A rosin metering device for rosin production

Abstract

The present invention discloses a turpentine metering device for producing rosin, which includes a crushing and feeding device, a turpentine storage tank, a water storage tank and a metering mechanism. The crushing and feeding device performs cyclic crushing on turpentine. The turpentine crushed to a certain particle size enters a feeding cylinder through a feeding mechanism and a feeding pipe. The discharging end of the feeding cylinder is connected to the metering mechanism. A second delivery pump is provided at the liquid outlet at the bottom of the turpentine storage tank. The liquid outlet of the delivery pump is connected to the metering mechanism through a second liquid outlet pipe. A first delivery pump is installed at the liquid outlet at the bottom of the water storage tank. The liquid outlet of the first delivery pump is connected to the metering mechanism through a first liquid outlet pipe. By designing the metering mechanism, the metering mechanism can automatically change the opening degrees of three linkage valves according to the speed of the pretreated turpentine conveyed by the feeding cylinder. The three linkage valves are opened in proportion, so that turpentine, turpentine oil and water are added in proportion. At the same time, the threshold value of the overflow valve can be set in advance to make the feeding ratio of the three adjustable.

Description

Technical Field

[0001] The present invention relates to the technical field of rosin production equipment, and in particular to a turpentine metering device for producing rosin. Background Art

[0002] Rosin refers to a non-volatile natural resin obtained from pine tree turpentine through different processing methods. Rosin is an important chemical raw material and is widely used in industries such as soap, paper, paint, and rubber.

[0003] The existing processing of turpentine into rosin generally includes the following steps: 1. Pretreatment: Crushing the turpentine; 2. Dissolution: Adding the crushed turpentine into a dissolution pot for dissolution, and at the same time, turpentine, water, oxalic acid, etc. need to be added to dissolve it into a fat solution; 3. Clarification: According to different densities, the static fat solution will be stratified, and the impurities and water at the bottom of the fat solution are removed; 4. Distillation: Distilling out the volatile turpentine and water in the fat solution, and the non-volatile residue obtained is the finished rosin. In the existing processing process, pretreatment requires separate equipment for crushing, and then the crushed turpentine is added to the dissolution pot. Turpentine, water, and turpentine are all added in a certain proportion. As a result, after each addition of turpentine, manual metering of turpentine and water is required, resulting in unstable production efficiency. In view of the above problems, the present invention provides a solution. Summary of the Invention

[0004] The present invention aims to overcome the defects of the prior art and provides a turpentine metering device for producing rosin with a crushing function.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A turpentine metering device for producing rosin, comprising a crushing and feeding device, a turpentine storage tank, a water storage tank and a metering mechanism. The crushing and feeding device cyclically crushes the turpentine. The turpentine crushed to a certain particle size enters the feeding cylinder through a feeding mechanism and a feeding pipe. A second screw feeder is installed inside the feeding cylinder. The second screw feeder is in transmission connection with a feeding motor installed at the end of the feeding cylinder. The discharging end of the feeding cylinder is connected to the metering mechanism. A second delivery pump is provided at the liquid outlet at the bottom of the turpentine storage tank. The liquid outlet of the delivery pump is connected to the metering mechanism through a second liquid outlet pipe. An overflow valve II is installed on the second liquid outlet pipe. The overflow port of the overflow valve II is connected to the turpentine storage tank through a second return pipe. A first delivery pump is installed at the liquid outlet at the bottom of the water storage tank. The liquid outlet of the first delivery pump is connected to the metering mechanism through a first liquid outlet pipe. An overflow valve I is installed on the first liquid outlet pipe. The overflow port of the overflow valve I is connected to the water storage tank through a first return pipe. The metering mechanism internally includes three valve cavities. A first linkage valve block, a second linkage valve block and a third linkage valve block are respectively installed in the three valve cavities. The first linkage valve block, the second linkage valve block and the third linkage valve block are connected into a whole through a valve rod. The first linkage valve block is installed in the valve cavity communicated with the discharging cavity at the end of the feeding cylinder. The second linkage valve block is installed in the valve cavity communicated with the second liquid outlet pipe. The third linkage valve block is installed in the valve cavity communicated with the first liquid outlet pipe. One end of the valve rod is inserted into a guiding hole. An installation hole for installing a return spring is provided between the guiding hole and the valve cavity communicating with the first liquid outlet pipe. The return spring is sleeved on the valve rod, and both ends of the return spring respectively abut against the bottom end of the installation hole and the third linkage valve block. The return spring pushes the first linkage valve block, the second linkage valve block and the third linkage valve block to block the corresponding passages.

[0007] Further, the feeding and crushing device includes a plurality of straight tubular conveying parts and a plurality of arc tubular connecting parts. The plurality of conveying parts and the plurality of connecting parts are fixedly connected at intervals to form a feeding and crushing device that spirally ascends and is connected end to end. The head and tail connection ends of the feeding and crushing device are respectively a head conveying part and a tail conveying part. A first screw feeder is installed inside the conveying part. The end of the rotating shaft of the first screw feeder is installed on the connecting part through a support bearing or the outer ends of the head conveying part and the tail conveying part. The inside of the connecting part includes a middle connecting cavity and a plurality of communication holes evenly distributed outside the connecting cavity. The ends of adjacent first screw feeders extend into the inside of the connecting cavity and are fixedly connected through a universal joint. A crushing mechanism is provided at the connection position between the discharging end of the connecting part and the conveying part. A crushing motor in transmission connection with the first screw feeder is installed at the outer end of the head conveying part. A feeding hopper is provided at the upper end of the head conveying part. The feeding mechanism is installed at the bottom of the tail conveying part. A circulation port communicating with the head conveying part is provided at the bottom of the end of the tail conveying part.

[0008] Further, the crushing mechanism includes a shaping plate installed at the discharge end of the connecting part and crushing blades installed on the rotating shaft of the first screw feeder, near the end of the shaping plate. The shaping plate is provided with evenly distributed shaping holes for the material to pass through.

[0009] Further, a horn-shaped tapered opening is provided at the feed end of the communication hole.

[0010] Further, both ends of the connecting part are respectively connected to the two conveying parts by an interference fit method. Threaded holes are provided on the side wall of the connection surface and are further fixed by bolts cooperating with the threaded holes.

[0011] Further, the blanking mechanism includes a blanking cylinder, a blanking valve block, a blanking valve groove and a screen. The screen is installed at the discharge port below the tail conveying part. The blanking valve groove is arranged inside the tail conveying part below the screen and above the blanking pipe. The blanking valve block is installed in the blanking chute. The blanking cylinder is installed at the bottom of the tail conveying part. The piston rod of the blanking cylinder is connected to the blanking valve block. The blanking cylinder can drive the blanking valve block to move in the blanking chute, so that the blanking mechanism can be in two states: open or closed.

[0012] Further, the crushing device is a spiral rising polygonal structure formed by sequentially connecting a plurality of conveying parts and a plurality of connecting parts end to end.

[0013] Further, the bending angles of the plurality of arc-shaped tubular connecting parts can be different values.

[0014] In summary, the present invention has the following beneficial effects:

[0015] 1. By designing the metering mechanism, the metering mechanism can automatically change the opening degrees of the three linkage valves according to the speed of the pretreated rosin conveyed by the feeding cylinder (the faster the feeding speed, the more the linkage valve block is pushed open). The three linkage valves are opened in proportion, so that rosin, turpentine and water are added in proportion. At the same time, the threshold value of the overflow valve can be set in advance to make the feeding ratio of the three adjustable;

[0016] 2. By setting the crushing and feeding device to crush the rosin in a cycle, after the rosin particles that meet the requirements are crushed and pass through the screen, they are fed through the blanking mechanism and the feeding cylinder. This crushing and feeding device can replace the traditional production process of pretreating rosin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present invention;

[0018] Figure 2 is the top view of the rosin crushing and feeding device part;

[0019] Figure 3It is a partial sectional view of the rosin crushing and feeding device;

[0020] Figure 4 It is a partial sectional view of the rosin crushing and feeding device;

[0021] Figure 5 It is a schematic diagram of the rosin feeding mechanism part;

[0022] Figure 6 It is a schematic diagram of the metering mechanism part.

[0023] In the figure: 1, feed hopper; 2, rosin crushing and feeding device; 3, crushing motor; 4, feeding mechanism; 5, feeding pipe; 6, feeding cylinder; 7, feeding motor; 8, turpentine storage tank; 9, water storage tank; 10, transfer pump I; 11, liquid outlet pipe I; 12, overflow valve I; 13, return pipe I; 14, transfer pump II; 15, return pipe II; 16, liquid outlet pipe II; 17, overflow valve II; 18, metering mechanism; 19, conveying part; 19a, head conveying part; 19b, tail conveying part; 20, connecting part; 21, screw feeder I; 22, universal joint; 23, crushing blade; 24, discharge port; 25, circulation port; 26, conical port; 27, shaping plate; 28, support bearing; 29, feeding cylinder; 30, feeding valve block; 31, feeding valve groove; 32, screw feeder II; 33, discharge cavity; 34, linkage valve block I; 35, linkage valve block II; 36, linkage valve block III; 37, valve rod; 38, return spring; 39, communication hole; 40, connection cavity; 41, screen. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0025] A rosin metering device for producing rosin, as Figure 1 and Figure 6As shown in the figure, it includes a crushing and feeding device 2, a turpentine storage tank 8, a water storage tank 9 and a metering mechanism 18. The crushing and feeding device 2 circularly crushes rosin. The rosin crushed to a certain particle size enters a feeding cylinder 6 through a feeding mechanism 4 and a feeding pipe 5. A second screw feeder 32 is installed inside the feeding cylinder 6. The second screw feeder 32 is in transmission connection with a feeding motor 7 installed at the end of the feeding cylinder 6. The discharging end of the feeding cylinder 6 is connected to the metering mechanism 18. A second delivery pump 14 is provided at the liquid outlet at the bottom of the turpentine storage tank 8. The liquid outlet of the delivery pump 14 is connected to the metering mechanism 18 through a second liquid outlet pipe 16. An overflow valve II 17 is installed on the second liquid outlet pipe 16. The overflow port of the overflow valve II 17 is connected to the turpentine storage tank 8 through a second return pipe 15. A first delivery pump 10 is installed at the liquid outlet at the bottom of the water storage tank 9. The liquid outlet of the first delivery pump 10 is connected to the metering mechanism 18 through a first liquid outlet pipe 11. An overflow valve I 12 is installed on the first liquid outlet pipe 11. The overflow port of the overflow valve I 12 is connected to the water storage tank 9 through a first return pipe 13. The metering mechanism 18 internally includes three valve cavities. A first linkage valve block 34, a second linkage valve block 35 and a third linkage valve block 36 are respectively installed in the three valve cavities. The first linkage valve block 34, the second linkage valve block 35 and the third linkage valve block 36 are connected into a whole through a valve rod 37. The first linkage valve block 34 is installed in the valve cavity communicated with the discharging cavity 33 at the end of the feeding cylinder 6. The second linkage valve block 35 is installed in the valve cavity communicated with the second liquid outlet pipe 16. The third linkage valve block 36 is installed in the valve cavity communicated with the first liquid outlet pipe 11. One end of the valve rod 37 is inserted into a guiding hole. An installation hole for installing a return spring 38 is provided between the guiding hole and the valve cavity communicating with the first liquid outlet pipe 11. The return spring 38 is sleeved on the valve rod 37, and both ends of the return spring 38 are respectively abutted against the bottom end of the installation hole and the third linkage valve block 36. The return spring 38 pushes the first linkage valve block 34, the second linkage valve block 35 and the third linkage valve block 36 to block the corresponding passages. When the feeding cylinder 6 conveys rosin to the metering mechanism 18, the conveying speed of the rosin is different, and the degree of pushing open the first linkage valve block 34 is different. Under the linkage of the valve rod 37, the corresponding second linkage valve block 35 and third linkage valve block 36 are opened to corresponding degrees.

[0026] Further, as Figure 2 , Figure 3 and Figure 4As shown, the feeding and crushing device 2 includes a plurality of straight tubular conveying parts 19 and a plurality of arc tubular connecting parts 20, and the plurality of conveying parts 19 are fixedly connected with the plurality of connecting parts 20 at intervals to form a feeding and crushing device 2 that rises in a spiral and is connected end to end. The head and tail connecting ends of the feeding and crushing device 2 are respectively the head conveying part 19a and the tail conveying part 19b. A screw feeder 21 is installed inside the conveying part 19, and the end of the rotating shaft of the screw feeder 21 is installed on the connecting part 20 or the outer end of the head conveying part 19a and the tail conveying part 19b through a support bearing 28. The connecting part 20 includes a middle connecting cavity 40 and a plurality of uniformly distributed outside the connecting cavity 40. The connecting hole 39, the ends of two adjacent screw feeders 21 extend into the connecting cavity 40 and are fixedly connected by the universal joint 22. Through the connection of the universal joint 22, the crushing motor 3 can drive all the screw feeders 21 to rotate in the corresponding conveying part 19. A crushing mechanism is provided at the connection position between the discharge end of the connecting part 20 and the conveying part 19. The outer end of the head conveying part 19a is equipped with a crushing motor 3 that is transmission-connected to the screw feeder 21. The upper end of the head conveying part 19a is provided with a feeding hopper 1. The unloading mechanism 4 is installed at the bottom of the tail conveying part 19b. The bottom of the end of the tail conveying part 19b is provided with a circulation port 25 connected to the head conveying part 19a.

[0027] Furthermore, the crushing mechanism includes a shaping plate 27 installed at the discharge end of the connecting part 20 and a crushing blade 23 installed on the rotating shaft of the screw feeder 21 and close to one end of the shaping plate 27, and the shaping plate 27 is provided with evenly distributed shaping holes for materials to pass through.

[0028] Furthermore, a trumpet-shaped conical opening 26 is provided at the feed end of the connecting hole 39 .

[0029] Furthermore, the two ends of the connecting portion 20 are respectively connected to the two conveying portions 19 by interference fit, and threaded holes are provided on the side walls of the connecting surface, which are further fixed by bolts fitting in the threaded holes.

[0030] Further, such as Figure 5 As shown, the unloading mechanism 4 includes a unloading cylinder 29, a unloading valve block 30, a unloading valve groove 31 and a screen 41. The screen 41 is installed on the discharge port 24 below the tail conveying part 19b, and the unloading valve groove 31 is arranged inside the tail conveying part 19b below the screen 41 and above the unloading pipe 5. The unloading valve block 30 is installed in the unloading chute 31. The unloading cylinder 29 is installed at the bottom of the tail conveying part 19b. The piston rod of the unloading cylinder 29 is connected to the unloading valve block 30. The unloading cylinder 29 can drive the unloading valve block 30 to move in the unloading chute 31, so that the unloading mechanism 4 can be in two states: open or closed.

[0031] Further, the crushing device 2 is a spiral ascending polygonal structure formed by sequentially connecting a plurality of conveying parts 19 and a plurality of connecting parts 20 end to end. Preferably, it is a regular hexagon or a regular octagon. The number of sides should not be too large, as this will increase the number of connecting parts and the volume of the equipment. Nor should it be too small, as this will cause the curvature of the connecting part 20 to be too large, easily resulting in blockage.

[0032] Further, the elbow angles of the plurality of arc-shaped tubular connecting parts 20 can be different values. The preferred angle values are 120°, 135° and 150°. By changing the angle, the curvature of the assembled crushing and feeding device 2 can be changed to avoid local curvature being too small, resulting in cyclic crushing blockage.

[0033] Working process: The rosin raw material is added to the crushing and feeding device 2 through the feed hopper 1. The crushing motor 3 of the crushing and feeding device 2 drives the screw feeder 1 21 inside the conveying part 19 to rotate and feed the rosin. After the rosin passes through the connecting part 20, under the action of the feeding extrusion pressure, it is shaped through the shaping holes on the shaping plate 27, and then crushed by the crushing blades 23. The crushed rosin continues to be fed by the screw feeder 1 21 inside the next conveying part 19. When it is shaped again through the shaping plate 27 of the next connecting part 20, the rosin is conveyed and crushed inside the crushing and feeding device 2. When the rosin is conveyed to the tail conveying part 19b, the rosin particles crushed to a certain particle size pass through the screen 41 and are fed through the feeding mechanism 4 and the feeding cylinder 6. When the feeding cylinder 6 conveys the rosin to the metering mechanism 18, the conveying speed of the rosin is different, and the degree to which it pushes open the linkage valve block 1 34 is different. Under the linkage of the valve rod 37, the corresponding linkage valve block 2 35 and the linkage valve block 3 36 are opened to corresponding degrees to achieve the proportional addition of rosin, turpentine and water. At the same time, the threshold value of the overflow valve can be set in advance to make the feeding ratio of the three adjustable.

[0034] This specific embodiment is only an explanation of the present invention and does not limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A rosin metering device for producing rosin, characterized in that: It includes a crushing and feeding device (2), a turpentine storage tank (8), a water storage tank (9) and a metering mechanism (18). The crushing and feeding device (2) performs cyclic crushing on pine resin. The pine resin crushed to a certain particle size enters a feeding cylinder (6) through a feeding mechanism (4) and a feeding pipe (5). A second screw feeder (32) is installed in the feeding cylinder (6). The second screw feeder (32) is in transmission connection with a feeding motor (7) installed at the end of the feeding cylinder (6). The discharging end of the feeding cylinder (6) is connected to the metering mechanism (18). A second delivery pump (14) is provided at the liquid outlet at the bottom of the turpentine storage tank (8). The liquid outlet of the second delivery pump (14) is connected to the metering mechanism (18) through a second liquid outlet pipe (16). An overflow valve II (17) is installed on the second liquid outlet pipe (16). The overflow port of the overflow valve II (17) is connected to the turpentine storage tank (8) through a second return pipe (15). A first delivery pump (10) is installed at the liquid outlet at the bottom of the water storage tank (9). The liquid outlet of the first delivery pump (10) is connected to the metering mechanism (18) through a first liquid outlet pipe (11). An overflow valve I (12) is installed on the first liquid outlet pipe (11). The overflow port of the overflow valve I (12) is connected to the water storage tank (9) through a first return pipe (13). The metering mechanism (18) internally includes three valve cavities. A first linkage valve block (34), a second linkage valve block (35) and a third linkage valve block (36) are respectively installed in the three valve cavities. The first linkage valve block (34), the second linkage valve block (35) and the third linkage valve block (36) are connected into a whole through a valve rod (37). The first linkage valve block (34) is installed in the valve cavity communicated with the discharging cavity (33) at the end of the feeding cylinder (6). The second linkage valve block (35) is installed in the valve cavity communicated with the second liquid outlet pipe (16). The third linkage valve block (36) is installed in the valve cavity communicated with the first liquid outlet pipe (11). One end of the valve rod (37) is inserted into a guiding hole. An installation hole for installing a return spring (38) is provided between the guiding hole and the valve cavity communicating with the first liquid outlet pipe (11). The return spring (38) is sleeved on the valve rod (37), and both ends of the return spring (38) are respectively abutted against the bottom end of the installation hole and the third linkage valve block (36). The return spring (38) pushes the first linkage valve block (34), the second linkage valve block (35) and the third linkage valve block (36) to block the corresponding passages.

2. The rosin metering device for producing rosin according to claim 1, characterized in that: The crushing and feeding device (2) comprises a plurality of straight tube-shaped conveying parts (19) and a plurality of arc tube-shaped connecting parts (20). The plurality of conveying parts (19) and the plurality of connecting parts (20) are fixedly connected at intervals to form a crushing and feeding device (2) that rises in a spiral and is connected end to end. The head and tail connecting ends of the crushing and feeding device (2) are respectively a head conveying part (19a) and a tail conveying part (19b). A screw feeder (21) is installed inside the conveying part (19). The end of the rotating shaft of the screw feeder (21) is installed on the connecting part (20) or the outer end of the head conveying part (19a) and the tail conveying part (19b) through a support bearing (28). The connecting part (20) includes a middle connecting part A connecting cavity (40) and a plurality of communicating holes (39) uniformly distributed on the outside of the connecting cavity (40); the ends of two adjacent spiral feeders (21) extend into the connecting cavity (40) and are fixedly connected via a universal joint (22); a crushing mechanism is provided at the connection position between the discharge end of the connecting portion (20) and the conveying portion (19); a crushing motor (3) drivingly connected to the spiral feeder (21) is installed at the outer end of the head conveying portion (19a); a feed hopper (1) is provided at the upper end of the head conveying portion (19a); the unloading mechanism (4) is installed at the bottom of the tail conveying portion (19b); and a circulation port (25) communicating with the head conveying portion (19a) is provided at the bottom of the tail conveying portion (19b).

3. The rosin metering device for producing rosin according to claim 2, characterized in that: The crushing mechanism comprises a shaping plate (27) mounted at the discharge end of the connecting part (20) and a crushing blade (23) mounted on the rotating shaft of the screw feeder (21) and close to one end of the shaping plate (27). The shaping plate (27) is provided with evenly distributed shaping holes for materials to pass through.

4. The rosin metering device for producing rosin according to claim 3, characterized in that: The feeding end of the connecting hole (39) is provided with a trumpet-shaped conical opening (26).

5. The rosin metering device for producing rosin according to claim 4, characterized in that: The two ends of the connecting part (20) are respectively connected to the two conveying parts (19) by means of interference fit, and threaded holes are provided on the side walls of the connecting surface, which are further fixed by bolts fitting into the threaded holes.

6. The rosin metering device for producing rosin according to claim 5, wherein: The unloading mechanism (4) comprises an unloading cylinder (29), an unloading valve block (30), an unloading valve slot (31) and a screen (41); the screen (41) is mounted on the discharge port (24) below the tail conveying part (19b); the unloading valve slot (31) is arranged inside the tail conveying part (19b) below the screen (41) and above the unloading pipe (5); the unloading valve block (30) is mounted in the unloading chute (31); the unloading cylinder (29) is mounted at the bottom of the tail conveying part (19b); the piston rod of the unloading cylinder (29) is connected to the unloading valve block (30); the unloading cylinder (29) can drive the unloading valve block (30) to move in the unloading chute (31), so that the unloading mechanism (4) can be in two states: open or closed.

7. The pine resin metering device for producing rosin according to claim 6, characterized in that: The crushing and feeding device (2) is a spirally ascending polygonal structure composed of a plurality of conveying parts (19) and a plurality of connecting parts (20) connected end to end in sequence.

8. A rosin metering device for producing rosin according to claim 7, characterized in that: The bending angles of the multiple arc-shaped tubular connecting parts (20) can be different values.

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