Colloidal particle forming apparatus

Abstract

The present application relates to rubber rubber particle forming device technical field, it is a kind of rubber particle forming equipment, it includes liquid inlet pipe, glue spraying disc, first cylinder, second cylinder, elbow and gap adjusting device, liquid inlet pipe, glue spraying disc, first cylinder are sequentially fixed and installed from left to right together, at least two circular-arc liquid inlet flow channels are provided on glue spraying disc, baffle ring channel is provided in first cylinder, outer edge is provided in baffle ring channel right end, first cylinder, baffle ring channel right end outer edge, second cylinder, elbow are sequentially fixed and installed from left to right together.The present application is reasonable and compact in structure, convenient to use, it uses steam as power to cut the mixture of glue solution and hot water from steam outer passage, steam inner passage, form drop-shaped glue solution outside kettle, drop-shaped glue solution and water enter stripping kettle together, under the action of steam and stirring in stripping kettle, rubber particle diameter is reduced, solvent oil in rubber particle is more easily removed, reduce the viscosity of rubber particle.

Description

Technical Field

[0001] This invention relates to the technical field of rubber granule forming devices, and is a granule forming equipment. Background Technology

[0002] In China, rare earth butadiene rubber commonly faces difficulties in forming rubber compounds during stripping units. This leads to challenges in rubber compound transportation between stripping kettles, and rubber buildup on pumps and pipelines between kettles, hindering the long-term operation of the stripping unit. Furthermore, the rubber particles inside the stripping kettles are often too large, resulting in poor compound forming. The solvent oil trapped within the particles is difficult to strip, leading to high steam and solvent oil consumption. Rubber particles with high oil content are transported to the post-treatment system. After processing by the extruder and dryer, high-concentration hydrocarbon waste gas is collected and enters the post-treatment waste gas treatment facility, increasing the safety risks associated with its operation.

[0003] Domestic rare earth butadiene rubber plants use pipeline mixers or dynamic mixers for mixing. After the rubber solution and hot water are mixed, they enter a stripping kettle. In the stripping kettle, water separation and coagulation occur under the action of steam and agitator, forming rubber particles. During this process, under the combined action of steam and agitator, the rubber solution is dispersed in hot water, forming small droplets suspended in the hot water. Steam provides heat, raising the temperature inside the kettle to promote solvent evaporation and phase separation in the rubber solution. After solvent removal, rubber particles are formed. Because rare earth butadiene rubber latex has a high viscosity, the process of forming small droplets relies mainly on continuous stirring by the agitator to gradually break the liquid into droplets. During this process, the latex easily adheres to the inner wall of the stripping reactor, the shaft and blades of the agitator, and the amount of adhering material gradually increases, affecting the stirring effect and consequently the granulation effect. Poor granulation results in larger granules, making it difficult to remove the solvent oil trapped within them. Increased granule viscosity further exacerbates adhesion to the inner wall of the stripping reactor, the shaft and blades of the agitator, and the inter-reactor pump and pipelines, severely impacting the long-term operation of the stripping system. Poor solvent oil removal from the granules also increases solvent oil consumption, requiring more steam and increasing stripping energy consumption. Summary of the Invention

[0004] This invention provides a granule forming device that overcomes the shortcomings of the prior art and can effectively solve the problem that the solvent oil wrapped in the larger granules of the granule liquid droplets in the stripping kettle is not easy to remove.

[0005] The technical solution of the present invention is achieved through the following measures: a granule forming device, comprising an inlet pipe, a spraying disc, a first cylinder, a second cylinder, an elbow, and a gap adjustment device. The inlet pipe, the spraying disc, and the first cylinder are fixedly installed together from left to right. The spraying disc is provided with at least two arc-shaped inlet channels. The first cylinder is provided with a baffle ring channel. The right end of the baffle ring channel is provided with an outer edge. The first cylinder, the right outer edge of the baffle ring channel, the second cylinder, and the elbow are fixedly installed together from left to right. There is an external steam channel between the inner side of the first cylinder and the outer side of the baffle ring channel. The first cylinder is provided with an external steam inlet. The inner side of the baffle ring channel is provided with a glue cutting disc. The glue cutting disc is provided with an outlet channel corresponding to the inlet channel. A gap adjustment device that can adjust the gap between the glue cutting disc and the spraying disc is connected to the middle of the glue cutting disc.

[0006] The following are further optimizations and / or improvements to the above-mentioned technical solution:

[0007] Preferably, the gap adjustment device includes an adjusting rod and a screw. The left end of the adjusting rod is threaded and has a stepped shaft. The left end of the adjusting rod passes through the center of the adhesive cutting disc and is connected to a nut. The right end of the adjusting rod passes through an elbow and is rotatably connected to the screw.

[0008] Preferably, it also includes an inner steam channel, a bracket is hollowed out in the middle of the glue cutting disc, an inner steam channel is provided on the outside of the adjusting rod, the left end of the inner steam channel is a flared mouth, the left end of the inner steam channel is located on the right inner side of the glue cutting disc, a support frame for supporting the adjusting rod is provided in the inner steam channel, an inner steam inlet is provided on the inner steam channel corresponding to the position outside the elbow, a first flange is provided on the right end of the inner steam channel, a second flange is provided on the outside of the screw, and the first flange and the second flange are fixedly connected.

[0009] Preferably, the gap adjustment device further includes a connecting rod, and a sealing bellows at the right end of the sealing steam inner passage is fixedly installed on the right end of the adjusting rod. The right part of the sealing bellows is located in the groove in the middle of the first flange. A connecting rod is fixedly installed inside the sealing bellows. The right end of the connecting rod passes through the first flange and is located inside the left part of the second flange. A threaded sleeve is installed at the center of the right part of the second flange. The left end of the screw passes through the threaded sleeve and is rotatably connected to the connecting rod. The right end of the screw is connected to a handle by a key.

[0010] Preferably, the left side of the second flange has an opening, an indicator rod is installed on the connecting rod, the end of the indicator rod passes through the opening and is located outside the second flange, and a scale is provided on the outside of the second flange.

[0011] Preferably, the gap adjustment device further includes a fastening set screw, and the outer side of the connecting rod has a cut surface. After passing through the second flange, the fastening set screw is pressed against the cut surface of the outer side of the connecting rod.

[0012] Preferably, the glue spraying tray and glue cutting tray are integrally stamped from sheet metal, with four liquid inlet channels and liquid outlet channels milled out. The glue spraying tray and glue cutting tray are provided with positioning holes, and pins are installed in the positioning holes.

[0013] Preferably, the second cylinder is provided with two hot water inlet pipes, which are inclined and the inclination direction of the hot water inlet pipes is consistent with the direction of the liquid outlet.

[0014] This invention has a reasonable and compact structure and is easy to use. It uses steam as power to cut the mixture of adhesive and hot water through the outer steam channel and the inner steam channel, forming droplet-shaped adhesive outside the vessel. The droplet-shaped adhesive and water enter the stripping vessel together. Under the action of steam and stirring in the stripping vessel, the diameter of the adhesive particles is reduced, the solvent oil in the adhesive particles is more easily removed, and the viscosity of the adhesive particles is reduced. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the main structure of an embodiment of the present invention.

[0016] Appendix Figure 2 For the appendix Figure 1 A cross-sectional structural diagram.

[0017] Appendix Figure 3 For the appendix Figure 2 Enlarged schematic diagram of the central structure.

[0018] Appendix Figure 4 This is a schematic diagram of the right-side structure of the adhesive cutting disc.

[0019] Appendix Figure 5 For the appendix Figure 4 A schematic diagram of the cross-sectional structure at point AA.

[0020] Appendix Figure 6 This is a schematic diagram of the right-side structure of the glue spraying tray.

[0021] Appendix Figure 7 For the appendix Figure 6 Schematic diagram of the cross-sectional structure at point BB.

[0022] Appendix Figure 8 This is a cross-sectional structural diagram of the gap adjustment device.

[0023] Appendix Figure 9 This is a magnified schematic diagram of the gap adjustment device.

[0024] The codes in the attached diagram are as follows: 1 is the liquid inlet pipe, 2 is the glue spraying disc, 3 is the first cylinder, 4 is the second cylinder, 5 is the elbow, 6 is the baffle ring, 7 is the external steam channel, 8 is the external steam inlet, 9 is the glue cutting disc, 10 is the liquid inlet channel, 11 is the liquid outlet channel, 12 is the adjusting rod, 13 is the screw, 14 is the nut, 15 is the internal steam channel, 16 is the bracket, 17 is the support frame, 18 is the internal steam inlet, 19 is the first flange, 20 is the second flange, 21 is the connecting rod, 22 is the sealing bellows, 23 is the threaded sleeve, 24 is the handle, 25 is the opening, 26 is the indicator rod, 27 is the scale, 28 is the fastening set screw, 29 is the pin, 30 is the hot water inlet pipe, and 31 is the positioning hole. Detailed Implementation

[0025] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0026] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0027] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0028] Example 1: As shown in the attached document Figure 1-9 As shown, the granule forming equipment includes an inlet pipe 1, a spraying disc 2, a first cylinder 3, a second cylinder 4, an elbow 5, and a gap adjustment device. The inlet pipe 1, the spraying disc 2, and the first cylinder 3 are fixedly installed together from left to right. The spraying disc 2 is provided with at least two arc-shaped inlet channels 10. The first cylinder 3 is provided with a baffle ring channel 6. The right end of the baffle ring channel 6 is provided with an outer edge. The first cylinder 3, the right outer edge of the baffle ring channel 6, the second cylinder 4, and the elbow 5 are fixedly installed together from left to right. There is a steam external channel 7 between the inner side of the first cylinder 3 and the outer side of the baffle ring channel 6. The first cylinder 3 is provided with an external steam inlet 8. The inner side of the baffle ring channel 6 is provided with a glue cutting disc 9. The glue cutting disc 9 is provided with an outlet channel 11 corresponding to the inlet channel 10. A gap adjustment device that can adjust the gap between the glue cutting disc 9 and the spraying disc 2 is connected to the middle of the glue cutting disc 9.

[0029] Before the mixture of adhesive solution and hot water enters the stripping reactor, this invention is installed. The mixture of adhesive solution and hot water enters the equipment through the inlet pipe 1, is throttled and pressurized through the arc-shaped inlet channel 10 of the spraying plate 2, and then flows out through the outlet channel 11 connected to the inlet channel 10. Steam is injected into the steam outer channel 7 through the external steam inlet 8, and enters the gap between the spraying plate 2 and the adhesive solution cutting plate 9 along the path of the steam outer channel 7. Here, the steam cuts the adhesive solution in the adhesive solution into particles required for production. The cut adhesive particles then enter the baffle ring channel 6, and are sent out through the second cylinder 4 and the elbow 5 into the stripping reactor. The gap between the adhesive solution cutting plate 9 and the spraying plate 2 is adjusted by the gap adjustment device, thereby controlling the size of the adhesive particles.

[0030] The specific operating parameters of the equipment are as follows: the volume ratio of hot water to adhesive liquid at the equipment inlet is controlled at 2-6:1, preferably 3-5:1; the steam used in the granulation equipment is medium-pressure steam with a pressure of 1.2-1.6 MPa; the mass ratio of adhesive liquid to medium-pressure steam is 10-15:1; the volume ratio of hot water at the inlet to hot water at the outlet is 5-9:1; and the volume ratio of hot water to dispersant at the inlet is 1400-2000:1. The gap adjustment mechanism between the adhesive spraying disc 2 and the adhesive cutting disc 9 adjusts the gap to 1.5-5.5 mm.

[0031] A petrochemical butadiene rubber unit added a granulation equipment to its stripping unit. The spraying rate is 20 cubic meters per hour, and the mass rate is 13 tons per hour. The volume ratio of hot water to sprayed adhesive at the inlet of the granulation equipment is controlled at 4:1. Both the internal and external steam channels of the granulation equipment use medium-pressure steam at 1.4 MPa. The mass ratio of sprayed adhesive to medium-pressure steam is 11:1. The volume ratio of hot water at the inlet to the outlet is 5:1. The volume ratio of hot water to dispersant at the inlet is 1500:1. The adhesive and hot water enter the granulation equipment after passing through a static mixer. The gap between the spraying mechanism and the cutting device is adjusted to 4 mm using a scale, resulting in granule diameters of 0.5–1 cm. Steam consumption is 1.7 t / ton of adhesive, reducing unit energy consumption by 15 kg standard oil / ton of adhesive; solvent oil consumption is reduced to 43 kg / ton of adhesive.

[0032] A petrochemical butadiene rubber unit added a granulation equipment to its stripping unit. The spraying rate is 21 cubic meters per hour, and the mass is 13.65 tons per hour. The volume ratio of hot water to sprayed adhesive at the inlet of the granulation equipment is controlled at 5:1. Both the internal and external steam channels of the granulation equipment use medium-pressure steam at 1.4 MPa, with a mass ratio of sprayed adhesive to medium-pressure steam of 13:1. The volume ratio of hot water at the inlet to the outlet is 6:1. The volume ratio of hot water to dispersant at the inlet is 1500:1. The adhesive and hot water enter the granulation equipment after passing through a static mixer. The gap between the spraying mechanism and the cutting device is adjusted to 2.8 mm using a scale, resulting in granule diameters of 0.5–1 cm. Steam consumption is 1.8 t / ton of adhesive, reducing unit energy consumption by 10 kg standard oil / ton of adhesive; solvent oil consumption is reduced to 45 kg / ton of adhesive.

[0033] By incorporating this invention, the pre-coagulation of the rubber solution outside the stripping kettle is achieved, forming droplet-shaped rubber solution. After entering the stripping kettle, the droplet-shaped rubber solution has better diffusion. Under the action of steam and stirring in the stripping kettle, the diameter of the rubber particles is reduced from 2-3 cm to 0.5-1 cm; steam consumption is reduced from 3-3.5 t / ton of rubber to 1.5-1.8 t / ton of rubber, and energy consumption is reduced by 10-20 kg of standard oil / ton of rubber; solvent oil consumption is reduced from 50 kg / ton of rubber to 40-45 kg / ton of rubber. Each ton of solvent oil costs 10,000 yuan. Based on a production load of 50,000 tons / year of butadiene rubber, this can increase efficiency by 2.5 million yuan / year.

[0034] Due to the improved stripping effect of solvent oil in the first stripping batch, the particle diameter of the particles is reduced, making it easier for the solvent oil to be removed from the particles. As a result, the solvent oil content in the particles is low, the viscosity of the particles is reduced, the amount of adhesive residue on the pumps and outlet pipelines of the stripping reactor is reduced, the operating cycle of the pumps and outlet pipelines is extended from 1 month to 6 months, and the operating cycle of the stripping unit is extended to more than half a year.

[0035] The hydrocarbon concentration in the colloidal waste gas transported to the post-treatment stage was significantly reduced, from 3–5 g / m³. 3 Reduced to 1-2 g / m 3 This reduces the operational risks of post-treatment waste gas treatment facilities.

[0036] The above-mentioned granule molding equipment can be further optimized and / or improved according to actual needs:

[0037] Example 2: As shown in the attached document Figure 2 , 8As shown in Figure 9, the gap adjustment device includes an adjusting rod 12 and a screw 13. The left end of the adjusting rod 12 is threaded and has a stepped shaft. The left end of the adjusting rod 12 passes through the center of the adhesive cutting disc 9 and is connected to a nut 14. The right end of the adjusting rod 12 passes through an elbow 5 and is rotatably connected to the screw 13. When the screw 13 rotates, it moves to the right, causing the adjusting rod 12 to move to the right. The nut 14 at the left end pulls the adhesive cutting disc 9 to the right. When the adjusting rod 12 moves to the left, the step on the right end of the adjusting rod 12 at the center of the adhesive cutting disc 9 can push the adhesive cutting disc 9 to the left, thereby adjusting the gap. As needed, the screw can be replaced with other mechanisms that can pull the adjusting rod to move.

[0038] Example 3: As shown in the attached document Figure 2 As shown, it also includes an inner steam channel 15. A bracket 16 is hollowed out in the middle of the adhesive cutting disc 9. The inner steam channel 15 is located on the outside of the adjusting rod 12. The left end of the inner steam channel 15 is a flared opening, located on the inner right side of the adhesive cutting disc 9. A support frame 17 for supporting the adjusting rod 12 is provided inside the inner steam channel 15. An inner steam inlet 18 is provided on the inner steam channel 15 corresponding to the position outside the elbow 5. A first flange 19 is provided on the right end of the inner steam channel 15, and a second flange 20 is provided on the outside of the screw 13. The first flange 19 and the second flange 20 are fixedly connected. Steam enters through the inner steam inlet 18, passes through the hollowed-out area in the middle of the adhesive cutting disc 9 through the inner steam channel 15, and enters the gap between the adhesive spraying mechanism and the adhesive cutting device, cutting the adhesive from the inside out. The external steam and the internal steam provide shearing force in two directions on the adhesive particles, making the adhesive particles more uniformly formed. The steam inner channel 15 passes through the elbow 5. A reinforcing ring is provided on the outside of the elbow 5 to support the steam inner channel 15 and prevent it from breaking.

[0039] Example 4: As shown in the appendix Figure 8 As shown, the gap adjustment device also includes a connecting rod 21. A sealing bellows 22, which is part of the right end of the sealing steam inner passage 15, is fixedly installed on the right end of the adjusting rod 12. The right part of the sealing bellows 22 is located in a groove in the middle of the first flange 19. The connecting rod 21 is fixedly installed inside the sealing bellows 22. The right end of the connecting rod 21 passes through the first flange 19 and is located inside the left part of the second flange 20. A threaded sleeve 23 is installed at the center of the right part of the second flange 20. The left end of the screw 13 passes through the threaded sleeve 23 and is rotatably connected to the connecting rod 21. The right end of the screw 13 is connected to a handle 24 via a key. The sealing bellows 22 is fixed to the right end of the adjusting rod 12. The bellows is pressed tightly against the first flange 19 and the second flange 20 to seal, thereby blocking the steam in the steam inner passage 15. The connection between the connecting rod 21 and the screw 13 further enhances the sealing effect. The gap adjustment range is 1.5mm to 5.5mm. Rotating the handle 24 causes the screw 13 to rotate and move left and right within the threaded sleeve 23. The screw 13 pulls the connecting rod, which in turn pulls the sealing bellows 22. The sealing bellows 22 then pulls the adjusting rod to move left and right, thus achieving gap adjustment.

[0040] Example 5: As shown in the attached document Figure 8 , 9 As shown, the second flange 20 has an opening 25 on its left side. An indicator rod 26 is mounted on the connecting rod 21, with the end of the indicator rod 26 passing through the opening 25 and located outside the second flange 20. A scale 27 is provided on the outside of the second flange 20. The adjustment gap can be visually observed by setting the scale 27. (See attached image) Figure 1 , 2 As shown, the gap adjustment device also includes a fastening set screw 28. The connecting rod 21 has a cut surface on its outer side. The fastening set screw 28 passes through the second flange 20 and is pressed against the cut surface on the outer side of the connecting rod 21. By setting the fastening set screw 28, steam impact after gap adjustment is avoided, which could cause the adjusting rod to move and change the gap. The contact position between the glue spraying mechanism and the glue cutting disc 9 is set to 0 point. The gap between the glue spraying disc 2 and the glue cutting disc 9 is adjusted by rotating the handwheel of the adjustment device. After the required gap for production is achieved, the fastening set screw 28 is used to fix the position of the adjusting rod, preventing the impact of steam and glue liquid from causing changes in the gap between the glue spraying disc 2 and the glue cutting disc 9.

[0041] Example 6: As attached Figure 4-7 As shown, the glue spraying tray 2 and the glue cutting tray 9 are formed by integral stamping of sheet metal, with four inlet channels 10 and outlet channels 11 milled out. Positioning holes 31 are provided on the glue spraying tray 2 and the glue cutting tray 9, and pins 29 are installed in the positioning holes 31. The pins 29 prevent the inlet channels 10 and outlet channels 11 from shifting during equipment installation and operation. The glue spraying tray 2 and the glue cutting tray 9 are formed by integral stamping of sheet metal, resulting in higher strength.

[0042] Example 7: As attached Figure 2 , 3 As shown, the second cylinder 4 is equipped with two hot water inlet pipes 30, which are inclined and the inclination direction of the hot water inlet pipes 30 is consistent with the direction of the liquid outlet. Two streams of hot water are introduced into the hot water inlet of the conveying channel to provide conveying power for the colloidal water and to flush the elbow 5 to prevent the colloidal particles from accumulating and sticking in the dead corner between the elbow 5 and the steam inner channel 15.

[0043] The above technical features constitute various embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A colloidal particle forming apparatus, characterised in that The application relates to a glue spraying device, which comprises a liquid inlet pipe, a glue spraying disc, a first cylinder, a second cylinder, an elbow and a gap adjusting device.

2. The colloid forming apparatus of claim 1, wherein The gap adjusting device further comprises a connecting rod, a sealing bellow fixedly installed at the right end of the adjusting rod and sealing the right end of the steam inner channel, the right part of the sealing bellow being located in a groove in the middle of the first flange, the connecting rod being fixedly installed in the sealing bellow, the right end of the connecting rod penetrating through the left part of the second flange, a threaded sleeve being installed at the center of the right part of the second flange, the left end of the screw rod penetrating through the threaded sleeve and being rotationally connected with the connecting rod, and a handle being connected with the right end of the screw rod through a key.

3. The colloid forming apparatus of claim 2, wherein The left part of the second flange has an opening, an indicating rod is installed on the connecting rod, the end of the indicating rod penetrating through the opening and being located outside the second flange, and a scale is arranged on the outside of the second flange.

4. The colloid forming apparatus according to claim 2 or 3, characterized in that The gap adjusting device further comprises a fastening top wire, a cutting surface being arranged on the outside of the connecting rod, and the fastening top wire penetrating through the second flange and being tightly pressed against the cutting surface on the outside of the connecting rod.

5. The pellet forming apparatus according to claim 1 or 2 or 3, characterized by The glue spraying disc and the glue cutting disc are integrally stamped from a plate material, four liquid inlet channels and liquid outlet channels are milled, positioning holes are arranged on the glue spraying disc and the glue cutting disc, and a pin is installed in the positioning holes.

6. The colloid forming apparatus of claim 4, wherein The glue spraying disc and the glue cutting disc are integrally stamped from a plate material, four liquid inlet channels and liquid outlet channels are milled, positioning holes are arranged on the glue spraying disc and the glue cutting disc, and a pin is installed in the positioning holes.

7. The pellet forming apparatus according to claim 1 or 2 or 3 or 6, characterized by Two hot water inlet pipes are arranged on the second cylinder, the hot water inlet pipes are arranged in an inclined manner, and the inclined directions of the hot water inlet pipes are consistent with the directions of the liquid outlets.

8. The colloid forming apparatus of claim 4, wherein Two hot water inlet pipes are arranged on the second cylinder, the hot water inlet pipes are arranged in an inclined manner, and the inclined directions of the hot water inlet pipes are consistent with the directions of the liquid outlets.

9. The colloid forming apparatus of claim 5, wherein Two hot water inlet pipes are arranged on the second cylinder, the hot water inlet pipes are arranged in an inclined manner, and the inclined directions of the hot water inlet pipes are consistent with the directions of the liquid outlets.

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