Preparation method of composite thermal material

Abstract

The application belongs to the field of warm-keeping materials, and particularly relates to a preparation method of a composite warm-keeping material, which comprises the following steps: S1, impurity separation; S2, sorting and polishing; S3, glue solution stirring; S4, hot-pressing forming; and S5, post-processing; wherein the cotton straw wood layer impurity separation machine comprises a support and a separation mechanism installed above the support, and the separation mechanism comprises a crushing assembly, a screening assembly and a separation assembly. The preparation device adopts a brand-new process and equipment, so that the preparation efficiency of the warm-keeping material is higher, impurity removal is more thorough, the degree of automation is higher, the labor cost is lower, and the warm-keeping plate with higher quality can be prepared.

Description

Technical Field

[0001] The present invention relates to the field of thermal insulation materials, and in particular to a method for preparing a composite thermal insulation material. Background Art

[0002] Insulation boards are very commonly used building components. Insulation boards are often made of wood and other plant fibers. The existing preparation process of insulation boards is relatively simple, and the equipment used is also relatively simple. For example, when cotton straw is used as the main raw material, impurities must be separated and removed from the cotton straw. The main components of cotton straw are cellulose and lignin. The existing wood layer impurity separator requires manual operation of different steps of the material. Therefore, the use process is relatively complicated and requires a lot of manpower. It is not convenient to remove the impurities in the wood layer of cotton straw in a smooth step. It is necessary to develop a new functional composite thermal insulation material preparation method. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] Therefore, the technical problem to be solved by the present invention is that the wood layer impurity separator in the existing technology requires manual operation of different steps of the material, so the use process is relatively complicated and requires a lot of manpower, which is not convenient for the smooth removal of wood layer impurities in cotton straw.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a method for preparing a composite thermal insulation material, comprising the following steps:

[0006] S1, impurity separation, using a cotton straw wood layer impurity separator to separate impurities from cotton straw;

[0007] S2, sorting and grinding, the cotton straw is sorted and then ground using a grinding machine;

[0008] S3, stirring the glue solution, adding formaldehyde-free adhesive to the polished cotton straw and stirring evenly;

[0009] S4, hot pressing, using a flat pressing machine to continuously press to form a composite thermal insulation board;

[0010] S5, post-processing;

[0011] The cotton straw wood layer impurity separator comprises a bracket and a separation mechanism installed above the bracket, wherein the separation mechanism comprises a crushing assembly;

[0012] Furthermore, the post-processing step includes surface treatment, edge sealing treatment and hair planting treatment of the composite thermal insulation board;

[0013] The crushing assembly includes a crushing cylinder, the top of the bracket is fixed to the crushing cylinder, the top of the crushing cylinder is fixed to the first motor, the output end of the first motor is equipped with a central rotating shaft, the side array of the central rotating shaft is equipped with crushing knives, the inner wall array of the crushing cylinder is equipped with inclined wall knives, the lower part of the inner wall of the crushing cylinder is provided with an inner groove, the lower part of the crushing cylinder is provided with a discharge port, the bottom of the crushing cylinder is fixed to the air duct, the left side of the air duct is provided with an air inlet, the left side of the air inlet is provided with a hood, the right side of the air duct is provided with a debris port, the interior of the debris port is equipped with fan blades, the fan blades are driven by the second motor on the right, and the lower left side of the air duct is provided with a discharge port.

[0014] A support is installed on the left side of the bracket, a spring is fixedly installed on the top of the support, the top of the spring is fixed to the top seat, the rear of the top seat is fixed to the base, the rear of the base is fixed to the screen, a slag bucket is installed at the bottom of the screen, a third motor is installed in the middle of the support, a driving wheel is installed at the output end of the third motor, the side of the driving wheel is fixed to the driving belt, the other side of the driving belt is connected to the driven wheel, an eccentric wheel is installed at the rear of the driving belt, the other end of the driven wheel is fixed to the pillar, and the left side of the base is installed A dissolving barrel is provided, a card slot is provided on the top of the dissolving barrel, a lifting net is installed inside the dissolving barrel, a buckle is installed on the top array of the lifting net, a central column is fixedly installed at the center position of the lifting net, the top of the central column and the lifting buckle are fixed to each other, a hinge is fixedly installed at the rear of the dissolving barrel, a top cover is fixedly installed on the top of the hinge, a probe is fixedly installed inside the top cover, a stirring rod is fixedly installed on the side of the probe, the top of the stirring rod and the top rotating shaft are fixed to each other, the top rotating shaft is driven by the fourth motor at the top, and a liquid outlet is provided at the lower left of the dissolving barrel.

[0015] Preferably, the bracket and the support are connected by a conveyor belt, transmission wheels are installed at both ends of the conveyor belt, baffles are installed on the surface array of the conveyor belt, and side plates are fixedly installed on the front and rear sides of the conveyor belt.

[0016] Preferably, the crushing knives form a rotating structure between the central rotating shaft and the crushing cylinder, the crushing knives are distributed in an array on the outer wall of the central rotating shaft, the inclined wall knives are distributed in an array on the inner wall of the crushing knives, and the inclined wall knives are distributed obliquely with respect to the crushing cylinder.

[0017] Preferably, the debris outlet forms a flow structure between the air duct and the air inlet, the hood opening and the air inlet are detachably connected, and the fan blades form a rotation structure between the second motor and the debris outlet.

[0018] Preferably, the baffles are distributed in an array on the outer wall of the conveyor belt, and the conveyor belt forms a rotating structure through a transmission wheel.

[0019] Preferably, the driven wheel forms a transmission structure with the third motor through the cooperation between the driving belt and the driving wheel, and the eccentric wheel forms a rotating structure through the driven wheel.

[0020] Preferably, the base forms a vibration structure through the eccentric wheel and the support, and the base forms an elastic structure through the springs and the support, and four groups of springs are symmetrically arranged on the sides of the base.

[0021] Preferably, the lifting net forms a detachable structure with the dissolving barrel through the cooperation between the buckle and the slot, and the lifting net is a hollow structure.

[0022] Preferably, the stirring rod forms a rotating structure through the top rotating shaft and the top cover, the stirring rod is a spiral structure, and the center of the stirring rod coincides with the center of the lifting net.

[0023] The present invention has the following beneficial effects:

[0024] 1. The preparation device adopts a brand-new process and equipment, which makes the preparation efficiency of thermal insulation materials higher, the impurity removal more thorough, the degree of automation higher, the labor cost lower, and can produce higher-quality thermal insulation boards. During the use of the separator, the first motor drives the central shaft to rotate inside the device. The central shaft and the crushing knife are fixed to each other, so the crushing knife will be driven by the central shaft to rotate inside the device. The cotton straw is poured into the crushing cylinder through the feed port. At this time, the crushing knife rotates to crush the cotton straw. During the crushing process, the inclined wall knife installed obliquely on the inner wall of the crushing cylinder can cooperate with the crushing knife to crush the cotton straw. At the same time, the inclined inclined wall knife can also place the cotton straw on the top of the inclined wall knife to affect the subsequent crushing. The crushed straw then falls into the inside of the air duct through the discharge port for sorting of debris.

[0025] 2. During the use of the present invention, the material transmitted by the conveyor belt enters the interior of the screen, and the third motor drives the driving wheel to rotate. When the driving wheel rotates, it drives the driven wheel to rotate inside the device through the driving belt. When the driven wheel rotates, it drives the eccentric wheel at the rear to rotate. Since the center of the eccentric wheel and the center of the driven wheel do not coincide with each other, the eccentric wheel will generate eccentric force when rotating to drive the base to vibrate. When the base vibrates, it will transmit the material on the surface of the screen and will also be screened through the internal pores to screen the impurities in the cotton straw into the slag bucket. The slag bucket is inclined, which is also convenient for the slag bucket to discharge the impurities under the screen out of the device.

[0026] 3. During the use of the present invention, the material transmitted from the screen through the conveyor belt can be placed inside the lifting net, and then the material is loaded inside the lifting net. The chemical solution is filled inside the dissolving barrel to dissolve the impurities in the cotton straw. After the dissolution, the material and the solution in the cotton straw are separated by the lifting net. The lifting net can be lifted and taken out through the lifting buckle on the top of the central column in the middle, which is convenient for separating the liquid from the solid. During use, the lifting net is installed in the card slot opened on the top of the dissolving barrel through the buckle on the top to prevent the lifting net from shifting inside the device and affecting the use of the device.

[0027] 4. During the use of the present invention, the crushing component, screening component and separation component cooperate with each other, and the material is transported between them through a conveyor belt, which saves time and labor and can also avoid the use of a large amount of manpower. At the same time, the physical screening and chemical decomposition cooperate with each other, so that the impurities in the material are removed more cleanly and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0029] Figure 1 This is an overall schematic diagram of the separator in the method for preparing the composite thermal insulation material provided by the present invention.

[0030] Figure 2 This is a schematic diagram of the crushing component structure of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0031] Figure 3 This is a schematic cross-sectional structural diagram of the crushing component of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0032] Figure 4This is a schematic diagram of the internal structure of the crushing component of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0033] Figure 5 This is a schematic diagram of the conveyor belt structure of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0034] Figure 6 This is a schematic structural diagram of the screening component of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0035] Figure 7 It is a schematic diagram of the transverse cross-sectional structure of the screening component of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0036] Figure 8 It is a schematic diagram of the longitudinal cross-sectional structure of the screening component of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0037] Figure 9 This is a schematic diagram of the separation component structure of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0038] Figure 10 It is a schematic cross-sectional structural diagram of the separation component of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0039] Figure 11 This is a schematic diagram of the net lifting installation structure of the separator in the method for preparing the composite thermal insulation material of the present invention.

[0040] Figure 12 The present invention is a flow chart of the method for preparing the composite thermal insulation material.

[0041] Figure: 1, bracket; 2, crushing cylinder; 3, first motor; 4, central shaft; 5, crushing knife; 6, inclined wall knife; 7, inner groove; 8, feed port; 9, discharge port; 10, air duct; 11, air inlet; 12, hood; 13, debris port; 14, fan blade; 15, second motor; 16, discharge port; 17, transmission wheel; 18, conveyor belt; 19, baffle; 20, side plate; 21, support; 22, spring; 23, top seat ; 24. Base; 25. Screen; 26. Slag hopper; 27. Third motor; 28. Driving wheel; 29. ​​Driving belt; 30. Driven wheel; 31. Eccentric wheel; 32. Pillar; 33. Dissolving barrel; 34. Slot; 35. Lifting net; 36. Buckle; 37. Center column; 38. Lifting buckle; 39. Liquid outlet; 40. Hinge; 41. Top cover; 42. Probe; 43. Stirring rod; 44. Top shaft; 45. Fourth motor. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0043] Please refer to Figures 1-12 This embodiment provides a method for preparing a composite thermal insulation material, comprising the following steps:

[0044] S1, impurity separation, using a cotton straw wood layer impurity separator to separate impurities from cotton straw;

[0045] S2, sorting and grinding, the cotton straw is sorted and then ground using a grinding machine;

[0046] S3, stirring the glue solution, adding formaldehyde-free adhesive to the polished cotton straw and stirring evenly;

[0047] S4, hot pressing, using a flat pressing machine to continuously press to form a composite thermal insulation board;

[0048] S5, post-processing;

[0049] The cotton straw wood layer impurity separator comprises a bracket 1 and a separation mechanism installed above the bracket 1, wherein the separation mechanism comprises a crushing component;

[0050] Among them, the post-processing steps include surface treatment, edge sealing and hair planting of the composite thermal insulation board; specifically:

[0051] 1. Surface treatment: After the thermal insulation board is veneered, it needs to undergo certain surface treatments, such as grinding and polishing, to ensure the quality and smoothness of the veneer. At the same time, regular cleaning and maintenance are also required to extend the service life of the veneer.

[0052] 2. Edge banding: After veneer treatment, the edges of the insulation board are susceptible to moisture and deformation. Therefore, after veneer treatment is completed, edge banding is required to enhance the stability of the insulation board and extend its service life. Suitable materials for edge banding include wear-resistant and moisture-resistant materials such as PVC and acrylic.

[0053] 3. Plug treatment: After edge banding, you can also do plug treatment to make the edge of the thermal insulation board smoother and more beautiful. The plug materials can be velvet, felt, etc.

[0054] The crushing assembly includes a crushing cylinder 2, the top of the bracket 1 and the crushing cylinder 2 are fixed to each other, the top of the crushing cylinder 2 and the first motor 3 are fixed to each other, the output end of the first motor 3 is equipped with a central rotating shaft 4, the side array of the central rotating shaft 4 is equipped with a crushing knife 5, the inner wall array of the crushing cylinder 2 is equipped with an inclined wall knife 6, the lower part of the inner wall of the crushing cylinder 2 is provided with an inner groove 7, the lower part of the inner wall of the crushing cylinder 2 is provided with a discharge port 9, the bottom of the crushing cylinder 2 is fixed to the air duct 10, the left side of the air duct 10 is provided with an air inlet 11, the left side of the air inlet 11 is provided with a hood port 12, the right side of the air duct 10 is provided with a debris port 13, the interior of the debris port 13 is equipped with a fan blade 14, the fan blade 14 is driven by the second motor 15 on the right, and the lower left of the air duct 10 is provided with a discharge port 16.

[0055] A support 21 is installed on the left side of the bracket 1, and a spring 22 is fixedly installed on the top of the support 21. The top of the spring 22 is fixed to the top seat 23, the rear of the top seat 23 is fixed to the base 24, the rear of the base 24 is fixed to the screen 25, and a slag bucket 26 is installed at the bottom of the screen 25. A third motor 27 is installed in the middle of the support 21, and a driving wheel 28 is installed at the output end of the third motor 27. The side of the driving wheel 28 is fixed to the driving belt 29, and the other side of the driving belt 29 is connected to the driven wheel 30. An eccentric wheel 31 is installed at the rear of the driving belt 29, and the other end of the driven wheel 30 is fixed to the pillar 32. The left side of the base 24 is installed The dissolving barrel 33 has a card slot 34 on the top thereof, a lifting net 35 is installed inside the dissolving barrel 33, a buckle 36 is installed on the top array of the lifting net 35, a center column 37 is fixedly installed at the center position of the lifting net 35, the top of the center column 37 and the lifting buckle 38 are fixed to each other, a hinge 40 is fixedly installed at the rear of the dissolving barrel 33, a top cover 41 is fixedly installed on the top of the hinge 40, a probe 42 is fixedly installed inside the top cover 41, a stirring rod 43 is fixedly installed on the side of the probe 42, the top of the stirring rod 43 and the top rotating shaft 44 are fixed to each other, the top rotating shaft 44 is driven by the fourth motor 45 at the top, and a liquid outlet 39 is provided at the lower left of the dissolving barrel 33.

[0056] Furthermore, the bracket 1 and the support 21 are connected by a conveyor belt 18, and transmission wheels 17 are installed at both ends of the conveyor belt 18. The surface array of the conveyor belt 18 is installed with a baffle 19, and the front and rear sides of the conveyor belt 18 are fixedly installed with side plates 20.

[0057] Furthermore, baffles 19 are distributed in an array on the outer wall of the conveyor belt 18, and the conveyor belt 18 forms a rotating structure through the transmission wheel 17. During use, the screened cotton straw material discharged through the discharge port 16 enters the surface of the conveyor belt 18, and is then transported to the top of the screen 25 through the conveyor belt 18 for screening. Baffles 19 are installed in an array on the surface of the conveyor belt 18. The baffles 19 can effectively grasp and transfer items, making the movement of the material on the conveyor belt 18 more stable, and at the same time preventing the material from sliding during the transmission process, ensuring that the material can be transmitted according to the predetermined route and speed, and then proceed to the next step of screening.

[0058] Furthermore, the crushing knife 5 forms a rotating structure between the central rotating shaft 4 and the crushing cylinder 2. The crushing knife 5 is distributed in an array on the outer wall of the central rotating shaft 4, and the inclined wall knife 6 is distributed in an array on the inner wall of the crushing knife 5. The inclined wall knife 6 and the crushing cylinder 2 are obliquely distributed. During use, the first motor 3 drives the central rotating shaft 4 to rotate inside the device. The central rotating shaft 4 and the crushing knife 5 are fixed to each other, so the crushing knife 5 will be driven by the central rotating shaft 4 to rotate inside the device, and the cotton straw is poured into the interior of the crushing cylinder 2 through the feed port 8. At this time, the crushing knife 5 can rotate to crush the cotton straw. During the crushing process, the inclined wall knife 6 installed obliquely on the inner wall of the crushing cylinder 2 can cooperate with the crushing knife 5 to crush the cotton straw. At the same time, the inclined inclined wall knife 6 can also place the cotton straw on the top of the inclined wall knife 6 to affect subsequent crushing, and then the crushed straw falls into the interior of the wind tube 10 through the discharge port 9 for sorting of debris.

[0059] Furthermore, the debris outlet 13 forms a circulation structure between the wind tube 10 and the air inlet 11, the hood opening 12 and the air inlet 11 are detachably connected, and the fan blades 14 form a rotating structure between the second motor 15 and the debris outlet 13. The cotton straw falling into the wind tube 10 through the discharge port 9 will be sorted by the second motor 15, and the fan blades 14 drive the second motor 15 to rotate. The fan blades 14 will generate negative pressure when rotating, which can blow the lighter material impurities passing through the inside of the wind tube 10 out of the device, preliminarily improve the purity of the straw, and discharge the light and fine impurities in the cotton straw out of the device to avoid contaminating the wood layer of the cotton straw.

[0060] Furthermore, the driven wheel 30 forms a transmission structure with the third motor 27 through the cooperation between the driving belt 29 and the driving wheel 28, and the eccentric wheel 31 forms a rotating structure through the driven wheel 30. The material transmitted by the conveyor belt 18 enters the interior of the screen 25, and the third motor 27 drives the driving wheel 28 to rotate. When the driving wheel 28 rotates, it will drive the driven wheel 30 to rotate inside the device through the driving belt 29. When the driven wheel 30 rotates, it drives the rear eccentric wheel 31 to rotate. Since the center of the eccentric wheel 31 does not coincide with the center of the driven wheel 30, the eccentric wheel 31 will generate an eccentric force when rotating to drive the base 24 to vibrate. When the base 24 vibrates, it will transmit the material on the surface of the screen 25 while also screening it through the internal pores, screening the impurities in the cotton straw into the slag bucket 26, and the slag bucket 26 is inclined, which is also convenient for the slag bucket 26 to discharge the impurities left by the screen 25 out of the device.

[0061] Furthermore, the base 24 forms a vibration structure with the support 21 through the eccentric wheel 31, and the base 24 forms an elastic structure with the support 21 through the spring 22. Four groups of springs 22 are symmetrically arranged on the sides of the base 24. When the base 24 vibrates, it is connected to the support 21 through the spring 22 to reduce the vibration of the base 24 caused by the impact force and protect the equipment from damage. At the same time, it also serves as a buffer device between the base 24 and the support 21, bearing the tasks of gravity and bouncing, and protecting the base 24 from damage during the material screening process.

[0062] Furthermore, the lifting net 35 forms a detachable structure with the dissolving barrel 33 through the cooperation between the buckle 36 and the slot 34. The lifting net 35 has a hollow structure. During use, the material transmitted from the screen 25 through the conveyor belt 18 can be placed inside the lifting net 35, and then the material is loaded inside the lifting net 35. The chemical solution is filled inside the dissolving barrel 33 to dissolve the impurities in the cotton straw. After the dissolution, the material and the solution in the cotton straw are separated by the lifting net 35. The lifting net 35 can be lifted and taken out through the lifting buckle 38 on the top of the central column 37 in the middle, which is convenient for separating the liquid from the solid. During use, the lifting net 35 is installed in the slot 34 opened at the top of the dissolving barrel 33 through the buckle 36 on the top to prevent the lifting net 35 from shifting inside the device and affecting the use of the device.

[0063] Furthermore, the stirring rod 43 forms a rotating structure between the top rotating shaft 44 and the top cover 41. The stirring rod 43 has a spiral structure. The center of the stirring rod 43 coincides with the center of the lifting net 35. After the top cover 41 is closed, the stirring rod 43 will also be closed synchronously. The spiral structure of the stirring rod 43 will not affect the use of the lifting net 35. Then, the stirring rod 43 is driven to rotate by the top rotating shaft 44, which can stir the material loaded inside the lifting net 35, increase the contact area between the material and the chemical solution, and improve the efficiency of the chemical treatment.

[0064] Working principle: First, pour the cotton straw into the inside of the crushing cylinder 2 through the feed port 8. At this time, the crushing knife 5 rotates to crush the cotton straw. The first motor 3 drives the central shaft 4 to rotate inside the device. The central shaft 4 and the crushing knife 5 are fixed to each other, so the crushing knife 5 will be driven by the central shaft 4 to rotate inside the device. Then, during the crushing process, the inclined wall knife 6 installed obliquely on the inner wall of the crushing cylinder 2 can cooperate with the crushing knife 5 to crush the cotton straw. At the same time, the inclined oblique wall knife 6 can also place the cotton straw on the top of the oblique wall knife 6 to affect subsequent crushing. The cotton straw that falls into the air duct 10 through the discharge port 9 will be sorted by the second motor 15. The fan blades 14 drive the second motor 15 to rotate. The fan blades 14 will generate negative pressure when rotating, which can blow the lighter material impurities passing through the inside of the air duct 10 out of the device, preliminarily improve the purity of the straw, and discharge the light and fine impurities in the cotton straw out of the device to avoid contaminating the wood layer of the cotton straw.

[0065] The sorted material is discharged through the discharge port 16 onto the surface of the conveyor belt 18, and then is conveyed to the top of the screen 25 by the conveyor belt 18 for screening. A baffle 19 is installed on the surface array of the conveyor belt 18. The baffle 19 can effectively catch and transfer items, making the movement of the material on the conveyor belt 18 more stable, and at the same time preventing the material from sliding during the transmission process, ensuring that the material can be transmitted according to the predetermined route and speed, and then proceeding to the next step of screening. The third motor 27 drives the driving wheel 28 to rotate. When the driving wheel 28 rotates, it drives the driven wheel 30 to rotate inside the device through the driving belt 29. When the driven wheel 30 rotates, it drives the eccentric wheel 31 at the rear to rotate. Due to the eccentric wheel 31 The center of the circle does not coincide with the center of the driven wheel 30, so the eccentric wheel 31 generates an eccentric force when rotating to drive the base 24 to vibrate. When the base 24 vibrates, it transmits the material on the surface of the screen 25 and screens it through the internal pores, screening the impurities in the cotton straw into the slag bucket 26. The slag bucket 26 is inclined, which also facilitates the slag bucket 26 to discharge the impurities left by the screen 25. At the same time, the base 24 is connected to the support 21 through the spring 22 when vibrating, reducing the vibration of the base 24 caused by the impact force and protecting the equipment from damage. At the same time, it also serves as a buffer device between the base 24 and the support 21, bearing the task of gravity and bouncing, and protecting the base 24 from damage during the material screening process.

[0066] Finally, the screened material enters the lifting net 35, and the chemical solution is filled in the dissolving barrel 33 to dissolve the impurities in the cotton straw. After the dissolution, the material and the solution in the cotton straw are separated by the lifting net 35. The lifting net 35 can be lifted and taken out through the lifting buckle 38 on the top of the central column 37 in the middle, which is convenient for separating the liquid from the solid. During use, the lifting net 35 is installed in the card slot 34 opened on the top of the dissolving barrel 33 through the top buckle 36 to prevent the lifting net 35 from shifting inside the device and affecting the use of the device. After the top cover 41 is closed, the stirring rod 43 will also be closed synchronously, and the spiral structure of the stirring rod 43 will not affect the use of the lifting net 35. Then the stirring rod 43 is driven to rotate by the top rotating shaft 44, which can stir the material loaded in the lifting net 35, increase the contact area between the material and the chemical solution, and improve the efficiency of the chemical treatment.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a composite thermal insulation material, characterized in that: The following steps are involved: S1, impurity separation, using a cotton straw wood layer impurity separator to separate impurities from cotton straw; S2, sorting and grinding, the cotton straw is sorted and then ground using a grinding machine; S3, stirring the glue solution, adding formaldehyde-free adhesive to the polished cotton straw and stirring evenly; S4, hot pressing, using a flat pressing machine to continuously press to form a composite thermal insulation board; S5, post-processing; The cotton straw wood layer impurity separator comprises a bracket (1) and a separation mechanism installed above the bracket (1), wherein the separation mechanism comprises a crushing assembly for crushing the cotton straw; The post-processing steps include surface treatment, edge sealing and hair planting of the composite thermal insulation board; The crushing assembly includes a crushing cylinder (2), the top of the bracket (1) and the crushing cylinder (2) are fixed to each other, the top of the crushing cylinder (2) and the first motor (3) are fixed to each other, the output end of the first motor (3) is equipped with a central rotating shaft (4), the side arrays of the central rotating shaft (4) are equipped with crushing knives (5), the inner wall arrays of the crushing cylinder (2) are equipped with inclined wall knives (6), the lower part of the inner wall of the crushing cylinder (2) is provided with an inner groove (7), and the lower part of the crushing cylinder (2) is provided with a There is a discharge port (9), the bottom of the crushing cylinder (2) and the air duct (10) are fixed to each other, an air inlet (11) is opened on the left side of the air duct (10), a cover (12) is installed on the left side of the air inlet (11), a debris opening (13) is opened on the right side of the air duct (10), a fan blade (14) is installed inside the debris opening (13), and the fan blade (14) is driven by a second motor (15) on the right side. A discharge port (16) is opened at the lower left of the air duct (10); A support (21) is installed on the left side of the bracket (1), a spring (22) is fixedly installed on the top of the support (21), the top of the spring (22) is fixed to the top seat (23), the rear of the top seat (23) is fixed to the base (24), the rear of the base (24) is fixed to the screen (25), a slag bucket (26) is installed at the bottom of the screen (25), a third motor (27) is installed in the middle of the support (21), a driving wheel (28) is installed at the output end of the third motor (27), the side of the driving wheel (28) is fixed to the driving belt (29), the other side of the driving belt (29) is connected to the driven wheel (30), an eccentric wheel (31) is installed at the rear of the driving belt (29), the other end of the driven wheel (30) is fixed to the pillar (32), and the left side of the base (24) is installed. A dissolving barrel (33) is provided, wherein a slot (34) is provided on the top of the dissolving barrel (33), a lifting net (35) is installed inside the dissolving barrel (33), a buckle (36) is installed on the top array of the lifting net (35), a central column (37) is fixedly installed at the center position of the lifting net (35), the top of the central column (37) and the lifting buckle (38) are fixed to each other, a hinge (40) is fixedly installed at the rear of the dissolving barrel (33), a top cover (41) is fixedly installed on the top of the hinge (40), a probe (42) is fixedly installed inside the top cover (41), a stirring rod (43) is fixedly installed on the side of the probe (42), the top of the stirring rod (43) and the top rotating shaft (44) are fixed to each other, and the top rotating shaft (44) is driven by a fourth motor (45) at the top, and a liquid outlet (39) is provided at the lower left of the dissolving barrel (33).

2. The method for preparing a composite thermal insulation material according to claim 1, wherein: The bracket (1) and the support (21) are connected via a conveyor belt (18), transmission wheels (17) are installed at both ends of the conveyor belt (18), baffles (19) are installed on the surface array of the conveyor belt (18), and side plates (20) are fixedly installed on the front and rear sides of the conveyor belt (18); The crushing knives (5) form a rotating structure between the central rotating shaft (4) and the crushing cylinder (2). The crushing knives (5) are distributed in an array on the outer wall of the central rotating shaft (4). The inclined wall knives (6) are distributed in an array on the inner wall of the crushing knives (5). The inclined wall knives (6) are distributed obliquely with respect to the crushing cylinder (2).

3. The method for preparing a composite thermal insulation material according to claim 2, wherein: The debris opening (13) forms a flow structure between the air duct (10) and the air inlet (11); the cover opening (12) and the air inlet (11) are detachably connected; and the fan blade (14) forms a rotation structure between the second motor (15) and the debris opening (13).

4. The method for preparing a composite thermal insulation material according to claim 3, wherein: The baffles (19) are distributed in an array on the outer wall of the conveyor belt (18), and the conveyor belt (18) forms a rotating structure through the transmission wheel (17).

5. The method for preparing a composite thermal insulation material according to claim 3, wherein: The driven wheel (30) forms a transmission structure with the third motor (27) through the cooperation between the driving belt (29) and the driving wheel (28), and the eccentric wheel (31) forms a rotation structure through the driven wheel (30).

6. The method for preparing a composite thermal insulation material according to claim 3, wherein: The base (24) forms a vibration structure through the eccentric wheel (31) and the support (21), and the base (24) forms an elastic structure through the springs (22) and the support (21), and the springs (22) are symmetrically arranged in four groups on the sides of the base (24).

7. The method for preparing a composite thermal insulation material according to claim 3, wherein: The lifting net (35) forms a detachable structure with the dissolving barrel (33) through the cooperation between the buckle (36) and the clamping groove (34), and the lifting net (35) is a hollow structure.

8. The method for preparing a composite thermal insulation material according to claim 3, wherein: The stirring rod (43) forms a rotating structure through the top rotating shaft (44) and the top cover (41). The stirring rod (43) is a spiral structure, and the center of the stirring rod (43) coincides with the center of the lifting net (35).

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