then to the recovery storage tank. As the acid bath level in the recovery storage tank rises, the acid is transported to the recovery pipe and then to the acid bath equipment for recovery and reuse. When the acid content in the recovery storage tank is too high or the pressure is too great, the acid is transported to the overflow pipe and discharged into the acid discharge equipment. This effectively prevents acid overflow during the recovery of spinning acid bath, ensuring acid bath safety.
[0015] This invention solves the problem of acid bath concentration being affected by evaporation due to excessively high workshop temperatures when recovering acid baths by setting up a movable plate, a cooling jacket, and a recovery storage tank. When the spinning acid bath is transported into the cooling jacket, cooling water is transported to the lower part of the cooling jacket through the water inlet pipe. The water flows through the spiral blades in the cooling jacket, and the spiral blades guide the cooling water to rise spirally until it enters the drain pipe and is discharged. This cools the acid bath in the recovery storage tank, ensuring the stability of the acid bath when it is used in the application location. This allows the acid bath recovery device to effectively ensure the stability of the acid bath and guarantee the applicability of the recovered acid bath to high-temperature environments. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A three-dimensional view of the assembly structure of an acid bath recovery device;
[0018] Figure 2 This is a three-dimensional structural diagram of the movable plate;
[0019] Figure 3 This is a three-dimensional view of the cooling jacket section after it has been cut open.
[0020] Figure 4 This is a three-dimensional structural diagram of the fixed plate;
[0021] Figure 5 A three-dimensional structural diagram of the recycling storage tank;
[0022] Figure 6 This is a three-dimensional structural diagram of a self-priming pump.
[0023] Figure label:
[0024] 1. Movable plate; 101. Casters; 102. Handle; 2. Cooling jacket; 201. Spiral blades; 202. Fixing plate; 203. Drain pipe; 204. Inlet pipe; 3. Recycling tank; 301. Transfer pipe; 302. Recycling pipe; 303. Overflow pipe; 4. Self-priming pump; 401. Negative pressure pipe. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1
[0026] Please see Figure 1-5 This utility model is an acid bath recovery device, including a movable plate 1, a cooling jacket 2, a recovery tank 3, and a self-priming pump 4. The recovery tank 3 is fixed on one side of the center line parallel to the short side of the top of the movable plate 1. The movable plate 1 supports the cooling jacket 2, the recovery tank 3, and the self-priming pump 4 on it. The recovery tank 3 recovers acid. The cooling jacket 2 is fixed around the periphery of the recovery tank 3. Cooling water passing through the cooling jacket 2 cools the acid that has passed through the recovery tank 3. A spiral blade 201 is fixed on the inner wall of the cooling jacket 2. The spiral blade 201 is fixed around the periphery of the recovery tank 3. When the spiral blade 201 is working, it spirals the water upward to fully cool the recovery tank 3. The self-priming pump 4 is fixed on the top of the movable plate 1 outside the cooling jacket 2. The self-priming pump 4 pumps the recovered acid into the recovery pipe 302.
[0027] Specifically, a handle 102 is fixed at the top of the movable plate 1 near the short edge of the cooling sleeve 2, and casters 101 are fixed at the four corners of the bottom of the movable plate 1. Pushing the handle 102 will drive the movable plate 1 and the casters 101 at the bottom to move, so that the casters 101 are driven to move.
[0028] Furthermore, a fixing plate 202 is fixed to the top of the cooling jacket 2. A drain pipe 203 and a water inlet pipe 204 are symmetrically fixed inside the fixing plate 202. During operation, the drain pipe 203 and the water inlet pipe 204 are fixed by the fixing plate 202.
[0029] Furthermore, the drain pipe 203 is fixed to the top of the cooling jacket 2, and the inlet pipe 204 is fixed to the top of the cooling jacket 2 and vertically fixed inside the spiral blade 201. The bottom end of the inlet pipe 204 is located below the spiral blade 201 inside the cooling jacket 2. The top end of the drain pipe 203 is connected to the input end of the cooling water equipment to discharge the cooling water in the cooling recovery storage tank 3 inside the cooling jacket 2 into the cooling equipment. The top end of the inlet pipe 204 is connected to the pipeline at the output end of the cooling water equipment to transport the cooling water into the cooling jacket 2.
[0030] The operation process of this embodiment is as follows: During operation, when the acid bath solution of the spinning acid is transported into the cooling jacket 2, cooling water is transported to the lower part of the cooling jacket 2 through the water inlet pipe 204. The water flows through the spiral blades 201 in the cooling jacket 2, and the spiral blades 201 spiral upwards until they enter the drain pipe 203 and are discharged, so that the acid bath solution entering the recovery storage tank 3 is cooled, ensuring the stability of the acid bath solution suitable for use at the application location. Specific Implementation Example 2
[0031] Please see Figure 1-6 Based on the specific embodiment one, a transfer pipe 301 is fixedly connected to the lower part of the periphery of the recovery tank 3 near the self-priming pump 4. The height of the transfer pipe 301 is lower than the height of the spiral blade 201 and extends through the cooling jacket 2. A recovery pipe 302 is fixedly connected to the upper part of the periphery of the recovery tank 3 away from the self-priming pump 4. The height of the recovery pipe 302 is higher than the height of the spiral blade 201 and extends through the cooling jacket 2. An overflow pipe 303 is fixedly connected to the top of the recovery tank 3. When the recovery tank 3 is working, the transfer pipe 301 transports the acid output from the self-priming pump 4 to the recovery tank 3. The end of the recovery pipe 302 away from the recovery tank 3 is connected to the equipment using the acid bath recovery, so that the acid entering the recovery tank 3 is transported to the acid bath recovery equipment. The top of the overflow pipe 303 is connected to the equipment for discharging excess acid bath, so that the excess acid bath recovered in the recovery tank 3 is discharged through the overflow pipe 303.
[0032] Specifically, the input end of the self-priming pump 4 is fixedly connected to a negative pressure pipe 401, the output end of the self-priming pump 4 is fixedly connected to the end of the transfer pipe 301 away from the recovery storage tank 3, and the top end of the negative pressure pipe 401 at the input end of the self-priming pump 4 is connected to the output end of the equipment that discharges the acid bath.
[0033] The operation process of this embodiment is as follows: During operation, when acid bath needs to be recovered, the self-priming pump 4 is started. After the self-priming pump 4 is started, the negative pressure pipe 401 draws the acid from the acid bath into the self-priming pump 4, and then transports it to the transfer pipe 301. Through the transfer pipe 301, it is transported to the recovery storage tank 3. As the level of acid bath in the recovery storage tank 3 rises, the acid is transported to the recovery pipe 302 and then to the acid bath equipment for recovery and reuse. When the acid content in the recovery storage tank 3 is too high and the pressure is too great, the acid is transported to the overflow pipe 303 and discharged into the acid discharge equipment through the overflow pipe 303.
[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An acid bath recovery device, comprising a movable plate (1), a cooling jacket (2), a recovery storage tank (3), and a self-priming pump (4), characterized in that: A recycling tank (3) is fixed to one side of the center line parallel to the short side of the top of the movable plate (1). A cooling jacket (2) is fixed to the periphery of the recycling tank (3). A spiral blade (201) is fixed to the inner wall of the cooling jacket (2). The spiral blade (201) is fixed to the periphery of the recycling tank (3). A self-priming pump (4) is fixed to the top of the movable plate (1) on the outer side of the cooling jacket (2). A fixing plate (202) is fixed to the top of the cooling jacket (2). A drain pipe (203) and a water inlet pipe (204) are symmetrically fixed inside the fixing plate (202). The drain pipe (203) is fixed to the top of the cooling jacket (2), and the water inlet pipe (204) is fixed to the top of the cooling jacket (2). The top of the water inlet pipe (204) is vertically fixed inside the spiral blade (201), and the bottom of the water inlet pipe (204) is located below the spiral blade (201) inside the cooling jacket (2); the lower part of the recovery tank (3) near the self-priming pump (4) is fixedly connected to the transfer pipe (301), the height of the transfer pipe (301) is lower than the height of the spiral blade (201), and it extends through the cooling jacket (2); the upper part of the recovery tank (3) away from the self-priming pump (4) is fixedly connected to the recovery pipe (302), the height of the recovery pipe (302) is higher than the height of the spiral blade (201), and it extends through the cooling jacket (2); the top of the recovery tank (3) is fixedly connected to the overflow pipe (303).
2. The acid bath recovery device according to claim 1, characterized in that: A handle (102) is fixed at the top of the movable plate (1) near the short edge of the cooling sleeve (2), and casters (101) are fixed at the four corners of the bottom of the movable plate (1).
3. The acid bath recovery device according to claim 1, characterized in that: The input end of the self-priming pump (4) is fixedly connected to a negative pressure pipe (401), and the output end of the self-priming pump (4) is fixedly connected to the end of the transfer pipe (301) away from the recovery storage tank (3).