A hot melt decolorizing kettle for 5-sodium sulfoisophthalate

Abstract

The invention discloses a sodium 5-sulfonate isophthalic acid hot-melt decolorizing kettle, which relates to the technical field of chemical equipment. The kettle comprises a filter tank, a feed port connected to the inside of the filter tank, a limiting rod fixedly connected to the top of the inner side of the filter tank, and a reciprocating mechanism, which is arranged inside the filter tank and cooperates with the limiting rod; a filtering mechanism, which is arranged at the inner bottom of the filter tank; a transparent tank, which is fixedly connected and connected to the bottom of the filter tank, and a stirring rod is arranged inside the transparent tank; the sodium 5-sulfonate isophthalic acid hot-melt decolorizing kettle can reciprocate up and down by arranging a reciprocating mechanism and a power mechanism to cooperate with each other, and the filtering speed can be increased when the plug moves downward; when the plug moves upward, the speed is faster, which can drive the airflow to blow through the filter plate from bottom to top, and impurities in the partially blocked pores in the filter plate are blown out, thereby ensuring the filtering speed and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of chemical equipment, in particular to a hot-melt decolorizing kettle for 5-sodium sulfoisophthalate. Background Art

[0002] Sodium 5-sulfoisophthalate is an intermediate and modifier used in medicine, pesticides and polyester synthesis. It is a stable white powder at room temperature and pressure, soluble in water, irritating and corrosive, and has a certain harmful effect on water bodies. It is used as a polyester dyeing modifier and used to produce modified polyester chips. Sodium 5-sulfoisophthalate can be used to prepare amine-free water-based polyester resins and water-based polyurethanes suitable for various coatings.

[0003] The Chinese patent with publication number CN210206847U, a sodium 5-sulfonisophthalate hot melt decolorization kettle, comprises a hot melt decolorization kettle body and a kettle cover, the kettle cover is detachably connected to the upper end of the hot melt decolorization kettle body, and the left and right sides of the upper surface of the hot melt decolorization kettle body are respectively provided with feeding ports, a first fixed rod, a second fixed rod, a filter disc, a spring, a lever, a lever ball, etc., so that the sodium 5-sulfonisophthalate can be removed from impurities while the hot melt decolorization process is being carried out, so that the product obtained after treatment has higher purity.

[0004] However, the filter disc is moved by a motor-driven lever and a ball, and the filter disc is vibrated by a spring to promote the filtration of 5-sodium sulfoisophthalate. This filtration method mainly relies on the gravity of 5-sodium sulfoisophthalate to pass through the filter disc. The filtration speed is relatively slow, and part of the filtration pores of the filter disc may be blocked during the filtration process, thereby reducing the filtration efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a sodium 5-sulfoisophthalic acid hot-melt decolorizing kettle to solve the above-mentioned shortcomings in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hot melt decolorization kettle of sodium sulfonate of isophthalic acid, comprising a filter tank, a feed port connected to the inside of the filter tank, and a limiting rod fixedly connected to the top of the inner side of the filter tank, including a reciprocating mechanism, the reciprocating mechanism is arranged inside the filter tank and cooperates with the limiting rod, a spline is fixedly connected to the surface of the limiting rod, and the limiting rod cooperates with the lifting column through the spline, so that the limiting rod and the lifting column cannot rotate relative to each other;

[0007] A filtering mechanism, wherein the filtering mechanism is arranged at the inner bottom of the filtering tank;

[0008] A transparent tank, wherein the transparent tank is fixedly connected to and communicated with the bottom of the filter tank, and the transparent tank is transparent so as to facilitate observation of the reaction conditions inside. A stirring rod is provided inside the transparent tank to improve the purity of the product obtained by the hot melt decolorization reaction;

[0009] A shielding mechanism, wherein the shielding mechanism is located at the top of the transparent tank, and the shielding mechanism cooperates with the stirring rod to drive the stirring rod to rotate, and a one-way valve mechanism is provided on both the upper and lower sides of the one-way valve mechanism of the shielding mechanism;

[0010] A power mechanism cooperates with the reciprocating mechanism and the shielding mechanism.

[0011] Furthermore, the reciprocating mechanism includes a lifting column slidably connected to the limiting rod, the surface of the lifting column is provided with a positive spiral groove and a reverse spiral groove with opposite spiral directions and cross-connected, and the positive spiral groove and the reverse spiral groove are connected end to end, and the lower end of the lifting column is fixedly connected to a plug column that cooperates with the piston in the inner cavity of the filter tank; and it also includes a rotating mechanism.

[0012] Furthermore, the rotating mechanism includes a gear ring rotatably connected to the filter tank; a slider slidably connected to both the positive spiral groove and the reverse spiral groove; and a connecting shaft, one end of which is fixedly connected to the gear ring 1, and the other end is rotatably connected to the slider, so that the gear ring 1 can drive the slider to rotate through the connecting shaft, and when the slider rotates, it can respectively drive the lifting column to descend or ascend together with the positive spiral groove and the reverse spiral groove.

[0013] Furthermore, the pitch of the positive spiral groove is shorter than the pitch of the negative spiral groove, so that when the rotation speed of the slider is constant, the rising speed of the lifting column is greater than the descending speed.

[0014] Furthermore, the filtering mechanism includes a filter plate fixedly connected to the inner wall of the filter tank; a retaining ring fixedly connected to the inner wall of the bottom of the filter plate to guide the sodium sulfonate isophthalic acid passing through it to the inside thereof to prevent the sodium sulfonate isophthalic acid from falling into the ventilation pipe; and a sealing cylinder arranged on the lower side of the filter plate and the retaining ring and fixedly connected to the filter plate.

[0015] Furthermore, the shielding mechanism includes a gear ring 2 and an annular groove provided on the upper surface of the gear ring 2, the gear ring 2, the annular groove and the sealing tube are coaxial, the gear ring 2 is rotatably engaged with the sealing tube through the annular groove to prevent the gear ring 2 from being separated from the sealing tube; the fan blades are fixedly connected to the inner side of the gear ring 2, and the fan blades have four blades and are rotationally symmetrical about the axis of the gear ring 2, and the angles between two adjacent blades are equal, and the symmetry centers of the four blades are fixedly connected to the stirring rod.

[0016] Furthermore, the power mechanism includes a protective shell fixedly connected to the filter tank; a motor fixedly connected to the inner wall of the protective shell, the output shaft of the motor fixedly connected to a power gear 1 that can drive the gear ring 2 to rotate, the surface of the power gear 1 fixedly connected to a transmission shaft, and the upper end of the transmission shaft fixedly connected to a power gear 2 that can drive the gear ring 1 to rotate.

[0017] Furthermore, the one-way valve mechanism includes a ventilation pipe, a sealing ball slidably connected in the ventilation pipe; a compression spring having one end fixedly connected to the sealing ball and the other end fixedly connected to the ventilation pipe, the one-way valve mechanism on the upper side of the shielding mechanism passes through the sealing cylinder and the filter tank, and the one-way valve mechanism on the lower side of the shielding mechanism passes through the transparent tank, and the one-way valve mechanisms on the upper and lower sides of the shielding mechanism are arranged in opposite directions, the upper one-way valve mechanism can only allow gas to be discharged from the inside of the filter tank and the transparent tank, and the lower one-way valve mechanism can only allow external gas to enter.

[0018] 1. Compared with the prior art, the hot-melt decolorization kettle of sodium 5-sulfoisophthalate provided by the present invention can reciprocate up and down by setting a reciprocating mechanism and a power mechanism to cooperate with each other. When the plug moves downward, the filtration speed can be increased; when the plug moves upward, the faster speed can drive the airflow to blow through the filter plate from bottom to top, and impurities in the partially blocked pores in the filter plate are blown out, preventing the filter plate from being blocked during the filtration process, thereby ensuring the filtration speed and efficiency.

[0019] 2. Compared with the prior art, the hot melt decolorization kettle of sodium 5-sulfonate isophthalic acid provided by the present invention further improves the speed of the upward airflow passing through the filter disk when the plug moves upward by setting a transparent tank, a one-way valve mechanism, a shielding mechanism, and a power mechanism to cooperate with each other, thereby further improving the impurity removal effect.

[0020] 3. Compared with the prior art, the hot melt decolorization kettle of sodium 5-sulfonate isophthalic acid provided by the present invention drives the reciprocating mechanism, the one-way valve mechanism and the stirring rod to move through a power mechanism, thereby reducing the setting of the power source, reducing the space occupied by the device, reducing the pump cost and improving the power utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall surface provided by an embodiment of the present invention;

[0023] Figure 2A partial half-section diagram of a reciprocating mechanism provided in an embodiment of the present invention;

[0024] Figure 3 A partial half-section view of a filter disc and a stirring rod provided in an embodiment of the present invention;

[0025] Figure 4 A partial schematic diagram of a reciprocating mechanism provided by an embodiment of the present invention;

[0026] Figure 5 A partial schematic diagram of a shielding mechanism provided by an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of a one-way valve mechanism provided in an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 11. Filter tank; 12. Feed inlet; 13. Limiting rod; 21. Transparent tank; 31. Lifting column; 32. Positive spiral groove; 33. Reverse spiral groove; 34. Sliding block; 35. Connecting shaft; 36. Gear ring 1; 37. Plug; 41. Filter plate; 42. Retaining ring; 43. Sealing cylinder; 51. Gear ring 2; 52. Annular groove; 53. Fan blade; 61. Stirring rod; 71. Protective shell; 72. Motor; 73. Power gear 1; 74. Transmission shaft; 75. Power gear 2; 81. Ventilation pipe; 82. Sealing ball; 83. Compression spring. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1:

[0032] See also Figure 1-Figure 5 A hot melt decolorizing kettle for sodium 5-sulfoisophthalate, comprising a filter tank 11, a feed port 12 connected to the inside of the filter tank 11, a limiting rod 13 fixedly connected to the top of the inner side of the filter tank 11, and a reciprocating mechanism, which is arranged inside the filter tank 11 and cooperates with the limiting rod 13, and a spline is fixedly connected to the surface of the limiting rod 13, and the limiting rod 13 cooperates with a lifting column 31 through the spline, so that the limiting rod 13 and the lifting column 31 cannot rotate relative to each other;

[0033] A filtering mechanism, which is arranged at the inner bottom of the filtering tank 11;

[0034] A transparent tank 21, which is fixedly connected to and communicated with the bottom of the filter tank 11. The transparent tank 21 is transparent so as to facilitate observation of the reaction conditions inside. A stirring rod 61 is provided inside the transparent tank 21 to improve the purity of the product obtained by the hot melt decolorization reaction;

[0035] The shielding mechanism is located at the top of the transparent tank 21, and the shielding mechanism cooperates with the stirring rod 61 to drive it to rotate. The shielding mechanism has a one-way valve mechanism on both the upper and lower sides of the one-way valve mechanism;

[0036] The power mechanism cooperates with the reciprocating mechanism and the shielding mechanism.

[0037] The reciprocating mechanism includes a lifting column 31 which is slidably connected to the limiting rod 13. The surface of the lifting column 31 is provided with a positive spiral groove 32 and a reverse spiral groove 33 which have opposite spiral directions and are cross-connected, and the positive spiral groove 32 and the reverse spiral groove 33 are connected end to end. The lower end of the lifting column 31 is fixedly connected to a plug column 37 which cooperates with the inner piston of the filter tank 11; it also includes a rotating mechanism.

[0038] The rotating mechanism includes a gear ring 36 rotatably connected to the filter tank 11; a slider 34 slidably connected to both the positive spiral groove 32 and the reverse spiral groove 33; a connecting shaft 35, one end of the connecting shaft 35 is fixedly connected to the gear ring 36, and the other end is rotatably connected to the slider 34, so that the gear ring 36 can drive the slider 34 to rotate through the connecting shaft 35, and when the slider 34 rotates, it can respectively drive the lifting column 31 to descend or ascend together with the positive spiral groove 32 and the reverse spiral groove 33.

[0039] The pitch of the positive spiral groove 32 is shorter than the pitch of the negative spiral groove 33, so that when the rotation speed of the slider 34 is constant, the rising speed of the lifting column 31 is greater than the descending speed.

[0040] The filtering mechanism includes a filter disc 41 fixedly connected to the inner wall of the filter tank 11; a retaining ring 42 fixedly connected to the inner wall of the bottom of the filter disc 41 to guide the sodium 5-sulfoisophthalate passing through it to the inside thereof to prevent the sodium 5-sulfoisophthalate from falling into the vent pipe 81; and a sealing cylinder 43 arranged on the lower side of the filter disc 41 and the retaining ring 42 and fixedly connected to the filter disc 41.

[0041] The shielding mechanism includes a gear ring 2 51 and an annular groove 52 opened on the upper surface of the gear ring 2 51. The gear ring 2 51 and the annular groove 52 are coaxial with the sealing tube 43. The gear ring 2 51 is rotatably engaged with the sealing tube 43 through the annular groove 52 to prevent the gear ring 2 51 from being separated from the sealing tube 43; the fan blades 53 are fixedly connected to the inner side of the gear ring 2 51, and the fan blades 53 have four blades and are rotationally symmetrical about the axis of the gear ring 2 51, and the angles between two adjacent fan blades 53 are equal, and the symmetry centers of the four fan blades 53 are fixedly connected to the stirring rod 61.

[0042] The power mechanism includes a protective shell 71 fixedly connected to the filter tank 11; a motor 72 fixedly connected to the inner wall of the protective shell 71, the output shaft of the motor 72 is fixedly connected to a power gear 1 73 that can drive the gear ring 2 51 to rotate, the surface of the power gear 1 73 is fixedly connected to a transmission shaft 74, and the upper end of the transmission shaft 74 is fixedly connected to a power gear 2 75 that can drive the gear ring 1 36 to rotate.

[0043] Embodiment 2:

[0044] See also Figure 6 This embodiment provides a technical solution based on the first embodiment: the one-way valve mechanism includes a vent pipe 81, a sealing ball 82 slidably connected in the vent pipe 81; a compression spring 83 with one end fixedly connected to the sealing ball 82 and the other end fixedly connected to the vent pipe 81, the one-way valve mechanism on the upper side of the shielding mechanism passes through the sealing cylinder 43 and the filter tank 11, the one-way valve mechanism on the lower side of the shielding mechanism passes through the transparent tank 21, and the one-way valve mechanisms on the upper and lower sides of the shielding mechanism are arranged in opposite directions, the upper one-way valve mechanism can only allow gas to be discharged from the inside of the filter tank 11 and the transparent tank 21, and the lower one-way valve mechanism can only allow external gas to enter.

[0045] Working principle: When in use, first add sodium 5-sulfonisophthalate into the interior of the filter tank 11 through the feed port 12, start the motor 72, and the motor 72 rotates to drive the power gear 1 73 fixedly connected to its output shaft to rotate, and drives the power gear 2 75 to rotate through the transmission shaft 74, and the power gear 2 75 drives the gear ring 1 36 meshing with it to rotate, and the gear ring 1 36 drives the connecting shaft 35 fixedly connected to it to rotate, and the connecting shaft 35 drives the slider 34 rotatably connected to one end to rotate, because the slider 34 is slidably connected to the positive spiral groove 32 and the reverse spiral groove 33, and the positive spiral groove 32 and the reverse spiral groove 33 are connected at the ends, so that when the slider 34 rotates, it drives the lifting column 31 to reciprocate and rise and fall along the limiting rod 13 slidably connected to it through the positive spiral groove 32 and the reverse spiral groove 33.

[0046] The lifting column 31 drives the plug column 37 fixedly connected to the lower end to lift and lower back and forth. When descending, the plug column 37 cooperates with the inner cavity piston of the filter tank 11. After the plug column 37 moves downward and passes through the feed port 12, the inner cavity of the filter tank 11 is sealed, and the plug column 37 continues to move downward, exerting a downward thrust on the sodium 5-sulfonisophthalic acid on its lower side, thereby increasing the speed at which the sodium 5-sulfonisophthalic acid passes through the filter disc 41. A sealing cylinder 43 is provided between the lower side of the filter disc 41 and the gear ring 2 51. A vent pipe 81 connected to the outside is provided on the sealing cylinder 43. A sealing ball 82 is placed inside the vent pipe 81. The end of the sealing ball 82 close to the outside is fixedly connected to a compression spring 83, so that the plug column 37 moves downward to push the gas to push the sealing ball 82 to the outside, but the gas from the outside cannot push the sealing ball 82 to the inside of the filter tank 11, forming a one-way valve mechanism so that the internal pressure will not be too large.

[0047] When rising, the plug 37 moves upward, so that the internal pressure of the filter tank 11 and the transparent tank 21 is reduced. A one-way valve mechanism is also provided on the transparent tank 21, and the setting direction of the one-way valve mechanism is opposite to the setting direction of the one-way valve mechanism on the sealing cylinder 43, so that the external gas can pass through the one-way valve mechanism into the transparent tank 21 under the external air pressure, and then form an upward airflow under the action of the plug 37. The airflow passes through the gap of the fan blade 53 and then passes through the filter plate 41, which increases the airflow speed through the filter plate 41. The pitch of the reverse spiral groove 33 is greater than the pitch of the forward spiral groove 32, so that when the speed of the motor 72 is constant, the rising speed of the lifting column 31 and the plug 37 is greater than the descending speed, which further increases the airflow speed through the filter plate 41, and the impurities in the partially blocked pores in the filter plate 41 can be blown out upward, and the fan blade 53 rotates with the gear ring 2 51, so that the gap of the fan blade 53 can be successively opposite to the filter plate 41 around the filter plate 41 with the rotation, so that all parts of the filter plate 41 can be blown out by the airflow.

[0048] When the power gear 1 73 rotates, the fan blade 53 and the stirring rod 61 are driven to rotate through the gear ring 2 51 meshing therewith. The sodium 5-sulfoisophthalate passing through the filter disc 41 falls into the transparent tank 21 at the bottom, which is convenient for observing the reaction state, and the stirring rod 61 extends into the transparent tank 21 and stirs the sodium 5-sulfoisophthalate when rotating, so that the product obtained by the hot melt decolorization reaction has a higher purity.

[0049] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hot melt decolorizing kettle for sodium 5-sulfoisophthalate, comprising a filter tank (11), a feed port (12) connected to the inside of the filter tank (11), and a limiting rod (13) fixedly connected to the top of the inner side of the filter tank (11), characterized in that: It comprises a reciprocating mechanism, the reciprocating mechanism is arranged inside the filter tank (11) and cooperates with the limiting rod (13); A filtering mechanism, the filtering mechanism being arranged at the inner bottom of the filtering tank (11); A transparent tank (21), the transparent tank (21) being fixedly connected to and in communication with the bottom of the filter tank (11), and a stirring rod (61) being arranged inside the transparent tank (21); A shielding mechanism, the shielding mechanism being located at the top of the transparent tank (21), and the shielding mechanism cooperates with the stirring rod (61) to drive the stirring rod (61) to rotate, and both upper and lower sides of the shielding mechanism are provided with a one-way valve mechanism; A power mechanism, the power mechanism cooperates with the reciprocating mechanism and the shielding mechanism; The reciprocating mechanism comprises a lifting column (31) slidably connected to the limiting rod (13); a positive spiral groove (32) and a reverse spiral groove (33) having opposite spiral directions and cross-connected with each other are formed on the surface of the lifting column (31); the positive spiral groove (32) and the reverse spiral groove (33) are connected end to end; a plug (37) cooperating with an inner cavity piston of the filter tank (11) is fixedly connected to the lower end of the lifting column (31); and a rotating mechanism is also included, wherein the pitch of the positive spiral groove (32) is shorter than the pitch of the reverse spiral groove (33); The filtering mechanism comprises a filter plate (41) fixedly connected to the inner wall of the filter tank (11); a retaining ring (42) fixedly connected to the inner wall of the bottom of the filter plate (41); and a sealing cylinder (43) disposed on the lower side of the filter plate (41) and the retaining ring (42) and fixedly connected to the filter plate (41); The power mechanism comprises a protective shell (71) fixedly connected to the filter tank (11); a motor (72) fixedly connected to the inner wall of the protective shell (71); an output shaft of the motor (72) fixedly connected to a power gear 1 (73) capable of driving a second gear ring (51) to rotate; a transmission shaft (74) fixedly connected to the surface of the power gear 1 (73); and an upper end of the transmission shaft (74) fixedly connected to a power gear 2 (75) capable of driving a first gear ring (36) to rotate; The one-way valve mechanism comprises a vent pipe (81), a sealing ball (82) slidably connected in the vent pipe (81); and a compression spring (83) having one end fixedly connected to the sealing ball (82) and the other end fixedly connected to the vent pipe (81). The one-way valve mechanism on the upper side of the shielding mechanism passes through the sealing cylinder (43) and the filter tank (11), and the one-way valve mechanism on the lower side of the shielding mechanism passes through the transparent tank (21). The one-way valve mechanisms on the upper and lower sides of the shielding mechanism are arranged in opposite directions.

2. A sodium 5-sulfoisophthalate hot melt decolorizing kettle according to claim 1, characterized in that: The rotating mechanism comprises a toothed ring (36) rotatably connected in the filter tank (11); a slider (34) slidably connected to both the positive spiral groove (32) and the reverse spiral groove (33); and a connecting shaft (35), one end of the connecting shaft (35) being fixedly connected to the toothed ring (36) and the other end being rotatably connected to the slider (34).

3. The hot melt decolorizing kettle of 5-sodium sulfoisophthalate according to claim 1, characterized in that: The shielding mechanism comprises a second gear ring (51) and an annular groove (52) formed on the upper surface of the second gear ring (51), wherein the second gear ring (51) is rotatably engaged with the sealing cylinder (43) via the annular groove (52); and a fan blade (53), wherein the fan blade (53) is fixedly connected to the inner side of the second gear ring (51) and is fixedly connected to the stirring rod (61).

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