A method for preventing the inner wall of tobacco processing equipment from sticking by using food grade lining
By using food-grade lining materials, the temperature-resistant, wear-resistant, corrosion-resistant anti-adhesive linings prepared by using food-grade lining materials and installed on the inner wall of tobacco processing equipment through chemical welding, the problem of adhesion materials on the inner wall of the equipment is solved, achieving effective anti-adhesive and cost-saving effects.
Patent Information
- Application Number
- CN202311244519.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-25
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2043-09-25
AI Technical Summary
The inner wall of tobacco processing equipment is prone to adhere to materials, resulting in difficulty in cleaning, equipment corrosion, wear and quality of finished smoke. The existing polytetrafluoroethylene coating is costly and the anti-stickness is prone to decline.
Food grade lining materials, including PEEK polyether ether ketone, ECTFE powder, modan wax, beeswax, curing agent, zirconia powder, titanium oxide powder and yttrium oxide powder, are prepared by stirring and injection molding, and are installed on the inner wall of the equipment through chemical welding.
It realizes effective anti-stickness of the inner wall of the equipment, with good durability and anti-stickness effect and slow decline. In addition, this construction method uses anti-stickness function as an independent component, which is convenient for subsequent recycling and saving costs.
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Figure CN117186779B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of anti-sticking, and in particular to a method for preventing the inner wall of tobacco processing equipment from sticking by using a food-grade lining. Background Art
[0002] In domestic tobacco processing links such as leaf threshing and redrying factories and cigarette factories, tobacco leaves, tobacco shreds, tobacco stems and other materials need to be threshed, separated, dried and bundled, vacuumed, dried, cut, temperature controlled, humidity controlled, material blended, dust removed and filtered, stored and aged, rolled and glued, packaged and transported. Due to the complex organic matter contained in tobacco and the temperature and humidity required by the process, such as tar, flavors and fragrances, sugars, lipids, condensed water, etc., it is common in the tobacco processing industry that processing equipment often adheres to materials. These materials are very difficult to clean, and these attachments will cause mixing, water accumulation in the smoke, and affect the quality of the finished cigarettes; they will also cause corrosion, wear, leakage and deviation of equipment process parameters of tobacco processing equipment; in the later stage, they need to be repeatedly rinsed with water or cleaned with chemical reagents, resulting in increased time and labor costs and sewage treatment costs;
[0003] In the prior art, a method of applying a pressure coating to processing equipment is generally adopted, and most of the coatings are polymer materials with polytetrafluoroethylene (PTFE) as the main component, which have the characteristics of small friction coefficient, no water absorption, and no oil stickiness. However, this type of coating is expensive, and the anti-stickiness is easy to decline after long-term use. In addition, the method of applying the coating does not have any recycling function, resulting in high costs. Therefore, the present invention proposes a method for preventing the inner wall of tobacco processing equipment from sticking with a food-grade lining to solve the problems existing in the prior art. Summary of the invention
[0004] In view of the above problems, the present invention proposes a method for preventing the inner wall of tobacco processing equipment from sticking by using a food-grade lining, which is temperature-resistant, wear-resistant, corrosion-resistant, has good anti-sticking effect and decays slowly.
[0005] To achieve the purpose of the present invention, the present invention is implemented by the following technical scheme: a method for preventing the inner wall of tobacco processing equipment from sticking with food-grade lining, comprising the following steps:
[0006] Step 1: Prepare materials: PEEK polyetheretherketone, ECTFE powder, montan wax, beeswax, curing agent, zirconium oxide powder, titanium oxide powder and yttrium oxide powder;
[0007] Step 2: PEEK and ECTFE powders are put into a mixing device and stirred to obtain a matrix;
[0008] Step 3: Put montan wax and beeswax into a pulverizer and grind them into powder, then add zirconium oxide powder, titanium oxide powder and yttrium oxide powder into the powder to obtain a mixture;
[0009] Step 4: Add the mixed powder into the matrix, stir, add the curing agent, stir evenly, and mix into the raw material;
[0010] Step 5: Extruding part of the raw material into a flat profile, and then injection molding another part of the raw material into a special-shaped part for nesting according to the convex shape inside the processing equipment;
[0011] Step 6: On-site construction, use cleaning equipment to clean the inner wall of the processing equipment with cleaning liquid, thoroughly remove oil, dirt and water, and then use sandpaper to roughen it;
[0012] Step 7: Cut the flat profile into a lining suitable for the inner wall, and use sodium naphthalene treatment liquid to treat the surface of the lining that needs to be fixed to the inner wall;
[0013] Step 8: Use chemical welding to weld the flat profile to the inner wall of the processing equipment, and then nest the special-shaped parts on the protrusions.
[0014] The processing equipment includes a vibrating conveyor, a steel spice tank, a stirring paddle, a material discharge hopper, a dust and moisture exhaust hood, a storage cabinet, a roller type processing equipment, a moisture exhaust pipe, a dust removal pipe and a dust removal fan, a turnover box, and a glue cylinder.
[0015] A further improvement is that in the step one, the raw materials are prepared according to the following mass ratio: 40-70 parts of PEEK polyetheretherketone, 5-15 parts of ECTFE powder, 3-13 parts of montan wax, 5-10 parts of beeswax, 2-4 parts of curing agent, 4-9 parts of zirconium oxide micropowder, 3-6 parts of titanium oxide micropowder and 4-7 parts of yttrium oxide micropowder.
[0016] A further improvement is that in the step 1, the ECTFE powder is an alternating copolymer of ethylene and chlorotrifluoroethylene in a ratio of 1:1, and the zirconium oxide powder, titanium oxide powder and yttrium oxide powder are 20-30 μm.
[0017] A further improvement is that in step three, montan wax, beeswax, zirconium oxide powder, titanium oxide powder and yttrium oxide powder are heated to 85-95° C., and after melting, stirred and mixed evenly to obtain a mixture.
[0018] A further improvement is that in step five, the thickness of the extruded profile is controlled to be 1-10 mm.
[0019] Further improvement lies in: in the step six, the cleaning equipment includes a sleeve rod and a sliding rod, the sliding rod is movably inserted inside the sleeve rod, and a spray ball is provided at one end of the outer side of the sliding rod, and a spray hole is provided on the spray ball, a stretch hose is inserted at the edge inside the sleeve rod, and the input end of the stretch hose is connected to the pressure pump, the input end of the pressure pump is connected to the liquid tank through a connecting pipe, the connecting pipe is provided with an opening and closing valve, a liquid collecting chamber is provided at one end inside the sliding rod, a liquid inlet channel connected to the liquid collecting chamber is provided at the edge inside the sliding rod, the liquid collecting chamber is connected to the spray ball, and the liquid inlet channel is connected to the stretch hose.
[0020] Further improvements are: a first rotating cylinder is rotatably provided at one end of the outer side of the sleeve rod, a second rotating cylinder is rotatably provided at one end of the outer side of the slide rod, a first support arm is hinged on the first rotating cylinder, and a grinding plate is hinged at one end of the first support arm, a second support arm is hinged at one end of the grinding plate, one end of the second support arm is hinged to the second rotating cylinder, a first motor is provided on the sleeve rod, and a gear is provided at the output end of the first motor, and a gear ring matching the gear is provided on the first rotating cylinder.
[0021] A further improvement is that a rotation-stop bar is provided on the slide rod, an insertion cavity matched with the slide rod and the rotation-stop bar is provided on the inner side of the sleeve rod, a screw rod is rotatably provided inside the insertion cavity, and the screw rod extends to the inside of the slide rod and is threadedly matched, and the screw rod is driven to rotate by a second motor.
[0022] A further improvement is that the interior of the liquid tank is filled with food-grade cleaning liquid, and the outer side of the grinding plate is provided with 400-mesh sandpaper.
[0023] A further improvement is that in step seven, when treating with the sodium naphthalene treatment solution, the side of the lining that does not need to be treated is covered with a self-adhesive sticker, and then the lining is soaked in the sodium naphthalene treatment solution for 1-2 minutes and then taken out. After drying, it is washed clean with acetone and the self-adhesive sticker is torn off.
[0024] The beneficial effects of the present invention are:
[0025] 1. The present invention uses PEEK and ECTFE powder as basic materials, and uses montan wax, beeswax, curing agent, zirconium oxide powder, titanium oxide powder and yttrium oxide powder as auxiliary materials. The prepared anti-sticking lining material is relatively soft, can be perforated and cut with a paper cutter, can be bent to match the metal inner wall, and has been verified to be heat-resistant, wear-resistant, corrosion-resistant, and has good anti-sticking effect and slow decay.
[0026] 2. The present invention extrude the prepared raw materials into a millimeter-thick profile lining, treat the surface with a naphthalene sodium treatment solution, and then bond it to the inner wall by chemical welding. The raw materials are injection-molded into special-shaped parts for nesting and sleeved on the protrusions. Unlike the coating, this construction method uses the anti-sticking function as an independent component, which is convenient for subsequent recycling and saves costs.
[0027] 3. The present invention utilizes a cleaning device to reach into the interior of the processing equipment to clean the inner wall, thoroughly remove oil, dirt and water, and then use sandpaper to roughen it to facilitate the subsequent installation of the lining. During cleaning, a food-grade cleaning liquid is input into the liquid collecting chamber through a stretching hose and a pressure pump, and is sprayed out from the spray hole in all directions to clean at the spray ball. During grinding, the first motor drives the gear to rotate, and cooperates with the gear ring to drive the first rotating drum to rotate, so that the grinding plate rotates, and the sandpaper on the grinding plate is used to grind the inner wall. The sliding rod is driven to move along the sleeve rod through the rotation of the screw rod, and the first arm and the second arm are pulled to rotate, so as to change the caliber of the grinding plate, thereby adapting to the grinding of the inner walls of processing equipment of different calibers. The cleaning equipment integrates cleaning and grinding in one, and is adapted to different processing equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 A schematic diagram of tobacco processing equipment according to the present invention;
[0029] Figure 2 A schematic diagram of a cleaning device of the present invention;
[0030] Figure 3 It is a schematic diagram of the installation of the sleeve rod and the slide rod of the present invention.
[0031] Among them: 1. processing equipment; 2. protrusion; 3. inner wall; 4. sleeve rod; 5. sliding rod; 6. spray ball; 7. spray hole; 8. stretch hose; 9. pressure pump; 10. connecting pipe; 11. liquid tank; 12. opening and closing valve; 13. liquid collecting chamber; 14. liquid inlet channel; 15. first rotating drum; 16. second rotating drum; 17. first support arm; 18. grinding plate; 19. second support arm; 20. first motor; 21. gear; 22. gear ring; 23. anti-rotation strip; 24. screw rod; 25. second motor. DETAILED DESCRIPTION
[0032] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.
[0033] Embodiment 1
[0034] according to Figure 1 , 2 As shown, this embodiment proposes a method for preventing the inner wall of tobacco processing equipment from sticking with food-grade lining, comprising the following steps:
[0035] Step 1: Prepare the raw materials according to the following mass ratio: 40 parts of PEEK polyetheretherketone, 5 parts of ECTFE powder, 3 parts of montan wax, 5 parts of beeswax, 2 parts of curing agent, 4 parts of zirconium oxide powder, 3 parts of titanium oxide powder and 4 parts of yttrium oxide powder; ECTFE powder is an alternating copolymer of ethylene and chlorotrifluoroethylene in a ratio of 1:1, and the zirconium oxide powder, titanium oxide powder and yttrium oxide powder are 25 μm; the prepared anti-sticking lining material is relatively soft, can be pierced and cut with a paper cutter, can be bent to match the metal inner wall, and has been verified to be heat-resistant, wear-resistant, corrosion-resistant, and has good anti-sticking effect and slow decay;
[0036] Step 2: PEEK and ECTFE powders are put into a mixing device and stirred to obtain a matrix;
[0037] Step 3: Put montan wax and beeswax into a pulverizer and grind them into powder, then add zirconium oxide powder, titanium oxide powder and yttrium oxide powder into the powder, heat to 90° C., stir and mix evenly after melting to obtain a mixture;
[0038] Step 4: Add the mixed powder into the matrix, stir, add the curing agent, stir evenly, and mix into the raw material;
[0039] Step 5: Extruding part of the raw material into a profile with a thickness of 10 mm, and then injection molding another part of the raw material into a special-shaped part for nesting according to the shape of the protrusion 2 inside the processing equipment 1;
[0040] Step 6: On-site construction, use cleaning equipment to clean the inner wall 3 of the processing equipment 1 with a cleaning liquid, thoroughly remove oil, dirt and water, and then use sandpaper to roughen it;
[0041] Step 7: Cut the flat profile into a lining suitable for the inner wall 3, use a naphthalene sodium treatment liquid to treat the surface of the lining that needs to be fixed to the inner wall 3, and during the treatment, cover the side of the lining that does not need to be treated with a self-adhesive sticker, then soak the lining in the naphthalene sodium treatment liquid for 2 minutes and take it out, dry it, wash it with acetone, and tear off the self-adhesive sticker;
[0042] Step 8: Use chemical welding to weld the lining to the inner wall 3 of the processing equipment 1, and then nest the special-shaped part on the protrusion 2. This construction method uses the anti-sticking function as an independent component, which is convenient for subsequent recycling and saves costs.
[0043] Embodiment 2
[0044] according to Figure 1 , 2 As shown, this embodiment proposes a method for preventing the inner wall of tobacco processing equipment from sticking with food-grade lining, comprising the following steps:
[0045] Step 1: Prepare the raw materials according to the following mass ratio: 50 parts of PEEK polyetheretherketone, 10 parts of ECTFE powder, 10 parts of montan wax, 8 parts of beeswax, 3 parts of curing agent, 5 parts of zirconium oxide micropowder, 5 parts of titanium oxide micropowder and 5 parts of yttrium oxide micropowder; ECTFE powder is an alternating copolymer of ethylene and chlorotrifluoroethylene in a ratio of 1:1, and the zirconium oxide micropowder, titanium oxide micropowder and yttrium oxide micropowder are 25μm; the prepared anti-stick lining material is relatively soft, can be pierced and cut with a paper cutter, can be bent to match the metal inner wall, and has been verified to be heat-resistant, wear-resistant, corrosion-resistant, and has good anti-sticking effect and slow decay;
[0046] Step 2: PEEK and ECTFE powders are put into a mixing device and stirred to obtain a matrix;
[0047] Step 3: Put montan wax and beeswax into a pulverizer and grind them into powder, then add zirconium oxide powder, titanium oxide powder and yttrium oxide powder into the powder, heat to 90° C., stir and mix evenly after melting to obtain a mixture;
[0048] Step 4: Add the mixed powder into the matrix, stir, add the curing agent, stir evenly, and mix into the raw material;
[0049] Step 5: Extruding part of the raw material into a profile with a thickness of 6 mm, and then injection molding another part of the raw material into a special-shaped part for nesting according to the shape of the protrusion 2 inside the processing equipment 1;
[0050] Step 6: On-site construction, use cleaning equipment to clean the inner wall 3 of the processing equipment 1 with a cleaning liquid, thoroughly remove oil, dirt and water, and then use sandpaper to roughen it;
[0051] Step 7: Cut the flat profile into a lining suitable for the inner wall 3, use a naphthalene sodium treatment liquid to treat the surface of the lining that needs to be fixed to the inner wall 3, and during the treatment, cover the side of the lining that does not need to be treated with a self-adhesive sticker, then soak the lining in the naphthalene sodium treatment liquid for 1 minute and take it out, dry it, wash it with acetone, and tear off the self-adhesive sticker;
[0052] Step 8: Use chemical welding to weld the flat profile to the inner wall 3 of the processing equipment 1, and then nest the special-shaped part on the protrusion 2. This construction method uses the anti-sticking function as an independent component, which is convenient for subsequent recycling and saves costs.
[0053] Embodiment 3
[0054] according to Figure 1 , 2 As shown, this embodiment proposes a method for preventing the inner wall of tobacco processing equipment from sticking with food-grade lining, comprising the following steps:
[0055] Step 1: Prepare the raw materials according to the following mass ratio: 70 parts of PEEK polyetheretherketone, 15 parts of ECTFE powder, 13 parts of montan wax, 10 parts of beeswax, 4 parts of curing agent, 9 parts of zirconium oxide powder, 6 parts of titanium oxide powder and 7 parts of yttrium oxide powder; ECTFE powder is an alternating copolymer of ethylene and chlorotrifluoroethylene in a ratio of 1:1, and the zirconium oxide powder, titanium oxide powder and yttrium oxide powder are 25 μm; the prepared anti-sticking lining material is relatively soft, can be pierced and cut with a paper cutter, can be bent to match the metal inner wall, and has been verified to be heat-resistant, wear-resistant, corrosion-resistant, and has good anti-sticking effect and slow decay;
[0056] Step 2: PEEK and ECTFE powders are put into a mixing device and stirred to obtain a matrix;
[0057] Step 3: Put montan wax and beeswax into a pulverizer and grind them into powder, then add zirconium oxide powder, titanium oxide powder and yttrium oxide powder into the powder, heat to 90° C., stir and mix evenly after melting to obtain a mixture;
[0058] Step 4: Add the mixed powder into the matrix, stir, add the curing agent, stir evenly, and mix into the raw material;
[0059] Step 5: Extruding part of the raw material into a profile with a thickness of 3 mm, and then injection molding another part of the raw material into a special-shaped part for nesting according to the shape of the protrusion 2 inside the processing equipment 1;
[0060] Step 6: On-site construction, use cleaning equipment to clean the inner wall 3 of the processing equipment 1 with a cleaning liquid, thoroughly remove oil, dirt and water, and then use sandpaper to roughen it;
[0061] Step 7: Cut the flat profile into a lining suitable for the inner wall 3, use a naphthalene sodium treatment liquid to treat the surface of the lining that needs to be fixed to the inner wall 3, and during the treatment, cover the side of the lining that does not need to be treated with a self-adhesive sticker, then soak the lining in the naphthalene sodium treatment liquid for 1 minute and take it out, dry it, wash it with acetone, and tear off the self-adhesive sticker;
[0062] Step 8: Use chemical welding to weld the flat profile to the inner wall 3 of the processing equipment 1, and then nest the special-shaped part on the protrusion 2. This construction method uses the anti-sticking function as an independent component, which is convenient for subsequent recycling and saves costs.
[0063] Experimental example:
[0064]
[0065]
[0066] According to Example 1, Example 2 and Example 3, it can be concluded that the lining prepared by the present invention through the following mass ratio components: PEEK polyetheretherketone 40-70 parts, ECTFE powder 5-15 parts, montan wax 3-13 parts, beeswax 5-10 parts, curing agent 2-4 parts, zirconium oxide micropowder 4-9 parts, titanium oxide micropowder 3-6 parts and yttrium oxide micropowder 4-7 parts has low surface tension, anti-sticking effect, heat resistance, wear resistance, corrosion resistance and slow decay.
[0067] Embodiment 4
[0068] according to Figure 2 , 3 As shown, this embodiment proposes a method for preventing the inner wall of tobacco processing equipment from sticking with food-grade lining, including a cleaning device, wherein the cleaning device includes a sleeve rod 4 and a slide rod 5, the slide rod 5 is movably inserted inside the sleeve rod 4, and a spray ball 6 is provided at one end of the outer side of the slide rod 5, and a spray hole 7 is provided on the spray ball 6, a stretch hose 8 is inserted at the edge inside the sleeve rod 4, and the input end of the stretch hose 8 is connected to a pressure pump 9, and the input end of the pressure pump 9 is connected to a liquid tank 11 through a connecting pipe 10, and an opening and closing valve 12 is provided on the connecting pipe 10, a liquid collecting chamber 13 is provided at one end inside the slide rod 5, and a liquid inlet channel 14 connected to the liquid collecting chamber 13 is provided at the edge inside the slide rod 5, the liquid collecting chamber 13 is connected to the spray ball 6, and the liquid inlet channel 14 is connected to the stretch hose 8. When in use, one end of the slide rod 5 is extended into the processing equipment 1 to clean the inner wall 3, and the food-grade cleaning liquid in the liquid tank 11 is input into the liquid inlet channel 14, to the liquid collecting chamber 13, and to the spray ball 6 to be sprayed out from the spray hole 7 in all directions for cleaning by stretching the hose 8 and cooperating with the pressure pump 9.
[0069] A first rotating cylinder 15 is rotatably provided at one end of the outer side of the sleeve rod 4, a second rotating cylinder 16 is rotatably provided at one end of the outer side of the slide bar 5, a first arm 17 is hinged on the first rotating cylinder 15, and a grinding plate 18 is hinged on one end of the first arm 17, a second arm 19 is hinged on one end of the grinding plate 18, and one end of the second arm 19 is hinged to the second rotating cylinder 16, a first motor 20 is provided on the sleeve rod 4, and a gear 21 is provided at the output end of the first motor 20, and a gear ring 22 matched with the gear 21 is provided on the first rotating cylinder 15. A stop bar 23 is provided on the slide bar 5, and an insertion cavity matched with the slide bar 5 and the stop bar 23 is provided on the inner side of the sleeve rod 4, a screw rod 24 is rotatably provided inside the insertion cavity, and the screw rod 24 extends to the inside of the slide bar 5 and is threadedly adapted, and the screw rod 24 is driven to rotate by the second motor 25. When in use, the first motor 20 drives the gear 21 to rotate, and cooperates with the ring gear 22 to drive the first rotating drum 15 to rotate, so that the grinding plate 18 and the second rotating drum 16 rotate, and the 400-mesh sandpaper on the grinding plate 18 is used to grind the inner wall 3. The second motor 25 drives the screw rod 24 to rotate, and cooperates with the anti-rotation strip 23 to drive the slide rod 5 to move along the sleeve rod 4, pulling the first arm 17 and the second arm 19 to rotate, thereby changing the caliber of the grinding plate 18, thereby adapting to the grinding of the inner wall 3 of processing equipment 1 with different calibers.
[0070] The liquid tank 11 is filled with food-grade cleaning liquid, which is safer and more hygienic. The outer side of the grinding plate 18 is provided with 400-mesh sandpaper, which has a better effect of grinding the rough surface.
[0071] The present invention uses PEEK (polyetheretherketone) and ECTFE (1:1 alternating copolymer of ethylene and chlorotrifluoroethylene) powder as basic materials, and uses montan wax, beeswax, curing agent, zirconium oxide powder, titanium oxide powder and yttrium oxide powder as auxiliary materials. The prepared anti-sticking lining material is relatively soft, can be opened and cut with a paper cutter, can be bent to match the metal inner wall, and has been verified to be heat-resistant, wear-resistant, corrosion-resistant, and has good anti-sticking effect and slow decay. At the same time, the present invention uses a 10 mm thick profile lining formed by extruding the prepared raw material, treats the surface with a naphthalene sodium treatment solution, and then uses chemical welding to bond it to the inner wall 3, and injection molds the raw material into a special-shaped piece nested and sleeved on the protrusion 2. Unlike the coating, this construction method uses the anti-sticking function as an independent component, which is convenient for subsequent recycling and saves costs. In addition, the present invention uses a cleaning device to reach into the interior of the processing equipment 1 to clean the inner wall 3, thoroughly remove oil, dirt and water, and then use sandpaper to roughen it to facilitate the subsequent installation of the lining. During cleaning, the food-grade cleaning liquid is input into the liquid collecting chamber 13 through the stretching hose 8 and the pressure pump 9, and is sprayed out from the spray hole 7 in all directions at the spray ball 6 for cleaning. During grinding, the first motor 20 drives the gear 21 to rotate, and cooperates with the ring gear 22 to drive the first rotating drum 15 to rotate, so that the grinding plate 18 rotates, and the 400-mesh sandpaper on the grinding plate 18 is used to grind the inner wall 3. The screw rod 24 is rotated to drive the slide rod 5 to move along the sleeve rod 4, pulling the first arm 17 and the second arm 19 to rotate, changing the caliber of the grinding plate 18, thereby adapting to the grinding of the inner wall 3 of the processing equipment 1 of different calibers. The cleaning equipment integrates cleaning and grinding in one, and is adapted to different processing equipment 1.
[0072] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A method for preventing the inner wall of tobacco processing equipment from sticking with food-grade lining, characterized in that: The following steps are involved: Step 1: Prepare materials: PEEK polyetheretherketone, ECTFE powder, montan wax, beeswax, curing agent, zirconium oxide powder, titanium oxide powder and yttrium oxide powder; Step 2: PEEK and ECTFE powders are put into a mixing device and stirred to obtain a matrix; Step 3: Put montan wax and beeswax into a pulverizer and grind them into powder, then add zirconium oxide powder, titanium oxide powder and yttrium oxide powder into the powder to obtain a mixture; Step 4: Add the mixed powder into the matrix, stir, add the curing agent, stir evenly, and mix into the raw material; Step 5: Extruding part of the raw material into a flat profile; then injection molding another part of the raw material into a special-shaped part for nesting according to the shape of the protrusion (2) inside the processing equipment (1); Step 6: On-site construction, use cleaning equipment to clean the inner wall (3) of the processing equipment (1) with cleaning liquid, thoroughly remove oil, dirt and water, and then use sandpaper to roughen it; Step 7: Cut the flat profile into a lining suitable for the inner wall (3), and use a naphthalene sodium treatment liquid to treat the surface of the lining that needs to be fixed to the inner wall (3); Step 8: Using chemical welding to weld the flat profile to the inner wall (3) of the processing equipment (1), and then nesting the special-shaped part on the protrusion (2); In the step 1, the raw materials are prepared according to the following mass ratio: 40-70 parts of PEEK polyetheretherketone, 5-15 parts of ECTFE powder, 3-13 parts of montan wax, 5-10 parts of beeswax, 2-4 parts of curing agent, 4-9 parts of zirconium oxide powder, 3-6 parts of titanium oxide powder and 4-7 parts of yttrium oxide powder; In the step 1, the ECTFE powder is an alternating copolymer of ethylene and chlorotrifluoroethylene in a molar ratio of 1:1, and the zirconium oxide powder, titanium oxide powder and yttrium oxide powder are 20-30 μm.
2. The method according to claim 1, characterized in that: The processing equipment includes a vibrating conveyor, a steel spice tank, a stirring paddle, a material discharge hopper, a dust and moisture exhaust hood, a storage cabinet, a roller type processing equipment, a moisture exhaust pipe, a dust removal pipe and a dust removal fan, a turnover box, and a glue cylinder.
3. The method according to claim 1, characterized in that: In the step 5, the thickness of the extruded planar profile is controlled to be 1-10 mm.
4. The method according to claim 1, characterized in that: In the step six, the cleaning device comprises a sleeve rod (4) and a slide rod (5), the slide rod (5) being movably inserted inside the sleeve rod (4), and a spray ball (6) being provided at one end outside the slide rod (5), and a spray hole (7) being provided on the spray ball (6), a stretch hose (8) being inserted at the edge inside the sleeve rod (4), and an input end of the stretch hose (8) being connected to a pressure pump (9), and an input end of the pressure pump (9) being connected to a liquid tank (11) via a connecting pipe (10), and an opening and closing valve (12) being provided on the connecting pipe (10), a liquid collecting chamber (13) being provided at one end inside the slide rod (5), and a liquid inlet channel (14) being connected to the liquid collecting chamber (13) being provided at the edge inside the slide rod (5), the liquid collecting chamber (13) being connected to the spray ball (6), and the liquid inlet channel (14) being connected to the stretch hose (8).
5. The method according to claim 4, characterized in that: A first rotating cylinder (15) is rotatably provided at one end of the outer side of the sleeve rod (4), and a second rotating cylinder (16) is rotatably provided at one end of the outer side of the slide rod (5). A first support arm (17) is hingedly connected to the first rotating cylinder (15), and a grinding plate (18) is hingedly connected to one end of the first support arm (17). A second support arm (19) is hingedly connected to one end of the grinding plate (18), and one end of the second support arm (19) is hingedly connected to the second rotating cylinder (16). A first motor (20) is provided on the sleeve rod (4), and a gear (21) is provided at the output end of the first motor (20). A gear ring (22) matching the gear (21) is provided on the first rotating cylinder (15).
6. The method according to claim 5, characterized in that: The slide bar (5) is provided with a rotation-stopping strip (23); the inner side of the sleeve rod (4) is provided with an insertion cavity matched with the slide bar (5) and the rotation-stopping strip (23); a screw rod (24) is rotatably provided inside the insertion cavity, and the screw rod (24) extends into the interior of the slide bar (5) and is threadably matched; the screw rod (24) is driven to rotate by a second motor (25).
7. The method according to claim 6, characterized in that: The liquid tank (11) is filled with food-grade cleaning liquid, and the outer side of the grinding plate (18) is provided with 400-grit sandpaper.
8. The method according to claim 1, characterized in that: In the step 7, when the lining is treated with the sodium naphthalene treatment solution, the side of the lining that does not need to be treated is covered with a self-adhesive sticker, and then the lining is soaked in the sodium naphthalene treatment solution for 1-2 minutes and then taken out. After drying, it is washed with acetone and the self-adhesive sticker is torn off.
Citation Information
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