Electric heating blast constant temperature drying box for concrete production

Abstract

The application relates to the technical field of concrete production equipment, and particularly discloses an electric heating air blowing constant-temperature drying box for concrete production. The electric heating air blowing constant-temperature drying box comprises a linkage long column, the bottom of the linkage long column is fixedly connected with a driving motor, the outer side of the driving motor is sleeved and fixedly connected with a sleeve type long slide plate, the two sides of the sleeve type long slide plate are fixedly connected with side clamping plates, the outer side of the linkage long column is sleeved and fixedly connected with a layered circular plate, the top of the layered circular plate is provided with ventilation round holes, the outer side of the linkage long column is fixedly connected with a storage mechanism, and the top and the bottom of the layered circular plate are fixedly connected with arc-shaped protective baffle plates. The electric heating air blowing constant-temperature drying box is provided with multiple ventilation round holes in the layered circular plate, so that hot air can flow between the multiple layered circular plates to sufficiently dry the concrete samples, and the hot air is prevented from being difficult to flow between the layered circular plates, so that the concrete samples between the layered circular plates can be prevented from being difficult to fully contact with the hot air, and the drying effect is affected.

Description

TECHNICAL FIELD

[0001] The present application relates to concrete production equipment technical field, specifically to a kind of electric heating blast constant temperature drying oven for concrete production. BACKGROUND

[0002] Concrete is one of the most important civil engineering materials in contemporary, it is a kind of artificial stone that is made of cementitious materials, granular aggregate, water and necessary additives and admixtures, according to certain proportion, uniform stirring, compaction, curing and hardening, in order to ensure the characteristics of concrete, concrete performance test needs to be carried out in laboratory before mass production, the test method is generally to make concrete sample according to the corresponding proportion, and the performance of concrete is tested by the prepared concrete sample, in the process of making concrete sample, electric heating blast constant temperature drying oven is usually used to dry the concrete raw material sample, its working principle is that heat energy is generated by electric heating element, and the heated air is uniformly circulated to each corner of the box by fan, so that the temperature in the box is uniformly distributed, thereby the concrete raw material sample is dried;

[0003] The existing drying oven usually sets multiple baking racks to dry multiple concrete samples at the same time, but the multiple baking racks are stacked and placed, which can block the hot air and cause the hot air to be difficult to fully contact with the concrete samples between the baking racks, thereby affecting the drying effect, therefore, the present application provides an electric heating blast constant temperature drying oven for concrete production. SUMMARY

[0004] To solve the above technical problems, the present application provides an electric heating blast constant temperature drying oven for concrete production, which comprises a square drying box body, a top-mounted dust screen circular plate is fixedly connected to the inner wall of the square drying box body, an electric fan is rotatably connected to the bottom of the top-mounted dust screen circular plate through a rotating bolt, an electric heating plate is fixedly connected to the inner wall of the square drying box body, a horizontal electric sliding rail is fixedly connected to the inner wall of the square drying box body, a plurality of baking rack devices are slidably connected to one side of the horizontal electric sliding rail, a vertical bottom column is fixedly connected to the bottom of the square drying box body, an arc-shaped toothed hole is formed in the bottom of the square drying box body, a mortar cleaning device is fixedly connected to the bottom of the square drying box body, side-opening long sliding holes are formed in both sides of the square drying box body, and a pull-type box door is rotatably connected to one side of the square drying box body through a rotating bolt.

[0005] The multi-layer drying rack device comprises a linkage long column, the bottom of the linkage long column is fixedly connected with a driving motor, the outer side of the driving motor is sleeved and fixedly connected with a sleeve long slide plate, the two sides of the sleeve long slide plate are fixedly connected with side clamping plates, the outer side of the linkage long column is sleeved and fixedly connected with layered circular plates, and the top of the layered circular plate is provided with ventilation round holes.

[0006] The electric heating plates are provided in plurality, and are distributed on the inner wall of the square drying box below the electric fan, the outer side of the multi-layer drying rack device is slidably connected with the inner wall of the side-open long slide hole, and the arc-shaped tooth-shaped holes are provided in two, and are distributed on the bottom of the square drying box.

[0007] The outer side of the sleeve long slide plate is slidably connected with the inner wall of the side-open long slide hole, and the outer side of the layered circular plate is slidably connected with one side of the transverse electric slide rail.

[0008] The layered circular plates are provided in plurality, and are distributed on the linkage long column, and the ventilation round holes are provided in plurality and are distributed on the layered circular plates.

[0009] The outer side of the linkage long column is fixedly connected with a material storage mechanism, the top and the bottom of the layered circular plate are fixedly connected with arc-shaped protective baffles, the arc-shaped protective baffles on the top and the bottom of the layered circular plate cover the transverse electric slide rail on the outer side of the layered circular plate, so that a large amount of mud blown by hot air is prevented from flowing into the inner side of the transverse electric slide rail and accumulating, thereby affecting the use of the transverse electric slide rail, the outer side of the linkage long column is fixedly connected with a triangular long scraping rod, the triangular long scraping rod is rotated to scrape and clean the top of the layered circular plate, so that too much mud attached to the position without the ventilation round hole on the layered circular plate is prevented from being difficult to handle and affecting the subsequent use, and the end of the triangular long scraping rod away from the linkage long column is fixedly connected with a vertical triangular scraping block, the vertical triangular scraping block is rotated with the triangular long scraping rod to scrape and clean the inner side of the arc-shaped protective baffle, so that mud in the inner side area of the arc-shaped protective baffle is prevented from being difficult to clean and causing the ventilation round hole to be blocked and affecting the ventilation effect when the mud is not handled in time and accumulates too much.

[0010] The material storage mechanisms are provided in plurality and are distributed on the outer side of the linkage long column, and the triangular long scraping rods are provided in plurality and are distributed on the outer side of the linkage long column at the position of the top of the layered circular plate.

[0011] Further, the material storage mechanism comprises an outer connecting round rod, one end of the outer connecting round rod is fixedly connected with an outer circular concave shell, the outer circular concave shell is arranged outside the inner circular concave shell, so that the hot air flows in the area, and each surface of the concrete sample is uniformly heated, preventing the top of the concrete sample from being in contact with the hot air during drying, which causes uneven heating of the concrete sample and affects the drying effect, a through mortar round hole is formed in the bottom of the outer circular concave shell, a plurality of through mortar round holes are arranged in the inner wall of the outer circular concave shell, which facilitates the timely discharge of mortar, prevents the mortar flowing with the hot air from gradually accumulating between the outer circular concave shell and the inner circular concave shell, and is difficult to handle, an upper top spring is fixedly connected to the inner wall bottom of the outer circular concave shell, the top of the upper top spring is fixedly connected with the inner circular concave shell, the inner wall of the inner circular concave shell is slidably connected with an inner circular slide plate, the inner circular slide plate is arranged on the inner wall bottom of the inner circular concave shell to move relatively, so as to quickly demold and unload the concrete sample, preventing the dried concrete sample from being adhered to the inner wall of the inner circular concave shell, which causes the concrete sample to be easily damaged during demolding and unloading, the bottom of the inner circular slide plate is fixedly connected with a bottom penetrating rod, the through mortar round hole is provided with a plurality of through mortar round holes, and the plurality of through mortar round holes are distributed on the bottom of the outer circular concave shell, the bottom of the bottom penetrating rod penetrates the inner circular concave shell and is slidably connected with the inner circular concave shell, and the bottom of the bottom penetrating rod is fixedly connected with the inner wall of the outer circular concave shell.

[0012] Further, the mortar cleaning device comprises an annular electric sliding rail, an inner long connecting plate is rotatably connected to the inner side of the annular electric sliding rail, a top connecting circular block is fixedly connected to the top of the inner long connecting plate, an arc-shaped toothed scraper is fixedly connected to the top of the top connecting circular block, a fine scraping rod one is fixedly connected to the outer side of the arc-shaped toothed scraper, and a fine scraping rod two is fixedly connected to the inner side of the arc-shaped toothed scraper, so that the fine scraping rod one and the fine scraping rod two are scraped when the arc-shaped toothed scraper rotates, preventing the mortar that is cleaned and falls from continuously accumulating on the inner wall bottom of the square drying box and being difficult to handle, affecting use, a bottom connecting cylinder is fixedly connected to the bottom of the inner long connecting plate, and an inclined scraper is fixedly connected to the outer side of the bottom connecting cylinder, so that the scraped mortar is gradually discharged to the outside of the square drying box through the inclined surface of the inclined scraper, preventing the scraped mortar from always accumulating in the bottom area of the square drying box and being difficult to be secondarily processed, the arc-shaped toothed scraper is rotated to a position aligned with the arc-shaped toothed hole to block the arc-shaped toothed hole, preventing the hot air in the square drying box from being discharged in large quantities from the arc-shaped toothed hole, causing the internal temperature of the square drying box to be difficult to reach a constant temperature state, and affecting the drying effect, the top of the annular electric sliding rail is fixedly connected with the bottom of the square drying box, the top connecting circular block is provided with two, and the two top connecting circular blocks are distributed on the inner long connecting plate, and the inclined scraper is provided with three, and the three inclined scrapers are distributed on the outer side of the bottom connecting cylinder.

[0013] The application provides a concrete production electric heating air blowing constant temperature drying box.

[0014] 1. The concrete production electric heating air blowing constant temperature drying box, by setting multiple ventilation round holes on the layered round plate, the hot air flows in the multiple layered round plates, the concrete samples are fully dried, the hot air cannot flow between the multiple layered round plates, the concrete samples between the multiple layered round plates cannot be fully contacted with the hot air, and the drying effect is affected; the outer round concave shell is arranged outside the built-in round concave shell, the hot air flows slowly in the area, the concrete samples are uniformly heated, only the top of the concrete sample is contacted with the hot air during drying, the concrete sample is unevenly heated, and the drying effect is affected; the thin scraper rod one and the thin scraper rod two are scraped on the inner wall bottom of the square drying box body during rotation of the arc-shaped toothed scraper, and the inner wall bottom of the square drying box body is cleaned, the accumulated mortar is prevented from being difficult to handle and affecting use.

[0015] 2. The concrete production electric heating air blowing constant temperature drying box is provided with a plurality of drying rack devices, a plurality of ventilation round holes are arranged on the layered round plate, the hot air flows in the multiple layered round plates, the concrete samples are fully dried, the hot air cannot flow between the multiple layered round plates, the concrete samples between the multiple layered round plates cannot be fully contacted with the hot air, and the drying effect is affected; the arc-shaped protective baffle at the top and the bottom of the layered round plate covers the lateral electric slide rail outside the layered round plate, a part of the mortar blown by the hot air is prevented from flowing into the inside of the lateral electric slide rail and accumulating to affect the use of the lateral electric slide rail, the triangular long scraper rod is rotated to scrape and clean the top of the layered round plate, too much mortar is prevented from being attached to the position without the ventilation round hole on the layered round plate and being difficult to handle to affect subsequent use, and the vertical triangular scraper block is rotated to scrape and clean the inside of the arc-shaped protective baffle, too much mortar in the inside of the arc-shaped protective baffle is prevented from being accumulated for a long time and being difficult to clean to block the ventilation round hole and affect the ventilation effect.

[0016] 3. The concrete production electric heating air blowing constant temperature drying box is provided with a storage mechanism, the outer round concave shell is arranged outside the built-in round concave shell, the hot air flows slowly in the area, the concrete samples are uniformly heated, only the top of the concrete sample is contacted with the hot air during drying of the concrete sample, the concrete sample is unevenly heated, and the drying effect is affected; a plurality of mortar round holes are arranged in the inner wall bottom of the outer round concave shell, the mortar is prevented from being accumulated between the outer round concave shell and the built-in round concave shell and being difficult to handle, the built-in round slide plate is arranged on the inner wall bottom of the built-in round concave shell and moves relative to the built-in round concave shell to quickly demold and unload the concrete sample, and the dried concrete sample is prevented from being adhered to the inner wall of the built-in round concave shell and being easily damaged during demolding and unloading.

[0017] 4. The electric heating blast constant temperature drying box for concrete production is provided with a mortar cleaning device, the fine scraper rod one and the fine scraper rod two clean the inner wall bottom of the square drying box body when they rotate with the arc-shaped toothed scraper, prevent the mortar cleaned from continuously accumulating in the inner wall bottom of the square drying box body and being difficult to handle and affecting use, the mortar cleaned is gradually discharged to the outside direction of the square drying box body through the slope setting of the slope scraper, prevent the mortar cleaned from always accumulating in the bottom area of the square drying box body and being difficult to be secondarily handled, the arc-shaped toothed scraper is blocked by rotating to the position aligned with the arc-shaped toothed hole, prevent the hot gas in the square drying box body from being discharged in large quantities from the arc-shaped toothed hole, cause the internal temperature of the square drying box body to be difficult to reach the constant temperature state and affect the drying effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the electric heating blast constant temperature drying box structure schematic view of the present application;

[0019] Figure 2 It is the electric heating blast constant temperature drying box bottom side section structure schematic view of the present application;

[0020] Figure 3 It is the multi-layer drying rack device bottom structure schematic view of the present application;

[0021] Figure 4 It is the multi-layer drying rack device structure schematic view of the present application;

[0022] Figure 5 It is the material storage mechanism structure schematic view of the present application;

[0023] Figure 6 It is the material storage mechanism bottom side section structure schematic view of the present application;

[0024] Figure 7 It is the mortar cleaning device bottom structure schematic view of the present application;

[0025] Figure 8 It is the mortar cleaning device structure schematic view of the present application.

[0026] In the figure: 1, square drying box body; 2, top dust screen round plate; 3, electric fan; 4, electric heating plate; 5, horizontal electric sliding rail; 6, multi-layer drying rack device; 7, vertical bottom column; 8, arc tooth-shaped hole; 9, mortar cleaning device; 10, side opening long sliding hole; 11, pull type box door; 601, linkage long column; 602, driving motor; 603, sleeve type long sliding plate; 604, side clamping plate; 605, layered round plate; 606, ventilation round hole; 607, material storage mechanism; 608, arc-shaped protective baffle; 609, triangular long scraping rod; 610, vertical triangular scraping block; 6071, outer connecting round rod; 6072, outer round concave shell; 6073, mortar round hole; 6074, upper top spring; 6075, inner round concave shell; 6076, inner round sliding plate; 6077, bottom penetrating rod; 901, annular electric sliding rail; 902, inner long connecting plate; 903, top connecting round block; 904, arc-shaped tooth-shaped scraping plate; 905, fine scraping rod I; 906, fine scraping rod II; 907, bottom connecting round column; 908, inclined scraping plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] Please refer to Figures 1-6 The present application provides a kind of electric heating blast constant temperature drying oven for concrete production, including square drying box body 1, the inner wall of square drying box body 1 is fixedly connected with top dust screen round plate 2, top dust screen round plate 2 is rotatably connected with electric fan 3 at the bottom by rotating bolt, the inner wall of square drying box body 1 is fixedly connected with electric heating plate 4, the inner wall of square drying box body 1 is fixedly connected with horizontal electric sliding rail 5, one side of horizontal electric sliding rail 5 is slidably connected with multi-layer drying rack device 6, the bottom of square drying box body 1 is fixedly connected with vertical bottom column 7, the bottom of square drying box body 1 is provided with arc tooth-shaped hole 8, the bottom of square drying box body 1 is fixedly connected with mortar cleaning device 9, both sides of square drying box body 1 are provided with side opening long sliding hole 10, one side of square drying box body 1 is rotatably connected with pull type box door 11 by rotating bolt;

[0029] Multi-layer drying rack device 6 includes linkage long column 601, the bottom of linkage long column 601 is fixedly connected with driving motor 602, driving motor 602 is sleeved and fixedly connected with sleeve type long sliding plate 603 on the outside, the both sides of sleeve type long sliding plate 603 are fixedly connected with side clamping plate 604, the outside of linkage long column 601 is sleeved and fixedly connected with layered round plate 605, and ventilation round hole 606 is formed in the top of layered round plate 605;

[0030] The electric heating plate 4 is provided with multiple, and multiple electric heating plate 4 is distributed in the square drying box body 1 inner wall below the position of electric fan 3, the outer side of multilayer drying rack device 6 and the inner wall of side open long sliding hole 10 sliding connection, arc toothed hole 8 is provided with two, and two arc toothed hole 8 is distributed in the square drying box body 1 bottom;

[0031] The outer side of the sleeve type long sliding plate 603 is slidingly connected with the inner wall of the side open long sliding hole 10, and the outer side of the layered circular plate 605 is slidingly connected with one side of the transverse electric sliding rail 5;

[0032] The layered circular plate 605 is provided with multiple, and multiple layered circular plate 605 is distributed on the linkage long column 601, and the ventilation round hole 606 is provided with multiple, and multiple ventilation round hole 606 is distributed on the layered circular plate 605;

[0033] The outer side of the linkage long column 601 is fixedly connected with the material storage mechanism 607, the top and bottom of the layered circular plate 605 are fixedly connected with the arc-shaped protective baffle 608, the outer side of the linkage long column 601 is fixedly connected with the triangular long scraping rod 609, and the end of the triangular long scraping rod 609 away from the linkage long column 601 is fixedly connected with the vertical triangular scraping block 610;

[0034] The material storage mechanism 607 is provided with multiple, and multiple material storage mechanisms 607 are distributed on the outer side of the linkage long column 601, the triangular long scraping rod 609 is provided with multiple, and multiple triangular long scraping rods 609 are distributed on the outer side of the linkage long column 601 at the position of the top of the layered circular plate 605;

[0035] The material storage mechanism 607 comprises an outer connecting round rod 6071, one end of the outer connecting round rod 6071 is fixedly connected with an outer circular concave shell 6072, a bottom of the outer circular concave shell 6072 is provided with a plurality of through dust round holes 6073, an inner wall bottom of the outer circular concave shell 6072 is fixedly connected with an upper top spring 6074, a top of the upper top spring 6074 is fixedly connected with an inner circular concave shell 6075, an inner wall of the inner circular concave shell 6075 is slidably connected with an inner circular slide plate 6076, a bottom of the inner circular slide plate 6076 is fixedly connected with a bottom penetrating rod 6077, the plurality of through dust round holes 6073 are distributed on the bottom of the outer circular concave shell 6072, the bottom of the bottom penetrating rod 6077 penetrates through the inner circular concave shell 6075 and is slidably connected with the inner circular concave shell 6075, the bottom of the bottom penetrating rod 6077 is fixedly connected with the inner wall of the outer circular concave shell 6072, in use, the pull-type box door 11 is opened, the outer side of the multi-layer drying rack device 6 is driven to move outside the square drying box body 1 through the transverse electric slide rail 5, the concrete sample is placed in the multi-layer drying rack device 6 when the multi-layer drying rack device 6 moves to the outside, then the multi-layer drying rack device 6 is driven to move back to the inside of the square drying box body 1 through the transverse electric slide rail 5, the pull-type box door 11 is closed, then the electric heating plate 4 is started to heat, at the same time, the hot air is blown to each part inside the multi-layer drying rack device 6 through the electric fan 3 to perform constant temperature drying treatment on the concrete sample, when the inside of the square drying box body 1 is full of gas, the gas is discharged to the outside for pressure relief through the side opening long slide hole 10, after long time drying of the concrete sample in the multi-layer drying rack device 6, the mud ash cleaning device 9 is used to clean the mud ash on the inner wall bottom of the square drying box body 1 and the bottom area of the square drying box body 1;

[0036] When the concrete sample needs to be dried, the concrete sample is placed in the storage mechanism 607, the electric fan 3 blows the hot air around the electric heating plate 4 to flow to the bottom and contact the storage mechanism 607 and the layered circular plate 605, the hot air continues to flow downward through the ventilation round hole 606 and contacts the layered circular plate 605, and the hot air continues to flow downward and dries the concrete sample below, the plurality of ventilation round holes 606 are arranged on the layered circular plate 605, the hot air flows between the plurality of layered circular plates 605, and the concrete sample is fully dried, the arc-shaped protective baffle 608 on the top and the bottom of the layered circular plate 605 covers the lateral electric sliding rail 5 outside the layered circular plate 605, the driving motor 602 is started to drive the top linkage long column 601 to rotate, the linkage long column 601 drives the storage mechanism 607 and the triangular long scraper rod 609 outside to rotate when rotating, the triangular long scraper rod 609 scrapes and cleans the top of the layered circular plate 605 when rotating, the triangular long scraper rod 609 drives the vertical triangular scraper block 610 at one end to rotate when rotating with the linkage long column 601, and the vertical triangular scraper block 610 scrapes and cleans the inside of the arc-shaped protective baffle 608 when rotating with the triangular long scraper rod 609, the layered circular plate 605 is driven by the lateral electric sliding rail 5 to move to the outside of the square drying box body 1 after the concrete sample is dried, the layered circular plate 605 drives the linkage long column 601 to move when moving, the linkage long column 601 drives the driving motor 602 and the sleeve type long sliding plate 603 to move when moving, the sleeve type long sliding plate 603 moves in the side opening long sliding hole 10 when the layered circular plate 605 moves, the concrete sample is placed in the built-in circular sliding plate 6076 when the concrete sample needs to be dried, the outer circular concave shell 6072 is driven to rotate by the outer connecting circular rod 6071 when the linkage long column 601 rotates, the concrete sample in the inner circular concave shell 6075 is driven to rotate with the outer circular concave shell 6072 when the outer circular concave shell 6072 rotates with the linkage long column 601, at this time, the hot air blown to the concrete sample enters the area between the inner circular concave shell 6075 and the outer circular concave shell 6072, the outer circular concave shell 6072 is arranged outside the inner circular concave shell 6075, the hot air flows slowly in the area to uniformly heat each surface of the concrete sample, and the mortar blown into the area between the outer circular concave shell 6072 and the inner circular concave shell 6075 together with the hot air is discharged outward through the mortar round hole 6073, the plurality of mortar round holes 6073 are arranged on the inner wall bottom of the outer circular concave shell 6072, and the mortar is discharged in time, the inner circular concave shell 6075 is pressed downward when the concrete sample needs to be unloaded after being dried, the inner circular concave shell 6075 is compressed when moving downward, the inner wall bottom of the inner circular concave shell 6075 and the built-in circular sliding plate 6076 relatively move, the built-in circular sliding plate 6076 moves upward relative to the inner circular concave shell 6075 when the inner circular concave shell 6075 moves downward, and the concrete sample in the inner circular concave shell 6075 is ejected from the inner circular concave shell 6075 to be unloaded.The concrete sample is quickly demolded and unloaded by setting the relatively movable built-in circular slide plate 6076 on the bottom of the inner wall of the built-in circular concave shell 6075, and the built-in circular concave shell 6075 is loosened after the concrete sample is unloaded, at this time, the upper top spring 6074 pushes the built-in circular concave shell 6075 to move upward by the extension force, and the built-in circular slide plate 6076 in the inner wall of the built-in circular concave shell 6075 moves downward relatively until it stops moving when the built-in circular slide plate 6076 moves downward to the bottom of the inner wall of the built-in circular concave shell 6075.

[0037] Please refer to Figures 1-8 The present application provides a kind of electric heating blast constant temperature drying oven for concrete production: mud ash cleaning device 9 includes annular electric slide rail 901, the inner side of annular electric slide rail 901 is rotatably connected with built-in long connecting plate 902, the top of built-in long connecting plate 902 is fixedly connected with top connecting round block 903, the top of top connecting round block 903 is fixedly connected with arc-shaped toothed scraper 904, the outer side of arc-shaped toothed scraper 904 is fixedly connected with thin scraper bar one 905, the inner side of arc-shaped toothed scraper 904 is fixedly connected with thin scraper bar two 906, the bottom of built-in long connecting plate 902 is fixedly connected with bottom connecting cylinder 907, the outer side of bottom connecting cylinder 907 is fixedly connected with inclined scraper 908, the top of annular electric slide rail 901 is fixedly connected with the bottom of square drying box body 1, top connecting round block 903 is provided with two, and two top connecting round blocks 903 are distributed on built-in long connecting plate 902, inclined scraper 908 is provided with three, and three inclined scrapers 908 are distributed on the outer side of bottom connecting cylinder 907, when using, square drying box body 1 is used for a long time, built-in long connecting plate 902 is driven by annular electric slide rail 901 to drive top connecting round block 903 to rotate in and out of arc-shaped toothed hole 8, top connecting round block 903 rotates with built-in long connecting plate 902 to drive the top arc-shaped toothed scraper 904 to rotate, the arc-shaped toothed scraper 904 rotates to drive the outer side thin scraper bar one 905 and the inner side thin scraper bar two 906 to rotate together, the thin scraper bar one 905 and the thin scraper bar two 906 rotate with the arc-shaped toothed scraper 904 to scrape the inner wall bottom of square drying box body 1 and clean, the scraped mud ash gradually falls out of arc-shaped toothed hole 8, at the same time, bottom connecting cylinder 907 is rotated with built-in long connecting plate 902, bottom connecting cylinder 907 rotates to drive the outer side inclined scraper 908 to rotate together, the inclined scraper 908 rotates with bottom connecting cylinder 907 to scrape the mud ash on the bottom area of square drying box body 1, the inclined scraper 908 pushes the mud ash on the bottom area of square drying box body 1 to gradually move outward along the inclined surface of inclined scraper 908, the inclined surface of inclined scraper 908 is arranged to gradually discharge the scraped mud ash to the outside of square drying box body 1, after cleaning, built-in long connecting plate 902 is driven by annular electric slide rail 901 to drive arc-shaped toothed scraper 904 to rotate to the position of being aligned with arc-shaped toothed hole 8, arc-shaped toothed scraper 904 is rotated to the position of being aligned with arc-shaped toothed hole 8 to block it.

[0038] In use, the pull-type box door 11 is opened to move the multi-layer drying rack device 6 outside the square drying box body 1 through the horizontal electric slide rail 5. When the multi-layer drying rack device 6 is moved to the outside, the concrete sample is placed in it, and then the multi-layer drying rack device 6 is moved back to the inside of the square drying box body 1 through the horizontal electric slide rail 5. The pull-type box door 11 is closed, and then the electric heating plate 4 is started to heat, and at the same time, the hot air is blown to all parts of the multi-layer drying rack device 6 through the electric fan 3 to perform constant temperature drying treatment on the concrete sample. When the inside of the square drying box body 1 is full of gas, it will be vented to the outside through the side opening long sliding hole 10 to release pressure. After a long time of drying the concrete sample in the multi-layer drying rack device 6, the mortar cleaning device 9 can be used to clean the bottom of the inner wall of the square drying box body 1 and the bottom area of the square drying box body 1;

[0039] When the concrete sample needs to be dried, the concrete sample is placed in the storage mechanism 607, the electric fan 3 blows the hot air around the electric heating plate 4 to flow to the bottom and contact the storage mechanism 607 and the layered circular plate 605, the hot air continues to flow downward through the ventilation round hole 606 and contacts the layered circular plate 605, and the hot air continues to flow downward and dries the concrete sample below, the plurality of ventilation round holes 606 are arranged on the layered circular plate 605, the hot air flows between the plurality of layered circular plates 605, and the concrete sample is fully dried, the arc-shaped protective baffle 608 on the top and the bottom of the layered circular plate 605 covers the lateral electric sliding rail 5 outside the layered circular plate 605, the driving motor 602 is started to drive the top linkage long column 601 to rotate, the linkage long column 601 drives the storage mechanism 607 and the triangular long scraper rod 609 outside to rotate when rotating, the triangular long scraper rod 609 scrapes and cleans the top of the layered circular plate 605 when rotating, the triangular long scraper rod 609 drives the vertical triangular scraper block 610 at one end to rotate when rotating with the linkage long column 601, and the vertical triangular scraper block 610 scrapes and cleans the inside of the arc-shaped protective baffle 608 when rotating with the triangular long scraper rod 609, the layered circular plate 605 is driven by the lateral electric sliding rail 5 to move to the outside of the square drying box body 1 after the concrete sample is dried, the layered circular plate 605 drives the linkage long column 601 to move when moving, the linkage long column 601 drives the driving motor 602 and the sleeve type long sliding plate 603 to move when moving, the sleeve type long sliding plate 603 moves in the side opening long sliding hole 10 when the layered circular plate 605 moves, the concrete sample is placed in the built-in circular sliding plate 6076 when the concrete sample needs to be dried, the outer circular concave shell 6072 is driven to rotate by the outer connecting circular rod 6071 when the linkage long column 601 rotates, the concrete sample in the inner circular concave shell 6075 is driven to rotate with the outer circular concave shell 6072 when the outer circular concave shell 6072 rotates with the linkage long column 601, at this time, the hot air blown to the concrete sample enters the area between the inner circular concave shell 6075 and the outer circular concave shell 6072, the outer circular concave shell 6072 is arranged outside the inner circular concave shell 6075, the hot air flows slowly in the area to uniformly heat each surface of the concrete sample, and the mortar blown into the area between the outer circular concave shell 6072 and the inner circular concave shell 6075 together with the hot air is discharged outward through the mortar round hole 6073, the plurality of mortar round holes 6073 are arranged on the inner wall bottom of the outer circular concave shell 6072, and the mortar is discharged in time, the inner circular concave shell 6075 is pressed downward when the concrete sample needs to be unloaded after being dried, the inner circular concave shell 6075 is compressed when moving downward, the inner wall bottom of the inner circular concave shell 6075 and the built-in circular sliding plate 6076 relatively move, the built-in circular sliding plate 6076 moves upward relative to the inner circular concave shell 6075 when the inner circular concave shell 6075 moves downward, and the concrete sample in the inner circular concave shell 6075 is ejected from the inner circular concave shell 6075 to be unloaded.The concrete sample is quickly demolded and unloaded by setting the relatively movable built-in round slide plate 6076 at the bottom of the inner wall of the built-in round concave shell 6075. After the concrete sample is unloaded, the pressing on the built-in round concave shell 6075 is released. At this time, the upper top spring 6074 pushes the built-in round concave shell 6075 to move upward through the extension force, and the built-in round slide plate 6076 in the inner wall of the built-in round concave shell 6075 moves downward relatively until it stops moving when it moves downward to the bottom of the inner wall of the built-in round concave shell 6075. After the square drying box body 1 is used for a long time, the inner long connecting plate 902 drives the top connecting round block 903 to rotate back and forth in the arc-shaped tooth-shaped hole 8 through the annular electric slide rail 901. The arc-shaped tooth-shaped scraper 904 at the top is driven to rotate by the inner long connecting plate 902, and the thin scraper bar one 905 and the thin scraper bar two 906 on the outside are driven to rotate together. The thin scraper bar one 905 and the thin scraper bar two 906 are scraped and cleaned on the inner wall bottom of the square drying box body 1 when they rotate with the arc-shaped tooth-shaped scraper 904. The scraped ash gradually falls out of the arc-shaped tooth-shaped hole 8. At the same time, the bottom connecting cylinder 907 is driven to rotate by the inner long connecting plate 902, and the inclined scraper 908 on the outside is driven to rotate together. The inclined scraper 908 is scraped and cleaned on the bottom area of the square drying box body 1 when it rotates with the bottom connecting cylinder 907. The ash in the bottom area of the square drying box body 1 is gradually moved outward along the inclined surface of the inclined scraper 908 when the inclined scraper 908 pushes it. The scraped ash is gradually discharged to the outside of the square drying box body 1 through the inclined surface of the inclined scraper 908. After cleaning, the arc-shaped tooth-shaped scraper 904 is rotated to the position aligned with the arc-shaped tooth-shaped hole 8 by the inner long connecting plate 902 driven by the annular electric slide rail 901. The arc-shaped tooth-shaped scraper 904 is blocked by rotating to the position aligned with the arc-shaped tooth-shaped hole 8.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. An electric heating forced-air constant temperature drying oven for concrete production, comprising a square drying chamber (1), characterized in that: The inner wall of the square drying box (1) is fixedly connected to a top dust-screening disc (2). The bottom of the top dust-screening disc (2) is rotatably connected to an electric fan (3) via a rotating bolt. The inner wall of the square drying box (1) is fixedly connected to an electric heating plate (4). The inner wall of the square drying box (1) is fixedly connected to a horizontal electric slide rail (5). A multi-layer drying rack device (6) is slidably connected to one side of the horizontal electric slide rail (5). The bottom of the square drying box (1) is fixedly connected to a vertical base column (7). The bottom of the square drying box (1) is provided with an arc-shaped toothed hole (8). The bottom of the square drying box (1) is fixedly connected to a mud and ash cleaning device (9). Both sides of the square drying box (1) are provided with side-opening long sliding holes (10). One side of the square drying box (1) is rotatably connected to a pull-out box door (11) via a rotating bolt. The multi-layer drying rack device (6) includes a linkage column (601), a drive motor (602) is fixedly connected to the bottom of the linkage column (601), a sleeve-type long slide plate (603) is sleeved and fixedly connected to the outside of the drive motor (602), side plates (604) are fixedly connected to both sides of the sleeve-type long slide plate (603), a layered circular plate (605) is sleeved and fixedly connected to the outside of the linkage column (601), and a ventilation hole (606) is opened on the top of the layered circular plate (605). A material storage mechanism (607) is fixedly connected to the outside of the linkage column (601). Arc-shaped protective baffles (608) are fixedly connected to the top and bottom of the layered circular plate (605). A triangular long scraper (609) is fixedly connected to the outside of the linkage column (601). A vertical triangular scraper block (610) is fixedly connected to the end of the triangular long scraper (609) away from the linkage column (601). The material storage mechanism (607) includes an outer connecting rod (6071), one end of which is fixedly connected to an outer circular concave shell (6072). The bottom of the outer circular concave shell (6072) is provided with a ash passage hole (6073). The bottom of the inner wall of the outer circular concave shell (6072) is fixedly connected to an upper spring (6074). The top of the upper spring (6074) is fixedly connected to an inner circular concave shell (6075). The inner wall of the inner circular concave shell (6075) is slidably connected to an inner circular sliding plate (6076). The bottom of the inner circular sliding plate (6076) is fixedly connected to a bottom through rod (6077). The mud and ash cleaning device (9) includes an annular electric slide rail (901), an inner long connecting plate (902) is rotatably connected to the inner side of the annular electric slide rail (901), a top connecting block (903) is fixedly connected to the top of the inner long connecting plate (902), an arc-shaped toothed scraper (904) is fixedly connected to the top of the top connecting block (903), a thin scraper rod (905) is fixedly connected to the outer side of the arc-shaped toothed scraper (904), a thin scraper rod (906) is fixedly connected to the inner side of the arc-shaped toothed scraper (904), a bottom connecting cylinder (907) is fixedly connected to the bottom of the inner long connecting plate (902), and an inclined scraper (908) is fixedly connected to the outer side of the bottom connecting cylinder (907).

2. The electric heating forced-air constant temperature drying oven for concrete production according to claim 1, characterized in that: Multiple heating plates (4) are provided, and multiple heating plates (4) are distributed on the inner wall of the square drying box (1) below the electric fan (3). The outer side of the multi-layer drying rack device (6) is slidably connected to the inner wall of the side-opening long sliding hole (10). Two arc-shaped toothed holes (8) are provided, and the two arc-shaped toothed holes (8) are distributed at the bottom of the square drying box (1).

3. The electric heating forced-air constant temperature drying oven for concrete production according to claim 1, characterized in that: The outer side of the sleeve-type long slide plate (603) is slidably connected to the inner wall of the side-opening long slide hole (10), and the outer side of the layered circular plate (605) is slidably connected to one side of the transverse electric slide rail (5).

4. The electric heating forced-air constant temperature drying oven for concrete production according to claim 1, characterized in that: Multiple layered circular plates (605) are provided, and the multiple layered circular plates (605) are distributed on the linkage column (601). Multiple ventilation holes (606) are provided, and the multiple ventilation holes (606) are distributed on the layered circular plates (605).

5. The electric heating forced-air constant temperature drying oven for concrete production according to claim 1, characterized in that: Multiple material storage mechanisms (607) are provided, and the multiple material storage mechanisms (607) are distributed on the outside of the linkage column (601). Multiple triangular long scrapers (609) are provided, and the multiple triangular long scrapers (609) are distributed on the outside of the linkage column (601) at the top of the layered circular plate (605).

6. The electric heating forced-air constant temperature drying oven for concrete production according to claim 1, characterized in that: Multiple ash-passing circular holes (6073) are provided, and the multiple ash-passing circular holes (6073) are distributed at the bottom of the outer circular concave shell (6072). The bottom of the bottom-mounted through rod (6077) passes through the inner circular concave shell (6075) and is slidably connected to the inner circular concave shell (6075). The bottom of the bottom-mounted through rod (6077) is fixedly connected to the inner wall of the outer circular concave shell (6072).

7. The electric heating forced-air constant temperature drying oven for concrete production according to claim 1, characterized in that: The top of the annular electric slide rail (901) is fixedly connected to the bottom of the square drying box (1). There are two top connecting round blocks (903), and the two top connecting round blocks (903) are distributed on the built-in long connecting plate (902). There are three inclined scrapers (908), and the three inclined scrapers (908) are distributed on the outside of the bottom connecting cylinder (907).

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