Continuous rosin melting and clarifying processing device and method

Abstract

The invention relates to the technical field of turpentine processing, in particular to a turpentine continuous melting and clarifying processing device and method.The turpentine raw material is put into a feeding cylinder, piled in an inclined scattering cylinder, subjected to axial autorotation along with the feeding cylinder, discharged downwards and distributed in all areas in a dissolving tank, and after dissolving is completed, the turpentine raw material is poured into the feeding cylinder to be subjected to continuous melting and clarifying processing. When the telescopic part drives the sieve plate to move upwards until the bottom end of the movable cylinder abuts against the sieve plate, the sieve plate axially rotates along with the feeding cylinder and drives the movable cylinder to axially rotate, so that the material leakage port and the material scattering port are staggered, the movable cylinder rolls solid matters in the circumferential direction of the sieve plate, and the resin liquid is discharged into the clarifying tank along the liquid leakage pipe while slag is discharged from the slag outlet; after grease water in the clarification tank is layered, most of the water layer is discharged, the grease water is put into the feeding cylinder for circular treatment, and the steam injection system and the emptying pipe in the clarification tank are opened for distillation treatment, so that the continuous processing efficiency is further improved.

Description

Technical Field

[0001] This invention relates to the field of rosin processing technology, and in particular to a continuous rosin melting and clarification processing apparatus and method. Background Technology

[0002] Pine resin is initially a colorless, transparent, viscous liquid that flows from the tree trunk. Currently, it is usually obtained through manual collection and then processed into rosin and turpentine, becoming important chemical raw materials. The existing conventional processing flow includes sending the collected pine resin to a dissolving pot via a screw conveyor for preliminary dissolution and filtering out large particles of impurities. The remaining pine resin liquid is then sent to a clarifying pot for clarification, causing the resin and water to separate into layers to further remove fine impurities and most of the water. The purified resin liquid is then sent to a cooking pot for distillation. This can be done using a steam method, where steam generated by a steam boiler or heated inert gas is used as a heat source and passed into the cooking pot to heat the resin liquid, causing the water and turpentine in the liquid to vaporize. The vaporized gas is condensed and separated by a condenser to obtain turpentine. The residue in the pot is liquid rosin, which is sent to a cooling pot for cooling to obtain solidified rosin products in block or flake form.

[0003] However, during processing, the resin liquid needs to be processed through multiple pots one after another, and the coarse and fine residues produced need to be collected and reused. The effective recycled materials obtained from the reuse are then returned to the corresponding pots, making the process complicated. In response, existing technologies, such as the ground-mounted pine resin melting and separation device disclosed in Chinese patent document CN102140312B, further integrate the processing process to achieve continuous processing of dissolution, filtration, and distillation. However, the device lacks a clarification process, which is not conducive to high-quality pine resin processing. The clarified fine residue and water layer are inconvenient to handle. Furthermore, since the slag outlet is located at the bottom of the tank, the resin liquid in the tank must be completely emptied before slag can be discharged. The slag must be processed separately outside the tank before the effective substances are extracted and returned to the tank for reuse, which is inefficient. Therefore, further optimization and improvement are needed. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a continuous rosin melting and clarification processing apparatus and method to solve the problem that the processing efficiency of continuous dissolution, filtration, clarification, distillation, and recycling of slag needs to be further improved in the existing rosin processing.

[0005] To achieve the above objectives, the present invention provides a continuous resin melting and clarification processing apparatus, comprising a melting tank and a clarification tank: A feeding cylinder is rotatably connected to the top center of the dissolving tank. The feeding cylinder has an open top design, and the bottom end of the feeding cylinder extends into the dissolving tank. A sprinkling cylinder is connected to one side of the bottom end. The sprinkling cylinder has a horizontally inclined long cylindrical shape. A sprinkling port is opened at the bottom end of the sprinkling cylinder along its length. A movable cylinder is sleeved on the outside of the sprinkling cylinder. A leakage port is opened at the bottom end of the movable cylinder. One end of the movable cylinder is rotatably connected to the feeding cylinder, and an elastic element is connected between the movable cylinder and the feeding cylinder so that the leakage port rotates to the initial state of being connected to the sprinkling port. The dissolving tank is equipped with a sieve plate. A telescopic part is vertically installed at the center of the feeding cylinder. The movable end of the telescopic part extends downward through the feeding cylinder and is connected to the top of the sieve plate. A slag outlet is provided at the upper side of one side of the dissolving tank. The telescopic part drives the sieve plate to move upward until the bottom of the movable cylinder abuts against the sieve plate. Then, the axial rotation of the feeding cylinder drives the axial rotation of the movable cylinder so that the leakage outlet and the sprinkling outlet are misaligned. The bottom of the dissolving tank is connected to a drain pipe, the bottom of which is connected to one side of the top of the clarifying tank. The top of the clarifying tank is equipped with an evacuation pipe, and the bottom of the clarifying tank is equipped with a drain port. Both the dissolving tank and the clarifying tank are equipped with steam injection systems.

[0006] Preferably, the steam injection system includes a vertical pipe arranged axially along the inside of the dissolving tank and the clarifying tank, and a horizontal pipe connected to the side end of the vertical pipe, with multiple injection holes arranged on the vertical pipe and the horizontal pipe.

[0007] Preferably, the vertical pipe inside the dissolving tank extends upward from the bottom of the dissolving tank, and a hollow pipe is connected to the top of the vertical pipe inside the dissolving tank. An opening for the hollow pipe to pass through is provided at the center of the sieve plate. A horizontal connecting plate is connected to the bottom of the movable end of the telescopic part. One end of the horizontal connecting plate is fixedly connected to the inner wall of the opening. A through groove is vertically provided on one side of the hollow pipe to avoid the horizontal connecting plate.

[0008] Preferably, the inner ring of the perforation is provided with an annular scraper, and the inner ring of the annular scraper abuts against the outer wall of the hollow tube.

[0009] Preferably, a spreading shaft is provided at the lower end of the spreading cylinder along its length, and spreading blades are connected to the spreading shaft. The end of the spreading shaft away from the feeding cylinder extends out of the spreading cylinder and is connected to a transmission gear. An annular platform is provided around the inner wall of the dissolving tank, and an annular gear ring is provided on the annular platform to mesh with the transmission gear. When the feeding cylinder rotates axially, it drives the transmission gear and the spreading shaft to rotate axially.

[0010] Preferably, the telescopic part located inside the feeding cylinder is covered with a protective cover. The bottom end of the protective cover is rotatably connected to the inside of the feeding cylinder. A bevel gear set is connected between the bottom end of the protective cover and the end of the spreading shaft that passes through the feeding cylinder. Feed blades are connected to the outer periphery of the protective cover. When the feeding cylinder rotates axially, the protective cover is rotated axially through the spreading shaft and the bevel gear set in sequence.

[0011] Preferably, the end of the spreading shaft connected to the transmission gear has an elastic telescopic structure, and the outer end of the movable cylinder is provided with a slanted protrusion. When the movable cylinder rotates axially, it drives the slanted protrusion to rotate together. The slanted protrusion of the slanted protrusion pushes the transmission gear outward, so that the transmission gear disengages from the meshing connection with the ring gear.

[0012] Preferably, a scraper is connected to one side of the bottom end of the feeding cylinder. The scraper is located beside the movable cylinder. When the bottom end of the movable cylinder abuts against the screen plate, the bottom end of the scraper abuts against the screen plate.

[0013] The present invention also provides a method for continuous melting and clarification of rosin, comprising the following steps: First, the rosin raw material is fed into the feeding cylinder, flowing continuously downwards into the spreading cylinder and piling up along the inclined spreading cylinder. The axial rotation of the feeding cylinder drives the spreading cylinder to rotate synchronously, ensuring the raw material falls evenly downwards through the spreading and leaking ports, distributing it throughout the dissolving tank. At this point, the sieve plate is located in the center of the dissolving tank, and the steam injection system inside the tank begins operation, heating and dissolving the rosin. The dissolved resin leaks downwards through the sieve holes, and the valve is closed. After dissolution, the telescopic part moves the sieve plate upwards, bringing up any remaining large solid particles in the resin. When the bottom of the movable cylinder touches the sieve plate, the axial rotation of the feeding cylinder drives the movable cylinder to rotate axially, causing the leaking port and the spreading port to align. At this point, the movable cylinder acts as a pressure roller, pressing the solids circumferentially along the sieve plate, squeezing out the resin contained within the solids, which then leaks downwards through the sieve holes into the tank. Inside, the moving cylinder rotates at least one revolution along the sieve plate to allow the solid material after roller pressing to fall inclinedly along the sieve plate and be discharged from the slag outlet. While processing the slag discharge, the switch valve is opened to allow the grease liquid to drain into the clarifying tank along the drain pipe for further clarification. After the liquid and slag discharge are completed, the switch valve is closed and the material is fed back in through the feeding cylinder. At this time, the sieve plate moves down to its original position to carry out the dissolution operation for a new batch. At this time, clarification is also carried out simultaneously in the clarifying tank. When the grease and water in the tank separate into layers, the drain port is opened to drain most of the water layer and put it back into the feeding cylinder for circulation. After draining the water layer, the drain port is closed and the steam injection system and vent pipe in the clarifying tank are opened for distillation. The water and turpentine in the purified grease liquid are heated and vaporized and discharged through the vent pipe for condensation and separation to obtain turpentine oil. The distillation residue in the clarifying tank is liquid rosin, which is discharged from the drain port and further cooled and processed into finished rosin.

[0014] The beneficial effects of this invention are as follows: By feeding the rosin raw material into the feeding cylinder, the raw material continuously flows downward into the spreading cylinder and accumulates along the inclined spreading cylinder. The axial rotation of the feeding cylinder drives the spreading cylinder to rotate synchronously, ensuring that the raw material falls evenly downwards along the spreading and leaking inlets, distributing it throughout the dissolving tank. After dissolution, the telescopic part drives the sieve plate to move upwards, bringing up any remaining large solid particles in the resin solution. When the bottom end of the movable cylinder abuts against the sieve plate, the axial rotation of the feeding cylinder drives the movable cylinder to rotate axially, causing the leaking inlet and the spreading inlet to be misaligned. At this point, the movable cylinder acts as a pressure roller, moving along the sieve plate... The circumferential rollers press the solid material and discharge it from the slag outlet. At the same time, the switch valve is opened to allow the grease liquid to flow into the clarifying tank along the drain pipe for further clarification. Once the grease and water in the clarifying tank have separated into layers, the drain outlet is opened to discharge most of the water layer, which is then fed back into the feeding cylinder for circulation. The steam injection system and vent pipe in the clarifying tank are then opened for distillation. The water and turpentine in the purified grease liquid are heated and vaporized, and discharged through the vent pipe for condensation and separation to obtain turpentine. The distillation residue in the clarifying tank is liquid rosin, which is discharged from the drain outlet for further cooling and processing into finished rosin, thereby further improving the efficiency of continuous processing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the dissolving tank and clarifying tank of the present invention; Figure 2 This is a top view of the sieve plate of the present invention; Figure 3 This is a top view of the cross-sectional structure of the sieve plate of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the material spreading cylinder and the movable cylinder of the present invention; Figure 6 This is a cross-sectional view of the movable cylinder of the present invention during rotation; Figure 7 This is a schematic diagram of the structure of the sieve plate of the present invention when it moves upward; Figure 8 This is a schematic diagram of the internal structure of the dissolving tank with feed blades and scraper in this invention; Figure 9 For the present invention Figure 8Enlarged view of point B in the middle; Figure 10 This is a top view schematic diagram of the scraper and sieve plate of the present invention; Figure 11 This is a schematic diagram of the structure of the scraper bar of the present invention when it abuts against the sieve plate; Figure 12 For the present invention Figure 11 Enlarged view of point C in the middle; Figure 13 This is a schematic diagram of the inclined boss structure when the material leakage port of the present invention is switched to the initial state of being connected with the material dispensing port; Figure 14 This is a schematic diagram of the structure of the inclined boss of the present invention when it rotates with the movable cylinder and pushes against the transmission gear outward.

[0017] The diagram is marked as follows: 1. Dissolving tank; 100. Top frame; 101. Switch valve; 2. Clarifying tank; 3. Feeding cylinder; 4. Spreading cylinder; 41. Spreading port; 42. Spreading shaft; 43. Spreading blade; 44. Transmission gear; 5. Movable cylinder; 51. Leakage port; 52. Inclined boss; 6. Elastic component; 7. Screen plate; 71. Through-hole; 8. Telescopic part; 81. Horizontal connecting plate; 82. Protective cover; 83. Bevel gear set; 84. Feed blade; 9. Slag outlet; 10. Leakage pipe; 11. Drain pipe; 12. Drainage port; 13. Vertical pipe; 14. Horizontal pipe; 15. Hollow pipe; 151. Through groove; 16. Annular platform; 17. Scraper. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a continuous resin melting and clarification processing device includes a melting tank 1 and a clarification tank 2. A feeding cylinder 3 is rotatably connected to the top center of the melting tank 1. The feeding cylinder 3 has an open top design, and its bottom end extends into the melting tank 1. A spreading cylinder 4 is connected to one side of the bottom end. The spreading cylinder 4 is a horizontally inclined elongated cylinder design. A spreading port 41 is opened at the bottom end of the spreading cylinder 4 along its length. A movable cylinder 5 is sleeved on the outside of the spreading cylinder 4. A leakage port 51 is correspondingly opened at the bottom end of the movable cylinder 5. One end of the movable cylinder 5 is rotatably connected to the feeding cylinder 3, and an elastic element 6 is connected between the movable cylinder 5 and the feeding cylinder 3 to allow the leakage port 51 to rotate to an initial state where it is connected to the spreading port 41. The dissolving tank 1 is equipped with a sieve plate 7. A telescopic part 8 is erected at the center of the feeding cylinder 3. The movable end of the telescopic part 8 extends downward through the feeding cylinder 3 and is connected to the top of the sieve plate 7. A slag outlet 9 is provided at the upper side of one side of the dissolving tank 1. The sieve plate 7 is moved upward by the telescopic part 8 until the bottom of the movable cylinder 5 abuts against the sieve plate 7. The axial rotation of the feeding cylinder 3 drives the movable cylinder 5 to rotate axially, so that the leakage outlet 51 and the sprinkling outlet 41 are misaligned. A liquid leakage pipe 10 is connected to the bottom of the dissolving tank 1. The bottom of the liquid leakage pipe 10 is connected to the top side of the clarifying tank 2. A drain pipe 11 is provided at the top of the clarifying tank 2. A liquid outlet 12 is provided at the bottom of the clarifying tank 2. Steam injection systems are provided in both the dissolving tank 1 and the clarifying tank 2.

[0021] This invention is based on existing conventional rosin processing equipment and principles, including a dissolving tank 1 and a clarifying tank 2. A feeding cylinder 3 is rotatably connected to the center of the top of the dissolving tank 1. The feeding cylinder 3 has a vertical cylindrical structure and is coaxial with the dissolving tank 1. More preferably, it has an open-topped frustum-shaped design. The feeding cylinder 3 has an open top and a closed bottom. The bottom of the feeding cylinder 3 extends into the dissolving tank 1, and a spreading cylinder 4 is connected to one side of the bottom. The spreading cylinder 4 is a horizontally inclined elongated cylinder, i.e., set at a certain angle. Figure 1 , Figure 7 As shown, the material spreading cylinder 4 and the feeding cylinder 3 are not horizontally arranged; they are fixedly connected. A spreading port 41 is provided at the bottom end of the spreading cylinder 4 along its length. A movable cylinder 5 is fitted around the outside of the spreading cylinder 4, and a discharge port 51 is correspondingly provided at the bottom end of the movable cylinder 5. One end of the movable cylinder 5 is rotatably connected to the feeding cylinder 3, and an elastic element 6 is connected between the movable cylinder 5 and the feeding cylinder 3. Specifically, the elastic element 6 can be an elastic component such as a torsion spring or an elastic rope. Figure 7 As shown, the elastic element 6 is an elastic pull rope component used to pull the movable cylinder 5 to rotate axially, as... Figure 5 As shown, this is to rotate the material discharge port 51 to the initial state where it is connected to the material dispensing port 41; Optionally, a driving device may be provided at the top of the dissolving tank 1. The driving device may include a top frame 100, which is used to support the feeding cylinder 3 and is rotatably connected to the top of the feeding cylinder 3. An external gear ring may be connected to the outer ring of the top of the feeding cylinder 3. An external gear may be meshed with one side of the external gear ring. The external gear is then driven to rotate by conventional components such as a motor, thereby driving the feeding cylinder 3 to rotate axially. Meanwhile, the dissolving tank 1 is equipped with a sieve plate 7, and a telescopic part 8 is vertically installed at the center of the feeding cylinder 3. The telescopic part 8 can be a conventional component such as a telescopic cylinder or an electric telescopic rod. The movable end of the telescopic part 8 extends downward through the feeding cylinder 3 and is connected to the top of the sieve plate 7. Specifically, for example... Figure 2 , Figure 3 As shown, the sieve plate 7 is designed as a disc when viewed from above. A slag outlet 9 is provided on the upper side of one side of the dissolving tank 1. A conventional switch door can also be installed at the slag outlet 9 for initial closure. The slag outlet 9 is located above the surface of the resin liquid in the dissolving tank 1. A drain pipe 10 is connected to the bottom of the dissolving tank 1. A switch valve 101 for controlling the opening and closing of the pipe can be installed on the drain pipe 10. The bottom of the drain pipe 10 is connected to the top side of the clarifying tank 2. A drain pipe 11 is provided at the top of the clarifying tank 2, and a drain outlet 12 is provided at the bottom of the clarifying tank 2. Both the dissolving tank 1 and the clarifying tank 2 are equipped with steam injection systems. In use, the raw material is first fed into the feeding cylinder 3, or fed into the feeding cylinder 3 via an existing screw conveyor. The raw resin forms small solid blocks. The raw material continuously flows downwards into the spreading cylinder 4 and accumulates along the inclined spreading cylinder 4. The feeding cylinder 3 is driven to rotate axially by a drive device, causing the spreading cylinder 4 to rotate synchronously, so that the raw material is spread along the spreading cylinder 4. Material is evenly discharged downwards through inlet 41 and outlet 51, and the discharged material is distributed in various areas within the dissolving tank 1, achieving an automatic and uniform dispersion effect. At this time, the sieve plate 7 is located in the middle of the dissolving tank 1. Simultaneously, the steam injection system starts working to heat and dissolve the rosin in the dissolving tank 1. The dissolved resin leaks downwards along the sieve holes of the sieve plate 7, leaving large particles of impurities on the sieve plate 7. Part of the injected hot air flows into the feeding cylinder 3, softening or initially liquefying the raw material in the cylinder and promoting the discharge, thus preventing localized material buildup when directly feeding into the dissolving tank 1. At this time, the switch valve 101 is in the closed state. After dissolution, the telescopic part 8 drives the sieve plate 7 upwards, bringing up any remaining large solid particles in the resin until the bottom of the movable cylinder 5 abuts against the sieve plate 7. Then, the axial rotation of the feeding cylinder 3 drives the movable cylinder 5 to rotate axially, pulling the elastic element 6 to extend elastically until the elastic element 6 reaches its full extension. Figure 6 , Figure 7As shown, the material outlet 51 and the material sprinkling outlet 41 are misaligned. At this time, the movable cylinder 5 acts as a pressure roller, rolling and pressing the solid material around the sieve plate 7, squeezing out the grease contained in the solid material, and letting it leak down into the tank through the sieve holes. After the movable cylinder 5 rotates at least one revolution along the sieve plate 7, the switch door is opened so that the rolled solid material falls obliquely along the sieve plate 7 and is discharged from the slag outlet 9. Alternatively, a rake or other tool can be used to reach into the slag outlet 9 and scrape the solid material on the sieve plate 7. While processing the slag, the switch valve 101 can be opened so that the grease is discharged along the leakage pipe 10 into the clarification tank 2 for further clarification. After the liquid and slag discharge are completed, the switch valve 101 is closed, and the material is re-fed by the feeding cylinder 3. The sieve plate 7 is moved down and reset through the telescopic part 8. Figure 1 , Figure 5 As shown, after the movable cylinder 5 separates from the sieve plate 7, the movable cylinder 5 is rotated and reset by the elastic element 6, so that the discharge port 51 is reset to the initial state of being connected to the feeding port 41, and the dissolution operation of the new batch continues. At this time, the clarification process is also carried out simultaneously in the clarification tank 2. When the oil and water in the tank are separated into layers, with the water layer at the bottom and fine impurity particles mixed into the water layer, the drain port 12 is opened to drain most of the water layer, which can be put back into the feeding cylinder 3 for circulation. After the water layer is drained, the drain port 12 is closed, and the steam injection system and the vent pipe 11 in the clarification tank 2 are opened for distillation. The water and turpentine in the purified oil are heated and vaporized and discharged through the vent pipe 11 so that turpentine can be obtained by condensation and separation. The distillation residue in the clarification tank 2 is liquid rosin, which is discharged from the drain port 12 and further cooled and processed into rosin product.

[0022] In this invention, while feeding rosin raw material into feeding cylinder 3, water, xylene or turpentine and other auxiliary materials are also added to help improve dissolution and stratification efficiency. In this invention, the water layer discharged from drain port 12 is used to partially replace the added auxiliary material water. When the roller of the moving cylinder 5 presses the solid material on the screen plate 7, it is beneficial to squeeze out the resin, turpentine and other substances contained therein. The solid material pressed on the screen plate 7 is also vaporized by the steam jet system, which helps to remove the xylene or turpentine and other auxiliary materials. The auxiliary material gas is recovered and reused through the top opening of the feeding cylinder 3. If necessary, the discharged coarse residue can be further vaporized to recover the resin, xylene or turpentine and other substances.

[0023] For industrial-grade rosin processing, clarification only requires standing for a few minutes or tens of minutes to discharge the sludge and water, without having to wait for tens of hours of strict clarification or strict centrifugal filtration. In addition, the bottom of the dissolving tank 1 can be connected to multiple drain pipes 10, which in turn connect to multiple clarification tanks 2. Once the dissolution in the dissolving tank 1 is complete, the drain pipe 10 corresponding to the ready clarification tank 2 can be opened.

[0024] In embodiments of the present invention, optionally, such as Figure 1 , Figure 7 As shown, the steam injection system includes a vertical pipe 13 arranged axially along the inside of the dissolving tank 1 and the clarifying tank 2, and a horizontal pipe 14 connected to the side end of the vertical pipe 13. The vertical pipe 13 and the horizontal pipe 14 are provided with multiple injection holes to inject steam generated by the steam boiler or heated inert gas outward. The horizontal pipe 14 is arranged in a crisscross pattern.

[0025] In embodiments of the present invention, optionally, such as Figure 1 , Figure 7 As shown, the vertical pipe 13 inside the dissolving tank 1 extends upwards along the bottom of the dissolving tank 1, and the vertical pipe 13 inside the clarifying tank 2 extends downwards along the top of the clarifying tank 2, facilitating adjacent gas supply to the two vertical pipes 13. For example... Figure 1 , Figure 3 , Figure 4 As shown, the top of the vertical pipe 13 in the dissolving tank 1 is connected to a hollow pipe 15. A through-hole 71 for the hollow pipe 15 to pass through is opened at the center of the sieve plate 7. The bottom of the movable end of the telescopic part 8 is connected to a horizontal connecting plate 81. One end of the horizontal connecting plate 81 is fixedly connected to the inner wall of the through-hole 71. A through groove 151 for avoiding the horizontal connecting plate 81 is opened vertically on one side of the hollow pipe 15. Thus, the setting of the hollow pipe 15 does not affect the telescopic part 8 from driving the sieve plate 7 and the horizontal connecting plate 81 to move up and down. In addition, a spray hole can also be opened on the hollow pipe 15 for spraying air into the tank. Due to the limitation of the horizontal connecting plate 81, the vertical pipe 13 and the hollow pipe 15 remain stationary, and the sieve plate 7 and the telescopic part 8 will not rotate axially. Thus, the feeding cylinder 3 can rotate axially relative to the telescopic part 8, that is, the telescopic part 8 is rotatably connected to the feeding cylinder 3.

[0026] In embodiments of the present invention, optionally, such as Figure 1 , Figure 3 , Figure 4 As shown, the inner ring of the through-hole 71 may also be provided with an annular scraper. The annular scraper has a notch for avoiding the transverse connecting plate 81. The inner ring of the annular scraper abuts against the outer wall of the hollow tube 15. Specifically, the annular scraper can adopt existing conventional structures such as rubber scrapers, so as to prevent impurities and solids from leaking down along the through-hole 71. On the other hand, as the annular scraper moves up and down with the sieve plate 7, it can scrape the hollow tube 15 and the attached substances at the injection holes on the hollow tube 15.

[0027] In embodiments of the present invention, optionally, such as Figure 1 , Figure 2 , Figure 7As shown, a spreading shaft 42 is inserted through the lower end of the spreading cylinder 4 along its length. Spreading blades 43 are connected to the spreading shaft 42. The spreading blades 43 can be designed in shapes such as blades or auger blades. The material in the spreading cylinder 4 is efficiently conveyed and discharged. The end of the spreading shaft 42 away from the feeding cylinder 3 passes through the spreading cylinder 4 and is connected to a transmission gear 44. An annular platform 16 is arranged around the inner wall of the dissolving tank 1. An annular gear ring is provided on the annular platform 16 and meshes with the transmission gear 44. The toothed end face of the annular gear ring is designed to be inclined to match the transmission gear 44. When the feeding cylinder 3 rotates axially, it drives the transmission gear 44 and the spreading shaft 42 to rotate axially, which in turn drives the spreading blades 43 to rotate to assist in discharging.

[0028] Among them, such as Figure 7 As shown, the annular platform 16 also serves to connect the screen plate 7 and the slag outlet 9, effectively discharging coarse slag. The coarse slag solids are generally large in particle size, making it difficult for them to leak down along the gaps between the screen plate 7 and the annular platform 16, the slag outlet 9, or the inner wall of the dissolving tank 1, thus facilitating their efficient discharge.

[0029] As another embodiment of the present invention, optionally, such as Figure 8 , Figure 9 , Figure 10 As shown, the portion of the telescopic part 8 located inside the feeding cylinder 3 is covered with a protective cover 82, but there is a gap between it and the telescopic part 8, that is, it is not fixedly connected to the telescopic part 8. The bottom end of the protective cover 82 is rotatably connected to the feeding cylinder 3. A bevel gear set 83 is connected between the bottom end of the protective cover 82 and the end of the spreading shaft 42 that passes through the feeding cylinder 3. That is, one end of the spreading shaft 42 can be rotatably connected to the end wall of the spreading cylinder 4 through a bearing, and the other end is connected to the bevel gear set 83. Feeding blades 84 are connected to the outer periphery of the protective cover 82. Thus, when the feeding cylinder 3 rotates axially, the protective cover 82 is axially rotated in sequence through the spreading shaft 42 and the bevel gear set 83, that is, the feeding blades 84 are driven to rotate around the protective cover 82. The feeding blades 84 can adopt existing conventional shapes such as auger blades to further assist in feeding.

[0030] The bevel gear set 83 may also be covered by an outer cover, which is rotatably connected to the bottom of the feeding cylinder 3. One end of the spreading shaft 42 passes through the outer cover and is rotatably connected to the outer cover. The end of the spreading shaft 42 that passes through the outer cover is connected to the bevel gear set 83 for transmission.

[0031] As another embodiment of the present invention, optionally, such as Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14As shown, the end of the spreading shaft 42 connected to the transmission gear 44 is an elastic telescopic structure, similar to existing telescopic sleeve structures, except that the cross-section of the telescopic sleeve is designed in a polygonal shape, meaning it will not rotate relative to itself. The outer end of the movable cylinder 5 is fitted with a slanted protrusion 52. When the material outlet 51 rotates to the initial state where it is connected to the spreading outlet 41, as... Figure 13 As shown, the inclined boss 52 is located beside the transmission gear 44 and does not affect the axial rotation of the transmission gear 44. The outer end face of the inclined boss 52 facing away from the movable cylinder 5 can be designed as an arc-shaped end face, and its height gradually increases along the direction away from the transmission gear 44. Therefore, when the movable cylinder 5 rotates axially, it drives the inclined boss 52 to rotate as well, and the inclined convex surface of the inclined boss 52 pushes against the transmission gear 44 outwards. Figure 11 , Figure 12 , Figure 14 As shown, this disengages the transmission gear 44 from the ring gear, meaning that when the movable cylinder 5 rolls the solid material, the transmission gear 44 will not be driven to rotate until the screen plate 7 moves down and resets. At this point, the movable cylinder 5 rotates back to its original position, and the transmission gear 44 elastically resets. Figure 8 , Figure 13 As shown, until it re-engages with the ring gear.

[0032] As another embodiment of the present invention, optionally, such as Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, a scraper 17 is connected to one side of the bottom end of the feeding cylinder 3. The scraper 17 is located beside the movable cylinder 5. Specifically, the scraper 17 can be arranged parallel to the movable cylinder 5 or along the radial direction of the feeding cylinder 3. When the bottom end of the movable cylinder 5 abuts against the screen plate 7, the bottom end of the scraper 17 abuts against the screen plate 7 and rotates axially with the feeding cylinder 3. Figure 10 As shown, the feeding cylinder 3 rotates counterclockwise, and the movable cylinder 5 is located at the front end in the direction of rotation. That is, the movable cylinder 5 at the front end rolls the solid material, and the scraper 17 at the rear end scrapes up the rolled solid material and collects it in the gap between the movable cylinder 5 and the scraper 17. When the movable cylinder 5 rotates at least one revolution along the screen plate 7 and the gap position faces the slag outlet 9, it is convenient to discharge the rolled solid material along the slag outlet 9.

[0033] The outer periphery of the movable cylinder 5 can be wrapped with a flexible anti-slip pad, which is made of conventional materials such as silicone, rubber, and PVC. The top surface of the sieve plate 7 can be set with a rough particle structure to facilitate the efficient contact and rotation of the movable cylinder 5 and to roll along the top surface of the sieve plate 7.

[0034] The present invention also provides a method for continuous melting and clarification of rosin, comprising the following steps: First, the rosin raw material is fed into the feeding cylinder 3. The raw material continuously flows downward into the spreading cylinder 4 and accumulates along the inclined spreading cylinder 4. The axial rotation of the feeding cylinder 3 drives the spreading cylinder 4 to rotate synchronously, so that the raw material falls evenly downward along the spreading port 41 and the discharge port 51, and the falling material is distributed in various areas of the dissolving tank 1. At this time, the sieve plate 7 is located in the middle of the dissolving tank 1, and the steam injection system in the dissolving tank 1 starts to work, heating and dissolving the rosin. The dissolved resin flows along the sieve holes of the sieve plate 7 towards... With the liquid draining downwards and valve 101 closed, after dissolution is complete, the telescopic part 8 moves the sieve plate 7 upwards, bringing up any remaining large solid particles in the grease solution. When the bottom end of the movable cylinder 5 touches the sieve plate 7, the feeding cylinder 3 rotates axially, causing the movable cylinder 5 to rotate axially, thus misaligning the drain port 51 with the sprinkling port 41. At this point, the movable cylinder 5 acts as a pressure roller, pressing the solids circumferentially along the sieve plate 7, squeezing out the grease contained within the solids, and draining it down the sieve holes into the tank. Inside, the moving cylinder 5 rotates at least one revolution along the screen plate 7, causing the solid material after roller pressing to fall inclinedly along the screen plate 7 and be discharged from the slag outlet 9. While processing the slag discharge, the switch valve 101 is opened to allow the grease liquid to drain into the clarifying tank 2 along the drain pipe 10 for further clarification. After the liquid and slag discharge are completed, the switch valve 101 is closed, and the feeding cylinder 3 feeds the material again. At this time, the screen plate 7 moves down to its original position to carry out the dissolution operation of a new batch. At the same time, clarification also takes place simultaneously in the clarifying tank 2. The process involves waiting for the rosin and turpentine in the tank to separate into layers. Then, the drain port 12 is opened to drain most of the water layer, which is then fed back into the feeding cylinder 3 for circulation. After draining the water layer, the drain port 12 is closed, and the steam injection system and vent pipe 11 in the clarifying tank 2 are opened for distillation. The water and turpentine in the purified rosin are heated and vaporized, and discharged through the vent pipe 11 for condensation and separation to obtain turpentine. The distillation residue in the clarifying tank 2 is liquid rosin, which is discharged through the drain port 12 and further cooled and processed into finished rosin.

[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

Claims

1. A continuous resin melting and clarification processing apparatus, comprising a melting tank (1) and a clarification tank (2), characterized in that: The dissolving tank (1) is rotatably connected to the top center of the dissolving tank (1). The dissolving tank (3) is designed with an open top. The bottom end of the dissolving tank (3) extends into the dissolving tank (1), and a sprinkling tank (4) is connected to one side of the bottom end. The sprinkling tank (4) is designed as a long cylinder with a horizontally inclined shape. A sprinkling port (41) is opened at the bottom end of the sprinkling tank (4) along its length direction. A movable cylinder (5) is sleeved on the outside of the sprinkling tank (4). A leakage port (51) is opened at the bottom end of the movable cylinder (5). One end of the movable cylinder (5) is rotatably connected to the dissolving tank (3), and an elastic element (6) is connected between the movable cylinder (5) and the dissolving tank (3) so that the leakage port (51) is rotated to the initial state of being connected to the sprinkling port (41). The dissolving tank (1) is equipped with a sieve plate (7), and a telescopic part (8) is erected at the center of the feeding cylinder (3). The movable end of the telescopic part (8) extends downward through the feeding cylinder (3) and is connected to the top of the sieve plate (7). A slag outlet (9) is provided on the upper side of one side of the dissolving tank (1). The sieve plate (7) is moved upward by the telescopic part (8) until the bottom of the movable cylinder (5) abuts against the sieve plate (7). The axial rotation of the feeding cylinder (3) drives the movable cylinder (5) to rotate axially so that the leakage port (51) and the sprinkling port (41) are misaligned. The bottom end of the dissolving tank (1) is connected to a drain pipe (10), the bottom end of the drain pipe (10) is connected to one side of the top of the clarifying tank (2), the top of the clarifying tank (2) is provided with a drain pipe (11), the bottom end of the clarifying tank (2) is provided with a drain port (12), and the dissolving tank (1) and the clarifying tank (2) are respectively provided with a steam injection system.

2. The continuous resin melting and clarification processing apparatus according to claim 1, characterized in that, The steam injection system includes a vertical pipe (13) arranged axially along the inside of the dissolving tank (1) and the clarifying tank (2), and a horizontal pipe (14) connected to the side end of the vertical pipe (13). Multiple injection holes are provided on the vertical pipe (13) and the horizontal pipe (14).

3. The continuous resin melting and clarification processing apparatus according to claim 2, characterized in that, The vertical tube (13) inside the dissolving tank (1) extends upward along the bottom of the dissolving tank (1). The top of the vertical tube (13) inside the dissolving tank (1) is connected to a hollow tube (15). A through-hole (71) for the hollow tube (15) to pass through is opened at the center of the sieve plate (7). A horizontal connecting plate (81) is connected to the bottom of the movable end of the telescopic part (8). One end of the horizontal connecting plate (81) is fixedly connected to the inner wall of the through-hole (71). A through groove (151) is vertically opened on one side of the hollow tube (15) to avoid the horizontal connecting plate (81).

4. The continuous resin melting and clarification processing apparatus according to claim 3, characterized in that, The inner ring of the perforation (71) is provided with an annular scraper, and the inner ring of the annular scraper abuts against the outer wall of the hollow tube (15).

5. The continuous resin melting and clarification processing apparatus according to claim 1, characterized in that, The lower end of the feeding cylinder (4) is provided with a feeding shaft (42) along its length. The feeding shaft (42) is connected to a feeding blade (43). The end of the feeding shaft (42) away from the feeding cylinder (3) passes through the feeding cylinder (4) and is connected to a transmission gear (44). An annular platform (16) is provided around the inner wall of the dissolving tank (1). An annular gear ring that meshes with the transmission gear (44) is provided on the annular platform (16). When the feeding cylinder (3) rotates axially, it drives the transmission gear (44) and the feeding shaft (42) to rotate axially.

6. The continuous resin melting and clarification processing apparatus according to claim 5, characterized in that, The telescopic part (8) located inside the feeding cylinder (3) is covered with a protective cover (82). The bottom end of the protective cover (82) is rotatably connected inside the feeding cylinder (3). A bevel gear set (83) is connected between the bottom end of the protective cover (82) and the end of the spreading shaft (42) that passes through the feeding cylinder (3). Feed blades (84) are connected to the outer periphery of the protective cover (82). When the feeding cylinder (3) rotates axially, the protective cover (82) is driven to rotate axially through the spreading shaft (42) and the bevel gear set (83) in sequence.

7. The continuous resin melting and clarification processing apparatus according to claim 6, characterized in that, The material spreading shaft (42) is connected to one end of the transmission gear (44) with an elastic telescopic structure. The outer end of the movable cylinder (5) is attached with a slanted boss (52). When the movable cylinder (5) rotates axially, it drives the slanted boss (52) to rotate together. The slanted convex surface of the slanted boss (52) pushes the transmission gear (44) outward, so that the transmission gear (44) disengages from the meshing connection with the ring gear.

8. The continuous resin melting and clarification processing apparatus according to claim 1, characterized in that, A scraper (17) is connected to one side of the bottom end of the feeding cylinder (3). The scraper (17) is located on the side of the movable cylinder (5). When the bottom end of the movable cylinder (5) abuts against the screen plate (7), the bottom end of the scraper (17) abuts against the screen plate (7).

9. A method for continuous melting and clarification of rosin, wherein the method employs the continuous melting and clarification processing apparatus for rosin as described in any one of claims 1-8, characterized in that, Includes the following steps: First, the rosin raw material is put into the feeding cylinder (3). The raw material flows downward into the spreading cylinder (4) and piles up along the inclined spreading cylinder (4). By rotating axially, the feeding cylinder (3) drives the spreading cylinder (4) to rotate synchronously, so that the raw material falls evenly downward along the spreading port (41) and the leakage port (51). The falling material is distributed in various areas of the dissolving tank (1). At this time, the sieve plate (7) is located in the middle of the dissolving tank (1), and the steam injection system in the dissolving tank (1) starts to work to heat and dissolve the rosin. The dissolved resin flows along the sieve plate (7). Liquid leaks downward through the sieve holes, and the switch valve (101) is in the closed state. After dissolution is complete, the sieve plate (7) is moved upward by the telescopic part (8), bringing up the large solid particles remaining in the grease solution. When the bottom end of the movable cylinder (5) touches the sieve plate (7), the axial rotation of the feeding cylinder (3) drives the movable cylinder (5) to rotate axially, so that the leakage port (51) and the sprinkling port (41) are misaligned. At this time, the movable cylinder (5) is equivalent to a pressure roller, and it rolls the solids around the sieve plate (7) to squeeze out the grease solution contained in the solids and along the sieve holes. The material is drained into the tank. The movable cylinder (5) rotates at least one revolution along the sieve plate (7) so that the solid material after roller pressing falls inclinedly along the sieve plate (7) and is discharged from the slag outlet (9). While processing the slag discharge, the switch valve (101) is opened so that the grease liquid is discharged along the drain pipe (10) into the clarifying tank (2) for further clarification. After the liquid and slag discharge are completed, the switch valve (101) is closed and the material is fed again by the feeding cylinder (3). At this time, the sieve plate (7) moves down to reset and a new batch of dissolution operation is carried out. At this time, the same process also occurs in the clarifying tank (2). The first step is to clarify the liquid. After the oil and water in the tank are separated into layers, the drain port (12) is opened to drain most of the water layer and then put into the feeding cylinder (3) for circulation. After draining the water layer, the drain port (12) is closed and the steam injection system and the vent pipe (11) in the clarifying tank (2) are opened for distillation. The water and turpentine in the clarified liquid are heated and vaporized and discharged through the vent pipe (11) so that turpentine can be obtained by condensation and separation. The distillation residue in the clarifying tank (2) is liquid rosin and is discharged from the drain port (12) for further cooling and processing into rosin finished product.

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