A method for preparing a new type of building material by consuming fly ash

Abstract

The invention discloses a method for preparing a plate by consuming fly ash of a novel building material. The plate prepared by consuming fly ash comprises the following raw materials: 50%-75% of fly ash, 10%-15% of quicklime, 3%-5% of plasticizer, 4%-8% of PVC resin, 2%-8% of nylon fiber and 5%-15% of asbestos fiber. The fly ash is used as a basic material to effectively increase the consumption amount and the utilization rate. A plurality of raw materials are mixed and then extruded to form strips which are then spliced ​​to form the plate. The structural strength is ensured by controlling the process conditions and the flow. The plate can be used as a filter plate for filtering after being formed, thereby adding a new function, achieving a good utilization effect and emission reduction effect, being beneficial to production and preparation, and being convenient for popularization and use.

Description

Technical Field

[0001] The invention relates to the technical field of plates, and in particular to a method for preparing plates using fly ash as a new type of building material. Background Art

[0002] In the current production process, some industries will produce a large amount of fly ash, most of which are directly piled up and buried, which not only causes great waste but also seriously pollutes the environment.

[0003] However, in some disposal methods, the waste is mostly mixed with other materials for utilization, which not only has a low utilization rate, but also has poor effects and quality. It is not possible to increase the utilization rate by preparing boards and form new functional effects at the same time. A new method needs to be proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a new method for preparing a board material by consuming fly ash.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for preparing a new type of building material plate by consuming fly ash, wherein the plate prepared by consuming fly ash comprises the following raw materials: 50%-75% fly ash, 10%-15% quicklime, 3%-5% plasticizer, 4%-8% PVC resin, 2%-8% nylon fiber and 5%-15% asbestos fiber;

[0007] The preparation method comprises the following steps:

[0008] P1. Weigh each component according to mass percentage and set aside;

[0009] P2. Put the spare fly ash into a pulverizer, pulverize it, and sieve it to obtain pulverized fly ash;

[0010] P3, add the crushed fly ash and quicklime into a mixer, and stir evenly for 20 to 30 minutes to obtain a mixed powder;

[0011] P4. Sampling and testing the mixed powder, adjusting the pH to 7.5-7.9, and obtaining alkaline powder;

[0012] P5. Put the alkaline powder into the extruder, add the plasticizer, PVC resin, nylon fiber and asbestos fiber, and add water for stirring to obtain a viscous material;

[0013] P6, extrude the viscous material through an extruder to form square strips;

[0014] P7. Cut the square strips, place them on the aluminum plate at intervals, push them into the drying room, and heat and dry them for 15 to 30 minutes to obtain dried strips;

[0015] P8. Place the drying strips on the surface of the plywood, arrange them closely to form a plate, cover it with another layer of plywood, and inject adhesive colloid to stick and position it. Let it stand to set, and the preparation of the board is completed.

[0016] Preferably, each component in P1 is in a dry state when weighed, and is dried continuously at 50 to 65 degrees Celsius for 20 to 30 minutes.

[0017] Preferably, the PVC resin is a granular material, and the particle size is 0.1 mm to 0.15 mm.

[0018] Preferably, the nylon fibers and asbestos fibers are both short fibers with a length of 5 mm to 8 mm and a diameter of 0.1 mm to 0.15 mm.

[0019] Preferably, both P2 and P3 are operated in a closed environment and are equipped with dust removal and filtering equipment.

[0020] Preferably, the sampling and testing method in P4 is to take out the powder and put it into water, and then test the pH value of the suspension after uniform stirring, and repeat the test at least three times during the stirring and mixing stage.

[0021] Preferably, the extrusion pressure in P6 is 3 MPa to 5 MPa, and the side length of the cross section of the square strip is 2.2 cm to 2.4 cm.

[0022] Preferably, the cutting length in P7 is 1.2 meters to 1.5 meters, the placement interval is 3 centimeters to 3.5 centimeters, and the drying temperature is 80 degrees Celsius to 85 degrees Celsius.

[0023] Preferably, the thickness of the plywood in P8 is 2.2 mm to 2.3 mm, and the adhesive colloid is a polypropylene resin adhesive, which is injected into the gaps between the square strips and the contact surface of the plywood.

[0024] The invention provides a method for preparing a new type of building material plate by absorbing fly ash. The fly ash is used as the basic material to effectively increase the absorption capacity and the utilization rate. A variety of raw materials are mixed and then extruded into strips which are then spliced ​​into plates. The structural strength is ensured by controlling the process conditions and the flow. After forming, the plate can be used as a filter plate for filtering, thereby adding a new function, achieving a good utilization effect and emission reduction effect, being beneficial to production and preparation, and being convenient for promotion and use. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] A method for preparing a new type of building material plate by consuming fly ash, wherein the plate prepared by consuming fly ash comprises the following raw materials: 50%-75% fly ash, 10%-15% quicklime, 3%-5% plasticizer, 4%-8% PVC resin, 2%-8% nylon fiber and 5%-15% asbestos fiber;

[0027] The preparation method comprises the following steps:

[0028] P1. Weigh each component according to mass percentage and set aside;

[0029] P2. Put the spare fly ash into a pulverizer, pulverize it, and sieve it to obtain pulverized fly ash;

[0030] P3, add the crushed fly ash and quicklime into a mixer, and stir evenly for 20 to 30 minutes to obtain a mixed powder;

[0031] P4. Sampling and testing the mixed powder, adjusting the pH to 7.5-7.9, and obtaining alkaline powder;

[0032] P5. Put the alkaline powder into the extruder, add the plasticizer, PVC resin, nylon fiber and asbestos fiber, and add water for stirring to obtain a viscous material;

[0033] P6, extrude the viscous material through an extruder to form square strips;

[0034] P7. Cut the square strips, place them on the aluminum plate at intervals, push them into the drying room, and heat and dry them for 15 to 30 minutes to obtain dried strips;

[0035] P8. Place the drying strips on the surface of the plywood, arrange them closely to form a plate, cover it with another layer of plywood, and inject adhesive colloid to stick and position it. Let it stand to set, and the preparation of the board is completed.

[0036] Preferably, each component in P1 is in a dry state when weighed, and is dried continuously at 50 to 65 degrees Celsius for 20 to 30 minutes.

[0037] Preferably, the PVC resin is a granular material, and the particle size is 0.1 mm to 0.15 mm.

[0038] Preferably, the nylon fibers and asbestos fibers are both short fibers with a length of 5 mm to 8 mm and a diameter of 0.1 mm to 0.15 mm.

[0039] Preferably, both P2 and P3 are operated in a closed environment and are equipped with dust removal and filtering equipment.

[0040] Preferably, the sampling and testing method in P4 is to take out the powder and put it into water, and then test the pH value of the suspension after uniform stirring, and repeat the test at least three times during the stirring and mixing stage.

[0041] Preferably, the extrusion pressure in P6 is 3 MPa to 5 MPa, and the side length of the cross section of the square strip is 2.2 cm to 2.4 cm.

[0042] Preferably, the cutting length in P7 is 1.2 meters to 1.5 meters, the placement interval is 3 centimeters to 3.5 centimeters, and the drying temperature is 80 degrees Celsius to 85 degrees Celsius.

[0043] Preferably, the thickness of the plywood in P8 is 2.2 mm to 2.3 mm, and the adhesive colloid is a polypropylene resin adhesive, which is injected into the gaps between the square strips and the contact surface of the plywood.

[0044] The invention provides a method for preparing a new type of building material plate by absorbing fly ash. The fly ash is used as the basic material to effectively increase the absorption capacity and the utilization rate. A variety of raw materials are mixed and then extruded into strips which are then spliced ​​into plates. The structural strength is ensured by controlling the process conditions and the flow. After forming, the plate can be used as a filter plate for filtering, thereby adding a new function, achieving a good utilization effect and emission reduction effect, being beneficial to production and preparation, and being convenient for promotion and use.

[0045] Example 1

[0046] A method for preparing a new type of building material by using fly ash, wherein the board prepared by using fly ash comprises the following raw materials: 68% fly ash, 10% quicklime, 3% plasticizer, 4% PVC resin, 5% nylon fiber and 10% asbestos fiber;

[0047] The preparation method comprises the following steps:

[0048] P1. Weigh each component according to mass percentage and set aside;

[0049] P2. Put the spare fly ash into a pulverizer, pulverize it, and sieve it to obtain pulverized fly ash;

[0050] P3, add the crushed fly ash and quicklime into a mixer, and stir evenly for 20 to 30 minutes to obtain a mixed powder;

[0051] P4. Sampling and testing the mixed powder, adjusting the pH to 7.5-7.9, and obtaining alkaline powder;

[0052] P5. Put the alkaline powder into the extruder, add the plasticizer, PVC resin, nylon fiber and asbestos fiber, and add water for stirring to obtain a viscous material;

[0053] P6, extrude the viscous material through an extruder to form square strips;

[0054] P7. Cut the square strips, place them on the aluminum plate at intervals, push them into the drying room, and heat and dry them for 15 to 30 minutes to obtain dried strips;

[0055] P8. Place the drying strips on the surface of the plywood, arrange them closely to form a plate, cover it with another layer of plywood, and inject adhesive colloid to stick and position it. Let it stand to set, and the preparation of the board is completed.

[0056] Preferably, each component in P1 is in a dry state when weighed, and is dried continuously at 50 to 65 degrees Celsius for 20 to 30 minutes.

[0057] Preferably, the PVC resin is a granular material, and the particle size is 0.1 mm to 0.15 mm.

[0058] Preferably, the nylon fibers and asbestos fibers are both short fibers with a length of 5 mm to 8 mm and a diameter of 0.1 mm to 0.15 mm.

[0059] Preferably, both P2 and P3 are operated in a closed environment and are equipped with dust removal and filtering equipment.

[0060] Preferably, the sampling and testing method in P4 is to take out the powder and put it into water, and then test the pH value of the suspension after uniform stirring, and repeat the test at least three times during the stirring and mixing stage.

[0061] Preferably, the extrusion pressure in P6 is 3 MPa to 5 MPa, and the side length of the cross section of the square strip is 2.2 cm to 2.4 cm.

[0062] Preferably, the cutting length in P7 is 1.2 meters to 1.5 meters, the placement interval is 3 centimeters to 3.5 centimeters, and the drying temperature is 80 degrees Celsius to 85 degrees Celsius.

[0063] Preferably, the thickness of the plywood in P8 is 2.2 mm to 2.3 mm, and the adhesive colloid is a polypropylene resin adhesive, which is injected into the gaps between the square strips and the contact surface of the plywood.

[0064] Example 2

[0065] A method for preparing a new type of building material by consuming fly ash, wherein the board prepared by consuming fly ash comprises the following raw materials: 65% fly ash, 12% quicklime, 5% plasticizer, 5% PVC resin, 6% nylon fiber and 7% asbestos fiber;

[0066] The preparation method comprises the following steps:

[0067] P1. Weigh each component according to mass percentage and set aside;

[0068] P2. Put the spare fly ash into a pulverizer, pulverize it, and sieve it to obtain pulverized fly ash;

[0069] P3, add the crushed fly ash and quicklime into a mixer, and stir evenly for 20 to 30 minutes to obtain a mixed powder;

[0070] P4. Sampling and testing the mixed powder, adjusting the pH to 7.5-7.9, and obtaining alkaline powder;

[0071] P5. Put the alkaline powder into the extruder, add the plasticizer, PVC resin, nylon fiber and asbestos fiber, and add water for stirring to obtain a viscous material;

[0072] P6, extrude the viscous material through an extruder to form square strips;

[0073] P7. Cut the square strips, place them on the aluminum plate at intervals, push them into the drying room, and heat and dry them for 15 to 30 minutes to obtain dried strips;

[0074] P8. Place the drying strips on the surface of the plywood, arrange them closely to form a plate, cover it with another layer of plywood, and inject adhesive colloid to stick and position it. Let it stand to set, and the preparation of the board is completed.

[0075] Preferably, each component in P1 is in a dry state when weighed, and is dried continuously at 50 to 65 degrees Celsius for 20 to 30 minutes.

[0076] Preferably, the PVC resin is a granular material, and the particle size is 0.1 mm to 0.15 mm.

[0077] Preferably, the nylon fibers and asbestos fibers are both short fibers with a length of 5 mm to 8 mm and a diameter of 0.1 mm to 0.15 mm.

[0078] Preferably, both P2 and P3 are operated in a closed environment and are equipped with dust removal and filtering equipment.

[0079] Preferably, the sampling and testing method in P4 is to take out the powder and put it into water, and then test the pH value of the suspension after uniform stirring, and repeat the test at least three times during the stirring and mixing stage.

[0080] Preferably, the extrusion pressure in P6 is 3 MPa to 5 MPa, and the side length of the cross section of the square strip is 2.2 cm to 2.4 cm.

[0081] Preferably, the cutting length in P7 is 1.2 meters to 1.5 meters, the placement interval is 3 centimeters to 3.5 centimeters, and the drying temperature is 80 degrees Celsius to 85 degrees Celsius.

[0082] Preferably, the thickness of the plywood in P8 is 2.2 mm to 2.3 mm, and the adhesive colloid is a polypropylene resin adhesive, which is injected into the gaps between the square strips and the contact surface of the plywood.

Claims

1. A method for preparing a new type of building material by using fly ash to prepare a board. Features: The board prepared by consuming fly ash comprises the following raw materials: 50%-75% fly ash, 10%-15% quicklime, 3%-5% plasticizer, 4%-8% PVC resin, 2%-8% nylon fiber and 5%-15% asbestos fiber; The preparation method comprises the following steps: P1. Weigh each component according to mass percentage and set aside; P2. Put the spare fly ash into a pulverizer, pulverize it, and sieve it to obtain pulverized fly ash; P3, add the crushed fly ash and quicklime into a mixer, and stir evenly for 20 to 30 minutes to obtain a mixed powder; P4. Sampling and testing the mixed powder, adjusting the pH to 7.5-7.9, and obtaining alkaline powder; P5. Put the alkaline powder into the extruder, add the plasticizer, PVC resin, nylon fiber and asbestos fiber, and add water for stirring to obtain a viscous material; P6, extrude the viscous material through an extruder to form square strips; P7. Cut the square strips, place them on the aluminum plate at intervals, push them into the drying room, and heat and dry them for 15 to 30 minutes to obtain dried strips; P8. Place the drying strips on the surface of the plywood, arrange them closely to form a plate, cover it with another layer of plywood, and inject adhesive colloid to stick and position it. Let it stand to set, and the preparation of the board is completed.

2. The method for preparing a new type of building material by using fly ash according to claim 1, Features: Each component in P1 is in a dry state when weighed, and is dried continuously for 20 to 30 minutes at a drying condition of 50 to 65 degrees Celsius.

3. The method for preparing a new type of building material by using fly ash as claimed in claim 1, Features: The PVC resin is a granular material, and the particle size is 0.1 mm to 0.15 mm.

4. The method for preparing a new type of building material by using fly ash as claimed in claim 1, Features: The nylon fibers and asbestos fibers are both short fibers with a length of 5 mm to 8 mm and a diameter of 0.1 mm to 0.15 mm.

5. The method for preparing a new type of building material by using fly ash as claimed in claim 1, Features: Both P2 and P3 are operated in a closed environment and are equipped with dust removal and filtering equipment.

6. The method for preparing a new type of building material by using fly ash as claimed in claim 1, Features: The sampling and testing method in P4 is to take out the powder and put it into water, and then test the pH value of the suspension after uniform stirring, and repeat the test at least three times during the stirring and mixing stage.

7. The method for preparing a new type of building material by using fly ash according to claim 1, Features: The extrusion pressure of P6 is 3 MPa to 5 MPa, and the side length of the cross section of the square strip is 2.2 cm to 2.4 cm.

8. The method for preparing a new type of building material plate by using fly ash according to claim 1, Features: The cutting length in P7 is 1.2 meters to 1.5 meters, the placement interval is 3 centimeters to 3.5 centimeters, and the drying temperature is 80 degrees Celsius to 85 degrees Celsius.

9. The method for preparing a new type of building material plate by using fly ash according to claim 1, Features: The thickness of the plywood in P8 is 2.2 mm to 2.3 mm, and the adhesive colloid is a polypropylene resin adhesive, which is injected into the gaps between the square strips and the contact surface of the plywood.