CN111471343A

CN111471343A - Preparation method and preparation equipment of exterior wall heat-insulation putty powder

Info

Publication number: CN111471343A
Application number: CN202010300575.0A
Authority: CN
Inventors: 汤虎; 辛宝明; 方达; 方磊
Original assignee: Vibon New Materials Ltd
Current assignee: Vibon New Materials Ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-07-31
Anticipated expiration: 2040-04-16
Also published as: CN111471343B

Abstract

The invention discloses a preparation method of exterior wall heat-insulating putty powder, which is prepared by stirring and mixing preparation raw materials consisting of base materials, cement, vitrified micro bubbles and master batch. The invention also provides equipment for preparing the exterior wall heat-insulating putty powder, which comprises a rack, wherein the rack comprises side plates arranged at intervals, a top plate is arranged at the upper end of each side plate, a side conveying belt is arranged on the inner side of each side plate along the length direction of the side conveying belt, a winding frame is arranged on each side conveying belt, and a baking area, a shaping area and a separating area are sequentially arranged on the rack from front to back along the conveying direction of each side conveying belt; the baking area is provided with an electric heating pipe, the outer side of the side plate is provided with a support in the separation area, the support is provided with a pushing device, and a piston rod of the pushing device is provided with a magnetic device matched with a clamping plate on the winding frame. The invention aims to improve the anti-cracking property of a strong surface and improve the preparation efficiency of putty.

Description

Preparation method and preparation equipment of exterior wall heat-insulation putty powder

Technical Field

The invention relates to the field of putty powder, in particular to a preparation method and preparation equipment of exterior wall heat-insulation putty powder.

Background

The putty powder is a common building decoration material. When the putty is used for an outer wall of a building, the putty used for the outer wall needs strong adhesive force and water resistance due to outdoor variable environment, so that the putty layer is required to have certain elasticity or plasticity, cracks can not appear on the surface of the building when a base layer generates micro cracks, the main components of the existing putty powder are heavy calcium (or talcum powder), gray calcium and the like, the anti-cracking performance of the existing putty powder is not ideal, the dosage of adhesives such as cement or rubber powder and the like is generally increased in order to enhance the anti-cracking performance of the putty powder in the prior art, but the effect is not ideal.

Meanwhile, if the applied putty has certain heat insulation performance while leveling the surface of the wall body, the house can have certain heat insulation effect on the premise of not changing the house structure and the like, so that good economic benefit can be obtained while energy conservation and environmental protection are realized.

Disclosure of Invention

The invention aims to solve the problems and provides a preparation method of exterior wall heat-insulation putty powder, and the prepared putty powder has strong adhesive force and waterproof effect and a certain heat-insulation function.

In order to realize the purpose, the invention adopts the technical scheme that: the preparation raw material consists of base material, cement, vitrified micro bubbles and master batch; the components are respectively as follows by weight: 300-550 parts of base material, 150-230 parts of vitrified micro bubbles, 20-50 parts of master batch and 350-550 parts of cement; the master batch is prepared from the following raw materials in parts by weight: 10-25 parts of redispersible latex powder, 2-7 parts of hydroxypropyl methyl cellulose, 0.2-0.7 part of starch ether, 0.5-1.2 parts of a water repellent agent, 0.2-0.7 part of a water reducing agent, 1.5-2.3 parts of polypropylene short fibers and 1.5-2.5 parts of palm fibers, wherein the water reducing agent can be a melamine water reducing agent, and the water repellent agent can be an organic silicon water repellent agent; the preparation process comprises the following steps: uniformly stirring the base material and the vitrified micro bubbles, then adding the master batch, continuously stirring uniformly, and then adding the cement, stirring to uniformly mix the prepared raw materials; finally, sieving the uniformly mixed raw materials and then packaging; the cement can adopt 42.5 gray cement;

further, the base material is quartz sand or river sand or particles prepared by crushing a mixture of the quartz sand and the river sand, and the particle size is 70-140 meshes.

Further, the preparation method of the master batch comprises the following steps:

s1, deoiling palm silk, which comprises the following two steps: a. putting the dried palm fibers into a reaction tank containing an acidic organic solvent with the pH of 3-4 for soaking at the temperature of 70-90 ℃ for 15-20 min, continuously introducing oxygen into the reaction tank and stirring at a constant speed, wherein the oxygen pressure is 0.1-0.2 MPa, and then fishing out and cleaning; b. b, putting the palm fibers treated by the step a into a dissolving pool containing an alkaline organic solvent with the pH of 10-12, soaking at the reaction temperature of 90-110 ℃ for 40-60 min, and then fishing out and cleaning for later use;

s2, bleaching the palm fibers, which comprises the following two steps: a. carrying out chlorine bleaching on the palm fibers treated in the step 1 at the reaction temperature of 50-60 ℃ for 40-60 min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching at the reaction temperature of 70-80 ℃ for 60-80 min, and fishing out and cleaning for later use;

s3, softening the palm fibers, namely soaking the palm fibers treated by the S3 in a softening agent until the palm fibers are softened, wherein the softening agent can be water;

s4, shaping and cutting the palm fibers, drying and shaping the palm fibers processed by the S4, and then cutting the palm fibers, wherein the length of the cut palm fibers is 10-20 mm;

s5, preparing a master batch, namely uniformly mixing the palm fibers obtained by the treatment of S5 with redispersible latex powder, hydroxypropyl methyl cellulose, starch ether, a hydrophobic agent, a water reducing agent and polypropylene short fibers to obtain the palm fiber master batch.

Furthermore, the acidic organic solvent adopted in the step S1 of preparing the master batch is one or more of pentane, hexane and octane, hydrochloric acid or sulfuric acid with the concentration of 0.1-0.14 mol/L is adopted in the organic solvent in the step A of S1 to adjust the acidity, and caustic soda with the concentration of 1.5-2 mol/L is adopted in the organic solvent in the step B of S1 to adjust the alkalinity.

Further, in S2, a sodium hypochlorite solution with the concentration of 4-6 g/L is adopted for chlorine bleaching, and a hydrogen peroxide solution with the concentration of 5-7 g/L is adopted for oxygen bleaching.

Further, in the S4, the palm fibers are shaped into an arc shape.

In order to fix the softened palm fibers into an arc shape, the invention also discloses external wall thermal insulation putty powder preparation equipment which comprises a rack, wherein the rack comprises side plates which are arranged at intervals, the two side plates are oppositely arranged, the upper ends of the side plates are provided with top plates, the inner sides of the side plates are provided with side conveying belts along the length direction of the side conveying belts, and a baking area, a shaping area and a separation area are sequentially arranged on the rack from front to back along the conveying direction of the side conveying belts; the electric heating pipe is arranged in the baking area, the air pipe is arranged in the shaping area, one end, outside the rack, of the air pipe is communicated with the air blower, one end, inside the rack, of the air pipe is connected with the air nozzle, and air flow blown out by the air nozzle blows to the palm fibers; the softened palm fibers are wound on a winding frame in advance by an operator, the palm fibers are clamped by a clamping plate, the palm fibers wound into a disc are prevented from falling off, then the two ends of the winding frame are placed on the side conveying belts on the two sides, and the winding frame sequentially passes through a baking area, a shaping area and a separation area along with the movement of the side conveying belts; the curb plate outside is provided with the support in the position of disengagement zone, be provided with thrust unit on the support, thrust unit can adopt cylinder, hydro-cylinder, electric putter etc. be provided with magnetic means on thrust unit's the piston rod, magnetic means can adopt electro-magnet, magnet etc. utilizes magnetic means to adsorb the chucking board and takes out the chucking board from the winding frame under thrust unit's drive.

Further, the winding frame includes the winding axle, the winding axle is cylindrical, the winding axle both ends are provided with the support, and the support is placed on the side conveyer belt, the support side is provided with the draw-in groove, the chucking board includes splint and the cardboard that sets up along the axis of winding axle, be provided with the connecting plate between splint and the cardboard, splint set up in the winding axle top and extend to the winding axle middle part, cardboard and draw-in groove looks adaptation, the connecting plate is made by the material that can be adsorbed by magnetic means, like iron.

Furthermore, the curb plate inboard sets up in the separation area and has a limiting plate, the limiting plate is used for restricting the displacement of support, avoids taking out when leaving the chucking plate, drives the winding frame for the support of chucking plate distal end drops from the side conveyer belt.

Furthermore, a groove is formed in the upper end of the winding shaft along the axial direction of the winding shaft, the left end and the right end of the groove are open, a cutting knife moving along the groove is arranged in the rack, and the cutting edge of the cutting knife slides into the groove from the side end of the groove; the inner side of the side plate is provided with a baffle plate opposite to the cutting knife, and the baffle plate is used for limiting the moving position of the winding frame.

Furthermore, the upper end of the cutting knife is arranged on the knife holder, the upper end of the knife holder penetrates through a strip hole arranged on the top plate along the axial direction of the winding shaft and is in threaded connection with the screw rod, two ends of the screw rod are connected with bearings in the upright column at the upper end of the top plate, and the screw rod is in transmission connection with the driving motor.

The invention has the beneficial effects that: the raw materials comprise base materials, cement, vitrified micro bubbles and master batch, wherein the master batch is prepared from redispersible latex powder, hydroxypropyl methylcellulose, starch ether, a hydrophobic agent, a water reducing agent, polypropylene short fibers and palm fibers, and the redispersible latex powder can improve the flow property of other materials and has stronger bonding capability; the hydroxypropyl methyl cellulose can thicken and slow down the drying speed of the putty layer, so that the cracking of the putty applied on an object caused by too fast drying is avoided, and the hydroxypropyl methyl cellulose also has a lubricating effect and can improve the workability of the putty powder; the water repellent agent and the water reducing agent can play a role in water prevention, and the service life and the construction performance of the putty are improved; the vitrified micro bubbles have good heat preservation and sound absorption performance; the polypropylene short fiber can improve the crack resistance and the impermeability; the putty prepared by the preparation method meets the requirements of building thermal insulation mortar (standard number: GB/T20473-2006), specifically shown in figure 1, obviously improves the anti-cracking property of the wall surface, has stronger bonding force with the base layer, and is not easy to fall off.

1. Compared with single linear fibers or filaments, the palm filaments are made into arcs, when the arc-shaped palm filaments are mixed with other raw materials, the raw materials can be interwoven together to form an intricate and complex connection state, the adjacent palm filaments are not easy to separate, the combination performance of putty is better, cracking and falling are more effectively prevented, the micro elastic deformation state of the dried wall putty state is improved, a certain buffering effect is achieved, and the elastic putty with excellent comprehensive performance is formed.

2. In the deoiling treatment of the palm silk, firstly, the palm silk is soaked in a strong acid solvent, so that pigments on the surface of the silk can be effectively removed, such as part of pectin, wax, lignin and the like are dissolved, and the step is carried out in a micro-pressure oxygen environment, so that the oxidation of the surface layer of the palm silk is accelerated, the surface layer is decomposed in a short time, the tough grease layer on the surface layer can be conveniently and thoroughly removed, and the interior of the silk is not damaged by oxidation; then, in an alkaline solvent, secondary impurity removal is carried out, so that pectin, wax, lignin, hemicellulose and the like on the surface are dissolved more thoroughly, and fiber tissues are bulked.

3. In the bleaching treatment, chlorine bleaching is firstly carried out, and the key point is to remove lignin in inner-layer fibers, so that the palm fibers are more white, cleaner and softer; then oxygen bleaching is carried out, so that the molecular structure is bulkier, and residual bonded impurities inside are completely separated from the fibers; in the two bleaching processes, the transparency of the palm fiber is improved and the strength and the toughness of the palm fiber are ensured on the premise of not damaging the original structural tissue of the palm fiber.

4. After stirring, the palm fibers and the polypropylene short fibers are wound together, and the toughness of the polypropylene short fibers is improved by utilizing the palm fibers, so that the crack resistance and the freezing resistance of the wall surface are further improved; meanwhile, palm fibers are matched with polypropylene short fibers to play a role of a framework, and all components are connected into a whole.

5. The equipment disclosed by the invention can automatically complete the drying, shaping and material taking of the palm fibers so as to improve the working efficiency and reduce the working strength.

Drawings

FIG. 1 is a table of testing effects according to an embodiment of the present invention.

FIG. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic view of the structure inside the frame at the stand.

Fig. 4 is a schematic structural view of the inside of the frame at the position of the cutting knife.

Fig. 5 is a schematic view of a winding frame structure.

The text labels in the figures are represented as: 1. a side plate; 2. a top plate; 3. a side conveyor belt; 4. a winding frame; 5. an electric heating tube; 6. an air duct; 7. a blower; 8. a tuyere; 9. a support; 10. a pushing device; 11. a chucking plate; 12. a magnetic device; 13. a winding shaft; 14. a support; 15. a splint; 16. clamping a plate; 17. a connecting plate; 18. a limiting plate; 19. a groove; 20. a cutting knife; 21. a baffle plate; 22. a tool apron; 23. a strip hole; 24. a screw; 25. a column; 26. a drive motor; 27. a separator.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

Example 1: a method for preparing putty powder for external wall insulation comprises preparing raw materials comprising base material, cement, vitrified micro bubbles and master batch; the components are respectively as follows by weight: 300 parts of base stock, 150 parts of vitrified micro bubbles, 20 parts of master batch and 350 parts of cement; the master batch is prepared from the following raw materials in parts by weight: 10 parts of redispersible latex powder, 2 parts of hydroxypropyl methyl cellulose, 0.2 part of starch ether, 0.5 part of hydrophobic agent, 0.2 part of water reducing agent, 1.5 parts of polypropylene short fiber and 1.5 parts of palm fiber; the preparation method comprises the following steps: uniformly stirring the base material and the vitrified micro bubbles, then adding the master batch, continuously stirring uniformly, and then adding the cement, stirring to uniformly mix the prepared raw materials; and finally, sieving the uniformly mixed raw materials and then packaging.

Preferably, the base material is quartz sand or river sand or particles prepared by crushing a mixture of the quartz sand and the river sand, and the particle size is 70-140 meshes.

Preferably, the preparation method of the master batch comprises the following steps:

s1, deoiling palm silk, which comprises the following two steps: a. putting the dried palm fibers into a reaction tank containing an acidic organic solvent with the pH of 3-4 for soaking at the temperature of 70-90 ℃ for 15-20 min, continuously introducing oxygen into the reaction tank and stirring at a constant speed, wherein the oxygen pressure is 0.1-0.2 MPa, and then fishing out and cleaning; b. b, putting the palm fibers treated by the step a into a dissolving pool containing an alkaline organic solvent with the pH of 10-12, soaking at the reaction temperature of 90-110 ℃ for 40-60 min, and then fishing out and cleaning; s2, bleaching the palm fibers, which comprises the following two steps: a. carrying out chlorine bleaching on the palm fibers treated in the step 1 at the reaction temperature of 50-60 ℃ for 40-60 min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching at the reaction temperature of 70-80 ℃ for 60-80 min, and fishing out and cleaning;

s3, softening the palm fibers, namely soaking the palm fibers treated by the S2 in a softening agent until the palm fibers are softened;

s4, shaping and cutting the palm fibers, drying and shaping the palm fibers processed by the S3, and putting the palm fibers into a cutting machine for cutting;

s5, preparing a master batch, namely uniformly mixing the palm fibers obtained by the treatment of S4 with redispersible latex powder, hydroxypropyl methyl cellulose, starch ether, a hydrophobic agent, a water reducing agent and polypropylene short fibers to obtain the palm fiber master batch.

Preferably, the acidic organic solvent used in S1 is one or a mixture of pentane, hexane and octane, the organic solvent in the step A of S1 is adjusted to be acidic by hydrochloric acid or sulfuric acid with the concentration of 0.1-0.14 mol/L, and the organic solvent in the step B of S1 is adjusted to be basic by caustic soda with the concentration of 1.5-2 mol/L.

Preferably, in S2, the chlorine bleaching adopts a sodium hypochlorite solution with the concentration of 4-6 g/L, and the oxygen bleaching adopts a hydrogen peroxide solution with the concentration of 5-7 g/L.

Example 2: the preparation method of the putty and the preparation method of the master batch are the same as those of the embodiment 1, but the putty raw materials respectively comprise the following components in parts by weight: 550 parts of base material, 230 parts of vitrified micro bubbles, 50 parts of master batch and 550 parts of cement; the master batch consists of the following raw materials in parts by weight: 25 parts of redispersible latex powder, 7 parts of hydroxypropyl methyl cellulose, 0.7 part of starch ether, 1.2 parts of a hydrophobic agent, 0.7 part of a water reducing agent, 2.3 parts of polypropylene short fibers and 2.5 parts of palm fibers.

Preferably, the palm filaments are arcuate.

Example 3: the preparation method of the putty and the preparation method of the master batch are the same as those of the embodiment 1, but the putty raw materials respectively comprise the following components in parts by weight: 400 parts of base material, 200 parts of vitrified micro bubbles, 30 parts of master batch and 400 parts of cement; the master batch consists of the following raw materials in parts by weight: the master batch comprises the following components in parts by weight: 20 parts of redispersible latex powder, 4 parts of hydroxypropyl methyl cellulose, 0.5 part of starch ether, 1 part of hydrophobic agent, 0.5 part of water reducing agent, 2 parts of polypropylene short fiber and 2 parts of palm fiber.

Preferably, the palm filaments are arcuate.

In order to shape the palm fibers into arcs, the external wall thermal insulation putty powder preparation equipment shown in fig. 2-5 is adopted, and comprises a rack, wherein the rack comprises side plates 1 arranged at intervals, a top plate 2 is arranged at the upper end of each side plate 1, a side conveying belt 3 is arranged on the inner side of each side plate 1 along the length direction of the side plate, each side conveying belt 3 comprises an annular closed conveying belt, each conveying belt is arranged on a driving roller arranged at intervals, each driving roller is driven by a driving motor to rotate so as to enable the conveying belts to reciprocate, two ends of a winding frame 4 are arranged on the side conveying belts 3 and sequentially pass through a baking area, a shaping area and a separation area on the rack, and a partition plate 27 is arranged between every two adjacent areas; toast the district and be provided with electric heating pipe 5, the design district is provided with tuber pipe 6, tuber pipe 6 communicates in frame outside one end and air-blower 7, tuber pipe 6 is connected with tuyere 8 in the inboard one end of frame, the curb plate 1 outside is provided with support 9 in the disengagement zone, be provided with thrust unit 10 on the support 9, be provided with on thrust unit 10's the piston rod with the magnetic means 12 of the chucking plate 11 looks adaptation on winding frame 4, magnetic means 12 adopts the electro-magnet in this embodiment, and magnetic means 12 moves in order to take chucking plate 11 out from winding frame 4 to chucking plate 11, be provided with the through-hole that is used for chucking plate 11 and magnetic means 12 to alternate on the curb plate 1.

Preferably, the winding frame 4 includes columniform winding axle 13, winding axle 13 both ends are provided with support 14, support 14 is the rectangle and places on the side conveyer belt 3, winding axle 13 up end is higher than support 14 up end, support 14 is provided with the draw-in groove in 1 one side of curb plate, chucking plate 11 includes splint 15 and the cardboard 16 along the axis setting of winding axle 13, be provided with connecting plate 17 between splint 15 and the cardboard 16, cardboard 16 inserts in the draw-in groove, connecting plate 17 is made by the material that can be adsorbed by magnetic device 12, curb plate 1 is inboard to be provided with limiting plate 18 near the through-hole, limiting plate 18 can support 14, avoids chucking plate 11 to take off when taking off limiting plate 18.

Preferably, a groove 19 is formed in the upper end of the winding shaft 13 along the axial direction of the winding shaft, a cutting knife 20 moving along the groove 19 is arranged in the machine frame, a baffle 21 is arranged at a position, opposite to the cutting knife 20, of the inner side of the side plate 1, and the baffle 21 corresponds to the support 14 in position.

Preferably, the upper end of the cutting knife 20 is fixed on a knife holder 22 through a bolt or the like, the upper end of the knife holder 22 penetrates through a long hole 23 arranged on the top plate 2 along the axial direction of the winding shaft 13 and is in threaded connection with a screw 24, a guide post can be arranged in the long hole 23 and penetrates through the knife holder 22, two ends of the screw 24 are connected with a bearing in an upright post 25 at the upper end of the top plate 2, and the screw 24 is in transmission connection with a driving motor 26.

When in specific use: winding the soaked palm fibers on a winding shaft 13, inserting a clamping plate 11 into a support 14 after winding is finished, enabling a clamping plate 15 to be in contact with the palm fibers, avoiding loosening of looped palm fibers, and then placing a winding frame 4 in a rack, so that the supports 14 on two sides of the winding frame 4 are in contact with the upper end of a side conveyor belt 3; with the movement of the side conveyor belt 3, the palm wires on the winding frame 4 sequentially pass through the baking area, the shaping area and the separating area.

When the palm fibers pass through the baking area, the palm fibers are dried by heat generated by the electric heating pipe 5.

When the winding frame 4 passes through the shaping area, the air flow generated by the air blower 7 is blown onto the palm fibers through the air nozzles 8, so that the palm fibers are rapidly cooled to facilitate subsequent operation, and meanwhile, the palm fibers are rapidly cooled to be shaped.

When the winding frame 4 passes through the magnetic device 12 of the separation area, the magnetic device 12 moves towards the clamping plate 11 under the pushing of the pushing device 10, the connecting plate 17 in the clamping plate 11 is adsorbed by the magnetic device 12, then the pushing device 10 moves the magnetic device 12 and the clamping plate 11 towards the outer side of the side plate 1, so that the clamping plate 11 is separated from the support 14, the palm silk roll is not limited by the support 14 and is sent out, and the palm silk roll drops from the winding shaft 13, and the clamping plate 11 is taken to the outer side of the rack by the magnetic device 12, an operator can take the clamping plate 11 away, the magnetic device 12 adopts an electromagnet, after the clamping plate 11 moves to the outer side of the rack, the electromagnet is powered off, and the clamping plate 11 automatically drops from the magnetic device 12.

Meanwhile, in order to ensure that the palm fibers can fall off from the winding shaft 13, the top plate 2 is provided with a long hole 23 at the rear side of the magnetic device 12, the upper end of a cutter holder 22 extends out of the long hole 23 and is in threaded connection with a screw 24, the lower end of the cutter holder 22 is provided with a cutting knife 20, and the screw 24 is driven by a driving motor 26 to rotate, so that the cutting edge of the cutting knife 20 enters the groove 19 from the side end of the groove 19 and moves towards the other side in the groove 19, the palm fibers are rolled into two halves, and the palm fibers fall off.

The winding frame 4 separated from the palm fiber is moved to the end of the side conveyor belt 3, and the worker takes the winding frame 4 off the side conveyor belt 3.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. The preparation method of the exterior wall heat-insulating putty powder is characterized in that the preparation raw materials consist of base materials, cement, vitrified micro bubbles and master batch; the components are respectively as follows by weight: 300-550 parts of base material, 150-230 parts of vitrified micro bubbles, 20-50 parts of master batch and 350-550 parts of cement; the master batch is prepared from the following raw materials in parts by weight: 10-25 parts of redispersible latex powder, 2-7 parts of hydroxypropyl methyl cellulose, 0.2-0.7 part of starch ether, 0.5-1.2 parts of hydrophobic agent, 0.2-0.7 part of water reducing agent, 1.5-2.3 parts of polypropylene short fiber and 1.5-2.5 parts of palm fiber; the preparation method comprises the following steps: uniformly stirring the base material and the vitrified micro bubbles, then adding the master batch, continuously stirring uniformly, and then adding the cement, stirring to uniformly mix the prepared raw materials; and finally, sieving the uniformly mixed raw materials and then packaging.

2. The preparation method of the exterior wall thermal insulation putty powder as claimed in claim 1, wherein the base material is quartz sand or river sand or particles prepared by crushing a mixture of quartz sand and river sand, and the particle size is 70-140 meshes.

3. The preparation method of the external wall thermal insulation putty powder as claimed in claim 1, characterized in that the preparation method of the master batch comprises the following steps:

s1, deoiling palm silk, which comprises the following two steps: a. putting the dried palm fibers into a reaction tank containing an acidic organic solvent with the pH of 3-4 for soaking at the temperature of 70-90 ℃ for 15-20 min, continuously introducing oxygen into the reaction tank and stirring at a constant speed, wherein the oxygen pressure is 0.1-0.2 MPa, and then fishing out and cleaning; b. b, putting the palm fibers treated by the step a into a dissolving pool containing an alkaline organic solvent with the pH of 10-12, soaking at the reaction temperature of 90-110 ℃ for 40-60 min, and then fishing out and cleaning;

s2, bleaching the palm fibers, which comprises the following two steps: a. carrying out chlorine bleaching on the palm fibers treated in the step 1 at the reaction temperature of 50-60 ℃ for 40-60 min, and fishing out and cleaning; b. carrying out oxygen bleaching on the palm filaments subjected to chlorine bleaching at the reaction temperature of 70-80 ℃ for 60-80 min, and fishing out and cleaning;

s4, shaping and cutting the palm fibers, drying and shaping the palm fibers processed by the S3, and then cutting the palm fibers;

4. The preparation method of the exterior wall thermal insulation putty powder as claimed in claim 3, wherein the acidic organic solvent adopted in S1 is one or more of pentane, hexane and octane, the organic solvent in the step A of S1 is adjusted to be acidic by hydrochloric acid or sulfuric acid with the concentration of 0.1-0.14 mol/L, and the organic solvent in the step B of S1 is adjusted to be alkaline by caustic soda with the concentration of 1.5-2 mol/L.

5. The method for preparing the exterior wall thermal insulation putty powder as claimed in claim 3, wherein in S2, sodium hypochlorite solution with concentration of 4-6 g/L is adopted for chlorine bleaching, and hydrogen peroxide solution with concentration of 5-7 g/L is adopted for oxygen bleaching.

6. The method for preparing the exterior wall insulation putty powder as recited in claim 3, wherein the palm fibers in S4 are shaped into an arc shape.

7. The equipment for preparing the external wall heat-insulation putty powder is characterized by comprising a rack, wherein the rack comprises side plates (1) arranged at intervals, a top plate (2) is arranged at the upper end of each side plate (1), a side conveying belt (3) is arranged on the inner side of each side plate (1) along the length direction of the side conveying belt, a winding frame (4) is placed on each side conveying belt (3), and a baking area, a shaping area and a separation area are sequentially arranged on the rack from front to back along the conveying direction of each side conveying belt (3); toast the district and be provided with electric heating pipe (5), the design district is provided with tuber pipe (6), tuber pipe (6) are in frame outside one end and air-blower (7) intercommunication, tuber pipe (6) are connected with tuyere (8) in frame inboard one end, curb plate (1) outside is provided with support (9) in the disengagement zone, be provided with thrust unit (10) on support (9), be provided with on the piston rod of thrust unit (10) with chucking board (11) looks adaptation magnetic device (12) on winding frame (4).

8. The exterior wall insulation putty powder preparation equipment as claimed in claim 7, characterized in that the winding frame (4) comprises a winding shaft (13), two ends of the winding shaft (13) are provided with supports (14), the side ends of the supports (14) are provided with clamping grooves, the clamping plate (11) comprises a clamping plate (15) and a clamping plate (16) which are arranged along the axis of the winding shaft (13), a connecting plate (17) is arranged between the clamping plate (15) and the clamping plate (16), the clamping plate (16) is matched with the clamping grooves, the connecting plate (17) is made of a material which can be adsorbed by a magnetic device (12), and a separation area (18) is arranged on the inner side of the side plate (1).

9. The exterior wall insulation putty powder preparation equipment as claimed in claim 8, characterized in that a groove (19) is arranged at the upper end of the winding shaft (13) along the axial direction, a cutting knife (20) moving along the groove (19) is arranged in the rack, and a baffle (21) is arranged at the position of the inner side of the side plate (1) opposite to the cutting knife (20).

10. The exterior wall insulation putty powder preparation equipment as claimed in claim 8, characterized in that the upper end of the cutter (20) is arranged on a cutter holder (22), the upper end of the cutter holder (22) penetrates through a long hole (23) arranged on the top plate (2) along the axial direction of the winding shaft (13) and is in threaded connection with a screw rod (24), two ends of the screw rod (24) are connected with bearings in an upright post (25) at the upper end of the top plate (2), and the screw rod (24) is in transmission connection with a driving motor (26).