CN112171870A

CN112171870A - Forming method of fireproof aerated concrete block

Info

Publication number: CN112171870A
Application number: CN202011042399.1A
Authority: CN
Inventors: 吴秋敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-01-05

Abstract

The invention relates to a method for forming a refractory aerated concrete block, in particular to a device for forming and repairing the refractory aerated concrete block, which comprises a recovery hopper for recovering slurry, an intermittent smearing mechanism for smearing the slurry, a leveling plate for leveling the slurry and a scraping mechanism for scraping off redundant slurry, wherein the recovery hopper is of a rectangular pocket frame structure, the recovery hopper is provided with a blanking sliding plate convenient for recovering the slurry to slide down, and the intermittent smearing mechanism, the leveling plate and the scraping mechanism are all arranged on the blanking sliding plate and are sequentially arranged along a horizontal straight line direction; the device related in the method can repair aerated concrete blanks in time after demoulding, can replace manual work to repair automatically, is suitable for being assembled on a processing line to realize automatic production, and can ensure the smoothness of the appearance surface after repairing.

Description

Forming method of fireproof aerated concrete block

Technical Field

The invention relates to the technical field of aerated concrete blocks, and particularly provides a method for forming a fireproof aerated concrete block.

Background

The fireproof aerated concrete block is a novel building material which is light, porous, heat-insulating, good in fireproof performance, nailable, sawable, planeable and has certain shock resistance. Compared with the traditional concrete block, the fireproof aerated concrete block has the advantages of light weight, high strength, good heat insulation performance, good earthquake resistance, good machinability, high temperature resistance, good sound insulation performance and the like, thereby being popularized and used in the field of modern building materials.

The method mainly comprises the following steps of raw material preparation, raw material storage, reinforcing mesh processing, ingredient stirring, slurry pouring, static maintenance, cutting forming, heat preservation autoclaving, kettle discharging and other processing steps in the production and manufacturing process of the fireproof aerated concrete block, wherein after the slurry is poured into a mold frame and is subjected to static maintenance and shaping, a formed aerated concrete blank can be separated from the mold frame, the blank can be broken and damaged after demolding, the blank needs to be repaired correspondingly, so that the aerated concrete blank is kept in a complete state to obtain the aerated concrete block with a complete shape after cutting forming.

Based on the problems, the invention provides a method for forming a refractory aerated concrete block.

Disclosure of Invention

In order to solve the above problems, the present invention provides a method for forming a refractory aerated concrete block, which solves the above problems of the background art.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a forming method of a fireproof aerated concrete block specifically comprises the following steps:

s1, injection molding: pouring the prepared slurry after stirring and mixing into a prepared mold frame through a pouring gate of a stirrer for forming and processing an aerated concrete blank;

s2, standing and maintaining: so that the slurry after pouring is subjected to gas generation, expansion and thickening in a mold frame, and finally the blank is subjected to high hardening in the mold frame;

s3, demolding and repairing: separating the aerated concrete blank subjected to the static maintenance and forming in the step S2 from the die frame, and timely repairing the aerated concrete blank which is cracked on the side surface after the die is removed and needs to be repaired by a refractory aerated concrete block forming and repairing device;

s4, slitting and forming: cutting and processing the shape of the aerated concrete blank after the demoulding and repairing are finished to meet the requirements of the corresponding shape and size, so as to form an aerated concrete block with the corresponding size;

the method for forming the fireproof aerated concrete block comprises the steps of S1-S4, and further specifically relates to a device for forming and repairing the fireproof aerated concrete block in the process of forming and processing the aerated concrete block, wherein the device comprises a recovery hopper for recovering slurry, an intermittent material smearing mechanism for smearing the slurry, an even smearing plate for evenly smearing the slurry and a scraping mechanism for scraping off redundant slurry, the recovery hopper is of a rectangular pocket frame structure, a blanking sliding plate convenient for recovering and sliding the slurry is arranged on the recovery hopper, and the intermittent material smearing mechanism, the even smearing plate and the scraping mechanism are all arranged on the blanking sliding plate and are sequentially arranged along the horizontal linear direction; wherein:

the intermittent material smearing mechanism comprises a cubic material bin, an intermittent material pushing mechanism and a sealing plate assembly, the material bin is fixedly mounted on the blanking sliding plate, a gap for facilitating slurry to pass through is reserved between the bottom of the material bin and the blanking sliding plate, and the material bin is divided into a material pushing area provided with the intermittent material pushing mechanism and a material storage area used for storing slurry;

the intermittent material pushing mechanism comprises a material pushing motor, a cam roller, a material pushing plate, a first guide rod and a first tension spring, wherein the material pushing motor is fixedly installed at the bottom of the material pushing area, the cam roller is located in the material pushing area, the shaft end of the cam roller is vertically and fixedly connected with an output shaft of the material pushing motor, the section of the cam roller is in a cam shape, the material pushing plate is horizontally arranged in the material bin in a sliding mode and divides the material bin into the material pushing area and the material storage area, the cam roller is in contact with the side wall of the material pushing plate, a plurality of first guide rods horizontally arranged with the side wall of the material pushing area are fixedly connected onto the side wall of the material pushing plate, each first guide rod is sleeved with the first tension spring, and the two ends of each first tension spring are fixed between the side wall of the material pushing plate and the side;

the two side positions of the upper end of the material pushing plate are correspondingly provided with side extending lugs extending out of the material bin, the side position of the material storage area facing the sliding direction of the material pushing plate is provided with a material outlet, two sealing plate components which are arranged in a mirror symmetry manner and are used for matching and sealing the material outlet are arranged at the material outlet, each sealing plate component comprises a plurality of second guide rods which are vertically and fixedly arranged on the outer side wall of the material storage area, a plurality of material outlet sealing plates which are horizontally arranged on the second guide rods in a sliding manner, a plurality of second tension springs which are sleeved on the second guide rods in a one-to-one correspondence manner and wedge blocks which are fixedly arranged on the side extending lugs at the same side position, the axial direction of the second guide rods is vertical to the moving direction of the material pushing plate, the material outlet sealing plates are tightly attached to the material outlet end, and the two ends of the second tension springs, the inner side wall of the discharging sealing plate is provided with a roller, the roller is located in front of the wedge block, the front end of the wedge block is an inclined surface in contact with the roller, and when the wedge block moves towards the direction close to the discharging sealing plate, the discharging sealing plate opens the discharging hole.

Preferably, scrape flat mechanism including rotating the support frame, scraping material motor, two scrape material roller and drive belt, rotate support frame fixed mounting in on the blanking slide, scrape material motor fixed mounting in the top bottom position that rotates the support frame, be equipped with driving pulley on the output shaft of scraping the material motor, two scrape the equal vertical rotation setting of material roller and be in rotate on the support frame and follow the axial arrangement setting of No. two guide arms, the top axle head of scraping the material roller is provided with from the driven pulleys, the drive belt cover is established driving pulley and two from between the driven pulleys.

Preferably, a plurality of scraping blades are equidistantly distributed on the scraping roller about the circumference of the roller shaft, and the adjacent scraping blades are in arc transitional connection.

Preferably, the leveling plate is fixedly arranged on the blanking sliding plate through a fixing plate, and the leveling plate is obliquely arranged relative to the material pushing plate and is deviated to one side of the scraping mechanism.

Preferably, a feeding guide plate convenient for throwing slurry is arranged at the top end of the storage area.

Preferably, the blanking sliding plate extends forwards relative to the intermittent material smearing mechanism, the leveling plate and the leveling machine.

Preferably, the recovery bucket is provided with a gate plate.

The technical scheme has the following advantages or beneficial effects:

the invention provides a method for forming a fireproof aerated concrete block, in particular to a device for forming and repairing the fireproof aerated concrete block, which can automatically smear and fill slurry through an arranged intermittent smearing mechanism, can intermittently push and press the slurry on the side surface of an aerated concrete blank, can reasonably control materials to avoid waste of the slurry, can uniformly smear the slurry on the side surface of the aerated concrete blank while moving along with repairing through an arranged scraping plate, effectively fills the slurry at a damaged position in the scraping process, can integrally scrape the redundant part in the uniformly smeared slurry along with the repairing moving process through an arranged scraping mechanism, can ensure the integral smoothness of a repaired surface, can intensively collect and recycle the slurry falling in the repairing process through an arranged recovery hopper, in conclusion, the device related in the method provided by the invention can repair aerated concrete blanks in time after demoulding, can replace manual work to repair automatically, is suitable for being assembled on a processing line to realize automatic production, and can ensure the smoothness of the appearance surface after repairing.

Drawings

The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The drawings, in which like numerals refer to like parts throughout the several views and which are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a flow chart of a method for forming a refractory aerated concrete block according to the present invention;

FIG. 2 is a schematic perspective view of a device for forming and repairing a fire-resistant aerated concrete block according to the present invention;

FIG. 3 is a schematic perspective view of a device for forming and repairing a refractory aerated concrete block according to the present invention from another perspective;

FIG. 4 is an enlarged partial schematic view at A of FIG. 3;

FIG. 5 is a top view of a refractory aerated concrete block forming and repairing device provided by the invention;

FIG. 6 is a cross-sectional view B-B of FIG. 5;

FIG. 7 is a front view of a refractory aerated concrete block forming and repairing device provided by the invention;

fig. 8 is a back view of the device for forming and repairing the fireproof aerated concrete block provided by the invention.

In the figure: 1. a recovery hopper; 11. a blanking sliding plate; 12. a shutter plate; 2. an intermittent material smearing mechanism; 21. a storage bin; 211. a material pushing area; 212. a material storage area; 2121. a feeding guide plate; 22. an intermittent material pushing mechanism; 221. a material pushing motor; 222. a cam roller; 223. a material pushing plate; 2231. extending the ear laterally; 224. a first guide rod; 225. a first tension spring; 23. a seal plate assembly; 231. a second guide rod; 232. a discharging closing plate; 2321. a roller; 233. a second tension spring; 234. a wedge block; 3. evenly smearing the board; 4. a strickling mechanism; 41. rotating the support frame; 42. a scraping motor; 421. a drive pulley; 43. a scraping roller; 431. a driven pulley; 432. scraping a blade; 44. a transmission belt.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for the purpose of providing those skilled in the art with a more complete, accurate and thorough understanding of the concept and technical solution of the present invention, and to facilitate the implementation thereof, but not to limit the present invention.

Referring to the attached drawings 1-8, a method for forming a refractory aerated concrete block specifically comprises the following steps:

the method for forming the fireproof aerated concrete block comprises the steps of S1-S4, and further specifically relates to a device for forming and repairing the fireproof aerated concrete block in the process of forming and processing the aerated concrete block, wherein the device comprises a recovery hopper 1 for recovering slurry, an intermittent trowelling mechanism 2 for trowelling the slurry, a trowelling plate 3 for trowelling the slurry evenly and a scraping mechanism 4 for scraping off the redundant slurry, the recovery hopper 1 is of a rectangular frame structure, a blanking sliding plate 11 convenient for recovering and sliding the slurry is arranged on the recovery hopper 1, the blanking sliding plate 11 extends forwards relative to the intermittent trowelling mechanism 2, the trowelling plate 3 and the scraping machine (so that the slurry falling off in the repairing process can fall on the blanking sliding plate 11), and the intermittent trowelling mechanism 2, the trowelling plate 3 and the scraping mechanism 4 are arranged on the blanking sliding plate 11 and are sequentially arranged along the horizontal straight line direction; the device provided by the invention is mainly assembled on an aerated concrete block forming and processing production line, automatically repairs the aerated concrete block after demoulding, and is particularly assembled on the existing moving platform structure, on one hand, the device can be driven to be close to the side surface of the aerated concrete block to be repaired, so that the intermittent material smearing mechanism 2 can conveniently smear slurry on the side surface of the block, and meanwhile, the end part of the scraping blade 432 can be just attached to the original side position of the aerated concrete block, and on the other hand, the whole device can be driven to move along the side surface direction of the whole aerated concrete block to repair; four devices provided by the invention can be arranged at the positions where the aerated concrete blank passes through in the production line and correspondingly distributed at the four side positions of the aerated concrete blank.

In the step S3, in the course of repairing the aerated concrete blank by removing the aerated concrete blank from the mold frame, the damaged surface (i.e., the cracked surface) of the aerated concrete blank is automatically repaired by moving the repairing device, and in the course of repairing, the intermittent trowelling mechanism 2, the trowelling plate 3 and the strickling mechanism 4 sequentially trowels the slurry, screeds the slurry, and scrapes off the excess slurry.

The intermittent material smearing mechanism 2 comprises a cubic stock bin 21, an intermittent material pushing mechanism 22 and a sealing plate assembly 23, the stock bin 21 is welded and installed on the blanking sliding plate 11, a gap for facilitating slurry to pass through is reserved between the bottom of the stock bin 21 and the blanking sliding plate 11, and the stock bin 21 is divided into a material pushing area 211 provided with the intermittent material pushing mechanism 22 and a material storage area 212 used for storing slurry; the top end of the stock area 212 is provided with a feed guide plate 2121 for facilitating the discharge of slurry, and slurry for repair is injected into the stock area 212 from the position of the feed guide plate 2121.

The intermittent material pushing mechanism 22 comprises a material pushing motor 221, a cam roller 222, a material pushing plate 223, a first guide rod 224 and a first tension spring 225, the material pushing motor 221 is fixedly mounted at the bottom of the material pushing area 211 through screws, the cam roller 222 is located in the material pushing area 211, the shaft end of the cam roller is vertically and fixedly connected with an output shaft of the material pushing motor 221, the section of the cam roller 222 is in a cam shape (the contact area of the cam roller 222 and the material pushing plate 223 is improved), the material pushing plate 223 is horizontally and slidably arranged in the stock bin 21 and divides the stock bin 21 into the material pushing area 211 and the stock area 212 (the space size of the material pushing area 211 and the stock area 212 is dynamically changed along with the sliding of the material pushing plate 223), in order to ensure the sealing performance between the material pushing area 211 and the stock area 212, a waterproof strip can be additionally arranged at the edge position of the contact between the material pushing plate 223 and the inner wall of the stock bin 21), the cam roller 222 is in contact with the side wall, the four first guide rods 224 are uniformly distributed at the positions of rectangular vertexes, each first guide rod 224 is sleeved with a first tension spring 225, and two ends of each first tension spring 225 are welded between the side wall of the pushing plate 223 and the side wall of the pushing area 211;

during the repair process, the slurry stored in the storage area 212 can be intermittently pushed out by the intermittent pushing mechanism 22, specifically, the pushing motor 221 is started to drive the cam roller 222 to rotate at a constant speed, during the process that the cam roller 222 rotates at a constant speed, the pushing plate 223 is pushed to slide forward in the pushing process of the cam roller 222, so that the slurry in the storage area 212 is pushed out, during the return rotation process of the cam roller 222, the tension spring 225 compressed during the pushing process is gradually released to enable the pushing plate 223 to reset, and therefore, during the circular rotation process of the cam roller 222, the slurry in the storage area 212 is automatically pushed to the side surface of the aerated concrete blank intermittently.

The two side positions of the upper end of the material pushing plate 223 are correspondingly provided with side extending lugs 2231 extending out of the storage bin 21, the side position of the storage area 212 facing the sliding direction of the material pushing plate 223 is a discharge hole, two sealing plate assemblies 23 which are arranged in a mirror symmetry manner and are used for matching and sealing the discharge hole are arranged at the discharge hole, each sealing plate assembly 23 comprises two second guide rods 231 which are vertically welded on the outer side wall of the storage area 212, a discharge sealing plate 232 which is horizontally arranged on the two second guide rods 231 in a sliding manner, two second tension springs 233 which are sleeved on the two second guide rods 231 in a one-to-one correspondence manner, and wedge blocks 234 which are welded on the side extending lugs 2231 at the same side position, the axial direction of the second guide rod 231 is vertical to the moving direction of the material pushing plate 223, the discharge sealing plate 232 is closely arranged at the discharge hole end (the discharge hole can be sealed by the, the inside wall of the discharging sealing plate 232 is provided with a roller 2321, the roller 2321 is located in front of the wedge 234, the front end of the wedge 234 is an inclined surface contacting with the roller 2321, and when the wedge 234 moves towards the direction close to the discharging sealing plate 232, the discharging opening of the discharging sealing plate 232 is opened.

In the process of pushing by the intermittent pushing mechanism 22, the opening and closing of the two discharging sealing plates 232 are synchronously driven, specifically, when the cam roller 222 is in the rotating process of pushing, the pushing plate 223 slides close to the discharging port, so that the wedge 234 synchronously moves forward along with the pushing plate 223, the forward moving wedge 234 pushes against the roller 2321, the inclined surface of the wedge 234 drives the discharging sealing plates 232 to slide outwards along the second guide rod 231, then the two discharging sealing plates 232 are gradually opened in the pushing process, when the wedge plate 223 is opened, the slurry is pushed and extruded by the pushing plate 223, when the cam roller 222 rotates in the return stroke, the wedge 234 retracts along with the pushing plate 223, and then the two discharging sealing plates 232 are gradually closed under the action of the second tension spring 233.

The troweling plate 3 is fixedly arranged on the blanking sliding plate 11 through a fixing plate, and the troweling plate 3 is obliquely arranged relative to the material pushing plate 223 and is deviated to one side of the scraping mechanism 4.

After the intermittent smearing mechanism 2 smears slurry on the side surface of the aerated concrete blank intermittently, the slurry is attached to the side surface discontinuously, then the patching device is used for smearing the slurry attached to the side surface on the side surface uniformly by the smearing plate 3 in the forward moving patching process, patching is finished in the smearing process, and redundant slurry falls into the recycling hopper 1.

The strickle mechanism 4 includes rotating the support frame 41, scrape the material motor 42, two scrape material roller 43 and drive belt 44, rotate the support frame 41 and weld on the blanking slide plate 11, scrape the material motor 42 and fix in the top bottom position of rotating the support frame 41 through the bolt, scrape the output shaft of the material motor 42 and is equipped with the driving pulley 421, two scrape the material roller 43 and rotate and set up in rotating the support frame 41 vertically and arrange along the axial of the second guide arm 231, the top shaft end of the scrape material roller 43 has driven pulleys 431, the drive belt 44 is fitted between driving pulley 421 and two driven pulleys 431; the scraping roller 43 is provided with a plurality of scraping blades 432 equidistantly distributed around the circumference of the roller shaft, and the adjacent scraping blades 432 are in arc transition connection (the scraped slurry is collected in the gap between the two adjacent scraping blades 432, the arc transition is convenient for blanking, and the consolidation in the gap is avoided).

After smearing the ground paste evenly through smearing the even board 3, scrape flat mechanism 4 will strike off unnecessary ground paste for the ground paste only fills up the gap that collapses can, when scraping the operation, it is concrete, will drive driving pulley 421 after starting scraping motor 42 and rotate, driving pulley 421 will drive two driven pulleys 431 along with its synchronous rotation through drive belt 44, thereby drive two scraping roller 43 synchronous rotations, scraping roller 43 will strike off unnecessary ground paste through doctor-bar 432 at the rotation in-process, and the ground paste of striking off will be collected temporarily between the groove of two adjacent doctor-bars 432 and deliver to blanking slide 11 along with the rotation in-process with the ground paste on.

The recovery bucket 1 is provided with a shutter 12. During the repair process, the redundant slurry falls into the recovery bucket 1 along the blanking sliding plate 11, and the slurry in the recovery bucket 1 can be cleaned by drawing out the flashboard 12.

Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described in detail herein. Such variations do not affect the essence of the present invention and are not described herein.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; it will be understood by those skilled in the art that various changes and modifications may be made, or equivalents may be modified, without departing from the spirit of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims

1. A method for forming a refractory aerated concrete block is characterized by comprising the following steps: the forming method specifically comprises the following steps:

the method for forming the fireproof aerated concrete block comprises the steps of S1-S4, and further specifically relates to a device for forming and repairing the fireproof aerated concrete block in the process of forming and processing the aerated concrete block, wherein the device comprises a recovery hopper (1) for recovering slurry, an intermittent material smearing mechanism (2) for smearing slurry, a uniform smearing plate (3) for uniformly smearing the slurry and a scraping mechanism (4) for scraping off redundant slurry, the recovery hopper (1) is of a rectangular pocket frame structure, a blanking sliding plate (11) convenient for recovering and sliding the slurry is arranged on the recovery hopper (1), and the intermittent material smearing mechanism (2), the uniform smearing plate (3) and the scraping mechanism (4) are all arranged on the blanking sliding plate (11) and are sequentially arranged along a horizontal straight line direction; wherein:

the intermittent material smearing mechanism (2) comprises a cubic stock bin (21), an intermittent material pushing mechanism (22) and a sealing plate assembly (23), the stock bin (21) is fixedly installed on the blanking sliding plate (11), a gap for facilitating slurry to pass through is reserved between the bottom of the stock bin (21) and the blanking sliding plate (11), and the stock bin (21) is divided into a material pushing area (211) provided with the intermittent material pushing mechanism (22) and a material storage area (212) used for storing the slurry;

intermittent type pushing equipment (22) including pushing away material motor (221), cam roller (222), scraping wings (223), guide arm (224) and extension spring (225), push away material motor (221) fixed mounting in the bottom of pushing away material district (211), cam roller (222) be located push away material district (211) and the axle head with the vertical fixed connection of output shaft that pushes away material motor (221), the cross-section of cam roller (222) is the cam form, scraping wings (223) horizontal slip sets up in feed bin (21) and will feed bin (21) divide into push away material district (211) and storage area (212), cam roller (222) with the lateral wall contact of scraping wings (223), fixedly connected with on the lateral wall of scraping wings (223) a plurality of with push away material district (211) lateral wall horizontal slip setting guide arm (224), each first guide rod (224) is sleeved with a first tension spring (225), and two ends of each first tension spring (225) are fixed between the side wall of the material pushing plate (223) and the side wall of the material pushing area (211);

the material pushing plate (223) is provided with lateral extending lugs (2231) extending out of the stock bin (21) at two sides, the material storage area (212) is provided with a material outlet facing the lateral position of the material pushing plate (223) in the sliding direction, two sealing plate assemblies (23) which are arranged in mirror symmetry and are used for matching and sealing the material outlet are arranged at the material outlet, each sealing plate assembly (23) comprises a plurality of second guide rods (231) vertically and fixedly installed on the outer side wall of the material storage area (212), a plurality of discharging sealing plates (232) horizontally and slidably arranged on the second guide rods (231), a plurality of one-to-one corresponding second tension springs (233) sleeved on the second guide rods (231) and wedge blocks (234) fixedly installed on the lateral extending lugs (2231) at the same side position, the axial direction of the second guide rods (231) is perpendicular to the movement direction of the material pushing plate (223), ejection of compact shrouding (232) paste and tightly set up the discharge gate end, No. two extension spring (233) both ends fixed connection be in storage area (212) lateral wall with between ejection of compact shrouding (232), be provided with on the inside wall of ejection of compact shrouding (232) gyro wheel (2321), gyro wheel (2321) are located the place ahead position of voussoir (234), the front end of voussoir (234) be for with the inclined plane of gyro wheel (2321) contact, work as voussoir (234) are towards being close to during the direction motion of ejection of compact shrouding (232), ejection of compact shrouding (232) will be opened the discharge gate.

2. The method for forming a refractory aerated concrete block according to claim 1, wherein the method comprises the following steps: scrape mechanism (4) including rotating support frame (41), scraping material motor (42), two scraping material roller (43) and drive belt (44), rotating support frame (41) fixed mounting be in on blanking slide (11), scrape material motor (42) fixed mounting be in the top bottom position of rotating support frame (41), be equipped with driving pulley (421) on the output shaft of scraping material motor (42), two scrape the equal vertical rotation setting of material roller (43) and be in rotate support frame (41) and follow the axial arrangement setting of No. two guide arms (231), the top axle head of scraping material roller (43) is provided with driven pulley (431), driving pulley (421) and two are established to drive belt (44) cover between driven pulley (431).

3. The method for forming a refractory aerated concrete block according to claim 2, wherein: a plurality of scraping blades (432) are equidistantly distributed on the scraping roller (43) relative to the circumference of the roller shaft, and the adjacent scraping blades (432) are in arc transition connection.

4. The method for forming a refractory aerated concrete block according to claim 1, wherein the method comprises the following steps: the uniform smearing plate (3) is fixedly arranged on the blanking sliding plate (11) through a fixing plate, and the uniform smearing plate (3) is inclined relative to the material pushing plate (223) and is deviated to one side of the strickling mechanism (4).

5. The method for forming a refractory aerated concrete block according to claim 1, wherein the method comprises the following steps: the top end of the storing area (212) is provided with a feeding guide plate (2121) which is convenient for throwing slurry.

6. The method for forming a refractory aerated concrete block according to claim 1, wherein the method comprises the following steps: the blanking sliding plate (11) extends forwards relative to the intermittent trowelling mechanism (2), the trowelling plate (3) and the strickling machine.

7. The method for forming a refractory aerated concrete block according to claim 1, wherein the method comprises the following steps: the recovery hopper (1) is provided with a gate plate (12).