A decolorization device for producing dibenzoylmethane

Abstract

The invention relates to the field of decolorization devices, and discloses a decolorization device for producing dibenzoylmethane. The device comprises a bottom plate, a filter barrel is fixedly mounted on the top of the bottom plate, a cover opening device is fixedly mounted on the top of the filter barrel, the cover opening device comprises a bottom cover fixedly mounted on the top of the filter barrel, a top cover is arranged on the top of the bottom cover, and a filter device is slidably mounted at the center of the top cover. The invention forms a cavity by lifting and lowering an upper filter element and a lower filter element inside the filter device, so that a reaction liquid and activated carbon powder are fully combined. When the reaction liquid and the activated carbon are decolorized, when the reaction liquid flows out from the inside of the filter barrel, no activated carbon powder remains in the reaction liquid, and a stirring component stirs the activated carbon inside the cavity surrounded by the upper filter element and the lower filter element, so as to improve the decolorization speed and sufficiency of the activated carbon and the reaction liquid, and isolate the reaction liquid and the activated carbon powder after the decolorization is completed, so that the activated carbon powder is conveniently replaced, the inside of the filter barrel is not polluted, and the cleaning difficulty is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of decolorization devices, and more specifically, to a decolorization device for producing dibenzoylmethane. Background Art

[0002] Dibenzoylmethane is a colorless rhombic flaky crystal. It is easily soluble in chlorohydrin and chloroform, soluble in sodium hydroxide solution, insoluble in sodium carbonate solution, and very slightly soluble in water. It can be used to make PVC mineral water bottles and detection reagents, etc. However, it will be colored during the crystal preparation and reaction process, and is generally decolorized by activated carbon adsorption and filtration.

[0003] A patent application with publication number CN204395526U discloses a decolorization device in the synthesis process of dibenzoylmethane, including a cylinder, an inlet and an outlet are respectively provided at the top and bottom ends of the cylinder, a door is opened on the surrounding side wall of the cylinder, a seal is provided around the door, four protrusions are arranged at intervals on the inner wall at the same height of the lower part of the cylinder, and non-woven fabric, a first adsorption box, an open hole filter plate and a second adsorption box are placed on the protrusions from top to bottom in sequence, wherein holes are provided on the top and bottom of the first adsorption box and the second adsorption box, and activated carbon particles are filled therein. It has a simple structure and obvious decolorization effect, and can effectively remove impurity ions brought in by the reaction device during production.

[0004] During use of the above-mentioned device, decolorization is performed by adsorption filtration using non-woven fabric and activated carbon. At this time, dibenzoylmethane needs to be dissolved in the liquid. During use of the above-mentioned device, activated carbon may be dissolved in the liquid. The activated carbon appears in the filtered liquid, so the activated carbon needs to be filtered again, adding steps to the decolorization process. Summary of the invention

[0005] The present invention provides a decolorization device for producing dibenzoylmethane, which solves the technical problem in the related art that activated carbon may be dissolved into liquid during the decolorization process, and the activated carbon appears in the liquid after filtration and decolorization, so that the activated carbon needs to be filtered again, which increases the steps in the decolorization process.

[0006] The invention provides a decolorizing device for producing dibenzoylmethane, comprising a bottom plate, a liquid delivery box is fixedly installed on the top edge of the bottom plate, a first liquid inlet pipe is fixedly installed on the side wall of the liquid delivery box, a second liquid inlet pipe is fixedly installed on the top of the liquid delivery box, a filter barrel is fixedly installed on the end of the second liquid inlet pipe, a bottom support block is fixedly installed on the outer wall of the lower end of the filter barrel, the bottom support block is fixedly installed on the upper end of the bottom plate, a cover opening device is fixedly installed on the top of the filter barrel, the cover opening device is used to seal the filter barrel, the cover opening device comprises a bottom cover fixedly installed on the top of the filter barrel, a top cover is arranged on the top of the bottom cover, a filter device is slidably installed at the center of the top cover, The filter device is used to filter the liquid entering the filter barrel, and the filter device includes: a first lifting threaded rod slidably installed inside the center of the top cover; an upper filter element slidably installed on the outside of the first lifting threaded rod; an inner slide groove arranged inside the first lifting threaded rod; a top convex plate slidably installed inside the inner slide groove, and the bottom end of the top convex plate is fixedly installed with an inner slide rod; a lower filter element rotatably installed at the bottom end of the inner slide rod, the inner slide rod and the upper filter element slide on the inner wall of the filter barrel, the inner slide rod and the upper filter element form a filter cavity inside the filter barrel, and activated carbon is arranged inside for decolorizing the liquid passing through the inner slide rod and the upper filter element.

[0007] As a further optimization scheme of the present invention, the upper filter element includes: a first slider slidably mounted on the outer wall of the first lifting threaded rod; a second slider rotatably mounted on the outer wall of the first slider; a limiting arc rod fixedly mounted on the outer wall of the second slider, the limiting arc rods being distributed in a circular array with the second slider as the center; a sealing block fixedly mounted on the end of the limiting arc rod, the sealing block being slidably mounted on the inner wall of the filter barrel; a filtering non-woven fabric fixedly mounted on the bottom end of the outer wall of the first slider and the top end of the inner wall of the sealing block, the filtering non-woven fabric allowing liquid to pass through.

[0008] As a further optimization solution of the present invention, the lower filter element is symmetrically arranged with respect to the upper filter element, and the mass of the lower filter element is greater than the mass of the upper filter element.

[0009] As a further optimization scheme of the present invention, a stirring assembly is provided at the bottom end of the first lifting threaded rod, and the stirring assembly is used to stir the liquid inside the lower filter element and the upper filter element, and the stirring assembly includes: a first rotating block slidably installed at the bottom end of the first lifting threaded rod; a rotating cylinder rotatably installed inside the first rotating block, and the rotating cylinders are distributed in a circular array with the first rotating block as the center; a fan blade fixedly installed at one end of the rotating cylinder; a second tooth fixedly installed at the other end of the rotating cylinder; a second square groove arranged on the outer wall of the first lifting threaded rod, and the side wall of the second square groove is fixedly installed with a first tooth, and the first tooth is meshed with the second tooth.

[0010] As a further optimization scheme of the present invention, the cover opening device also includes: a third limit block fixedly installed on the outside of the top end of the top cover; a transmission block fixedly installed on the side wall of the third limit block; a fixed ring fixedly installed on the outer wall of the upper end of the filter barrel; a fixed protrusion fixedly installed on the outer wall of the fixed ring; a transmission block rotatably installed on the side wall of the fixed protrusion; and a worm gear rotatably installed on the side of the fixed protrusion, the worm gear being meshed with the bottom end of the transmission block for adjusting the angle of the transmission block.

[0011] As a further optimization scheme of the present invention, a first spring is fixedly installed on the top of the second slider, and a first limit block is fixedly installed on the upper end of the stirring assembly on the outer wall of the first lifting threaded rod, and the first limit block is used to block the length of the first lifting threaded rod sliding inside the first slider.

[0012] As a further optimization scheme of the present invention, a rotating block is rotatably mounted on the bottom end of the first rotating block, a second spring is fixedly mounted on the bottom end of the rotating block, and the bottom end of the second spring is fixedly mounted on the top end of the lower filter element.

[0013] As a further optimization scheme of the present invention, the outer wall of the first lifting threaded rod is provided with a first square groove, and the top of the top cover is provided with an adjusting device, and the adjusting device is used to adjust the engagement with the first lifting threaded rod and the first square groove, so as to drive the first lifting threaded rod to lift or rotate, and the adjusting device includes: a first gear rotatably installed on the top center of the top cover; a second limit block fixedly installed on the top top of the top cover; a fan blade adjustment mark block fixedly installed on the top top of the first lifting threaded rod; a third lifting rod slidably installed on the inner edge of the fan blade adjustment mark block, the bottom end of the third lifting rod is fixedly installed with a bottom limit block, and the top end of the bottom limit block is fixedly installed with a third spring, and the third spring is concentric with the third lifting rod.

[0014] As a further optimization scheme of the present invention, the adjustment device also includes: a rotating lifting adjustment block slidably installed on the outer wall of the upper end of the first lifting threaded rod; a second lifting rod slidably installed inside the rotating lifting adjustment block, a top limit block is fixedly installed on the top of the second lifting rod, and the top limit block is used to limit the second lifting rod; a second lifting block fixedly installed at the bottom end of the second lifting rod; a gear groove arranged inside the first gear, a notch is arranged inside the second limit block, and the gear groove and the notch inside the second limit block are used for the second lifting rod to slide and engage.

[0015] As a further optimization scheme of the present invention, a square limit block and a liquid inlet are arranged inside the filter barrel, and the square limit block is used to block the lower filter element to prevent the bottom end of the lower filter element from contacting the inner wall of the bottom end of the filter barrel, and when the upper filter element and the lower filter element are working, the height of the sealing block is lower than the height of the liquid inlet.

[0016] The beneficial effects of the present invention are:

[0017] 1. A decolorization device for dibenzoylmethane production described in the present invention forms a cavity by lifting the upper filter element and the lower filter element inside the filter device, so that the reaction liquid and the activated carbon powder are fully combined. When the reaction liquid and the activated carbon are decolorized, when the reaction liquid flows out from the inside of the filter barrel, no activated carbon powder will remain in the reaction liquid, and the stirring component stirs the activated carbon inside the cavity surrounded by the upper filter element and the lower filter element, thereby increasing the decolorization speed and sufficiency of the activated carbon and the reaction liquid. At the same time, after the decolorization is completed, the reaction liquid and the activated carbon powder are separated, which is convenient for replacing the activated carbon powder. The activated carbon will not adhere to the inside of the filter barrel, reducing the difficulty of cleaning.

[0018] 2. The decolorization device for dibenzoylmethane production described in the present invention drives the filter device to rotate and rise and fall through the first gear inside the adjustment device to achieve the stirring function and the function of removing the activated carbon powder from the reaction liquid, and the bottom cover and top cover and the transmission block inside the opening device can open the inside of the filter barrel, which is convenient for replacing the activated carbon powder and cleaning the inside of the filter barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the appearance diagram of the overall device of the present invention;

[0020] Figure 2 It is a side view of the overall device of the present invention;

[0021] Figure 3 It is a front view of the overall device of the present invention;

[0022] Figure 4 is a cross-sectional view of the interior of the overall device of the present invention;

[0023] Figure 5 It is the internal structure diagram of the filter device of the present invention;

[0024] Figure 6 This is a diagram showing the internal structure of the filter barrel of the present invention;

[0025] Figure 7 It is the internal connection diagram of the stirring assembly of the present invention;

[0026] Figure 8 It is a structural diagram of the cover opening device of the present invention;

[0027] Fig. 9 It is a structural diagram of the regulating device of the present invention.

[0028] In the figure:

[0029] 1. Bottom plate; 11. Liquid delivery box; 12. First liquid inlet pipe; 13. Bottom support block; 14. Filter barrel; 141. Liquid inlet; 142. Square limit block; 15. Second liquid inlet pipe; 16. Second liquid outlet pipe;

[0030] 2. Filter device; 21. First lifting threaded rod; 211. Inner slide groove; 212. First square groove; 213. Second square groove; 214. First tooth; 22. Upper filter element; 221. First slider; 222. Second slider; 223. Limiting arc rod; 224. Filter non-woven fabric; 225. Sealing block; 23. Stirring assembly; 231. First rotating block; 232. Rotating cylinder; 233. Fan blade; 234. Second tooth; 24. First limiting block; 25. First spring; 26. Inner slide rod; 261. Top convex disc; 27. Second spring; 28. Lower filter element;

[0031] 3. Adjustment device; 31. First gear; 311. Gear slot; 32. Second stop block; 33. Rotation lifting adjustment block; 331. Top stop block; 332. Second lifting rod; 333. Second lifting block; 34. Blade adjustment marking block; 341. Third lifting rod; 342. Third spring; 343. Bottom stop block;

[0032] 4. Cover opening device; 41. Bottom cover; 42. Top cover; 43. Fixed ring; 44. Transmission block; 45. Third limit block; 46. Fixed protrusion; 47. Worm gear. DETAILED DESCRIPTION

[0033] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0034] like Figures 1 to 9 As shown, a decolorization device for producing dibenzoylmethane described in an embodiment of the present invention comprises a bottom plate 1, a liquid feeding box 11 is fixedly installed on the top edge of the bottom plate 1, a first liquid inlet pipe 12 is fixedly installed on the side wall of the liquid feeding box 11, a second liquid inlet pipe 15 is fixedly installed on the top of the liquid feeding box 11, a filter barrel 14 is fixedly installed on the end of the second liquid inlet pipe 15, a bottom support block 13 is fixedly installed on the outer wall of the lower end of the filter barrel 14, the bottom support block 13 is fixedly installed on the upper end of the bottom plate 1, a cover opening device 4 is fixedly installed on the top of the filter barrel 14, the cover opening device 4 is used to seal the filter barrel 14, the cover opening device 4 comprises a bottom cover 41 fixedly installed on the top of the filter barrel 14, a top cover 42 is provided on the top of the bottom cover 41, a filter device 2 is slidably installed at the center of the top cover 42, The filter device 2 is used to filter the liquid entering the filter barrel 14, and the filter device 2 includes: a first lifting threaded rod 21 slidably mounted inside the center of the top cover 42; an upper filter element 22 slidably mounted on the outside of the first lifting threaded rod 21; an inner slide groove 211 arranged inside the first lifting threaded rod 21; a top boss 261 slidably mounted inside the inner slide groove 211, and an inner slide rod 26 is fixedly mounted on the bottom end of the top boss 261; a lower filter element 28 rotatably mounted at the bottom end of the inner slide rod 26, the inner slide rod 26 and the upper filter element 22 slide on the inner wall of the filter barrel 14, the inner slide rod 26 and the upper filter element 22 form a filter cavity inside the filter barrel 14, and activated carbon is arranged inside to decolorize the liquid passing through the inner slide rod 26 and the upper filter element 22.

[0035] It should be noted that during the manufacturing process of dibenzoylmethane, due to the influence of loading equipment and pipelines, the dibenzoylmethane product will have the problem of dyeing. In order to obtain dibenzoylmethane of higher purity, it is necessary to decolorize it. The decolorization treatment in the prior art is to dissolve dibenzoylmethane in a reaction solution acidified with hydrochloric acid, and then pass the reaction solution into the decolorization device in the above-mentioned comparative document, and use non-woven fabrics and activated carbon for filtering and decolorization. However, during use, the activated carbon and non-woven fabric are inside the decolorization device, and the activated carbon generally needs to be replaced after two to three uses. The activated carbon is installed inside the decolorization device and is not convenient to replace. The generally used activated carbon is in powder form. During filtering and replacement, the activated carbon may be integrated into the filtered liquid and fall into the decolorization device, resulting in the presence of activated carbon in the reaction solution after decolorization. The activated carbon needs to be filtered again, which is more troublesome. In order to solve this problem, the following improvements have been made:

[0036] In the initial state, the upper filter element 22 and the lower filter element 28 are in contact with each other, the inner bottom of the lower filter element 28 is provided with activated carbon, and the filter barrel 14 is provided with a liquid inlet 141. Figure 6As shown, the bottom end of the lower filter element 28 is higher than the top end of the liquid inlet 141. When dibenzoylmethane needs to be decolorized, the first lifting threaded rod 21 is first rotated, and the first lifting threaded rod 21 drives the first sliding block 221 to move vertically downward. At this time, the upper filter element 22 and the lower filter element 28 are still in a meshing state. When the upper filter element 22 moves to the bottom end of the liquid inlet 141, the rotation of the first lifting threaded rod 21 is stopped. A telescopic rod is arranged inside the first lifting threaded rod 21. The telescopic rod is started to drive the inner sliding rod 26 to move. The inner sliding rod 26 continues to move vertically downward, driving the lower filter element 28 to move vertically downward. When When the lower filter element 28 moves to the upper part of the bottom end of the filter barrel 14 (at this time, the bottom end of the lower filter element 28 does not contact the bottom inner wall of the filter barrel 14), it stops moving. At this time, the upper filter element 22 and the lower filter element 28 contact the inside of the filter barrel 14 to form a filtering cavity. The inside of this cavity can allow the dibenzoylmethane reaction liquid (hereinafter referred to as the reaction liquid) to pass through. At this time, the liquid feeding box 11 is opened, and the liquid feeding box 11 passes the reaction liquid into the inside of the second liquid inlet pipe 15 and flows into the inside of the filter barrel 14 through the liquid inlet port 141. The reaction liquid first passes through the filtering non-woven fabric 224 on the upper filter element 22, and enters the upper filter element 22 and The inside of the cavity formed by the lower filter element 28 is adsorbed by the activated carbon, and the lower filter element 28 and the upper filter element 22 are both provided with a filter non-woven fabric 224, and then filtered through the filter non-woven fabric 224 inside the lower filter element 28, and the decolorization treatment is completed. The bottom end of the filter barrel 14 is provided with a second liquid outlet pipe 16, and the decolorized reaction liquid flows out through the second liquid outlet pipe 16, and the decolorization treatment is completed. The upper end of the filter barrel 14 is provided with a cover opening device 4, and the cover opening device 4 can limit the first lifting threaded rod 21 and seal the inside of the filter barrel 14 at the same time. This device can make the reaction liquid adsorbed when passing through the activated carbon. A filtering non-woven fabric 224 is placed for filtering to prevent the activated carbon from flowing out of the second liquid outlet pipe 16 with the reaction liquid. After the decolorization is completed, the telescopic rod inside the first lifting threaded rod 21 is started again to drive the lower filter element 28 to reset until the bottom end of the upper filter element 22 contacts the top end of the lower filter element 28. The first lifting threaded rod 21 is driven by a motor to rotate, which can drive the upper filter element 22 and the lower filter element 28 to move upward, thereby completing the filtration and decolorization. When the filtering non-woven fabric 224 and the activated carbon need to be replaced, the bottom cover 41 and the top cover 42 can be opened through the cover opening device 4 to replace the filtering non-woven fabric 224 and the activated carbon powder.

[0037] like Figures 3 to 5As shown, the upper filter element 22 includes: a first slider 221 slidably mounted on the outer wall of the first lifting threaded rod 21; a second slider 222 rotatably mounted on the outer wall of the first slider 221; a limiting arc rod 223 fixedly mounted on the outer wall of the second slider 222, and the limiting arc rods 223 are distributed in a circular array with the second slider 222 as the center; a sealing block 225 fixedly mounted at the end of the limiting arc rod 223, and the sealing block 225 is slidably mounted with the inner wall of the filter barrel 14: a filtering non-woven fabric 224 fixedly mounted at the bottom end of the outer wall of the first slider 221 and the top end of the inner wall of the sealing block 225, and the filtering non-woven fabric 224 allows liquid to pass through.

[0038] It should be noted that, considering the need to understand the working status of the upper filter element 22, the specific structure of the upper filter element 22 is disclosed. The rotation of the first lifting threaded rod 21 can drive the first slider 221 to rise and fall, and the sealing block 225 slides inside the filter barrel 14. The connection position of the sealing block 225 and the filter barrel 14 has friction. When the upper filter element 22 moves up and down, the sealing block 225 is prevented from rotating. The design of the filtering non-woven fabric 224 and the limiting arc rod 223 can make the area surrounded by the upper filter element 22 and the lower filter element 28 larger, thereby increasing the reaction liquid flowing into the area surrounded by the upper filter element 22 and the lower filter element 28. When the sealing block 225 on the upper filter element 22 moves to the lower end of the filter barrel 14, the upper filter element 22 can be stopped from descending, so that the reaction liquid enters the area surrounded by the upper filter element 22 and the lower filter element 28, thereby contacting the activated carbon inside the upper filter element 22 and the lower filter element 28 to complete the decolorization.

[0039] like Figures 3 to 5 As shown, the lower filter element 28 is symmetrically arranged with the upper filter element 22 , and the mass of the lower filter element 28 is greater than the mass of the upper filter element 22 .

[0040] It should be noted that the lower filter element 28 is symmetrically arranged with the upper filter element 22, so that the upper filter element 22 and the lower filter element 28 can enclose a certain area or cavity during the movement, so that the reaction liquid can be filtered and decolorized when the reaction liquid passes through. The mass of the lower filter element 28 is greater than the mass of the upper filter element 22, so that the lower filter element 28 can continue to descend due to its own gravity, so that it is at the bottom when the reaction liquid enters.

[0041] like Figures 4 to 7As shown, a stirring assembly 23 is provided at the bottom end of the first lifting threaded rod 21, and the stirring assembly 23 is used to stir the liquid inside the lower filter element 28 and the upper filter element 22, and the stirring assembly 23 includes: a first rotating block 231 slidably installed at the bottom end of the first lifting threaded rod 21; a rotating cylinder 232 rotatably installed inside the first rotating block 231, and the rotating cylinder 232 is distributed in a circular array with the first rotating block 231 as the center; a fan blade 233 fixedly installed at one end of the rotating cylinder 232; a second tooth 234 fixedly installed at the other end of the rotating cylinder 232; a second square groove 213 provided on the outer wall of the first lifting threaded rod 21, and the side wall of the second square groove 213 is fixedly installed with a first tooth 214, and the first tooth 214 is meshed with the second tooth 234.

[0042] It should be noted that, considering that the activated carbon can fully contact with the reaction liquid, a stirring assembly 23 is provided inside the upper filter element 22 and the lower filter element 28, and the stirring assembly 23 can be driven to rotate by rotating the first lifting threaded rod 21, so as to stir the reaction liquid inside, accelerate the contact area between the activated carbon and the reaction liquid, and prevent the activated carbon from accumulating inside the lower filter element 28. When the first lifting threaded rod 21 drives the stirring assembly 23 to rotate, it can be divided into two states. First, the telescopic rod is used to drive the first rotating block 231 to rise, and then the angle of the fan blade 233 can be adjusted, so that when the fan blade 233 rotates, the reaction liquid is driven to stir downward from the center, thereby stirring the lower filter element 28. The activated carbon gathered at the bottom of the filter element 28 floats upward through the arc of the limiting arc rod 223 set on the lower filter element 28. Conversely, the first rotating block 231 is driven to descend by the telescopic rod. When the first lifting threaded rod 21 rotates, the fan blade 233 can be driven to rotate in the opposite direction, thereby stirring the reaction liquid from the center upward. During the stirring process, the activated carbon is gathered at the bottom center position of the lower filter element 28. When the filter device 2 is taken out through the cover opening device 4, it is convenient to replace the activated carbon and prevent the activated carbon from being dispersed on the filtering non-woven fabric 224, which is difficult to collect and clean. The filtering non-woven fabric 224 can filter while preventing the problem of activated carbon existing in the reaction liquid after filtration.

[0043] like Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 8As shown, the cover opening device 4 also includes: a third limit block 45 fixedly installed on the outer side of the top end of the top cover 42; a transmission block 44 fixedly installed on the side wall of the third limit block 45; a fixing ring 43 fixedly installed on the outer wall of the upper end of the filter barrel 14; a fixing protrusion 46 fixedly installed on the outer wall of the fixing ring 43; a transmission block 44 rotatably installed on the side wall of the fixing protrusion 46; a worm gear 47 rotatably installed on the side of the fixing protrusion 46, the worm gear 47 is meshed with the bottom end of the transmission block 44, and is used to adjust the angle of the transmission block 44.

[0044] It should be noted that, considering that the activated carbon in the filter device 2 needs to be replaced after use, a cover opening device 4 is provided at the top of the filter barrel 14. When the upper filter element 22 and the lower filter element 28 are at the uppermost end of the filter barrel 14, the worm gear 47 is driven by the motor to rotate, and the rotation of the worm gear 47 drives the transmission block 44 to rotate with the fixed protrusion 46 as the center of the circle, thereby driving the third limit block 45 and the top cover 42 to rotate with the fixed protrusion 46 as the center of the circle, thereby removing the filter device 2 from the inside of the filter barrel 14. The transmission block 44 and the worm gear 47 have a locking effect. The third limit block 45 is rotated 180° with the fixed protrusion 46 as the center. The rotation of the worm gear 47 can fix the position of the filter device 2 and the top cover 42. Then, the upper filter element 22 and the lower filter element 28 are separated by rotating the first lifting threaded rod 21, so that the activated carbon inside can be taken out. At the same time, it is convenient to clean and replace the filter non-woven fabric 224 inside the upper filter element 22 and the lower filter element 28, and it is convenient to clean and flush the inside of the filter barrel 14.

[0045] like Figure 6 As shown, a first spring 25 is fixedly installed on the top of the second slider 222, and a first limit block 24 is fixedly installed on the upper end of the stirring assembly 23 located on the outer wall of the first lifting threaded rod 21, and the first limit block 24 is used to block the length of the first lifting threaded rod 21 sliding inside the first slider 221.

[0046] It should be noted that a detector and a buckle are provided inside the first slider 221 and the second slider 222. The detector detects whether the sealing block 225 is located at the upper end and the lower end of the liquid inlet 141. When the top height of the sealing block 225 is lower than the height of the liquid inlet 141, the first spring 25 is engaged with the second slider 222, so that the first spring 25 can rotate with the first lifting threaded rod 21, and the first slider 221 is rotatably connected with the second slider 222. At this time, the rotation of the first lifting threaded rod 21 will not drive the upper filter element 22 to rise and fall along the length direction of the first lifting threaded rod 21. When the height of the sealing block 225 is higher than the position of the liquid inlet 141, the first slider 221 is engaged with the upper filter element 22, so that the first lifting threaded rod 2 The rotation of the first lifting threaded rod 21 can drive the upper filter element 22 to rise and fall, and when the first lifting threaded rod 21 rotates to drive the upper filter element 22 to rise along the length direction of the first lifting threaded rod 21, the lower filter element 28 at the lower end can be driven to approach the upper filter element 22, so that the lower filter element 28 contacts the upper filter element 22, and when the first limit block 24 contacts the bottom end of the first slider 221, the first slider 221 is disconnected from the second slider 222 again, so that the first slider 221 is rotatably connected to the inside of the second slider 222, and this device can adjust the distance between the upper filter element 22 and the lower filter element 28, so that when the adjusting device 3 drives the filter device 2 to rise and fall, the distance between the upper filter element 22 and the lower filter element 28 is adjusted to form a cavity.

[0047] like Figures 4 to 7 As shown, a rotating block is rotatably mounted on the bottom end of the first rotating block 231 , a second spring 27 is fixedly mounted on the bottom end of the rotating block, and the bottom end of the second spring 27 is fixedly mounted on the top end of the lower filter element 28 .

[0048] It should be noted that a rotating block is rotatably installed at the bottom end of the first rotating block 231, and a second spring 27 is fixedly installed at the bottom end of the rotating block. The bottom end of the second spring 27 is fixedly installed at the top end of the lower filter element 28. When the telescopic rod inside the first lifting threaded rod 21 is extended to the longest state, the second spring 27 is in a state of no force, preventing the first rotating block 231 from rotating and driving the second spring 27 to rotate, which will not affect the connectivity between the stirring assembly 23 and the lower filter element 28, thereby improving the safety of the lower filter element 28 when in use.

[0049] like Figures 5 to 9As shown, the outer wall of the first lifting threaded rod 21 is provided with a first square groove 212, and the top of the top cover 42 is provided with an adjusting device 3, and the adjusting device 3 is used to adjust the engagement with the first lifting threaded rod 21 and the first square groove 212, so as to drive the first lifting threaded rod 21 to lift or rotate, and the adjusting device 3 includes: a first gear 31 rotatably installed on the top center of the top cover 42; a second limit block 32 fixedly installed on the top of the top cover 42; a fan blade adjustment mark block 34 fixedly installed on the top of the first lifting threaded rod 21; a third lifting rod 341 slidably installed on the inner edge of the fan blade adjustment mark block 34, the bottom end of the third lifting rod 341 is fixedly installed with a bottom limit block 343, and the top of the bottom limit block 343 is fixedly installed with a third spring 342, and the third spring 342 is concentric with the third lifting rod 341.

[0050] It should be noted that, considering that it is troublesome to set a telescopic rod inside the first lifting threaded rod 21, a square stopper 142 is set on the inner wall of the filter barrel 14. When the lower end of the lower filter element 28 contacts the top of the square stopper 142, the lower filter element 28 falls to the lowest end specified inside the filter barrel 14, and the first lifting threaded rod 21 is driven to rotate by rotating the first gear 31, thereby continuously driving the upper filter element 22 and the first lifting threaded rod 21 to fall, and the upper filter element 22 and the first lifting threaded rod 21 fall to the lowest end specified inside the filter barrel 14. Fig. 9 As shown in the figure, when the bottom end of the bottom limit block 343 set on the outer wall of the top end of the first lifting threaded rod 21 contacts the top end of the second limit block 32, the second spring 27 is in a normal state, and the second spring 27 will not squeeze the first rotating block 231, so that the fan blade 233 is in a state parallel to the horizontal plane, and when the first gear 31 is continuously rotated, the first gear 31 drives the first lifting threaded rod 21 to descend, and the third lifting rod 341 extends out of the upper end of the fan blade adjustment marking block 34, the second spring 27 will squeeze the first rotating block 231, thereby driving the fan blade 233 to tilt, then when the first square groove 212 on the side wall of the first lifting threaded rod 21 is aligned with the inner surface of the first gear 31, the fan blade 233 is in a state parallel to the horizontal plane, and when the first gear 31 is continuously rotated, the first gear 31 drives the first lifting threaded rod 21 to descend, and the third lifting rod 341 extends out of the upper end of the fan blade adjustment marking block 34, the second spring 27 will squeeze the first rotating block 231, thereby driving the fan blade 233 to tilt, and when the first square groove 212 on the side wall of the first lifting threaded rod 21 is aligned with the inner surface of the first gear 31, the fan blade 233 is in a state parallel to the horizontal plane, and ... When the gear groove 311 at the top is engaged, the upper filter element 22 can be driven to rotate, thereby stirring the reaction liquid flowing into the upper filter element 22 and the lower filter element 28, so that the internal activated carbon can be fully integrated with the reaction liquid, thereby adsorbing the pigment inside the reaction liquid. When the second spring 27 is in an extended state, the lower filter element 28 has reached the bottom. At this time, the fan blade 233 rotates in the opposite direction due to the pulling force of the second spring 27, and the bottom limit block 343 at the upper end is not in contact with the top of the second limit block 32. Therefore, the state of the fan blade 233 inside the stirring assembly 23 can be adjusted by adjusting the height of the first lifting threaded rod 21.

[0051] like Figure 6 and Fig. 9As shown, the adjusting device 3 also includes: a rotating lifting adjustment block 33 slidably mounted on the outer wall of the upper end of the first lifting threaded rod 21; a second lifting rod 332 slidably mounted inside the rotating lifting adjustment block 33, a top limit block 331 is fixedly mounted on the top of the second lifting rod 332, and the top limit block 331 is used to limit the second lifting rod 332; a second lifting block 333 fixedly mounted on the bottom end of the second lifting rod 332; a gear groove 311 is arranged inside the first gear 31, a notch is arranged inside the second limit block 32, and the gear groove 311 and the notch inside the second limit block 32 are used for the second lifting rod 332 to slide and engage.

[0052] It should be noted that, considering that when in use, it is necessary to adjust the first gear 31 to drive the first lifting threaded rod 21 to rise and fall, and at the same time, the first lifting threaded rod 21 can be driven to rotate. At this time, the telescopic rod can be used to squeeze the rotary lifting adjustment block 33, and the rotary lifting adjustment block 33 slides on the outer wall of the first lifting threaded rod 21. The lifting and lowering of the rotary lifting adjustment block 33 can drive the second lifting block 333 at the bottom to engage with the groove inside the second limit block 32. Then, the rotation of the first gear 31 can make the first lifting threaded rod 21 rise and fall. When the telescopic rod rotary lifting adjustment block 33 descends, it can drive the second lifting block 333 to engage with the gear groove 311 inside the first gear 31. Then, the first gear 31 can drive the first lifting threaded rod 21 to rotate, thereby realizing the lifting and rotating of the first lifting threaded rod 21. The lifting and lowering of the first lifting threaded rod 21 can adjust the position of the upper filter element 22 and the lower filter element 28, and the rotation of the first lifting threaded rod 21 can drive the stirring assembly 23 to rotate, thereby stirring the activated carbon inside the upper filter element 22 and the lower filter element 28.

[0053] like Figures 4 to 5 As shown, a square limit block 142 and a liquid inlet 141 are provided inside the filter barrel 14, and the square limit block 142 is used to block the lower filter element 28 to prevent the bottom end of the lower filter element 28 from contacting the inner wall of the bottom end of the filter barrel 14, and when the upper filter element 22 and the lower filter element 28 are working, the height of the sealing block 225 is lower than the height of the liquid inlet 141.

[0054] It should be noted that a square limit block 142 and a liquid inlet 141 are provided inside the filter barrel 14, and the square limit block 142 is used to block the lower filter element 28 to prevent the bottom end of the lower filter element 28 from contacting the inner wall of the bottom end of the filter barrel 14. When the upper filter element 22 and the lower filter element 28 are working, the height of the sealing block 225 is lower than the height of the liquid inlet 141 to prevent the activated carbon powder from entering the liquid inlet 141 and then entering the second liquid inlet pipe 15 to cause reflux when the reaction liquid inside the upper filter element 22 and the lower filter element 28 is stirred.

[0055] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A decolorization device for producing dibenzoylmethane, comprising a bottom plate (1), a liquid feeding box (11) is fixedly mounted on the top edge of the bottom plate (1), a first liquid inlet pipe (12) is fixedly mounted on the side wall of the liquid feeding box (11), a second liquid inlet pipe (15) is fixedly mounted on the top of the liquid feeding box (11), a filter barrel (14) is fixedly mounted on the end of the second liquid inlet pipe (15), a bottom support block (13) is fixedly mounted on the outer wall of the lower end of the filter barrel (14), and the bottom support block (13) is fixedly mounted on the upper end of the bottom plate (1), characterized in that: A cover opening device (4) is fixedly mounted on the top of the filter barrel (14), the cover opening device (4) being used to seal the filter barrel (14), the cover opening device (4) comprising a bottom cover (41) fixedly mounted on the top of the filter barrel (14), a top cover (42) being arranged on the top of the bottom cover (41), a filter device (2) being slidably mounted at the center of the top cover (42), the filter device (2) being used to filter liquid entering the interior of the filter barrel (14), the filter device (2) comprising: A first lifting threaded rod (21) slidably mounted inside the center of the top cover (42); An upper filter element (22) slidably mounted on the outside of the first lifting threaded rod (21); An inner slide groove (211) disposed inside the first lifting threaded rod (21); A top convex plate (261) is slidably mounted inside the inner slide groove (211), and an inner slide rod (26) is fixedly mounted on the bottom end of the top convex plate (261); The lower filter element (28) is rotatably mounted on the bottom end of the inner slide bar (26), the inner slide bar (26) and the upper filter element (22) slide on the inner wall of the filter barrel (14), the inner slide bar (26) and the upper filter element (22) form a filter cavity inside the filter barrel (14), and activated carbon is arranged inside the cavity for decolorizing the liquid passing through the inner slide bar (26) and the upper filter element (22); the upper filter element (22) comprises: A first sliding block (221) slidably mounted on the outer wall of the first lifting threaded rod (21); A second sliding block (222) rotatably mounted on the outer wall of the first sliding block (221); A limiting arc rod (223) fixedly mounted on the outer wall of the second sliding block (222), wherein the limiting arc rods (223) are arranged in a circular array with the second sliding block (222) as the center; A sealing block (225) fixedly mounted on the end of the limiting arc rod (223), the sealing block (225) being slidably mounted on the inner wall of the filter barrel (14); A filtering nonwoven fabric (224) is fixedly mounted on the bottom end of the outer wall of the first sliding block (221) and the top end of the inner wall of the sealing block (225), wherein the filtering nonwoven fabric (224) allows liquid to pass through.

2. A decolorizing device for producing dibenzoylmethane according to claim 1, characterized in that: The lower filter element (28) is symmetrically arranged with respect to the upper filter element (22), and the mass of the lower filter element (28) is greater than the mass of the upper filter element (22).

3. A decolorizing device for producing dibenzoylmethane according to claim 2, characterized in that: A stirring assembly (23) is provided at the bottom end of the first lifting threaded rod (21), and the stirring assembly (23) is used to stir the liquid inside the lower filter element (28) and the upper filter element (22). The stirring assembly (23) comprises: A first rotating block (231) slidably mounted on the bottom end of the first lifting threaded rod (21); Rotating a rotating cylinder (232) installed inside the first rotating block (231), wherein the rotating cylinders (232) are arranged in a circular array with the first rotating block (231) as the center; A fan blade (233) fixedly mounted on one end of the rotating cylinder (232); A second tooth (234) fixedly mounted on the other end of the rotating cylinder (232); A second square groove (213) is provided on the outer wall of the first lifting threaded rod (21), and a first tooth (214) is fixedly mounted on the side wall of the second square groove (213), and the first tooth (214) is meshed with the second tooth (234).

4. A decolorizing device for producing dibenzoylmethane according to claim 3, characterized in that: The cover opening device (4) further comprises: A third limiting block (45) fixedly mounted on the outer side of the top end of the top cover (42); A transmission block (44) fixedly mounted on a side wall of the third limiting block (45); A fixing ring (43) fixedly mounted on the outer wall of the upper end of the filter barrel (14); A fixing protrusion (46) fixedly mounted on the outer wall of the fixing ring (43); A transmission block (44) rotatably mounted on a side wall of a fixed protrusion (46); A worm gear (47) mounted on the side of the fixed protrusion (46) is rotated, and the worm gear (47) is meshed with the bottom end of the transmission block (44) to adjust the angle of the transmission block (44).

5. A decolorizing device for producing dibenzoylmethane according to claim 4, characterized in that: A first spring (25) is fixedly mounted on the top end of the second sliding block (222); a first limit block (24) is fixedly mounted on the upper end of the stirring assembly (23) on the outer wall of the first lifting threaded rod (21); the first limit block (24) is used to block the length of the first lifting threaded rod (21) sliding inside the first sliding block (221).

6. A decolorizing device for producing dibenzoylmethane according to claim 5, characterized in that: A rotating block is rotatably mounted on the bottom end of the first rotating block (231), a second spring (27) is fixedly mounted on the bottom end of the rotating block, and the bottom end of the second spring (27) is fixedly mounted on the top end of the lower filter element (28).

7. A decolorizing device for producing dibenzoylmethane according to claim 6, characterized in that: The outer wall of the first lifting threaded rod (21) is provided with a first square groove (212), and the top end of the top cover (42) is provided with an adjustment device (3), the adjustment device (3) being used to adjust the engagement with the first lifting threaded rod (21) and the first square groove (212), so as to drive the first lifting threaded rod (21) to rise or fall or rotate, the adjustment device (3) comprising: Rotating a first gear (31) mounted on the top center of the top cover (42); A second limiting block (32) fixedly mounted on the top of the top cover (42); A fan blade adjustment marking block (34) fixedly mounted on the top end of the first lifting threaded rod (21); A third lifting rod (341) is slidably mounted on the inner edge of the blade adjustment marking block (34), a bottom limit block (343) is fixedly mounted on the bottom end of the third lifting rod (341), a third spring (342) is fixedly mounted on the top end of the bottom limit block (343), and the third spring (342) is concentric with the third lifting rod (341).

8. A decolorizing device for producing dibenzoylmethane according to claim 7, characterized in that: The regulating device (3) further comprises: A rotary lifting adjustment block (33) slidably mounted on the outer wall of the upper end of the first lifting threaded rod (21); A second lifting rod (332) is slidably mounted inside the rotating lifting adjustment block (33), a top limit block (331) being fixedly mounted on the top of the second lifting rod (332), and the top limit block (331) is used to limit the position of the second lifting rod (332); A second lifting block (333) fixedly mounted on the bottom end of the second lifting rod (332); A gear groove (311) is arranged inside the first gear (31), and a notch is arranged inside the second limit block (32); the gear groove (311) and the notch inside the second limit block (32) are used for sliding engagement of the second lifting rod (332).

9. A decolorizing device for producing dibenzoylmethane according to claim 8, characterized in that: A square stop block (142) and a liquid inlet (141) are provided inside the filter barrel (14); the square stop block (142) is used to block the lower filter element (28) to prevent the bottom end of the lower filter element (28) from contacting the inner wall of the bottom end of the filter barrel (14); when the upper filter element (22) and the lower filter element (28) are working, the height of the sealing block (225) is lower than the height of the liquid inlet (141).

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