An apparatus for recovering alkali

Abstract

The utility model discloses a kind of alkali recovery devices, it is related to lye recovery technical field, including base, the top of base is fixedly erected and installed with filter box and evaporator, the top of filter box is connected with rectangular liquid inlet hopper, the top of filter box is transversely opened with two first sliding grooves, the side of filter box is connected with water pump, the water outlet end of water pump is communicated with the inside of evaporator, the bottom of evaporator is equipped with the drain pipe with valve, the top of evaporator is equipped with water vapor pipe, water vapor pipe is connected with condenser;Mobile seat mechanism, mobile seat mechanism is located at the top of filter box and is slidably connected with two first sliding grooves.The utility model when working, its filtering mechanism does not need manual to clean cleaning processing frequently, thus does not need to suspend filtering work frequently, so that greatly improve work efficiency, simultaneously, effectively reduce the security risk, and practicality is higher.

Description

Technical Field

[0001] This utility model relates to the field of alkali recovery technology, and in particular to an alkali recovery device. Background Technology

[0002] The production process of viscose fiber generates a large amount of waste alkali solution. If this waste alkali solution is discharged directly without treatment, it will cause serious environmental pollution. Recycling and reusing it can not only reduce waste alkali emissions but also save resources, lower production costs, and achieve cleaner production. Therefore, alkali solution recycling is a crucial step in improving resource utilization, reducing production costs, and minimizing environmental pollution.

[0003] Currently, the evaporation, concentration, and recovery process of alkali solution can be roughly divided into pretreatment, heating and evaporation, condensation and separation, and post-treatment. Specifically, the waste alkali solution is first pre-filtered to remove suspended solids and impurities to improve the subsequent evaporation efficiency. After the filtration pretreatment is completed, the pre-treated waste alkali solution is sent to the evaporator, where the water is evaporated by heating. Then, the water vapor generated by evaporation is cooled by the condenser and becomes liquid water, which can be recycled. The concentrated alkali solution is discharged from the bottom of the evaporator, achieving the purpose of alkali solution concentration and recovery. Finally, the concentrated alkali solution can be further processed according to needs, such as crystallization separation, neutralization and adjustment.

[0004] When pre-treating waste alkali solution for recycling, filtration is required. However, existing pre-treatment filtration mechanisms are prone to clogging due to impurities, reducing filtration efficiency and necessitating frequent manual cleaning. This frequent cleaning also requires pausing filtration, further reducing efficiency. Moreover, due to the strong alkalinity, corrosiveness, and potential toxicity of waste alkali solution, accidental contact with the human body can cause significant harm. Therefore, frequent manual cleaning poses a substantial safety hazard. Consequently, there is an urgent need for an alkali recovery device to address these technical problems. Utility Model Content

[0005] This utility model discloses an alkali recovery device, which is equipped with a lifting cleaning mechanism. During operation, waste alkali liquid can be manually poured into the inlet hopper or transported to the inlet hopper through a pipeline. Simultaneously, the motor is started, driving the lead screw to rotate in both directions. The rotation of the lead screw, in conjunction with the second sliding groove, drives the slider to move back and forth, thereby driving the connecting seat and cleaning plate to move back and forth. As the cleaning plate moves back and forth, it can continuously clean the filter screen, effectively preventing impurities from clogging the filter screen. This eliminates the need for frequent manual cleaning and frequent interruptions to the filtration process, greatly improving work efficiency and effectively reducing safety hazards. In summary, this device solves the problems in the background technology.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model discloses an alkali recovery device, including a base, on which a filter box and an evaporator are fixedly mounted. A rectangular liquid inlet hopper is connected to the top of the filter box, and two first sliding grooves are opened laterally on the top of the filter box. A water pump is connected to one side of the filter box, and the outlet of the water pump is connected to the interior of the evaporator. A drain pipe with a valve is provided at the bottom of the evaporator, and a steam pipe is provided at the top of the evaporator. A condenser is connected to the outside of the steam pipe.

[0008] A movable seat mechanism is located on top of the filter box and is slidably connected to two first sliding grooves;

[0009] A lifting cleaning mechanism includes a lifting cylinder, a lifting base, a lead screw, a motor, a connecting seat, a cleaning plate, a support block, a filter screen plate, and an activated carbon filter plate. The bottom of the lifting cylinder is connected to a movable base mechanism, and the bottom of the lifting base is connected to the telescopic end of the lifting cylinder. The lead screw is rotatably mounted on the top of the lifting base via two bearing seats. A slider is screwed onto the outside of the lead screw. Two second sliding grooves are laterally formed on the top of the lifting base. The bottom of the slider is slidably connected to the two second sliding grooves via a sliding connector. The motor is fixedly mounted on the top of the lifting base, and the motor's... The output end is connected to the lead screw. One side of the connecting seat is fixedly connected to one side of the slider. The top of the cleaning plate is fixedly connected to the top of the connecting seat, and the bottom of the cleaning plate is provided with a brush part. There are two sets of support blocks, and the two sets of support blocks are respectively fixedly installed on both sides of the inside of the liquid inlet hopper. The filter screen plate and the activated carbon filter plate are detachably fixedly connected, and the filter screen plate is located above the activated carbon filter plate. The bottom of the activated carbon filter plate abuts against the top of the two sets of support blocks. The top of the filter screen plate contacts the bottom of the brush part, and the size of the filter screen plate and the activated carbon filter plate matches the internal size of the liquid inlet hopper.

[0010] Furthermore, the bristles are made of polyetheretherketone (PEEK) material, and the connector and cleaning plate are both made of polyvinylidene fluoride (PVDF) material.

[0011] Furthermore, the bottom of the filter plate is provided with multiple connecting rods, and the activated carbon filter plate is provided with multiple connecting grooves. The connecting grooves are matched and sleeved with the connecting rods. The bottom of the connecting rod is screwed with a threaded cap, and the outside of the connecting rod is provided with a limiting block. The bottom of the limiting block is in close contact with the top of the activated carbon filter plate.

[0012] Furthermore, two lifting rods are fixedly connected to the top of the filter screen plate, with the two lifting rods respectively close to both sides of the filter screen plate.

[0013] Furthermore, the top of the connecting seat is designed in an A-shape, and the front and rear sides of the cleaning plate are close to but do not contact the interior front and rear sides of the liquid inlet.

[0014] Furthermore, the movable seat mechanism includes a fixed seat, a drive cylinder, and a slide. The fixed seat is fixedly installed on the top of the filter box. The drive cylinder is fixedly installed through the fixed seat. A connecting plate is fixedly connected to the telescopic end of the drive cylinder. The slide is slidably connected to two first sliding grooves. The top of the connecting plate is fixedly connected to the bottom of the slide. The top of the slide is fixedly connected to the bottom of the lifting cylinder.

[0015] The present invention has the following advantages over the prior art:

[0016] 1. This technical solution features a lifting cleaning mechanism, allowing waste alkaline solution to be manually poured into the inlet hopper or transported to the inlet hopper via pipeline during operation. Simultaneously, the lifting cleaning mechanism continuously and automatically cleans the filter screen, effectively preventing impurities from clogging the filter screen. This eliminates the need for frequent manual cleaning and frequent filtration interruptions, greatly improving work efficiency and reducing safety hazards, making it highly practical.

[0017] 2. This technical solution incorporates a movable seat mechanism and a lifting cleaning mechanism. After filtration is completed, the movable seat mechanism can drive the lifting cleaning mechanism to move until the connecting seat and cleaning plate in the lifting cleaning mechanism are both far from the top of the liquid inlet hopper. At this point, the filter screen and activated carbon filter can be easily and quickly removed for cleaning or replacement, ensuring their normal operation next time and further improving the practicality of the device. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure from another perspective of the present invention;

[0021] Figure 3 This is a sectional view of the filter plate installation structure of this utility model;

[0022] Figure 4 This is an exploded view of the slider installation structure of this utility model;

[0023] Figure 5 An exploded view of the activated carbon filter plate installation structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the exploded structure of the drive cylinder of this utility model.

[0025] In the diagram: 1. Base; 2. Filter box; 3. Evaporator; 4. Liquid inlet hopper; 5. First chute; 6. Water pump; 7. Drain pipe; 8. Steam pipe; 9. Moving seat mechanism; 901. Fixed seat; 902. Drive cylinder; 903. Slide seat; 904. Connecting plate; 10. Lifting cleaning mechanism; 1001. Lifting cylinder; 1002. Lifting seat; 1003. Lead screw; 1004. Motor; 1005. Connecting seat; 1006. Cleaning plate; 1007. Support block; 1008. Filter screen plate; 1009. Activated carbon filter plate; 1010. Slider; 1011. Second chute; 1012. Brush part; 1013. Connecting rod; 1014. Connecting groove; 1015. Threaded cap; 1016. Limiting block; 1017. Lifting rod. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0029] Reference Figures 1-5 An alkali recovery device includes a base 1, a filter box 2 and an evaporator 3 fixedly mounted on the top of the base 1, a rectangular liquid inlet hopper 4 connected to the top of the filter box 2, two first sliding grooves 5 horizontally opened on the top of the filter box 2, a water pump 6 connected to one side of the filter box 2, the outlet of the water pump 6 connected to the inside of the evaporator 3, a drain pipe 7 with a valve at the bottom of the evaporator 3, a steam pipe 8 at the top of the evaporator 3, and a condenser connected to the outside of the steam pipe 8.

[0030] A movable seat mechanism 9 is located on top of the filter box 2 and slidably connected to two first sliding grooves 5. A lifting cleaning mechanism 10 includes a lifting cylinder 1001, a lifting seat 1002, a lead screw 1003, a motor 1004, a connecting seat 1005, a cleaning plate 1006, a support block 1007, a filter screen plate 1008, and an activated carbon filter plate 1009. The bottom of the lifting cylinder 1001 is connected to the movable seat mechanism 9, and the bottom of the lifting seat 1002 is connected to the telescopic end of the lifting cylinder 1001. The lead screw 1003 is rotatably mounted on the top of the lifting seat 1002 via two bearing seats. A slider 1010 is screwed onto the outside of the lead screw 1003. Two second sliding grooves 1011 are laterally opened on the top of the lifting seat 1002. The bottom of the slider 1010 is slidably connected to the two second sliding grooves 1011 via a sliding connector. Motor 1004 is fixedly installed on the top of lifting seat 1002, and the output end of motor 1004 is connected to lead screw 1003. One side of connecting seat 1005 is fixedly connected to one side of slider 1010. The top of cleaning plate 1006 is fixedly connected to the top of connecting seat 1005. The bottom of cleaning plate 1006 is provided with brush part 1012. There are two sets of support blocks 1007. The two sets of support blocks 1007 are fixedly installed on both sides of the inside of liquid inlet 4. Filter screen plate 1008 and activated carbon filter plate 1009 are detachably fixedly connected. Filter screen plate 1008 is located above activated carbon filter plate 1009. The bottom of activated carbon filter plate 1009 abuts against the top of the two sets of support blocks 1007. The top of filter screen plate 1008 contacts the bottom of brush part 1012. The size of filter screen plate 1008 and activated carbon filter plate 1009 matches the internal size of liquid inlet 4.

[0031] The brush bristles 1012 are made of polyetheretherketone (PEEK), while the connecting seat 1005 and the cleaning plate 1006 are both made of polyvinylidene fluoride (PVDF). The bottom of the filter plate 1008 has multiple connecting rods 1013, and the activated carbon filter plate 1009 has multiple connecting grooves 1014. The connecting grooves 1014 are fitted and sleeved with the connecting rods 1013. The bottom of the connecting rods 1013 is screwed with threaded caps 1015, and the outside of the connecting rods 1013 has a limiting block 1016. The bottom of the limiting block 1016 is in contact with the top of the activated carbon filter plate 1009. Two lifting rods 1017 are fixedly connected to the top of the filter plate 1008, and the two lifting rods 1017 are respectively close to both sides of the filter plate 1008. The top of the connecting seat 1005 has an A-shaped design, and the front and rear sides of the cleaning plate 1006 are close to but do not contact the interior front and rear sides of the liquid inlet 4.

[0032] In the specific implementation process, during operation, the waste alkaline solution can be manually poured into the inlet hopper 4 or transported into the inlet hopper 4 through a pipeline. At the same time, the motor 1004 is started, and the motor 1004 drives the lead screw 1003 to rotate forward and backward. The forward and backward rotation of the lead screw 1003 can cooperate with the second slide groove 1011 to drive the slider 1010 to move back and forth, thereby driving the connecting seat 1005 and the cleaning plate 1006 to move back and forth. When the cleaning plate 1006 moves back and forth, it can continuously clean the filter screen plate 1008, effectively preventing impurities from clogging the filter screen plate 1008. This eliminates the need for frequent manual cleaning and eliminates the need to frequently stop the filtration operation, greatly improving work efficiency and effectively reducing safety hazards.

[0033] The bristle part 1012 is made of polyetheretherketone material, and the connecting seat 1005 and the cleaning plate 1006 are both made of polyvinylidene fluoride material. This is to ensure that the bristle part 1012, the connecting seat 1005 and the cleaning plate 1006 have high alkali resistance and corrosion resistance, making them less prone to damage and extending their service life.

[0034] Among them, after removing the filter screen plate 1008 and the activated carbon filter plate 1009, the filter screen plate 1008 and the activated carbon filter plate 1009 can be quickly separated by loosening the four threaded caps 1015, and they can be cleaned or replaced respectively.

[0035] Among them, the lifting rod 1017 is to facilitate the staff to lift and remove the filter screen plate 1008 and the activated carbon filter plate 1009.

[0036] The A-shaped design of the top of the connecting seat 1005 can effectively prevent the waste alkali liquid from splashing widely when it comes into contact with the top of the connecting seat 1005 during transportation, thus improving safety. The front and rear sides of the cleaning plate 1006 are close to but do not contact the front and rear sides of the inside of the liquid inlet 4 to avoid sliding friction between the cleaning plate 1006 and the liquid inlet 4, and to facilitate the movement of the cleaning plate 1006. Specific Implementation Example 2:

[0038] Reference Figure 2 and Figure 6 In a preferred embodiment, the movable seat mechanism 9 includes a fixed seat 901, a drive cylinder 902, and a slide 903. The fixed seat 901 is fixedly installed on the top of the filter box 2. The drive cylinder 902 is fixedly installed through the fixed seat 901. A connecting plate 904 is fixedly connected to the telescopic end of the drive cylinder 902. The slide 903 is slidably connected to two first sliding grooves 5. The top of the connecting plate 904 is fixedly connected to the bottom of the slide 903. The top of the slide 903 is fixedly connected to the bottom of the lifting cylinder 1001.

[0039] In the specific implementation process, after the filtration work is completed, the lifting cylinder 1001 can be activated to extend it, which will drive the lifting seat 1002 to move upward, thereby driving the cleaning plate 1006 to move upward until the bottom brush part of the cleaning plate 1006 is higher than the top of the liquid inlet hopper 4. Then, the drive cylinder 902 can be activated to extend it, which, together with the connecting plate 904 and the first sliding groove 5, will drive the sliding seat 903 to move, thereby driving the connecting seat 1005 and the cleaning plate 1006 to move, until the connecting seat 1005 and the cleaning plate 1006 are both far away from the top of the liquid inlet hopper 4. At this time, the filter screen plate 1008 and the activated carbon filter plate 1009 can be easily and quickly removed for cleaning or replacement to ensure their normal operation next time.

[0040] Working principle: During operation, waste alkaline solution can be manually poured into the inlet hopper 4 or transported to the inlet hopper 4 through a pipeline. Simultaneously, the motor 1004 is started, driving the lead screw 1003 to rotate in both directions. This rotation of the lead screw 1003, in conjunction with the second sliding groove 1011, causes the slider 1010 to move reciprocally, thereby driving the connecting seat 1005 and the cleaning plate 1006 to move back and forth. As the cleaning plate 1006 moves back and forth, it continuously cleans the filter screen 1008, effectively preventing impurities and particles from entering. The filter screen 1008 is blocked, thus eliminating the need for frequent manual cleaning and filtration interruptions, greatly improving work efficiency and reducing safety hazards. The waste alkaline solution after filtration can be pumped to the evaporator 3 by the water pump 6, where it is heated and evaporated. The water vapor separated after evaporation can enter the external condenser through the steam pipe 8 and be condensed into water. Finally, the concentrated alkaline solution is discharged through the drain pipe 7 for recycling.

[0041] After the filtration process is complete, the lifting cylinder 1001 can be activated to extend it, causing the lifting seat 1002 to move upward, which in turn moves the cleaning plate 1006 upward until the bottom brush part of the cleaning plate 1006 is higher than the top of the liquid inlet hopper 4. Then, the drive cylinder 902 can be activated to extend it, which, in conjunction with the connecting plate 904 and the first sliding groove 5, moves the sliding seat 903, thereby moving the connecting seat 1005 and the cleaning plate 1006, until both the connecting seat 1005 and the cleaning plate 1006 are far away from the top of the liquid inlet hopper 4. At this point, the filter screen plate 1008 and the activated carbon filter plate 1009 can be easily and quickly removed for cleaning or replacement to ensure their normal operation next time.

[0042] 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 any specific implementation. 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 alkali recovery device, comprising a base (1), characterized in that: A filter box (2) and an evaporator (3) are fixedly mounted on the top of the base (1). A rectangular liquid inlet hopper (4) is connected to the top of the filter box (2). Two first sliding grooves (5) are opened horizontally on the top of the filter box (2). A water pump (6) is connected to one side of the filter box (2). The water outlet of the water pump (6) is connected to the inside of the evaporator (3). A drain pipe (7) with a valve is provided at the bottom of the evaporator (3). A steam pipe (8) is provided at the top of the evaporator (3). A condenser is connected to the outside of the steam pipe (8). The movable seat mechanism (9) is located on the top of the filter box (2) and is slidably connected to the two first slide grooves (5); A lifting cleaning mechanism (10) includes a lifting cylinder (1001), a lifting seat (1002), a lead screw (1003), a motor (1004), a connecting seat (1005), a cleaning plate (1006), a support block (1007), a filter screen plate (1008), and an activated carbon filter plate (1009). The bottom of the lifting cylinder (1001) is connected to the moving seat mechanism (9), and the bottom of the lifting seat (1002) is connected to the lifting cylinder (1006). The telescopic end of the 01) is connected, and the lead screw (1003) is rotatably mounted on the top of the lifting seat (1002) through two bearing seats. A slider (1010) is screwed to the outside of the lead screw (1003). Two second sliding grooves (1011) are opened laterally on the top of the lifting seat (1002). The bottom of the slider (1010) is slidably connected to the two second sliding grooves (1011) through a sliding connector. The motor (1004) is fixedly mounted on the top of the lifting seat (1002). The motor (1004) is connected to the lead screw (1003), one side of the connecting seat (1005) is fixedly connected to one side of the slider (1010), the top of the cleaning plate (1006) is fixedly connected to the top of the connecting seat (1005), and the bottom of the cleaning plate (1006) is provided with a brush part (1012). Two sets of support blocks (1007) are provided, and the two sets of support blocks (1007) are respectively fixedly installed on both sides of the inside of the liquid inlet hopper (4). The filter screen plate (1008) and the activated carbon filter plate (1009) are detachably and fixedly connected, and the filter screen plate (1008) is located above the activated carbon filter plate (1009). The bottom of the activated carbon filter plate (1009) abuts against the top of the two sets of support blocks (1007). The top of the filter screen plate (1008) contacts the bottom of the brush part (1012). The dimensions of the filter screen plate (1008) and the activated carbon filter plate (1009) match the internal dimensions of the liquid feeding hopper (4).

2. The alkali recovery device according to claim 1, characterized in that: The bristle section (1012) is made of polyetheretherketone (PEEK), and the connector (1005) and cleaning plate (1006) are both made of polyvinylidene fluoride (PVDF).

3. The alkali recovery device according to claim 1, characterized in that: The bottom of the filter plate (1008) is provided with multiple connecting rods (1013), and the activated carbon filter plate (1009) is provided with multiple connecting grooves (1014). The connecting grooves (1014) are matched and sleeved with the connecting rods (1013). The bottom of the connecting rod (1013) is screwed with a threaded cap (1015). The outside of the connecting rod (1013) is provided with a limiting block (1016). The bottom of the limiting block (1016) is in close contact with the top of the activated carbon filter plate (1009).

4. The alkali recovery device according to claim 1, characterized in that: Two lifting rods (1017) are fixedly connected to the top of the filter plate (1008), and the two lifting rods (1017) are respectively close to the two sides of the filter plate (1008).

5. The alkali recovery device according to claim 1, characterized in that: The top of the connecting seat (1005) is A-shaped, and the front and rear sides of the cleaning plate (1006) are close to but do not contact the interior front and rear sides of the liquid inlet (4).

6. The alkali recovery device according to claim 1, characterized in that: The movable seat mechanism (9) includes a fixed seat (901), a drive cylinder (902), and a slide (903). The fixed seat (901) is fixedly installed on the top of the filter box (2). The drive cylinder (902) is fixedly installed through the fixed seat (901). The telescopic end of the drive cylinder (902) is fixedly connected to a connecting plate (904). The slide (903) is slidably connected to two first sliding grooves (5). The top of the connecting plate (904) is fixedly connected to the bottom of the slide (903). The top of the slide (903) is fixedly connected to the bottom of the lifting cylinder (1001).

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