Novel activated carbon adsorption type DMT decoloration treatment device

Abstract

The invention discloses a novel activated carbon adsorption type DMT decolorization treatment device which comprises a rack, a material tank and an adsorption decolorization tank are installed at the left end and the right end of the upper portion of the rack respectively, the bottom end of the material tank is connected with a communicating pipeline through a flange, and the other end of the communicating pipeline is connected with a feeding port of the adsorption decolorization tank through a flange; the adsorption decoloring tank comprises an upper cover seat, a middle part and a lower cover seat, an activated carbon bed is mounted in the middle part, a perforated plate is mounted at the upper part in the lower cover seat, a blockage clearing mechanism for clearing the perforated plate is mounted in the lower cover seat, and a collecting mechanism is mounted on the perforated plate. Solid DMT is dissolved into liquid DMT through a communication pipeline, and a steam pipe I and a steam pipe II are arranged between the solid DMT and the adsorption decolorization tank, and the liquid DMT is conveyed into the adsorption decolorization tank through the communication pipeline in a heat preservation manner, so that a required temperature environment is provided for an activated carbon adsorption reaction, and efficient adsorption of pigments in a solution is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of DMT decolorization, in particular to a novel activated carbon adsorption type DMT decolorization treatment device. Background Art

[0002] Dimethyl terephthalate (DMT) is a monomer of polyester, mainly used for synthesizing polyester fibers, resins, films, polyester paints and engineering plastics, etc. It needs to be decolorized during the production process. At present, when decolorizing DMT, the DMT dissolved into liquid is usually added into the activated carbon adsorption tank and allowed to flow naturally through the activated carbon. The porous structure of the activated carbon is used to adsorb and decolorize the pigments in the DMT. A filter plate is usually provided under the activated carbon to filter impurities and activated carbon debris in the liquid DMT. After long-term use, impurities and debris may cause clogging of the filter plate, which makes it impossible for the internal DMT to be discharged normally, resulting in a timeout during the replacement process. To this end, we have designed a new activated carbon adsorption type DMT decolorization treatment device. Summary of the invention

[0003] The present invention proposes a novel activated carbon adsorption type DMT decolorization treatment device, which solves the problem that impurities and debris may cause clogging of the filter plate, thereby making it impossible for the internal DMT to be discharged normally, resulting in a timeout problem during the replacement process.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A novel activated carbon adsorption type DMT decolorization treatment device comprises a frame, wherein a material tank and an adsorption decolorization tank are respectively installed on the left and right ends above the frame, the bottom end of the material tank is connected with a connecting pipe through a flange, the other end of the connecting pipe is connected with the feed port of the adsorption decolorization tank through a flange, a peristaltic pump is installed on the connecting pipe, and a three-way pipe is installed at the bottom discharge port of the adsorption decolorization tank through a flange, a discharge pipe and an emptying valve are installed on the three-way pipe, the discharge pipe is designed in a U structure, and the top height of the discharge pipe is higher than the top of the adsorption decolorization tank; By forming a liquid column higher than the top flange of the adsorption decolorization tank, a natural water seal effect is achieved, which effectively prevents the liquid from flowing back and ensures the continuity and stability of the entire decolorization process. Valves are installed on the connecting pipes and discharge pipes as needed to control the circulation and discharge of internal materials. The adsorption decolorization tank comprises an upper cover seat, a middle part and a lower cover seat, and the three parts are sealed and connected in sequence through flanges. An activated carbon bed is installed in the middle part, and the activated carbon bed comprises a mounting tube fixed in the middle part, and the mounting tube is filled with a honeycomb activated carbon column. The upper end flange of the middle part and the lower end flange of the upper cover seat are both recessed to form a notch, and the top end of the mounting tube is turned outward to form a protruding ring, and the protruding ring is pressed into the notch; A porous plate is installed above the lower cover seat, and a plurality of evenly distributed liquid-permeable holes are arranged on the porous plate. A clearing mechanism for unblocking the porous plate is installed inside the lower cover seat, and a collecting mechanism is installed on the porous plate. The collecting mechanism is connected to the clearing mechanism. The lower end flange of the middle part and the upper end flange of the lower cover seat are both recessed to form a notch, and the porous plate is placed in the notch and pressed between the two flanges.

[0005] Preferably, a heat-insulating sleeve 1 is sleeved on the outer side of the middle part of the adsorption decolorization tank, a heat-insulating sleeve 2 is arranged on the outside of the material tank, a steam pipe 1 is installed on the heat-insulating sleeve 1 through a flange, a steam pipe 2 is installed on the upper part of the heat-insulating sleeve 2 through a flange, and the other ends of the steam pipe 1 and the steam pipe 2 are connected to a steam pipe, and the steam pipe is connected to an external steam generator; Valves are separately provided on steam pipe 1 and steam pipe 2. One of the steam pipes enters into the insulation jacket 2 to heat the material tank to 140°C, dissolving the solid DMT into liquid, and then transporting it to the adsorption decolorization tank through the connecting pipe. The other steam pipe directly enters into the insulation jacket 1 of the adsorption decolorization tank to provide the required temperature environment for the activated carbon adsorption reaction and promote its efficient adsorption of the pigment in the solution. A liquid outlet pipe 1 is installed at a lower end of the insulation sleeve through a flange, and a liquid outlet pipe 2 is installed at a lower end of the insulation sleeve through a flange. The liquid outlet pipe 1 and the liquid outlet pipe 2 are connected to the condenser through a three-way pipe, and the generated condensed water can be discharged through the liquid outlet pipe 1, the liquid outlet pipe 2 and the condenser.

[0006] Preferably, an air intake pipe 1 is installed on the upper part of the adsorption decolorization tank through a flange, and an air intake pipe 2 is installed on the upper part of the material tank through a flange, and the air intake pipe 1 and the air intake pipe 2 are far away from the adsorption decolorization tank and one end of the material tank and converge with each other and are connected to a nitrogen pipeline, and valves are installed on the air intake pipe 1 and the air intake pipe 2 respectively; Nitrogen can enter the material tank and adsorption decolorization tank and pressurize it as needed, so that the DMT liquid inside can flow quickly to prevent the solution from overtime during the replacement process. The liquid can be quickly pressed out to ensure its operating efficiency.

[0007] Preferably, the blockage clearing mechanism comprises an upper ring seat and a lower ring seat fixed inside the lower cover seat by screws, an upper driving ring is rotatably mounted on the lower end of the upper ring seat, a lower driving ring is rotatably mounted on the upper end of the lower ring seat, a fixed arc plate is fixed to the inner ring of the upper driving ring, a lifting member is slidably arranged on the fixed arc plate up and down, a lifting plate is connected to the upper end of the lifting member, a plurality of evenly distributed blockage clearing rods are arranged on the lifting plate, the blockage clearing rods are located below the porous plate, a lifting member is arranged on the inner ring of the lower driving ring, and the lifting member is in sliding contact with the lifting member; The upper driving ring and the lower driving ring are provided with an annular groove with a T-shaped cross section, and the upper ring seat and the lower ring seat are provided with a connecting portion with a T-shaped cross section, which is slidably placed in the annular groove, thereby facilitating the rotational connection between the upper ring seat and the upper driving ring, and the rotational connection between the lower ring seat and the lower driving ring, and the upper driving ring and the lower driving ring are both sealed with the inner wall of the lower cover seat and are designed to rotate; The outer ring of the lower cover seat is provided with a driving motor through a motor frame, and the output shaft of the driving motor is provided with an upper driving wheel and a lower driving wheel in sequence from top to bottom, and the upper driving wheel and the lower driving wheel are provided with a meshing portion, and the outer ring surfaces of the upper driving ring and the lower driving ring are provided with a circle of evenly distributed meshing grooves, and a portion of the outer wall of the lower cover seat is cut off to form an opening, and the upper driving wheel and the upper driving ring pass through the opening to mesh with the meshing groove and the meshing portion, and the lower driving wheel and the lower driving ring pass through the opening to mesh with the meshing groove and the meshing portion; The front half of the upper driving wheel and the rear half of the lower driving wheel are provided with meshing grooves, and the upper driving ring and the lower driving ring rotate 90 degrees every time the upper driving wheel and the lower driving wheel rotate one circle.

[0008] Preferably, the lifting member comprises two groups of guide rods slidably sleeved on the fixed arc plate, the bottom ends of the two groups of guide rods are fixed with lifting arc plates, and the guide rods are sleeved with downward pressing springs, and the upper and lower ends of the downward pressing springs are respectively in contact with the lower surface of the fixed arc plate and the upper surface of the fixed arc plate; The lifting parts are provided in two groups, and the angle between the two groups of lifting parts and the axis of the lower ring seat is 45 degrees. The lifting parts include a fixed guide plate fixed on the inner wall of the lower driving ring, a round hole is provided on the fixed guide plate, a lifting rod is slidably sleeved in the round hole, a lifting ring is provided on the outer ring surface of the lifting rod, a reset spring is sleeved on the lifting rod, the upper and lower ends of the reset spring are respectively in contact with the lower surface of the fixed guide plate and the upper surface of the lifting ring, and the upper and lower ends of the lifting rod are both spherical in structure design; The inner wall of the lower ring seat is fixed with a fixing ring, and the upper surface of the fixing ring is provided with eight groups of receiving grooves distributed in an annular shape. The inner wall of the receiving groove is chamfered to form a lifting slope. In the initial state, Fig. 9As shown, the lifting plate is below the porous plate, the clearing rod is not plugged into the water-permeable hole of the porous plate, the lifting rods in the two sets of lifting parts are respectively placed in two receiving grooves, and the top ends of the lifting rods are 1-2 mm below the lower surface of the lifting arc plate, and the two will not touch each other. At this time, the upper driving wheel has just been disengaged from the upper driving ring, and the lower driving wheel is just about to be engaged with the lower driving ring; When rotating, the lifting part will rotate with the lower driving ring, and the lifting rod will slide along the lifting inclined surface to make the lifting part move upward, thereby making the lifting plate move upward, until the lifting rod moves on the upper surface of the fixed ring, the clearing rod is inserted into the liquid permeable hole of the porous plate, and the top of the clearing rod is flush with the upper surface of the porous plate, until the lifting rod moves to the next adjacent receiving groove, at which time the lifting rod moves downward under the action of the return spring and will not contact the lifting part, the lifting plate moves down and rotates 90 degrees, and this alternating reciprocating cycle is repeated to clean the entire lower surface of the porous plate.

[0009] Preferably, the size of the lifting plate is 1 / 4 of the size of the porous plate, and the positions and number of the multiple clearing rods on the lifting plate correspond to the positions and number of the liquid-permeable holes on the porous plate. The liquid-permeable holes on the porous plate are divided into four equal parts, and the number and position of each equal part correspond to the positions and number of the multiple clearing rods on the lifting plate, so that when the lifting plate is rotated 90 degrees, the clearing rods above it can still be inserted into the liquid-permeable holes; The arc length of the lifting arc plate matches the arc length of the lifting plate. When the lifting member rotates 90 degrees, the lifting plate can always be lifted upward and kept motionless, which is convenient for moving and cleaning the collection mechanism.

[0010] Preferably, the collecting mechanism comprises a tripod fixed to the inner wall of the lower driving ring, a fixed shaft is fixed on the tripod, the fixed shaft moves through the lifting plate and the porous plate in sequence and is located above the porous plate, a collecting seat is fixed to the upper end of the fixed shaft, a collecting chamber is provided on the collecting seat facing the side of the clearing rod, and a shielding plate is provided on the inner side of the collecting seat for sliding up and down, and the bottom ends of the collecting seat and the shielding plate are in sliding contact with the upper surface of the porous plate; The fixed shaft and the lifting plate slide up and down and rotate, the fixed shaft is rotationally connected with the porous plate, and the fixed shaft is on the axis of the porous plate, the lower driving ring and the upper driving ring, and the lifting plate can also rotate around the fixed shaft.

[0011] Preferably, an outer ring and an inner ring are arranged above the porous plate, and the axes of the outer ring and the inner ring are both collinear with the axis of the porous plate, and the outer ring and the inner ring are both arranged with four groups of sinking grooves in a circumferential array, and the edges at both ends of the sinking grooves are chamfered to form a rising surface; The collecting seat and the shielding plate are penetrated by gap one and gap two, wherein gap one and gap two on the shielding plate are provided with a lifting inclined plate on the side facing the lifting plate, and the bottom end of the lifting inclined plate is designed as a slope, and when the collecting seat and the shielding plate rotate with the lower driving ring, the lifting inclined plate will contact the rising surface and make the shielding plate move upward until the lifting inclined plate contacts the upper surface of the outer ring and the inner ring, at which time the shielding plate is fully opened until it moves to the next sinking groove, and it will close, and the height of gap one and gap two matches the height of the outer ring and the inner ring, and will not interfere with their normal movement.

[0012] Preferably, two groups of openings are provided above and below the collecting seat, and a movable column is inserted into the opening for upward and downward sliding. The upper end of the movable column is connected to the baffle plate, and a counterweight block is provided at the lower end of the movable column, which can guide the upward and downward movement of the baffle plate, and the design of the counterweight block facilitates the downward movement of the baffle plate.

[0013] Preferably, in the initial state, the collecting seat is in the sinking trough, and at this time, the surface of one end of the collecting seat facing the clearing rod is directly above the surface of the side of the lifting plate facing the collecting seat. When the collecting seat rotates, it can always scrape and clean the position of the porous plate after the clearing rod is lifted, thereby preventing some impurities and activated carbon debris from falling into the liquid permeable hole again.

[0014] Beneficial effects of the present invention: 1. By setting up a material tank and an adsorption decolorization tank, and connecting the two with a pipe, a steam pipe 1 and a steam pipe 2 are set. One of the steam enters the insulation jacket 2 to heat the material tank to 140°C, dissolving the solid DMT into liquid, and transporting it to the adsorption decolorization tank through the connecting pipe. The other steam directly enters the insulation jacket 1 of the adsorption decolorization tank to provide the required temperature environment for the activated carbon adsorption reaction, promote its efficient adsorption of the pigment in the solution, and cooperate with the discharge pipe with a U-structure design to form a liquid column higher than the top flange of the adsorption decolorization tank to achieve a natural water seal effect, effectively prevent the liquid from flowing back, and ensure the continuity and stability of the entire decolorization process; 2. By setting a porous plate in the adsorption decolorization tank, impurities and activated carbon are effectively intercepted to prevent them from being discharged with the solution. The clearing mechanism is set up in coordination. The lifting plate and clearing rod in the clearing mechanism are 1 / 4 of the liquid permeable holes of the porous plate. The liquid permeable holes of the porous plate can be cleared intermittently to prevent blockage caused by impurities and activated carbon debris. During the cleaning, other areas can flow normally, which improves the discharge effect. 3. By arranging a collecting mechanism above the porous plate, and the collecting mechanism moves synchronously with the lower driving ring in the clearing mechanism, the impurities are cleared again after the clearing rod is lifted to the top of the porous plate, so that these impurities and activated carbon debris are concentrated together and will not spread everywhere, which is not easy to cause blockage of the porous plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of a novel activated carbon adsorption type DMT decolorization treatment device proposed by the present invention; Figure 2 This is a schematic diagram of the pipeline layout of a novel activated carbon adsorption type DMT decolorization treatment device proposed in the present invention; Figure 3 for Figure 1 Schematic diagram of the structure of the adsorption decolorization tank; Figure 4 for Figure 1 Schematic diagram of the structure of the medium material tank; Figure 5 for Figure 3 Cross-sectional view of the adsorption decolorization tank; Figure 6 for Figure 4 Schematic diagram of the middle and lower cover seat, the porous plate and the collecting mechanism; Figure 7 for Figure 6 Structural schematic diagram of the medium porous plate, the collecting mechanism and the clearing mechanism; Figure 8 for Figure 7 Structural diagram of the collecting mechanism and the clearing mechanism; Fig. 9 for Figure 8 Structural diagram of lifting parts and jacking parts in the collecting mechanism and the clearing mechanism; Fig.10 for Fig. 9 Structural diagram of the middle lifting member and the lifting plate; Fig.11 for Figure 7 Schematic diagram of the structure of the collecting mechanism and the porous plate; Fig.12 for Fig.11 The enlarged schematic diagram at A in the middle; Fig.13 for Fig.12 Front view diagram of .

[0016] Numbers in the figure: 1, frame; 2, adsorption decolorization tank; 21, upper cover seat; 22, middle part; 23, insulation sleeve 1; 24, lower cover seat; 3, material tank; 31, insulation sleeve 2; 4, discharge pipe; 5, connecting pipe; 6, clearing mechanism; 61, driving motor; 62, upper driving wheel; 621, meshing part; 63, lower driving wheel; 64, lower driving ring; 641, lower ring seat; 642, meshing groove; 65, upper driving ring; 651, upper ring seat; 66, lifting plate; 661, clearing rod; 67, fixed arc plate; 68, lifting member; 681, guide rod; 682, downward pressure spring; 683, Lifting arc plate; 69, lifting member; 691, fixed ring; 692, storage groove; 693, lifting slope; 694, fixed guide plate; 695, return spring; 696, lifting rod; 697, lifting ring; 7, activated carbon bed; 71, mounting tube; 72, honeycomb activated carbon column; 8, porous plate; 81, liquid permeable hole; 9, collecting mechanism; 91, fixed shaft; 92, collecting seat; 921, notch one; 922, notch two; 923, collecting chamber; 93, shielding plate; 931, lifting inclined plate; 932, moving column; 94, outer ring; 941, sinking trough; 942, rising surface; 95, inner ring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Example 1 Reference Figure 1-Figure 10 A novel activated carbon adsorption type DMT decolorization treatment device comprises a frame 1, a material tank 3 and an adsorption decolorization tank 2 are respectively installed on the left and right ends above the frame 1, a connecting pipe 5 is connected to the bottom end of the material tank 3 through a flange, the other end of the connecting pipe 5 is connected to the feed port of the adsorption decolorization tank 2 through a flange, a peristaltic pump is installed on the connecting pipe 5, and a three-way pipe is installed at the bottom discharge port of the adsorption decolorization tank 2 through a flange, a discharge pipe 4 and an emptying valve are installed on the three-way pipe, the discharge pipe 4 is designed in a U structure, and the top height of the discharge pipe 4 is higher than the top of the adsorption decolorization tank 2; By forming a liquid column higher than the top flange of the adsorption decolorization tank 2, a natural water seal effect is achieved, which effectively prevents the liquid from flowing back, ensuring the continuity and stability of the entire decolorization process, and valves are installed on the connecting pipe 5 and the discharge pipe 4 as needed to control the circulation and discharge of the internal materials; The adsorption decolorization tank 2 includes an upper cover seat 21, a middle part 22 and a lower cover seat 24, and the three parts are sealed and connected in sequence through flanges. An activated carbon bed 7 is installed in the middle part 22, and the activated carbon bed 7 includes a mounting tube 71 fixed in the middle part 22, and the mounting tube 71 is filled with a honeycomb activated carbon column 72; The upper flange of the middle part 22 and the lower flange of the upper cover seat 21 are both recessed to form a notch, and the top of the mounting tube 71 is turned outward to form a protruding ring, which is pressed into the notch; When replacing the activated carbon bed 7, the middle part 22 is disassembled, the used activated carbon bed 7 can be taken out, and a new activated carbon bed 7 is installed. The protruding ring of the installation tube 71 of the activated carbon bed 7 is placed in the notch, and then the middle part 22 is connected to the upper cover seat 21 through a flange. At this time, the installation tube 71 is pressed and fixed between the two sets of flanges to fix it; A porous plate 8 is installed above the lower cover seat 24, and a plurality of evenly distributed liquid permeable holes 81 are arranged on the porous plate 8. A clearing mechanism 6 for clearing the porous plate 8 is installed inside the lower cover seat 24, and a collecting mechanism 9 is installed on the porous plate 8. The collecting mechanism 9 is connected to the clearing mechanism 6. The lower end flange of the middle part 22 and the upper end flange of the lower cover seat 24 are both recessed to form a notch, and the porous plate 8 is placed in the notch and pressed between the two flanges.

[0019] The middle part 22 of the adsorption decolorization tank 2 is sleeved with a heat insulation sleeve 1 23 on the outside, and a heat insulation sleeve 2 31 is arranged on the outside of the material tank 3. The heat insulation sleeve 1 23 is installed with a steam pipe 1 through a flange, and a steam pipe 2 is installed above the heat insulation sleeve 2 31 through a flange. The other ends of the steam pipe 1 and the steam pipe 2 are connected to a steam pipe, and the steam pipe is connected to an external steam generator. Valves are separately provided on the steam pipe 1 and the steam pipe 2. One of the steam flows into the insulation jacket 2 31 to heat the material tank 3 to 140°C, dissolving the solid DMT into liquid, and then heat-insulating and transporting it to the adsorption decolorization tank 2 through the connecting pipe 5. The other steam flows directly into the insulation jacket 1 23 of the adsorption decolorization tank 2 to provide the required temperature environment for the activated carbon adsorption reaction and promote its efficient adsorption of the pigment in the solution. A liquid outlet pipe 1 is installed at the lower end of the insulation sleeve 1 23 through a flange, and a liquid outlet pipe 2 is installed at the lower end of the insulation sleeve 2 31 through a flange. The liquid outlet pipe 1 and the liquid outlet pipe 2 are connected to the condenser through a three-way pipe, and the generated condensed water can be discharged through the liquid outlet pipe 1, the liquid outlet pipe 2 and the condenser.

[0020] An air intake pipe 1 is installed on the upper part of the adsorption decolorization tank 2 through a flange, and an air intake pipe 2 is installed on the upper part of the material tank 3 through a flange. The air intake pipe 1 and the air intake pipe 2 are converged at one end away from the adsorption decolorization tank 2 and the material tank 3 and are connected to a nitrogen pipeline, and valves are installed on the air intake pipe 1 and the air intake pipe 2 respectively; Nitrogen can enter the material tank 3 and the adsorption decolorization tank 2 and pressurize them as needed, so that the internal DMT liquid flows quickly to prevent the solution from overtime during the replacement process, and can quickly press out the liquid to ensure its operating efficiency.

[0021] The clearing mechanism 6 includes an upper ring seat 651 and a lower ring seat 641 fixed by screws inside the lower cover seat 24. An upper driving ring 65 is rotatably mounted on the lower end of the upper ring seat 651, and a lower driving ring 64 is rotatably mounted on the upper end of the lower ring seat 641. A fixed arc plate 67 is fixed to the inner ring of the upper driving ring 65. A lifting member 68 is provided on the fixed arc plate 67 to slide up and down. A lifting plate 66 is connected to the upper end of the lifting member 68. A plurality of evenly distributed clearing rods 661 are provided on the lifting plate 66. The clearing rods 661 are located below the porous plate 8. A lifting member 69 is provided on the inner ring of the lower driving ring 64. The lifting member 69 is in sliding contact with the lifting member 68. The upper driving ring 65 and the lower driving ring 64 are provided with annular grooves with a T-shaped cross section, and the upper ring seat 651 and the lower ring seat 641 are provided with connecting parts with a T-shaped cross section, which are slidably placed in the annular grooves, thereby facilitating the rotational connection between the upper ring seat 651 and the upper driving ring 65, and the rotational connection between the lower ring seat 641 and the lower driving ring 64, and the upper driving ring 65 and the lower driving ring 64 are both sealed and rotated with the inner wall of the lower cover seat 24, and the contact end faces of the upper driving ring 65 and the lower driving ring 64 are sealed, and a cover shell is provided above the motor frame, and the upper driving wheel 62 and the lower driving wheel 63 are both placed in the cover shell, and the cover shell is sealed and fixed to the outer surface of the lower cover seat 24, ensuring that the liquid inside the adsorption decolorization tank 2 will not flow to the outside; The outer ring of the lower cover seat 24 is provided with a driving motor 61 through a motor frame, and the output shaft of the driving motor 61 is provided with an upper driving wheel 62 and a lower driving wheel 63 in sequence from top to bottom, and the upper driving wheel 62 and the lower driving wheel 63 are provided with a meshing portion 621, and the outer ring surfaces of the upper driving ring 65 and the lower driving ring 64 are provided with a circle of evenly distributed meshing grooves 642, and a portion of the outer wall of the lower cover seat 24 is cut off to form an opening, and the upper driving wheel 62 and the upper driving ring 65 pass through the opening and mesh with the meshing groove 642 and the meshing portion 621, and the lower driving wheel 63 and the lower driving ring 64 pass through the opening and mesh with the meshing groove 642 and the meshing portion 621; The front half of the upper driving wheel 62 and the rear half of the lower driving wheel 63 are provided with engagement grooves 642 , and the upper driving ring 65 and the lower driving ring 64 rotate 90 degrees every time the upper driving wheel 62 and the lower driving wheel 63 rotate one circle.

[0022] The lifting member 68 includes two sets of guide rods 681 which are slidably sleeved on the fixed arc plate 67. The bottom ends of the two sets of guide rods 681 are fixed with a lifting arc plate 683. A downward pressing spring 682 is sleeved on the guide rods 681. The upper and lower ends of the downward pressing spring 682 are respectively in contact with the lower surface of the fixed arc plate 67 and the upper surface of the fixed arc plate 67. There are two groups of lifting members 69, and the angle between the two groups of lifting members 69 and the axis of the lower ring seat 641 is 45 degrees, that is, the arc length between the two groups of lifting members 69 is 1 / 8 of the entire lower ring seat 641. The lifting members 69 include a fixed guide plate 694 fixed to the inner wall of the lower driving ring 64, and a circular hole is provided on the fixed guide plate 694. A lifting rod 696 is slidably sleeved in the circular hole. A lifting ring 697 is provided on the outer ring surface of the lifting rod 696. A return spring 695 is sleeved on the lifting rod 696. The upper and lower ends of the return spring 695 are respectively in contact with the lower surface of the fixed guide plate 694 and the upper surface of the lifting ring 697. The upper and lower ends of the lifting rod 696 are both spherical in structure design; A fixing ring 691 is fixed to the inner wall of the lower ring seat 641. Eight groups of receiving grooves 692 distributed in an annular shape are opened on the upper surface of the fixing ring 691. The inner wall of the receiving groove 692 is chamfered to form a lifting slope 693. In the initial state, if Fig. 9 As shown, the lifting plate 66 is located below the porous plate 8, and the clearing rod 661 is not plugged into the liquid permeable hole 81 of the porous plate 8. The lifting rods 696 in the two sets of lifting members 69 are respectively placed in the two receiving grooves 692, and the top ends of the lifting rods 696 are located 1-2 mm below the lower surface of the lifting arc plate 683, and the two do not contact each other. At this time, the upper driving wheel 62 has just been disengaged from the upper driving ring 65, and the lower driving wheel 63 is just about to be engaged with the lower driving ring 64. When rotating, the lifting member 69 will rotate with the lower driving ring 64, and the lifting rod 696 will slide along the lifting slope 693 to move the lifting member 68 upward, thereby moving the lifting plate 66 upward, until the lifting rod 696 moves on the upper surface of the fixing ring 691, the clearing rod 661 is inserted into the liquid permeable hole 81 of the porous plate 8, and the top of the clearing rod 661 is flush with the upper surface of the porous plate 8, until the lifting rod 696 moves to the next adjacent receiving groove 692, at which time the lifting rod 696 moves downward under the action of the reset spring 695 and does not contact the lifting member 68, the lifting plate 66 moves down and rotates 90 degrees, and this alternating reciprocating motion is repeated to clean the entire lower surface of the porous plate 8.

[0023] The size of the lifting plate 66 is 1 / 4 of the size of the porous plate 8, and the positions and number of the multiple clearing rods 661 on the lifting plate 66 correspond to the positions and number of the liquid-permeable holes 81 on the porous plate 8. The liquid-permeable holes 81 on the porous plate 8 are divided into four equal parts, and the number and position of each equal part correspond to the positions and number of the multiple clearing rods 661 on the lifting plate 66. This allows the clearing rods 661 on the upper side of the lifting plate 66 to still be inserted into the liquid-permeable holes 81 when the lifting plate 66 is rotated 90 degrees. The arc length of the lifting arc plate 683 matches the arc length of the lifting plate 66 . The lifting member 69 can always keep the lifting plate 66 lifted upward and motionless when rotating 90 degrees, so as to facilitate the movement and cleaning of the collecting mechanism 9 .

[0024] Example 2 Reference Figure 5-Figure 13 The collecting mechanism 9 includes a tripod fixed to the inner wall of the lower driving ring 64, a fixed shaft 91 is fixed on the tripod, the upper end of the fixed shaft 91 moves through the lifting plate 66 and the porous plate 8 in sequence and is located above the porous plate 8, a collecting seat 92 is fixed to the upper end of the fixed shaft 91, a collecting chamber 923 is provided on the collecting seat 92 facing the clearing rod 661, and a shielding plate 93 is provided on the inner side of the collecting seat 92 for sliding up and down, and the bottom ends of the collecting seat 92 and the shielding plate 93 are in sliding contact with the upper surface of the porous plate 8; The fixed shaft 91 and the lifting plate 66 slide up and down and rotate. The fixed shaft 91 is rotationally connected to the porous plate 8, and the fixed shaft 91 is on the axis of the porous plate 8, the lower drive ring 64 and the upper drive ring 65. The lifting plate 66 can also rotate around the fixed shaft 91.

[0025] An outer ring 94 and an inner ring 95 are arranged above the porous plate 8, and the axes of the outer ring 94 and the inner ring 95 are both in line with the axis of the porous plate 8. The outer ring 94 and the inner ring 95 are both arranged with four groups of sinking grooves 941 in a circumferential array, and the edges of both ends of the sinking grooves 941 are chamfered to form a rising surface 942; The collecting seat 92 and the shielding plate 93 are both provided with a notch 1 921 and a notch 2 922, wherein the notch 1 921 and the notch 2 922 on the shielding plate 93 are provided with a lifting inclined plate 931 on the side facing the lifting plate 66, and the bottom end of the lifting inclined plate 931 is designed to be inclined; When the collecting seat 92 and the baffle plate 93 rotate with the lower driving ring 64, the lifting inclined plate 931 will contact the rising surface 942 and make the baffle plate 93 move upward until the lifting inclined plate 931 contacts the upper surface of the outer ring 94 and the inner ring 95. At this time, the baffle plate 93 is fully opened until it moves to the next sinking groove 941, and it will close. The height of the notch 1 921 and the notch 2 922 match the height of the outer ring 94 and the inner ring 95, and will not interfere with their normal movement.

[0026] Two groups of openings are provided above and below the collecting seat 92, and a movable column 932 is inserted into the opening for upward and downward sliding. The upper end of the movable column 932 is connected to the baffle plate 93, and a counterweight block is provided at the lower end of the movable column 932, which can guide the upward and downward movement of the baffle plate 93, and the design of the counterweight block facilitates the downward movement of the baffle plate 93.

[0027] In the initial state, the collecting seat 92 is in the sinking groove 941, and at this time, the collecting surface at one end facing the clearing rod 661 is directly above the surface of the side of the lifting plate 66 facing the collecting seat 92. When the collecting seat 92 rotates, it can always scrape and clean the position of the porous plate 8 after the clearing rod 661 is lifted, and can prevent some impurities and activated carbon debris from falling into the liquid permeable hole 81 again.

[0028] Working principle: In actual use, the material is added into the material tank 3, and then one of the steam is passed into the insulation jacket 2 31 to heat the solid DMT in the material tank 3 to 140°C, so that the solid DMT is dissolved into liquid. The other steam is directly passed into the insulation jacket 1 23 of the adsorption and decolorization tank 2 to provide the required temperature environment for the activated carbon adsorption reaction, and promote its efficient adsorption of the pigment in the solution; The DMT dissolved in liquid will be transported to the adsorption decolorization tank 2 through the connecting pipe 5 for decolorization under the action of the peristaltic pump. The liquid DMT flows through the activated carbon bed 7. Since the activated carbon is a porous material with a huge specific surface area and rich microporous structure, these characteristics enable it to adsorb and remove the pigment molecules in the solution, thereby decolorizing the outflowing DMT. The decolorized DMT will flow out through the discharge pipe 4. In the process of decolorization, activated carbon debris or some impurities will be generated. The porous plate 8 arranged in the adsorption decolorization tank 2 can effectively intercept the impurities and activated carbon to prevent them from being discharged with the solution. When the liquid permeable hole 81 of the porous plate 8 is blocked, the discharge speed of the liquid is affected and slowed down. Then, the power supply of the driving motor 61 is turned on, and the driving motor 61 will drive the upper driving wheel 62 and the lower driving wheel 63 to rotate. The clearing mechanism 6 and the collecting mechanism 9 in the initial state correspond to each other, as shown in FIG. Figure 7 , Fig. 9 As shown (the output shaft of the driving motor 61 rotates a full circle each time, thereby ensuring that the clearing mechanism 6 is located below the porous plate 8 and the collecting mechanism 9 is located in the sinking tank 941 each time); The rotation of the driving motor 61 will first make the lower driving wheel 63 mesh with the lower driving ring 64, and the lower driving ring 64 will rotate 90 degrees at this time, while the upper driving wheel 62 will not contact the upper driving ring 65. During the rotation of the lower driving ring 64, the lifting member 69 will rotate with the lower driving ring 64, and when the lifting rod 696 slides along the lifting inclined surface 693, the lifting rod 696 will move upward and protrude. At this time, the lifting rod 696 can contact the lifting arc plate 683, and the lifting rod 696 will push the lifting arc plate 683 to move upward; When the lifting rod 696 is on the upper surface of the fixing ring 691, the clearing rod 661 is inserted into the liquid permeable hole 81 of the porous plate 8, and the top of the clearing rod 661 is flush with the upper surface of the porous plate 8, until the lifting rod 696 moves to the next adjacent receiving groove 692, the lifting rod 696 moves downward under the action of the return spring and does not contact the lifting member 68, the lifting plate 66 moves downward and rotates 90 degrees, and the lifting plate 66 is alternately reciprocated in this way, so as to clean the lower surface of the entire porous plate 8; Since the fixed shaft 91 is fixed to the lower driving ring 64, when the lower driving ring 64 rotates, the fixed shaft 91 and the collecting seat 92 and the shielding plate 93 will rotate accordingly. When the collecting seat 92 and the shielding plate 93 rotate with the lower driving ring 64, the lifting inclined plate 931 below the shielding plate 93 will contact the rising surface 942 and make the shielding plate 93 move upward until the lifting inclined plate 931 contacts the upper surfaces of the outer ring 94 and the inner ring 95. At this time, the shielding plate 93 is fully opened. At this time, the inner wall of the collecting chamber 923 of the collecting seat 92 directly contacts the impurities and activated carbon debris on the porous plate 8 and concentrates them in the collecting chamber 923. When it moves to the next sinking trough 941 position, the baffle plate 93 will move downward under the action of the counterweight block and the movable column 932, and it will close. After the lifting plate 66 rotates 90 degrees and rises again, it will clean and collect again. This cycle is repeated until the power of the driving motor 61 is disconnected. The collecting mechanism 9 is in the sinking trough 941, which can concentrate impurities and activated carbon debris to prevent them from spreading everywhere and causing blockage of the porous plate 8.

[0029] By setting a material tank 3 and an adsorption decolorization tank 2, and passing a connecting pipe 5 between the two, a steam pipe 1 and a steam pipe 2 are set, one of which enters the insulation sleeve 2 31 to heat the material tank 3 to 140° C., so that the solid DMT is dissolved into a liquid state, and is transported to the adsorption decolorization tank 2 through the connecting pipe 5 for heat preservation, and the other steam is directly passed into the insulation sleeve 1 23 of the adsorption decolorization tank 2 to provide the required temperature environment for the activated carbon adsorption reaction, promote its efficient adsorption of the pigment in the solution, and cooperate with the discharge pipe 4 with a U-structure design to form a liquid column higher than the top flange of the adsorption decolorization tank 2 to achieve a natural water seal effect, effectively prevent the liquid from flowing back, and ensure the continuity and stability of the entire decolorization process; By setting a porous plate 8 in the adsorption decolorization tank 2, impurities and activated carbon are effectively intercepted to prevent them from being discharged with the solution. The clearing mechanism 6 is provided in coordination. The lifting plate 66 and the clearing rod 661 in the clearing mechanism 6 are 1 / 4 of the liquid permeable hole 81 of the porous plate 8. The liquid permeable hole 81 of the porous plate 8 can be cleared intermittently to prevent blockage caused by impurities and activated carbon debris. Other areas can flow normally during cleaning, thereby improving the discharge effect. By arranging a collecting mechanism 9 above the porous plate 8, and having the collecting mechanism 9 move synchronously with the lower driving ring 64 in the clearing mechanism 6, the clearing rod 661 is lifted to place the impurities above the porous plate 8 and then cleaned again, so that these impurities and activated carbon debris are concentrated together and will not spread everywhere, making it difficult for the porous plate 8 to be blocked.

[0030] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel activated carbon adsorption type DMT decolorization treatment device, characterized in that: The machine comprises a frame (1), wherein a material tank (3) and an adsorption decolorization tank (2) are respectively installed at the left and right ends above the frame (1), the bottom end of the material tank (3) is connected to a connecting pipe (5) via a flange, the other end of the connecting pipe (5) is connected to the feed port of the adsorption decolorization tank (2) via a flange, a peristaltic pump is installed on the connecting pipe (5), and a three-way pipe is installed at the discharge port at the bottom end of the adsorption decolorization tank (2) via a flange, a discharge pipe (4) and an emptying valve are installed on the three-way pipe, the discharge pipe (4) is designed in a U-structure, and the top end of the discharge pipe (4) is higher than the top end of the adsorption decolorization tank (2); The adsorption decolorization tank (2) comprises an upper cover seat (21), a middle portion (22) and a lower cover seat (24), and the three portions are sealed and connected in sequence via flanges. An activated carbon bed (7) is installed in the middle portion (22), and the activated carbon bed (7) comprises a mounting tube (71) fixed in the middle portion (22), and the mounting tube (71) is filled with a honeycomb activated carbon column (72); A porous plate (8) is installed above the interior of the lower cover seat (24), and a plurality of evenly distributed liquid permeable holes (81) are provided on the porous plate (8). A clearing mechanism (6) for clearing the porous plate (8) is installed inside the lower cover seat (24), and a collecting mechanism (9) is installed on the porous plate (8), and the collecting mechanism (9) is connected to the clearing mechanism (6).

2. A novel activated carbon adsorption type DMT decolorization treatment device according to claim 1, characterized in that: The middle part (22) of the adsorption decolorization tank (2) is sleeved with a first heat insulation sleeve (23) on the outside, and a second heat insulation sleeve (31) is arranged on the outside of the material tank (3). A first steam pipe is installed on the first heat insulation sleeve (23) via a flange, and a second steam pipe is installed above the second heat insulation sleeve (31) via a flange. The other ends of the first steam pipe and the second steam pipe are connected to a steam pipe, and the steam pipe is connected to an external steam generator. A liquid outlet pipe 1 is installed at the lower end of the insulation sleeve 1 (23) through a flange, and a liquid outlet pipe 2 is installed at the lower end of the insulation sleeve 2 (31) through a flange. The liquid outlet pipe 1 and the liquid outlet pipe 2 are connected to the condenser through a three-way pipe.

3. A novel activated carbon adsorption type DMT decolorization treatment device according to claim 1, characterized in that: An air intake pipe 1 is installed on the upper part of the adsorption decolorization tank (2) via a flange, and an air intake pipe 2 is installed on the upper part of the material tank (3) via a flange. The air intake pipe 1 and the air intake pipe 2 converge with each other at one end away from the adsorption decolorization tank (2) and the material tank (3) and are connected to a nitrogen pipeline, and valves are installed on the air intake pipe 1 and the air intake pipe 2, respectively.

4. A novel activated carbon adsorption type DMT decolorization treatment device according to claim 1, characterized in that: The blockage clearing mechanism (6) comprises an upper ring seat (651) and a lower ring seat (641) fixed inside the lower cover seat (24) by screws; an upper driving ring (65) is rotatably mounted on the lower end of the upper ring seat (651); a lower driving ring (64) is rotatably mounted on the upper end of the lower ring seat (641); a fixed arc plate (67) is fixed to the inner ring of the upper driving ring (65); a lifting member (68) is slidably arranged on the fixed arc plate (67) up and down; a lifting plate (66) is connected to the upper end of the lifting member (68); a plurality of evenly distributed blockage clearing rods (661) are arranged on the lifting plate (66); the blockage clearing rods (661) are located below the porous plate (8); a lifting member (69) is arranged on the inner ring of the lower driving ring (64); the lifting member (69) is in sliding contact with the lifting member (68); The outer ring of the lower cover seat (24) is provided with a driving motor (61) via a motor frame, and the output shaft of the driving motor (61) is provided with an upper driving wheel (62) and a lower driving wheel (63) in sequence from top to bottom, and the upper driving wheel (62) and the lower driving wheel (63) are both provided with a meshing portion (621), and the outer ring surfaces of the upper driving ring (65) and the lower driving ring (64) are both provided with a circle of evenly distributed meshing grooves (642), and a portion of the outer wall of the lower cover seat (24) is cut away to form an opening, and the upper driving wheel (62) and the upper driving ring (65) pass through the opening and mesh with the meshing groove (642) and the meshing portion (621), and the lower driving wheel (63) and the lower driving ring (64) pass through the opening and mesh with the meshing groove (642) and the meshing portion (621).

5. A novel activated carbon adsorption type DMT decolorization treatment device according to claim 4, characterized in that: The lifting member (68) comprises two groups of guide rods (681) which are slidably sleeved on the fixed arc plate (67) up and down, the bottom ends of the two groups of guide rods (681) are fixed with a lifting arc plate (683), and a downward pressure spring (682) is sleeved on the guide rods (681), and the upper and lower ends of the downward pressure spring (682) are respectively in contact with the lower surface of the fixed arc plate (67) and the upper surface of the fixed arc plate (67); The lifting members (69) are provided in two groups, and the angle between the two groups of the lifting members (69) and the axis of the lower ring seat (641) is 45 degrees. The lifting members (69) include a fixed guide plate (694) fixed to the inner wall of the lower driving ring (64), the fixed guide plate (694) is provided with a circular hole, a lifting rod (696) is slidably sleeved in the circular hole, the outer ring surface of the lifting rod (696) is provided with a lifting ring (697), and a return spring (695) is sleeved on the lifting rod (696), the upper and lower ends of the return spring (695) are respectively in contact with the lower surface of the fixed guide plate (694) and the upper surface of the lifting ring (697), and the upper and lower ends of the lifting rod (696) are both spherical in structure design; A fixing ring (691) is fixed to the inner wall of the lower ring seat (641), and eight groups of receiving grooves (692) distributed in an annular shape are provided on the upper surface of the fixing ring (691). The inner walls of the receiving grooves (692) are chamfered to form a lifting inclined surface (693).

6. A novel activated carbon adsorption type DMT decolorization treatment device according to claim 5, characterized in that: The size of the lifting plate (66) is 1 / 4 of the size of the porous plate (8), and the positions and number of the plurality of clearing rods (661) on the lifting plate (66) correspond to the positions and number of the liquid-permeable holes (81) on the porous plate (8); The arc length of the lifting arc plate (683) matches the arc length of the lifting plate (66).

7. A novel activated carbon adsorption type DMT decolorization treatment device according to claim 4, characterized in that: The collecting mechanism (9) comprises a tripod fixed to the inner wall of the lower driving ring (64), a fixed shaft (91) being fixed on the tripod, the fixed shaft (91) being movable through the lifting plate (66) and the porous plate (8) in sequence and being located above the porous plate (8), a collecting seat (92) being fixed at the upper end of the fixed shaft (91), a collecting chamber (923) being provided on the collecting seat (92) facing the clearing rod (661), and a shielding plate (93) being provided on the inner side of the collecting seat (92) for sliding up and down, and the bottom ends of the collecting seat (92) and the shielding plate (93) are both in sliding contact with the upper surface of the porous plate (8).

8. A novel activated carbon adsorption type DMT decolorization treatment device according to claim 7, characterized in that: An outer ring (94) and an inner ring (95) are arranged above the porous plate (8), and the axes of the outer ring (94) and the inner ring (95) are both colinear with the axis of the porous plate (8), and the outer ring (94) and the inner ring (95) are both provided with four groups of sinking grooves (941) in a circular array, and the edges of both ends of the sinking grooves (941) are chamfered to form a rising surface (942); The collecting seat (92) and the shielding plate (93) are provided with a first notch (921) and a second notch (922) extending therethrough, wherein a lifting inclined plate (931) is provided on the side of the first notch (921) and the second notch (922) in the shielding plate (93) facing the lifting plate (66), and the bottom end of the lifting inclined plate (931) is designed to be an inclined surface.

9. A novel activated carbon adsorption type DMT decolorization treatment device according to claim 8, characterized in that: Two groups of openings are provided vertically through the top of the collecting seat (92), and a movable column (932) is inserted into the opening for vertical sliding movement. The upper end of the movable column (932) is connected to the shielding plate (93), and a counterweight is provided at the lower end of the movable column (932).

10. A novel activated carbon adsorption type DMT decolorization treatment device according to claim 9, characterized in that: In the initial state, the collecting seat (92) is in the sinking groove (941), and at this time, the surface of one end of the collecting rod (661) facing the clearing rod (661) is directly above the surface of one side of the lifting plate (66) facing the collecting seat (92).

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