Cement pole steam curing equipment based on energy-saving building materials and its steam curing method

Abstract

The present invention relates to the technical field of steam curing of cement poles, specifically to a steam curing device and a steam curing method for cement poles based on energy-saving building materials, including a steam curing pit part. The steam curing pit part includes a triangular pit groove, a steel mold, a main cover plate and an additional cover plate. A steam pipe is slidably connected behind the triangular pit groove, and a rotating jet ring is rotatably sleeved on the steam pipe. An opening and closing mechanism is arranged in front of the triangular pit groove. By splicing an appropriate amount of additional cover plates on the main cover plate, the steam curing space of the triangular pit groove can be reduced and closed as required; the steam pipe is slid and inserted into the opening and closing mechanism, thereby clamping the steam pipe and simultaneously connecting the steam, and then the steam is sprayed out by rotating the rotating jet ring, so as to uniformly steam cure the steel mold wrapped with cement poles, realizing that the size of the steam curing space can be controlled according to the different numbers of cement poles, improving the steam curing efficiency and the quality of cement poles, and saving steam energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of steam curing of cement poles, and specifically to a steam curing device and a steam curing method for cement poles based on energy-saving building materials. Background Technique

[0002] Electric poles are generally used for erecting high-voltage electricity or communication equipment. Currently, electric poles with high strength and durability generally use metal materials, but their cost is relatively high. To reduce production costs, in some suitable cases, energy-saving cement materials can still be used to replace the more expensive metal materials to produce cement poles. Cement poles are generally hollow cylindrical and are tied with steel bars inside. After the cement poles are centrifugally formed in the steel mold, in order to accelerate the hardening speed of the cement in the pole body, improve the turnover rate of the steel mold, and shorten the production cycle, it is often necessary to artificially use steam to carry out steam curing treatment on them.

[0003] The patent with the application number CN219294282U discloses a steam curing pool for cement electric poles, which relates to the technical field of cement electric poles. This steam curing pool for cement electric poles includes an operation pool, a steam mechanism, and a temperature-raising mechanism. A drain pipe is fixedly connected to the bottom of the operation pool, an inclined plate is fixedly connected to the inner bottom of the operation pool, a third fixing block is fixedly connected to the inner wall of the operation pool, a hole plate is arranged on the third fixing block, and an observation window is inlaid on the front side of the operation pool. Different from the traditional steam curing pool, on the one hand, a large opening is provided in the bearing plate, so as to avoid the situation that the dropped cement blocks the steam port. On the other hand, this device is provided with a hole plate, which can effectively block the dropped cement and avoid the situation of blocking the drain pipe. At the same time, this device can be disassembled, which is convenient for the staff to clean the cement in the operation pool in time after each steam curing, reducing the cement residue.

[0004] This patent does effectively block the dropped cement through the setting of the hole plate and avoid the situation of blocking the drain pipe. However, the number of its placement components is fixed, and the number of cement poles for steam curing is fixed. Especially when the number of cement poles for steam curing is small, there is a situation of wasting steam due to too large a steam curing space, that is, the steam utilization rate is low, and the too large space will increase the energy consumption of producing steam. Summary of the Invention

[0005] The purpose of the present invention is to provide a steam curing device and a steam curing method for cement poles based on energy-saving building materials to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, on the one hand, the present invention provides the following technical solutions:

[0007] The steam curing equipment for cement poles based on energy-saving building materials comprises a steam curing pit part, the steam curing pit part comprises a triangular pit groove, a steel mold placed in the triangular pit groove, a main cover plate for closing the steel mold, an additional cover plate, a main slide plate slidably connected under the main cover plate, and an auxiliary slide plate slidably connected under the additional cover plate, the rear end of the triangular pit groove is provided with an automatic pipe insertion part, and the front end of the triangular pit groove is provided with a steam input part;

[0008] The automatic insertion part includes a storage groove docked at the rear end of the triangular pit groove, a plurality of steam pipes slidably connected to the storage groove, a plurality of limit rollers for stabilizing and sliding the steam pipes, and a servo motor for driving the limit rollers. The steam pipe is provided with a plurality of outer ring grooves, a plurality of air delivery ports are provided on the curved groove bottom of the outer ring groove, a rotating jet ring is rotatably sleeved in the outer ring groove, and a plurality of oblique jet channels connected to the corresponding air delivery ports are provided on the rotating jet ring;

[0009] The steam input part includes a steam enrichment chamber for blocking the front end of the triangular pit, a plurality of steam delivery holes evenly arranged on the rear side of the steam enrichment chamber, a steam input pipe connected to the front side wall of the steam enrichment chamber, and an opening and closing mechanism arranged at the steam delivery hole for cooperating with the steam pipe;

[0010] The opening and closing mechanism includes a flat shell buried in the rear side wall of the steam enrichment chamber, a butt pipe connected to the rear side of the flat shell, a carrier shell symmetrically arranged at both ends of the flat shell, an intermediate slider slidably connected to the carrier shell, a top gear rotatably connected to the intermediate slider, a top-to-top sliding rack slidably connected to the carrier shell, a bottom gear rotatably connected under the top-to-top sliding rack, a bottom sliding rack slidably connected to the carrier shell, a semicircular steam cover fixedly arranged on the front side of the bottom sliding rack for opening and closing the corresponding steam delivery hole, and a clamping flap fixedly arranged at the rear end of the carrier shell; a top fixed tooth is fixed on the carrier shell, and the top fixed tooth is meshed with the top gear, and the top gear is also meshed with the top-to-top sliding rack; a bottom fixed tooth is fixed on the carrier shell, and the bottom fixed tooth is meshed with the bottom gear, and the bottom gear is also meshed with the bottom sliding rack;

[0011] A track bar is fixedly provided at one end of the middle slider close to the steam supply hole, and a trapezoidal slider is slidably connected to the track bar. A plurality of blocking springs are connected between the trapezoidal slider and the middle slider. When the steam pipe slides forward, the rear side surface of the trapezoidal slider can completely contact the front end of the corresponding steam pipe.

[0012] In the technical solution of the present invention, the triangular pit groove is in the shape of a triangular prism, and its cross-section is an equilateral triangle. The plane where the notch of the triangular pit groove is located is flush with the ground; the longitudinal cross-section of the main cover plate is an isosceles trapezoid, and the included angle between its left and right side surfaces is 60 degrees. A plurality of the additional cover plates are fixedly installed on one side of the main cover plate by continuous splicing with bolts. The whole formed by the main cover plate and all the additional cover plates is in the same plane, and the included angle between its left and right side surfaces is always 60 degrees.

[0013] In the technical solution of the present invention, a plurality of cover plate sliding grooves are equidistantly arranged at the bottom of the main cover plate and the additional cover plates. A plurality of cover plate sliding strips corresponding to the number of the cover plate sliding grooves are welded and fixed on the top surfaces of the main sliding plate and the auxiliary sliding plate. The middle part of the cover plate sliding strip is thinner than the upper and lower ends. The rear end of the cover plate sliding strip is connected with a steel wire rope, and the end of the steel wire rope is connected with a pulling handle; the lengths and thicknesses of the main sliding plate and the auxiliary sliding plate are equal. The length of the cover plate sliding groove is greater than the length of the main sliding plate, and the length of the steel wire rope is greater than the vertical distance between the rear end of the cover plate sliding strip and the rear end of the main sliding plate.

[0014] In the technical solution of the present invention, the storage groove is in the shape of a triangular prism corresponding to the triangular pit groove. The notch of the storage groove is covered with a storage groove cover. A clamping joint is fixedly arranged at the front end of the steam pipe; the automatic pipe inserting part further includes a support cylinder frame and a filling frame. All the steam pipes are slidably inserted into the support cylinder frame. The filling frame is provided with holes corresponding to each clamping joint. The filling frame and the support cylinder frame are both fixed in the front-end groove of the storage groove by bolts. The support cylinder frame is located behind the filling frame and the two are in contact with each other; the length of the steam pipe is greater than the length of the steel mold;

[0015] The steam pipe is in the shape of a cylinder, and its front end is open and its rear end is closed. A reset collar is also slidably sleeved on the steam pipe. The clamping joint and the reset collar are both in the shape of a circular ring and their longitudinal cross-sections are both triangular. A limiting convex edge is fixed on the outer side wall of the steam pipe. The reset collar is located between the clamping joint and the limiting convex edge. The maximum outer diameters of the clamping joint and the reset collar are equal. A reset spring is connected between the reset collar and the limiting convex edge, and the reset spring is sleeved on the outside of the steam pipe.

[0016] In the technical solution of the present invention, several of the outer ring grooves are uniformly arranged at equal intervals. A circle of inner ring grooves is formed in the middle of the arc-shaped inner side wall of the rotary jet ring. The air supply ports are always communicated with the corresponding inner ring grooves. A force-bearing cavity for withstanding steam impact and increasing the rotation speed of the rotary jet ring is also formed at one end of the inclined jet air passage close to the corresponding inner ring groove. Several air supply ports on the same outer ring groove are arranged at equal intervals, and the inclined jet air passages and the force-bearing cavities are arranged at equal intervals on the corresponding rotary jet rings.

[0017] In the technical solution of the present invention, a steam input pipe for inputting steam is inserted on the front side wall of the steam enrichment cavity. A plurality of short columns are welded and fixed in a circumferential and equidistant manner at the insertion holes of the steam input pipe in the steam enrichment cavity. The rear ends of all the short columns are welded and fixed to the same dispersion plate for dispersing and shunting steam.

[0018] In the technical solution of the present invention, the limiting rollers are grouped in pairs, and the two limiting rollers in the same group are arranged corresponding to each other up and down and clamped on the upper and lower outer side walls of the corresponding steam pipe. One group of limiting rollers is arranged close to the support cylinder frame and always contacts the corresponding steam pipe. A plurality of servo motors are fixedly installed on the left and right outer side walls of the storage tank through bolts and fixed shells. The lower limiting roller in the group of limiting rollers close to the support cylinder frame is coaxially connected to the output shaft of one of the servo motors. At least one group of limiting rollers is arranged in the middle of the storage tank.

[0019] In the technical solution of the present invention, the top fixed tooth, the top gear, and the top sliding rack are all in the same plane, and the top fixed tooth is parallel to the top sliding rack. A thickening rotating column for staggering the height is arranged between the bottom gear and the top sliding rack. The middle slider, the trapezoidal slider, and the thickening rotating column are in the same plane. The bottom fixed tooth, the bottom gear, and the bottom sliding rack are in the same plane, and the bottom fixed tooth is parallel to the bottom sliding rack. The top sliding rack, the middle slider, and the bottom sliding rack are arranged in a staggered manner.

[0020] Three sliding rods are vertically and fixedly arranged on the inner wall of the carrier shell away from the semi-circular steam cover. The middle slider, the top sliding rack, and the bottom sliding rack are respectively sleeved on one of the sliding rods in a sliding manner. A socket spring is respectively connected between the middle slider, the top sliding rack, and the bottom sliding rack and the inner wall of the carrier shell away from the semi-circular steam cover. The sliding stroke of the middle slider is smaller than the sliding stroke of the top sliding rack, and the sliding stroke of the top sliding rack is smaller than the sliding stroke of the bottom sliding rack.

[0021] In the technical solution of the present invention, a triangular clamping block is slidably connected to the clamping flap. A long slider is vertically fixed to one side of the triangular clamping block parallel to the butt joint pipe. A convex sliding groove for sliding is formed in the clamping flap, and the long slider is slidably connected in the convex sliding groove. Wings are welded and fixed on both sides of the long slider, and the corresponding two wings are slidably inserted symmetrically before and after in the convex sliding groove. A locking spring is connected between the wing and the bottom of the convex sliding groove.

[0022] On the other hand, the present invention also provides a steam curing method for cement poles based on energy-saving building materials, including the following steps:

[0023] S1. First, ensure that the main cover plate is separated from the triangular pit groove. Workers need to lift several cement steel molds that have been centrifuged for loading by a crane and stack them from the bottom layer to the top layer of the triangular pit groove.

[0024] S2. According to the number of layers stacked by the cement steel molds placed in the triangular pit groove, the corresponding number of additional cover plates are spliced and fixed to one side of the main cover plate by bolts, so that after the main cover plate and the additional cover plate are spliced, they can just be placed corresponding to the top layer above the stacked cement steel molds.

[0025] S3. Place the main cover plate and the additional cover plate in the triangular pit groove by a crane, and slide out the main slide plate and the secondary slide plate under the main cover plate and the additional cover plate, so as to completely cover the topmost cement steel mold and completely enclose all the cement steel molds in the triangular pit groove.

[0026] S4. Start the corresponding servo motor where the number of layers of the steel mold is located, so that the corresponding limiting roller rotates to drive the steam pipe to move forward and be inserted into the central cylindrical cavity of the steel mold.

[0027] S5. Subsequently, the steam pipe continues to slide forward. The clamping joint first contacts the triangular clamping block, forcing the two corresponding triangular clamping blocks to gradually open until the thicker rear end of the clamping joint crosses the front side of the triangular clamping block. Then the triangular clamping block slides back to its original position to clamp the rear side of the clamping joint, and then the servo motor is turned off.

[0028] S6. While step S5 occurs, the clamping joint contacts the trapezoidal slider, forcing the intermediate slider to slide in a direction perpendicular to and away from the central axis of the corresponding cement steel mold. Furthermore, the bottom sliding rack drives the semi-circular steam cover to obtain a sliding stroke longer than that of the intermediate slider, so that the steam in the steam enrichment cavity enters the steam pipe.

[0029] S7. After that, steam is introduced into the steam input pipe. The steam enriched in the steam enrichment cavity enters the corresponding steam pipe through the steam supply holes corresponding to the opened semi-circular steam cover. The steam then sprays out from the air supply port and then through the inclined spray air duct. The inclined spray air duct causes the rotary jet ring to rotate and spray steam onto the inner wall of the cement pole.

[0030] S8. After the steam curing is completed, the steam input to the steam input pipe is stopped. At this time, the servo motor is started again to make the steam pipe move forward, the clamping joint pushes the trapezoidal slider to slide forward, and the reset ring passes over the triangular clamping block forward. Then, the servo motor is controlled to drive the steam pipe backward, and the triangular clamping block can pass over the reset ring and the clamping joint, so that the steam pipe can be separated from the engagement mechanism and continue to slide backward; and the corresponding semicircular steam cover is closed accordingly, and the steam pipe is completely pulled out of the steel mold and returned to the storage tank;

[0031] S9. Subsequently, the main slide plate and the auxiliary slide plate are slid open, the main cover plate and the additional cover plate are lifted by a crane, and then the steamed steel mold is taken out from top to bottom in sequence by the crane.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The cement pole steaming curing equipment and steaming curing method based on energy-saving building materials slide the steam pipe forward to make the clamping joint contact the trapezoidal slider, thereby forcing the middle slider to slide, and the top gear is then transmitted to make the top sliding rack obtain a longer sliding stroke than the sliding stroke of the middle slider. Similarly, the bottom sliding rack obtains a longer sliding stroke and drives the semicircular steam cover to slide open, so that the equipment only inserts the corresponding steam pipe at the height of the stacked cement poles to connect the steam, thereby reducing the consumption of steam and improving the utilization rate of steam.

[0034] 2. The cement pole steaming and curing equipment and method based on energy-saving building materials, through the triangular pit grooves, main cover plates and additional cover plates in the steaming and curing pit part, can stack different numbers of steel molds wrapped with cement poles in the triangular pit grooves under the premise of maintaining pit-type steaming. Afterwards, the main cover plate and the additional cover plate can be covered near the top of the uppermost stacked steel molds, thereby compressing the steaming and curing space of the triangular pit grooves, reducing steam consumption, indirectly improving the speed of reaching the required steaming and curing environment, and can meet the steaming and curing of different numbers of cement poles at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0036] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0037] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0038] Figure 3 Schematic structural diagram of the steam input part in the present invention;

[0039] Figure 4 Longitudinal sectional structural diagram of the steam input part in the present invention;

[0040] Figure 5 Schematic structural diagram of the opening and closing mechanism in the present invention;

[0041] Figure 6 One of the partial split structural diagrams of the opening and closing mechanism in the present invention;

[0042] Figure 7 Schematic structural diagram of the top sliding rack in the present invention;

[0043] Figure 8 Another partial split structural diagram of the opening and closing mechanism in the present invention;

[0044] Figure 9 In the present invention Figure 8 Partial enlarged view at position B;

[0045] Figure 10 Schematic structural diagram of the intermediate slider and the top gear in the present invention;

[0046] Figure 11 Partial split structural diagram of the automatic intubation part in the present invention;

[0047] Figure 12 In the present invention Figure 11 Partial enlarged view at position A;

[0048] Figure 13 Schematic structural diagram of the steam pipe in the present invention;

[0049] Figure 14 Longitudinal sectional view of the steam pipe in the present invention;

[0050] Figure 15 In the present invention Figure 14 Partial enlarged view at position C;

[0051] Figure 16 Partial split view of the steam pipe in the present invention;

[0052] Figure 17 Sectional structural diagram of the rotary jet ring in the present invention;

[0053] Figure 18 Longitudinal sectional structural diagram of the steam pipe in the present invention;

[0054] Figure 19 Partial structural split diagram of the steam curing pit part in the present invention;

[0055] The meanings of the reference numerals in the figure are as follows:

[0056] 1. Curing pit part; 10. Dip pit groove; 11. Steel mold; 12. Main cover plate; 13. Additional cover plate; 14. Main slide plate; 15. Sub-slide plate; 16. Cover plate chute; 17. Cover plate slide bar; 18. Pull handle;

[0057] 2. Automatic pipe insertion part; 20. Storage tank; 200. Storage tank cover; 21. Steam pipe; 210. Outer ring groove; 211. Air supply port; 212. Connector; 213. Limit convex edge; 214. Reset collar; 215. Reset spring; 22. Rotating jet ring; 220. Inner ring groove; 221. Inclined jet airway; 222. Stress cavity; 23. Limit roller; 231. Servo motor; 232. Fixed shell; 24. Support cylinder frame; 25. Filling frame;

[0058] 3. Steam input part; 30. Steam enrichment cavity; 300. Steam supply hole; 301. Steam input pipe; 302. Short column; 303. Dispersion plate; 31. Opening and closing mechanism; 310. Flat shell; 311. Docking pipe; 312. Carrier shell; 3121. Top fixed tooth; 3122. Bottom fixed tooth; 3123. Slide bar; 3124. Socket spring; 313. Intermediate slider; 3130. Track bar; 3131. Trapezoidal slider; 3132. Blocking spring; 314. Top gear; 315. Top sliding rack; 3150. Thickening rotating column; 3151. Bottom gear; 316. Bottom sliding rack; 317. Semi-circular steam cover; 318. Clamping flap; 3180. Convex chute; 3181. Long slider; 3182. Triangular clamping block; 3183. Wing block; 3184. Locking spring. Detailed implementation manners

[0059] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0060] Please refer to Figures 1-19 as shown, this embodiment provides a technical solution:

[0061] The cement pole steaming equipment based on energy-saving building materials comprises a steaming pit 1, the steaming pit 1 comprises a triangular pit 10, a steel mold 11 placed in the triangular pit 10, a main cover plate 12 for closing the steel mold 11, an additional cover plate 13, a main slide plate 14 slidably connected under the main cover plate 12, and an auxiliary slide plate 15 slidably connected under the additional cover plate 13, an automatic pipe insertion part 2 is arranged at the rear end of the triangular pit 10, and a steam input part 3 is arranged at the front end of the triangular pit 10;

[0062] The automatic insertion part 2 includes a storage groove 20 docked at the rear end of the triangular pit 10, a plurality of steam pipes 21 slidably connected to the storage groove 20, a plurality of limiting rollers 23 for stabilizing and sliding the steam pipes 21, and a servo motor 231 for driving the limiting rollers 23. The steam pipe 21 is provided with a plurality of outer ring grooves 210, and a plurality of air delivery ports 211 are provided on the curved groove bottom of the outer ring groove 210. A rotating jet ring 22 is rotatably sleeved in the outer ring groove 210, and a plurality of oblique jet channels 221 connected to the corresponding air delivery ports 211 are provided on the rotating jet ring 22.

[0063] The steam input part 3 includes a steam enrichment chamber 30 for blocking the front end of the triangular pit 10, a plurality of steam delivery holes 300 evenly arranged on the rear side of the steam enrichment chamber 30, a steam input pipe 301 connected to the front side wall of the steam enrichment chamber 30, and an opening and closing mechanism 31 arranged at the steam delivery hole 300 for cooperating with the steam pipe 21;

[0064] The opening and closing mechanism 31 includes a flat shell 310 buried in the rear side wall of the steam enrichment chamber 30, a butt joint 311 connected to the rear side of the flat shell 310, a carrier shell 312 symmetrically arranged at both ends of the flat shell 310, a middle slider 313 slidably connected to the carrier shell 312, a top gear 314 rotatably connected to the middle slider 313, a top sliding rack 315 slidably connected to the carrier shell 312, a bottom gear 3151 rotatably connected under the top sliding rack 315, and a bottom sliding rack 316 slidably connected to the carrier shell 312. , a semicircular steam cover 317 fixedly arranged on the front side of the bottom sliding rack 316 for opening and closing the corresponding steam delivery hole 300, and a clamping flap 318 fixedly arranged on the rear end of the carrier shell 312; a top fixed tooth 3121 is fixed on the carrier shell 312, and the top fixed tooth 3121 is meshed with the top gear 314, and the top gear 314 is also meshed with the top sliding rack 315; a bottom fixed tooth 3122 is fixed on the carrier shell 312, and the bottom fixed tooth 3122 is meshed with the bottom gear 3151, and the bottom gear 3151 is also meshed with the bottom sliding rack 316;

[0065] One end of the middle slider 313 close to the steam supply hole 300 is fixedly provided with an orbital bar 3130. A trapezoidal slider 3131 is slidably connected to the orbital bar 3130. A number of blocking springs 3132 are connected between the trapezoidal slider 3131 and the middle slider 313. When the steam pipe 21 slides forward, the rear side of the trapezoidal slider 3131 can be in complete contact with the front end of the corresponding steam pipe 21.

[0066] Specifically, the triangular pit 10 is in the shape of a triangular prism, and its cross-section is an equilateral triangle, so as to ensure that after a number of steel molds 11 are stacked, the distance between two adjacent steel molds 11 is equal everywhere, and thus the steam curing is uniform. The plane where the notch of the triangular pit 10 is located is flush with the ground, so as to ensure that the steam heat is difficult to escape from below the triangular pit 10; the longitudinal section of the main cover plate 12 is an isosceles trapezoid, and the included angle between its left and right sides is 60 degrees. A number of additional cover plates 13 are fixedly installed on one side of the main cover plate 12 by continuous splicing with bolts. The whole formed by the main cover plate 12 and all the additional cover plates 13 is in the same plane and the included angle between its left and right sides is always 60 degrees, so that the left and right sides of the main cover plate 12 or the main cover plate 12 splicing the additional cover plate 13 can just contact the two side walls of the triangular pit 10 correspondingly, and thus a completely enclosed steam curing space is formed.

[0067] Preferably, a number of cover plate chutes 16 are equidistantly opened at the bottom of the main cover plate 12 and the additional cover plates 13. A number of cover plate slide bars 17 corresponding to the number of the cover plate chutes 16 are welded and fixed to the top surfaces of the main slide plate 14 and the auxiliary slide plate 15. The middle of the cover plate slide bar 17 is thinner than its upper and lower ends to ensure that the main slide plate 14 and the auxiliary slide plate 15 are difficult to fall off during sliding. The rear end of the cover plate slide bar 17 is connected with a steel wire rope, and the end of the steel wire rope is connected with a pulling handle 18 to facilitate the user to pull out the main slide plate 14 or the auxiliary slide plate 15; the lengths and thicknesses of the main slide plate 14 and the auxiliary slide plate 15 are equal, and the length of the cover plate chute 16 is greater than the length of the main slide plate 14 to ensure that the main slide plate 14 or the auxiliary slide plate 15 can be completely retracted under the main cover plate 12 or the additional cover plate 13, and thus will not be blocked by the opening and closing mechanism 31 during installation; the length of the steel wire rope is greater than the vertical distance between the rear end of the cover plate slide bar 17 and the rear end of the main slide plate 14, so that the pulling handle 18 does not limit the sliding of the main slide plate 14 or the auxiliary slide plate 15.

[0068] Further, the storage slot 20 is in the shape of a triangular prism corresponding to the switchback slot 10. The slot opening of the storage slot 20 is covered with a storage slot cover 200. A clamping joint 212 is fixedly arranged at the front end of the steam pipe 21. The automatic pipe inserting part 2 further includes a support cylinder frame 24 and a filling frame 25. All the steam pipes 21 are slidably inserted into the support cylinder frame 24. The filling frame 25 is provided with holes corresponding to each clamping joint 212. The filling frame 25 can further compress the steam curing space to enhance the steam curing efficiency. Both the filling frame 25 and the support cylinder frame 24 are fixed in the slot at the front end of the storage slot 20 by bolts. The support cylinder frame 24 is located behind the filling frame 25 and the two are in contact with each other. The length of the steam pipe 21 is greater than the length of the steel mold 11, so that when the steam pipe 21 slides forward to the maximum distance, its tail end is still inserted into the support cylinder frame 24.

[0069] The steam pipe 21 is in the shape of a cylinder, with its front end open and its rear end closed. A reset collar 214 is also slidably sleeved on the steam pipe 21. Both the clamping joint 212 and the reset collar 214 are in the shape of a ring and their longitudinal sections are both triangular. A limiting convex edge 213 is fixed on the outer side wall of the steam pipe 21, and the reset collar 214 is located between the clamping joint 212 and the limiting convex edge 213. The maximum outer diameters of the clamping joint 212 and the reset collar 214 are equal, so as to allow the triangular clamping block 3182 to slide on the outer side wall after the clamping joint 212 and the reset collar 214 are butted. A reset spring 215 is connected between the reset collar 214 and the limiting convex edge 213 to facilitate the reset collar 214 to return to its original position after separating from the triangular clamping block 3182, and the reset spring 215 is sleeved on the outside of the steam pipe 21.

[0070] Specifically, a plurality of outer ring grooves 210 are evenly arranged at equal intervals. An inner ring groove 220 is opened in the middle of the arc inner side wall of the rotary jet ring 22. The air supply port 211 is always communicated with the corresponding inner ring groove 220. A stress cavity 222 for withstanding steam impact and increasing the rotation speed of the rotary jet ring 22 is also opened at one end of the inclined jet airway 221 close to the corresponding inner ring groove 220. A plurality of air supply ports 211 on the same outer ring groove 210 are arranged at equal intervals. The inclined jet airways 221 and the stress cavities 222 are arranged at equal intervals on the corresponding rotary jet rings 22. The inclined jet airways 221 can jet air to drive the rotary jet rings 22 to rotate, so as to evenly spray steam onto the inner wall of the cement pole wrapped in the steel mold 11.

[0071] Preferably, a steam input pipe 301 for inputting steam is inserted on the front side wall of the steam enrichment cavity 30. A plurality of short columns 302 are welded and fixed at equal intervals in a circular shape at the insertion hole of the steam input pipe 301 in the steam enrichment cavity 30. The rear ends of all the short columns 302 are welded and fixed with the same dispersion plate 303 for dispersing and shunting steam, so that the steam in the steam enrichment cavity 30 enters the steam supply holes 300 evenly.

[0072] Furthermore, the limiting rollers 23 are arranged in groups of two, and the two limiting rollers 23 in the same group correspond to each other up and down and are clamped on the upper and lower outer walls of the corresponding steam pipe 21; one group of limiting rollers 23 is arranged close to the supporting drum frame 24 and is always in contact with the corresponding steam pipe 21, and a number of servo motors 231 are fixedly installed on the left and right outer walls of the storage tank 20 by bolts and a fixing shell 232, and the lower limiting rollers 23 in the group of limiting rollers 23 close to the supporting drum frame 24 are all coaxially connected to the output shaft of one of the servo motors 231, thereby driving the steam pipe 21 forward by rolling friction; at least one group of limiting rollers 23 is arranged in the middle part of the storage tank 20 to stabilize and support the rear part of the steam pipe 21.

[0073] Specifically, the top fixed tooth 3121, the top gear 314 and the top sliding rack 315 are all in the same plane, and the top fixed tooth 3121 and the top sliding rack 315 are parallel to each other; a thickened rotating column 3150 for staggering heights is provided between the bottom gear 3151 and the top sliding rack 315, and the middle slider 313, the trapezoidal slider 3131 and the thickened rotating column 3150 are in the same plane; the bottom fixed tooth 3122, the bottom gear 3151 and the bottom sliding rack 316 are in the same plane, and the bottom fixed tooth 3122 and the bottom sliding rack 316 are parallel to each other; Figure 6 In the figure, the top sliding rack 315, the middle sliding block 313 and the bottom sliding rack 316 are staggered so that they slide in three different planes without contacting each other;

[0074] Three sliding rods 3123 are vertically fixed on the inner wall of the carrier shell 312 away from the semicircular steam cover 317, and the middle slider 313, the top sliding rack 315 and the bottom sliding rack 316 are respectively slidably sleeved with a sliding rod 3123; a sleeve spring 3124 is respectively connected between the middle slider 313, the top sliding rack 315 and the bottom sliding rack 316 and the inner wall of the carrier shell 312 away from the semicircular steam cover 317, so that after the steam pipe 21 is detached, the semicircular steam cover 317 The bottom steam supply hole 300 is preferably not provided with a semicircular steam cover 317, so as to quickly change the steam curing environment in the entire triangular pit 10.

[0075] Preferably, a triangular clamping block 3182 is slidably connected to the clamping flap 318. A long slider 3181 is perpendicularly fixed to one side of the triangular clamping block 3182 parallel to the docking pipe 311. A convex sliding groove 3180 for sliding is formed in the clamping flap 318, and the long slider 3181 is slidably connected in the convex sliding groove 3180. Wing blocks 3183 are welded and fixed to both sides of the long slider 3181. The two corresponding wing blocks 3183 are slidably inserted into the convex sliding groove 3180 symmetrically front and back. A locking spring 3184 is connected between the wing block 3183 and the bottom of the convex sliding groove 3180.

[0076] The steam curing method of the cement pole based on energy-saving building materials of the present invention includes the following steps:

[0077] S1. First, ensure that the main cover plate 12 is separated from the triangular pit 10. Workers need to lift several cement steel molds 11 that have been centrifuged for loading by a crane and stack them from the bottom layer to the top layer of the triangular pit 10.

[0078] S2. According to the number of layers stacked by the cement steel molds 11 placed in the triangular pit 10, the corresponding number of additional cover plates 13 are spliced and fixed to one side of the main cover plate 12 by bolts, so that after the main cover plate 12 and the additional cover plate 13 are spliced, they can just be placed corresponding to the top layer after the cement steel molds 11 are stacked.

[0079] S3. Place the main cover plate 12 and the additional cover plate 13 in the triangular pit 10 by a crane, and slide out the main slide plate 14 and the auxiliary slide plate 15 under the main cover plate 12 and the additional cover plate 13, so as to completely cover the topmost cement steel mold 11, and insert the main slide plate 14 and the auxiliary slide plate 15 onto the corresponding opening and closing mechanism 31, thereby completely enclosing all the cement steel molds 11 in the triangular pit 10.

[0080] S4. Start the corresponding servo motor 231 where the number of layers of the corresponding steel mold 11 is located, so that the corresponding limiting roller 23 rotates to drive the steam pipe 21 to move forward and be inserted into the central cylindrical cavity of the steel mold 11.

[0081] S5. Subsequently, the steam pipe 21 continues to slide forward. The clamping joint 212 first contacts the triangular clamping block 3182, forcing the two corresponding triangular clamping blocks 3182 to gradually open until the thicker rear end of the clamping joint 212 crosses the front side of the triangular clamping block 3182. Then the triangular clamping block 3182 slides back to its original position to clamp the rear side of the clamping joint 212, and then the servo motor 231 is turned off.

[0082] S6. While step S5 is occurring, the clamping joint 212 contacts the trapezoidal slider 3131, thereby forcing the intermediate slider 313 to slide in a direction perpendicular to and away from the central axis of the corresponding cement steel mold 11. As a result, the top gear 314 slides and rotates accordingly. The top gear 314 then rubs the top sliding rack 315 away from the central axis of the corresponding cement steel mold 11 through the engagement with the top fixed tooth 3121, enabling the top sliding rack 315 to obtain a sliding stroke longer than that of the intermediate slider 313. Similarly, the bottom gear 3151 rubs the bottom sliding rack 316 through the cooperation with the bottom fixed tooth 3122. Consequently, the bottom sliding rack 316 obtains a sliding stroke longer than that of the top sliding rack 315 and drives the semi-circular steam cover 317 to slide open;

[0083] S7. Subsequently, steam is introduced into the steam input pipe 301. The steam enriched in the steam enrichment chamber 30 enters the corresponding steam pipe 21 through the steam supply holes 300 corresponding to the opened semi-circular steam cover 317. The steam then sprays out from the air supply port 211 and further sprays out through the inclined spray air duct 221. The inclined spray air duct 221 causes the rotary spray ring 22 to rotate and spray steam, thereby energy-savingly and uniformly steam-curing the cement pole inside the cement steel mold 11;

[0084] S8. After the steam-curing is completed, the input of steam into the steam input pipe 301 is stopped. At this time, the servo motor 231 is started again to make the steam pipe 21 move forward. Since the intermediate slider 313 has reached the limit position, the clamping joint 212 pushes the trapezoidal slider 3131 to compress the blocking spring 3132 and slide forward along the track bar 3130. The reset collar 214 then moves forward over the triangular clamping block 3182. Subsequently, the servo motor 231 is controlled to reverse to drive the steam pipe 21 to retreat. The triangular clamping block 3182 drives the reset collar 214 to approach the clamping joint 212. When the reset collar 214 is in full clamping contact with the clamping joint 212, the outer arc walls of the reset collar 214 and the clamping joint 212 are butted to form a continuous curved surface. Thus, the triangular clamping block 3182 can cross over the reset collar 214 and the clamping joint 212 along this continuous curved surface, enabling the steam pipe 21 to disengage from the opening and closing mechanism 31 and continue to slide backward, and the corresponding semi-circular steam cover 317 closes accordingly. The steam pipe 21 then completely withdraws from the steel mold 11 and returns to the storage tank 20;

[0085] S9. Subsequently, the main slide plate 14 and the auxiliary slide plate 15 are slid open. The main cover plate 12 and the additional cover plate 13 are lifted by a hoist, and then the steam-cured steel mold 11 is sequentially taken out from top to bottom by the hoist.

[0086] Moreover, it should be noted that the servo motor 231, the controller, and other components involved in the present invention are all common standard components or components known to those skilled in the art. Their structures and principles can all be learned by those skilled in the art through technical manuals or obtained through conventional experimental methods, and will not be elaborated here.

[0087] Finally, it should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The steam curing equipment for cement poles based on energy-saving building materials is characterized in that: The steam curing pit (1) comprises a triangular pit (10), a steel mold (11) placed in the triangular pit (10), a main cover (12) for closing the steel mold (11), an additional cover (13), a main slide (14) slidably connected to the main cover (12), and an auxiliary slide (15) slidably connected to the additional cover (13), an automatic pipe insertion part (2) is arranged at the rear end of the triangular pit (10), and a steam input part (3) is arranged at the front end of the triangular pit (10); The automatic insertion part (2) comprises a storage groove (20) docked at the rear end of the triangular pit groove (10), a plurality of steam pipes (21) slidably connected to the storage groove (20), a plurality of limiting rollers (23) for stabilizing and sliding the steam pipes (21), and a servo motor (231) for driving the limiting rollers (23); the steam pipe (21) is provided with a plurality of outer ring grooves (210); a plurality of air supply ports (211) are provided on the curved groove bottom of the outer ring groove (210); a rotating jet ring (22) is rotatably sleeved in the outer ring groove (210); and a plurality of oblique jet channels (221) are provided on the rotating jet ring (22) and are connected to the corresponding air supply ports (211); The steam input portion (3) comprises a steam enrichment chamber (30) for blocking the front end of the triangular pit (10), a plurality of steam delivery holes (300) evenly arranged on the rear side of the steam enrichment chamber (30), a steam input pipe (301) connected to the front side wall of the steam enrichment chamber (30), and an opening and closing mechanism (31) arranged at the steam delivery hole (300) for cooperating with the steam pipe (21); The opening and closing mechanism (31) comprises a flat shell (310) buried in the rear side wall of the steam enrichment chamber (30), a butt-jointed tube (311) connected to the rear side of the flat shell (310), a carrier shell (312) symmetrically arranged at both ends of the flat shell (310), an intermediate slider (313) slidably connected to the carrier shell (312), a top gear (314) rotatably connected to the intermediate slider (313), a top sliding rack (315) slidably connected to the carrier shell (312), a bottom gear (3151) rotatably connected under the top sliding rack (315), a bottom sliding rack (316) slidably connected to the carrier shell (312), and a bottom gear (3161) fixedly arranged on the bottom sliding rack (316). A semicircular steam cover (317) for opening and closing the corresponding steam delivery hole (300) and a clamping flap (318) fixedly arranged at the rear end of the carrier shell (312) are provided on the front side of the strip (316); a top fixed tooth (3121) is fixed on the carrier shell (312), and the top fixed tooth (3121) meshes with the top gear (314), and the top gear (314) also meshes with the top sliding rack (315); a bottom fixed tooth (3122) is fixed on the carrier shell (312), and the bottom fixed tooth (3122) meshes with the bottom gear (3151), and the bottom gear (3151) also meshes with the bottom sliding rack (316); One end of the intermediate slider (313) close to the steam delivery hole (300) is fixedly provided with a track bar (3130). A trapezoidal slider (3131) is slidably connected to the track bar (3130). A plurality of blocking springs (3132) are connected between the trapezoidal slider (3131) and the intermediate slider (313). When the steam pipe (21) slides forward, the rear side of the trapezoidal slider (3131) can be completely in contact with the front end of the corresponding steam pipe (21).

2. The steam curing equipment for cement poles based on energy-saving building materials according to claim 1, characterized in that: The triangular pit (10) is in the shape of a triangular prism, and its cross-section is an equilateral triangle. The plane where the notch of the triangular pit (10) is located is flush with the ground. The longitudinal cross-section of the main cover plate (12) is an isosceles trapezoid, and the included angle between its left and right sides is sixty degrees. A plurality of additional cover plates (13) are fixedly installed by continuous splicing with bolts on one side of the main cover plate (12). The whole formed by the main cover plate (12) and all the additional cover plates (13) is in the same plane and the included angle between its left and right sides is always sixty degrees.

3. The steam curing equipment for cement poles based on energy-saving building materials according to claim 2, characterized in that: A plurality of cover plate chutes (16) are equidistantly arranged at the bottom of the main cover plate (12) and the additional cover plates (13). A plurality of cover plate slide bars (17) corresponding to the number of the cover plate chutes (16) are welded and fixed to the top surfaces of the main slide plate (14) and the sub-slide plate (15). The middle part of the cover plate slide bar (17) is thinner than its upper and lower ends. A steel wire rope is connected to the rear end of the cover plate slide bar (17), and the end of the steel wire rope is connected to a pull handle (18). The lengths and thicknesses of the main slide plate (14) and the sub-slide plate (15) are equal. The length of the cover plate chute (16) is greater than the length of the main slide plate (14). The length of the steel wire rope is greater than the vertical distance between the rear end of the cover plate slide bar (17) and the rear end of the main slide plate (14).

4. The steam curing equipment for cement poles based on energy-saving building materials according to claim 3, characterized in that: The storage tank (20) is in the shape of a triangular prism corresponding to the triangular pit (10). The notch of the storage tank (20) is covered with a storage tank cover (200). A clamping joint (212) is fixedly provided at the front end of the steam pipe (21). The automatic pipe inserting part (2) further includes a support cylinder frame (24) and a filling frame (25). All the steam pipes (21) are slidably inserted into the support cylinder frame (24). The filling frame (25) is provided with holes corresponding to each clamping joint (212). The filling frame (25) and the support cylinder frame (24) are both fixed in the front-end groove of the storage tank (20) by bolts. The support cylinder frame (24) is located behind the filling frame (25) and they are in contact with each other. The length of the steam pipe (21) is greater than the length of the steel mold (11). The steam pipe (21) is cylindrical in shape, with its front end open and its rear end closed. A reset collar (214) is slidably sleeved on the steam pipe (21). Both the clamping joint (212) and the reset collar (214) are circular in shape and their longitudinal cross-sections are triangular. A limiting convex edge (213) is fixed on the outer side wall of the steam pipe (21), and the reset collar (214) is located between the clamping joint (212) and the limiting convex edge (213). The maximum outer diameters of the clamping joint (212) and the reset collar (214) are equal. A reset spring (215) is connected between the reset collar (214) and the limiting convex edge (213), and the reset spring (215) is sleeved outside the steam pipe (21).

5. The steam curing equipment for cement poles based on energy-saving building materials according to claim 4, characterized in that: A number of the outer ring grooves (210) are evenly arranged at equal intervals. An inner ring groove (220) is formed in the middle of the arc-shaped inner side wall of the rotary jet ring (22). The air supply port (211) is always communicated with the corresponding inner ring groove (220). A force-bearing cavity (222) for withstanding steam impact and increasing the rotation speed of the rotary jet ring (22) is also formed at one end of the inclined jet air passage (221) close to the corresponding inner ring groove (220). A number of the air supply ports (211) on the same outer ring groove (210) are arranged at equal intervals, and the inclined jet air passages (221) and the force-bearing cavities (222) are evenly arranged on the corresponding rotary jet ring (22).

6. The steam curing equipment for cement poles based on energy-saving building materials according to claim 5, characterized in that: A steam input pipe (301) for inputting steam is inserted into the front side wall of the steam enrichment chamber (30). A number of short columns (302) are welded and fixed in a circumferential and equally spaced manner at the insertion hole of the steam input pipe (301) in the steam enrichment chamber (30). The rear ends of all the short columns (302) are welded and fixed to the same dispersion plate (303) for dispersing and diverting steam.

7. The steam curing equipment for cement poles based on energy-saving building materials according to claim 6, characterized in that: The limiting rollers (23) are grouped in pairs of two. The two limiting rollers (23) in the same group are arranged vertically corresponding to each other and are clamped on the upper and lower outer side walls of the corresponding steam pipe (21). One group of limiting rollers (23) is arranged close to the support cylinder frame (24) and is always in contact with the corresponding steam pipe (21). A number of servo motors (231) are fixedly installed on the left and right outer side walls of the storage tank (20) through bolts and a fixed shell (232). The lower limiting roller (23) in the group of limiting rollers (23) close to the support cylinder frame (24) is coaxially connected to the output shaft of one of the servo motors (231). At least one group of limiting rollers (23) is arranged in the middle of the storage tank (20).

8. The steam curing equipment for cement poles based on energy-saving building materials according to claim 7, characterized in that: The top fixed teeth (3121), the top gear (314), and the top sliding rack (315) are all in the same plane, and the top fixed teeth (3121) are parallel to the top sliding rack (315); a thickening rotating column (3150) for staggering the height is provided between the bottom gear (3151) and the top sliding rack (315), and the intermediate slider (313), the trapezoidal slider (3131), and the thickening rotating column (3150) are in the same plane; the bottom fixed teeth (3122), the bottom gear (3151), and the bottom sliding rack (316) are in the same plane, and the bottom fixed teeth (3122) are parallel to the bottom sliding rack (316); the top sliding rack (315), the intermediate slider (313), and the bottom sliding rack (316) are arranged staggeredly. Three sliding rods (3123) are vertically and fixedly arranged on the inner wall of the carrier shell (312) far from the semi-circular steam cover (317), and the intermediate slider (313), the top sliding rack (315), and the bottom sliding rack (316) are respectively sleeved with one of the sliding rods (3123) in a sliding manner; a socket spring (3124) is respectively connected between the intermediate slider (313), the top sliding rack (315), the bottom sliding rack (316) and the inner wall of the carrier shell (312) far from the semi-circular steam cover (317); the sliding stroke of the intermediate slider (313) is less than the sliding stroke of the top sliding rack (315), and the sliding stroke of the top sliding rack (315) is less than the sliding stroke of the bottom sliding rack (316).

9. The steam curing equipment for cement poles based on energy-saving building materials according to claim 8, characterized in that: A triangular clamping block (3182) is slidably connected to the clamping flap (318), a long slider (3181) is vertically and fixedly arranged on one side of the triangular clamping block (3182) parallel to the docking pipe (311), a convex sliding groove (3180) for sliding is formed on the clamping flap (318), and the long slider (3181) is slidably connected in the convex sliding groove (3180); wing blocks (3183) are welded and fixed on both sides of the long slider (3181), and the corresponding two wing blocks (3183) are slidably inserted into the convex sliding groove (3180) symmetrically before and after, and a locking spring (3184) is connected between the wing block (3183) and the bottom of the convex sliding groove (3180).

10. A steam curing method for cement poles based on energy-saving building materials, using the steam curing equipment for cement poles based on energy-saving building materials described in claim 9, characterized in that: Including the following steps: S1. First, ensure that the main cover plate (12) is separated from the triangular pit groove (10). Workers need to lift several cement steel molds (11) that have been centrifuged for loading by a hoist and stack them from the bottom layer to the top layer of the triangular pit groove (10). S2. According to the number of layers stacked by the cement steel molds (11) placed in the triangular pit groove (10), a corresponding number of additional cover plates (13) are fixedly spliced to one side of the main cover plate (12) by bolts, so that after the main cover plate (12) and the additional cover plate (13) are spliced, they can just be placed corresponding to the top layer after the cement steel molds (11) are stacked. S3. Place the main cover plate (12) and the additional cover plate (13) into the triangular pit (10) by a hoist, and slide out the main slide plate (14) and the auxiliary slide plate (15) under the main cover plate (12) and the additional cover plate (13), so as to completely cover the topmost cement steel formwork (11) and completely enclose all the cement steel formworks (11) in the triangular pit (10); S4. Start the corresponding servo motor (231) where the number of layers of the corresponding steel formwork (11) is located, so that the corresponding limit roller (23) rotates to drive the steam pipe (21) to move forward and insert into the central cylindrical cavity of the steel formwork (11); S5. Subsequently, the steam pipe (21) continues to slide forward. The clamping joint (212) first contacts the triangular clamping block (3182), forcing the two corresponding triangular clamping blocks (3182) to gradually open until the thicker rear end of the clamping joint (212) crosses the front side of the triangular clamping block (3182). Then the triangular clamping block (3182) slides back to its original position to clamp the rear side of the clamping joint (212), and then the servo motor (231) is turned off; S6. At the same time as step S5 occurs, the clamping joint (212) contacts the trapezoidal slider (3131), forcing the intermediate slider (313) to slide vertically and away from the central axis of the corresponding cement steel formwork (11). Furthermore, the bottom sliding rack (316) drives the semi-circular steam cover (317) to obtain a sliding stroke longer than that of the intermediate slider (313), so that the steam in the steam enrichment cavity (30) enters the steam pipe (21); S7. After that, steam is introduced into the steam input pipe (301). The steam enriched in the steam enrichment cavity (30) enters the corresponding steam pipe (21) from the corresponding steam supply holes (300) of the opened semi-circular steam cover (317). The steam then sprays out from the air supply port (211) and then through the inclined spray air duct (221). The inclined spray air duct (221) causes the rotating spray ring (22) to rotate and spray steam onto the inner wall of the cement pole; S8. After the steam curing is completed, stop introducing steam into the steam input pipe (301). At this time, start the servo motor (231) again to make the steam pipe (21) move forward. The clamping joint (212) pushes the trapezoidal slider (3131) to slide forward. The reset collar (214) moves forward past the triangular clamping block (3182). Then control the servo motor (231) to drive the steam pipe (21) to retreat. The triangular clamping block (3182) can cross the reset collar (214) and the clamping joint (212), so that the steam pipe (21) can disengage from the opening and closing mechanism (31) and continue to slide backward; and the corresponding semi-circular steam cover (317) closes accordingly. The steam pipe (21) is then completely withdrawn from the steel formwork (11) and returned to the storage tank (20); S9. Subsequently, slide open the main slide plate (14) and the auxiliary slide plate (15), lift the main cover plate (12) and the additional cover plate (13) by a hoist, and then sequentially take out the steam-cured steel formworks (11) from top to bottom by the hoist.

Images