CN220550121U

CN220550121U - Stripping device for recycled aggregate surface mortar

Info

Publication number: CN220550121U
Application number: CN202322075056.0U
Authority: CN
Inventors: 王英辉; 肖建庄; 王文欢; 郭靖
Original assignee: Guangxi Institute Of Green And Low Carbon Technology Co ltd; Guangxi University
Current assignee: Guangxi Institute Of Green And Low Carbon Technology Co ltd; Guangxi University
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-03-01
Anticipated expiration: 2033-08-03

Abstract

The utility model discloses a stripping device for surface mortar of recycled aggregate, which comprises an acid leaching tank, a bucket elevator, an autoclave and a leather grinding tank, wherein a steam inlet pipe and a drain pipe are arranged on the tank wall of the autoclave, a feed pipe is arranged at the center of a top cover of the autoclave, a net barrel which is suitable for the bottom end of the feed pipe is rotatably arranged at the center in the autoclave through a bearing, a plurality of charging grid plates which obliquely extend to the inner wall of the autoclave are communicated with the side part of the net barrel, openings are arranged on the side surface of the charging grid plates, annular raised strips for supporting the charging grid plates are arranged on the inner wall of the autoclave, and a discharging vertical groove which is communicated with the inner cavity of the charging grid plates is arranged on the outer wall of the autoclave. The utility model belongs to the technical field of building materials, solves the problem that the recycled aggregate is ground in a physical peeling way in the prior art, so that mortar is not completely removed, and has the advantages of good mortar removal effect, high recycled aggregate strength, meeting the construction requirements of high-strength buildings and the like.

Description

Stripping device for recycled aggregate surface mortar

Technical Field

The utility model relates to the technical field of aggregate mortar removal devices, in particular to a stripping device for recycled aggregate surface mortar.

Background

Aggregates prepared from waste concrete are called recycled concrete aggregates (recycled aggregates for short), wherein the nominal particle size is greater than 5mm and is divided into coarse aggregates. The production and utilization of the construction waste recycled aggregate have important significance for saving resources, protecting the environment and realizing sustainable development of the construction industry. The recycled aggregate prepared only through simple crushing and screening processes has the advantages of more edges and corners, rough surface, hardened cement mortar in components, and a large number of microcracks in the concrete block caused by damage accumulation in the crushing process, so that the recycled aggregate has high porosity, high water absorption, low bulk density, high void ratio and high crushing index.

In the prior art, the surface mortar of the recycled aggregate is usually treated by a physical mode such as grinding, so that the surface mortar of the recycled aggregate is difficult to remove completely, for example, in a recycled concrete aggregate mortar removing device disclosed in patent network patent number CN214917874U, only the structure such as a rotating framework is used for beating and stirring the aggregate, only the cement mortar with fragile surface part of the aggregate can be removed, but the surface component of the aggregate is complex, and if other substances with strong adhesiveness on the surface of the aggregate cannot be removed, the quality of the recycled aggregate is affected.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a stripping device for recycled aggregate surface mortar aiming at the defects of the prior art, and solves the problem that the recycled aggregate surface mortar is not thoroughly removed in the prior art.

The utility model relates to a stripping device for surface mortar of recycled aggregate, which comprises an acid leaching tank, a bucket elevator, an autoclave and a leather grinding tank, wherein the top end of the acid leaching tank is provided with a feeding tank, and a discharging hopper communicated with the acid leaching tank is arranged in the feeding tank;

the bottom end of the acid leaching tank is provided with a water outlet, the top end of the acid leaching tank is provided with a water inlet, a stirring mechanism is arranged in the acid leaching tank, the bottom in the acid leaching tank is provided with a material guiding chute, the bottom end of the material guiding chute is connected with a discharging pipe penetrating through the bottom wall of the acid leaching tank, and the discharging pipe is provided with a first discharger;

the bottom end of the first discharger is connected with a first dragon conveyor, an output port of the first dragon conveyor is connected with an inlet at the bottom end of the bucket elevator, and a second dragon conveyor extending to the upper part of the autoclave is arranged at an output port at the top end of the bucket elevator;

the steam kettle comprises a steam kettle body, and is characterized in that a steam inlet pipe and a drain pipe are arranged on the wall of the steam kettle body, a feeding pipe communicated with the output end of a second dragon conveyor is arranged in the center of a top cover of the steam kettle body, a valve is arranged on the feeding pipe, a net barrel which is matched with the bottom end of the feeding pipe is arranged in the center of the steam kettle body in a rotating mode through a bearing, a plurality of feeding grating trays which extend to the inner wall of the steam kettle body in an inclined mode are communicated with the side portion of the net barrel, an opening is formed in the side face of the feeding grating tray, an annular raised strip supporting the feeding grating tray is arranged on the inner wall of the steam kettle body, a blanking vertical groove communicated with an inner cavity of the steam kettle body is formed in the outer wall of the steam kettle body, the opening of the feeding grating tray body can be communicated with the blanking vertical groove after the steam kettle body rotates by a certain angle, a second discharger is connected to the bottom end of the steam kettle body, and an inlet of the leather grinding box is connected to the bottom end of the second discharger.

Preferably, the bucket elevator includes the lifting box, locates two roller of lifting box upper and lower portion, overlaps at two epaxial lifting belt of roller and locates the hopper on the lifting belt, and the bottom of lifting box one side is equipped with the feed inlet, and the top of opposite side is equipped with the discharge gate, the outer wall top of lifting box is equipped with the drive the promotion motor of roller.

Preferably, the bottom of first flood dragon conveyer is equipped with the collecting vat, the bottom of the box of first flood dragon conveyer be equipped with the drain of collecting vat intercommunication, this drain department is equipped with the filter screen, be equipped with in the first flood dragon conveyer and pass through the pipeline and be connected with water tank, water pump first shower nozzle.

Preferably, the top in the still kettle is provided with a cross beam for supporting the net drum through a bearing, the bottom end of the net drum is rotationally connected with a rotating shaft which penetrates through the still kettle, and the bottom end of the still kettle is provided with a stepping motor for driving the rotating shaft to rotate.

Preferably, the bottom in the net barrel is provided with a small conical boss, the bottom in the autoclave is provided with a large conical boss which is supported by a bearing, and the bottom end of the net barrel is provided with a scraping plate which is attached to the conical surface of the large conical boss.

Preferably, the annular raised strips are provided with annular guide grooves, and rollers matched with the annular guide grooves are arranged at the bottoms of the edges of the charging grid plates.

Preferably, a plurality of openings which are uniformly arranged are formed in the charging grid plate, material guide plates are arranged on two sides of each opening in the charging grid plate, and the material guide plates between two adjacent openings are connected with each other.

Preferably, a filter cylinder is arranged in the leather grinding box, a rolling cage which is rotationally connected with the two ends of the leather grinding box through a bearing is arranged in the filter cylinder, a motor for driving the rolling cage is arranged at one end outside the leather grinding box, a feeding channel which is communicated with an inner cavity of the filter cylinder is arranged at one end of the leather grinding box, a discharging channel which is communicated with the inner cavity of the filter cylinder is arranged at the other end of the leather grinding box, a second spray head which is connected with a water tank and a water pump through a pipeline is arranged in the leather grinding box, and a drain outlet is arranged at the bottom end of the leather grinding box.

Preferably, the rolling cage comprises a rotating rod connected with two ends of the leather grinding box through bearings, and a plurality of radial frameworks and axial frameworks connected with the radial frameworks at the two ends are uniformly arranged at the two ends of the rotating rod in the circumferential direction, and spiral blades are connected between every two adjacent axial frameworks.

Preferably, a plurality of stirring rods which are arranged in a staggered manner are arranged on the rotating rod.

Advantageous effects

The utility model has the advantages that:

1) In the utility model, a solution such as dilute hydrochloric acid is added into an acid leaching tank to soak the recycled aggregate, the dilute hydrochloric acid reacts with mortar on the surface of the recycled aggregate, and the cement old mortar with weaker outer surface part of the recycled aggregate is peeled off from the surface of the aggregate and weakens the bonding strength of the cement old mortar and the whole recycled coarse aggregate;

2) In the utility model, the recycled aggregate is subjected to layered steaming and pressing, and the recycled aggregate in each layer of charging grid tray can fully contact steam, so that the steaming and pressing effect is good;

3) According to the utility model, the acid leaching tank, the autoclave and the leather grinding tank are arranged to treat the recycled aggregate, so that the mortar removal effect is good, the recycled aggregate with high strength is obtained, the quality of the recycled aggregate is good, and the construction requirement of high-strength buildings is met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic view showing the internal structure of a stripping device for recycled aggregate surface mortar according to the utility model.

FIG. 2 is a schematic view of the internal structure of the autoclave according to the present utility model.

Fig. 3 is an enlarged cross-sectional view of the structure of the charging grid tray in the present utility model.

Fig. 4 is a cross-sectional view of the structure in the direction A-A of fig. 3.

Figure 5 is an enlarged cross-sectional view of the structure of the leather trunk of the present utility model.

Fig. 6 is an enlarged front view of the structure of the cage according to the present utility model.

Fig. 7 is an enlarged side view of the structure of the roll cage of the present utility model.

Wherein: 1. acid leaching tank; 2. bucket elevator; 3. an autoclave; 4. a leather grinding box; 5. a feed box; 6. discharging a hopper; 8. a dust collection pipe; 9. a water outlet; 10. a water inlet; 11. a stirring mechanism; 12. a material chute; 13. a discharge pipe; 14. a first discharger; 15. a first dragon conveyor; 16. a second dragon conveyor; 17. a steam inlet pipe; 18. a blow-down pipe; 19. a feed pipe; 20. a net drum; 21. a charging grid tray; 22. an opening; 23. annular raised strips; 24. a blanking vertical groove; 25. a second discharger; 26. a third dragon conveyor; 27. a collection tank; 28. a filter screen; 29. a first spray head; 30. a cross beam; 31. a stepping motor; 32. a small conical boss; 33. a large conical boss; 34. a scraping plate; 35. a material guide plate; 36. a filter cartridge; 37. a rolling cage; 38. a feed channel; 39. a discharge channel; 40. a second spray head; 41. a rotating rod; 42. a radial skeleton; 43. an axial skeleton; 44. a helical blade; 45. stirring rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inside", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The terms "first," "second," "third," and the like, if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

The specific embodiments of the present utility model are as follows:

referring to fig. 1-7, the stripping device for the recycled aggregate surface mortar comprises an acid leaching tank 1, a bucket elevator 2, an autoclave 3 and a leather grinding tank 4, wherein the top end of the acid leaching tank 1 is provided with a feeding tank 5, a discharging hopper 6 communicated with the acid leaching tank 1 is arranged in the feeding tank 5, one side of the top of the feeding tank 5 is provided with a feeding port, and a dust collection pipe 8 connected with a dust collector is arranged in the feeding tank 5;

the bottom end of the acid leaching tank 1 is provided with a water outlet 9, the top end of the acid leaching tank 1 is provided with a water inlet 10, a stirring mechanism 11 is arranged in the acid leaching tank 1, the bottom in the acid leaching tank 1 is provided with a material guiding chute 12, the bottom end of the material guiding chute 12 is connected with a discharging pipe 13 penetrating through the bottom wall of the acid leaching tank 1, and a first discharger 14 is arranged on the discharging pipe 13;

the bottom end of the first discharger 14 is connected with a first dragon conveyor 15, an output port of the first dragon conveyor 15 is connected with an inlet at the bottom end of the bucket elevator 2, and a second dragon conveyor 16 extending to the upper part of the autoclave 3 is arranged at an output port at the top end of the bucket elevator 2;

the steam kettle 3 is provided with a steam inlet pipe 17 and a drain pipe 18 on the wall, the center of the top cover of the steam kettle 3 is provided with a feed pipe 19 communicated with the output end of the second dragon conveyor 16, the feed pipe 19 is provided with a valve, the center in the steam kettle 3 is rotationally provided with a net drum 20 which is matched with the bottom end of the feed pipe 19 through a bearing, the side part of the net drum 20 is communicated with a plurality of charging grid trays 21 which obliquely extend to the inner wall of the steam kettle 3, the middle height and the edge of the charging grid trays 21 are low, the side surface of the charging grid trays 21 is provided with an opening 22, the inner wall of the steam kettle 3 is provided with an annular raised strip 23 which supports the charging grid trays 21, the outer wall of the steam kettle 3 is provided with a blanking vertical groove 24 communicated with the inner cavity of the blanking vertical groove 24, the steam inlet pipe 17 is connected with the groove wall of the blanking vertical groove 24, the opening 22 of the charging grid trays 21 can be communicated with the blanking vertical groove 24 after rotating by a certain angle, the bottom end of the steam kettle 3 is connected with a second discharger 25 through a pipeline, and the bottom end of the second discharger 25 is connected with the inlet of the leather grinding box 4.

In the stripping device for the recycled aggregate surface mortar, recycled aggregate obtained after crushing, deironing and impurity removal of concrete is conveyed to the feeding box 5 through a conveying belt, and a dust suction pipe 8 is arranged in the feeding box 5 to suck dust generated when the recycled aggregate falls in the discharging hopper 6;

then, the acid leaching tank 1 is arranged in the device, the recycled aggregate is soaked by the dilute hydrochloric acid, the dilute hydrochloric acid reacts with mortar on the surface of the recycled aggregate, the old cement mortar with weaker external surface part of the recycled aggregate is peeled off from the surface of the aggregate, and the bonding strength of the old cement mortar with weaker external surface part of the recycled aggregate and the whole recycled coarse aggregate is weakened.

Then, the recycled aggregate is autoclaved by using high-pressure steam through the autoclave 3, and in a high-temperature environment, cracks are generated in an interface transition region of the recycled aggregate due to the fact that the linear expansion coefficients of the recycled aggregate and the cement old mortar attached to the surface of the recycled aggregate are different, so that the bonding strength of the old mortar is further weakened. In a high-pressure environment, the reaction of the residual dilute hydrochloric acid on the surface of the recycled aggregate and the cement old mortar can be accelerated, so that the chemical reaction is more complete and thorough;

and finally, grinding the recycled aggregate through a leather grinding box 4 to grind most of residual mortar, and eliminating the fragile recycled aggregate to obtain the recycled aggregate with high strength.

The stripping device for the recycled aggregate surface mortar of the embodiment is used for treating the recycled aggregate through the acid leaching tank 1, the autoclave 3 and the leather grinding tank 4 to obtain the high-strength recycled aggregate, and the recycled aggregate is good in quality and meets the construction requirements of high-strength buildings.

In this embodiment, the bucket elevator 2 is a conventional elevator, and conveys the recycled aggregate from bottom to top to the bucket elevator 2, and the bucket elevator 2 comprises a lifting box, two roll shafts arranged at the upper part and the lower part of the lifting box, lifting belts sleeved on the two roll shafts and a hopper arranged on the lifting belts, wherein a feeding hole is formed in the bottom of one side of the lifting box, a discharging hole is formed in the top of the other side of the lifting box, and a lifting motor for driving the roll shafts is arranged at the top of the outer wall of the lifting box.

In this embodiment, the dragon conveyor is a conventional conveyor, a collecting tank 27 is arranged at the bottom of the first dragon conveyor 15, a drain opening communicated with the collecting tank 27 is arranged at the bottom of the box body of the first dragon conveyor 15, a filter screen 28 is arranged at the drain opening, a first spray head 29 connected with a water tank and a water pump through a pipeline is arranged in the first dragon conveyor 15, and the first spray head 29 can spray water to wash dirt on the surface of the recycled aggregate.

Further, in this embodiment, the top in the autoclave 3 is provided with a cross beam 30 for supporting the net drum 20 through a bearing, the bottom end of the net drum 20 is closed, the bottom end of the net drum 20 is rotationally connected with a rotating shaft passing through the autoclave 3 through a sealing ring, the rotating shaft is in sealing connection with the autoclave 3, water leakage is prevented, and the bottom end of the autoclave 3 is provided with a stepping motor 31 for driving the rotating shaft to rotate. The cross beam 30 stably supports the net drum 20, and ensures that the net drum 20 can stably rotate. The stepping motor 3 drives the rotating shaft to drive the net drum 20 to rotate, the net drum 20 rotates to drive the charging grid tray 21 to rotate, so that the opening 22 of the charging grid tray 21 is aligned with the notch of the blanking vertical groove 24, the recycled aggregate in the charging grid tray 21 can slide into the blanking vertical groove 24 from the opening 22, then slide to the bottom of the autoclave 3 from the blanking vertical groove 24, and then be discharged to the leather grinding box 4 from the second discharger 25 at the bottom end of the autoclave 3.

Further, in this embodiment, a small conical boss 32 is provided at the bottom of the inside of the net drum 20, and the small conical boss 32 serves to guide the recycled aggregate at the bottom of the net drum 20 into the bottom charging grid tray 21; the bottom in the autoclave 3 is provided with a conical large boss 33 for supporting the net drum 20 through a bearing, the bottom end of the net drum 20 is provided with a scraping plate 34 attached to the conical surface of the conical large boss 33, and the scraping plate 34 stirs the recycled aggregate at the bottom of the autoclave 3 to the feeding pipe orifice of the second discharger 25 to be discharged.

Still further, be equipped with annular guide slot on the annular sand grip 23, the bottom at charging grid dish 21 edge is equipped with the gyro wheel with annular guide slot looks adaptation, through gyro wheel support charging grid dish 21, makes the rotation angle that charging grid dish 21 can be smooth and easy, reduces the friction.

Further, in this embodiment, the charging grid tray 21 is provided with a plurality of uniformly arranged openings 22, the charging grid tray 21 is provided with material guiding plates 35 at two sides of each opening 22, the material guiding plates 35 between two adjacent openings 22 are connected with each other, and the material guiding plates 35 serve to guide the recycled aggregate in the charging grid tray 21 to each opening 22; in addition, when the recycled aggregate is autoclaved, the region of the charging grid tray 21 located outside the guide plate 35 is a cavity, so that steam flow is facilitated.

Still further, in this embodiment, a filter cylinder 36 is disposed in the leather polishing box 4, a rolling cage 37 rotationally connected to two ends of the leather polishing box 4 through bearings is disposed in the filter cylinder 36, a motor for driving the rolling cage 37 is disposed at one end outside the leather polishing box 4, a feeding channel 38 communicated with an inner cavity of the filter cylinder 36 is disposed at one end of the leather polishing box 4, a discharging channel 39 communicated with the inner cavity of the filter cylinder 36 is disposed at the other end of the leather polishing box 4, a second spray head 40 connected with a water tank and a water pump through a pipeline is disposed in the leather polishing box 4, and a drain outlet is disposed at the bottom end of the leather polishing box 4. The leather grinding box 4 is divided into an upper half and a lower half which can be detached, so that the rolling cage 37 and a bearing are conveniently installed, and the rolling cage 37 is driven to rotate through a motor and a belt transmission assembly; the recycled aggregate enters the leather grinding box 4 from the feeding channel 38, is ground through the rolling cage 37 in the leather grinding box 4, further removes mortar on the outer surface of the recycled aggregate, and then flows out from the discharging channel 39.

Further, the rolling cage 37 includes a rotating rod 41 connected with two ends of the leather grinding case 4 through bearings, a plurality of radial frameworks 42 uniformly arranged in circumferential direction at two ends of the rotating rod 41, and an axial framework 43 connecting the radial frameworks 42 at two ends, wherein a helical blade 44 is connected between two adjacent axial frameworks 43, the helical blade 44 is attached to the inner wall of the filter cylinder 36, and the helical blade 44 plays a role in stirring the recycled aggregate toward the direction of the discharge channel 39. Be equipped with a plurality of puddlers 45 of staggered arrangement on the bull stick 41, puddler 45 can pat the going on of regeneration aggregate for get rid of mortar.

When the method is specifically used, the recycled aggregate is conveyed into the acid leaching tank 1 from the feeding tank 5, dilute hydrochloric acid or acetic acid solution is injected into the acid leaching tank 1, and after soaking is carried out for a period of time; the regenerated aggregate is conveyed into the autoclave 3, flows into the net drum 20 from the feed pipe 19, flows into each layer of charging grid plate 21 from the net drum 20, and is subjected to layered steaming by inputting high-pressure steam into the autoclave 3, so that the regenerated aggregate in each layer of charging grid plate 21 can be fully contacted with the steam, and the steaming effect is good; after autoclaved for a period of time, the mixture is downwards input into a leather grinding box 4 for leather grinding, and finally the regenerated aggregate with high strength, less impurities and good quality is obtained.

The foregoing description of specific exemplary embodiments of the utility model has been presented for the purpose of illustration and description, but it is not intended to limit the utility model to the precise form disclosed, and it is apparent that many changes and modifications may be made in accordance with the above teachings, and while embodiments of the utility model have been shown and described, this specific embodiment is merely illustrative of the utility model and not restrictive, the particular features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner, the exemplary embodiments being selected and described for the purpose of explaining the specific principles of the utility model and its practical application, so that modifications, substitutions, variations, and various other changes may be made to the embodiments without creatively departing from the principles and spirit of the utility model as desired by those skilled in the art without departing from the scope of the patent claims.

Claims

1. The stripping device for the surface mortar of the recycled aggregate comprises an acid leaching tank (1), a bucket elevator (2), an autoclave (3) and a leather grinding tank (4), and is characterized in that,

the top end of the acid leaching tank (1) is provided with a feeding tank (5), and a discharging hopper (6) communicated with the acid leaching tank (1) is arranged in the feeding tank (5);

the bottom end of the acid leaching tank (1) is provided with a water outlet (9), the top end of the acid leaching tank (1) is provided with a water inlet (10), a stirring mechanism (11) is arranged in the acid leaching tank (1), the bottom in the acid leaching tank (1) is provided with a material guiding chute (12), the bottom end of the material guiding chute (12) is connected with a discharging pipe (13) penetrating through the bottom wall of the acid leaching tank (1), and the discharging pipe (13) is provided with a first discharger (14);

the bottom end of the first discharger (14) is connected with a first dragon conveyor (15), an output port of the first dragon conveyor (15) is connected with an inlet at the bottom end of the bucket elevator (2), and a second dragon conveyor (16) extending to the upper part of the autoclave (3) is arranged at an output port at the top end of the bucket elevator (2);

be equipped with on the case wall of still kettle (3) admission pipe (17) and blow off pipe (18), the center of still kettle (3) top cap is equipped with inlet pipe (19), be equipped with the valve on inlet pipe (19), the center in still kettle (3) through the bearing rotate be equipped with the net section of thick bamboo (20) that the bottom of inlet pipe (19) suited, the lateral part intercommunication of net section of thick bamboo (20) has a plurality of slopes to extend to loading grid dish (21) of still kettle (3) inner wall, be equipped with opening (22) on the side of loading grid dish (21), be equipped with on the inner wall of still kettle (3) and support annular sand grip (23) of loading grid dish (21), be equipped with on the outer wall of still kettle (3) rather than unloading vertical groove (24) of inner chamber intercommunication, its opening (22) can be with unloading vertical groove (24) intercommunication after the rotation of certain angle, the bottom of still kettle (3) is connected with second tripper (25), the bottom of second tripper (25) is connected with the entry of leather mill case (4).

2. The stripping device for the recycled aggregate surface mortar according to claim 1, wherein the bucket elevator (2) comprises a lifting box, two roll shafts arranged at the upper part and the lower part of the lifting box, lifting belts sleeved on the two roll shafts and a hopper arranged on the lifting belts, wherein a feeding hole is formed in the bottom of one side of the lifting box, a discharging hole is formed in the top of the other side of the lifting box, and a lifting motor for driving the roll shafts is arranged at the top of the outer wall of the lifting box.

3. The stripping device for the recycled aggregate surface mortar according to claim 1, wherein a collecting tank (27) is arranged at the bottom of the first dragon conveyor (15), a drain outlet communicated with the collecting tank (27) is arranged at the bottom of the box of the first dragon conveyor (15), a filter screen (28) is arranged at the drain outlet, and a first spray head (29) connected with a water tank and a water pump through a pipeline is arranged in the first dragon conveyor (15).

4. The stripping device for the recycled aggregate surface mortar according to claim 1, 2 or 3, wherein a cross beam (30) for supporting the net drum (20) through a bearing is arranged at the top in the autoclave (3), a rotating shaft arranged through the autoclave (3) is rotatably connected to the bottom end of the net drum (20) through a sealing ring, and a stepping motor (31) for driving the rotating shaft to rotate is arranged at the bottom end of the autoclave (3).

5. The stripping device for the recycled aggregate surface mortar according to claim 4, wherein a small conical boss (32) is arranged at the bottom in the net drum (20), a large conical boss (33) for supporting the net drum (20) through a bearing is arranged at the bottom in the autoclave (3), and a scraping plate (34) attached to the conical surface of the large conical boss (33) is arranged at the bottom end of the net drum (20).

6. The stripping device for recycled aggregate surface mortar according to claim 5, wherein the annular raised strips (23) are provided with annular guide grooves, and the bottoms of the edges of the charging grid tray (21) are provided with rollers matched with the annular guide grooves.

7. The stripping device for the recycled aggregate surface mortar according to claim 6, wherein a plurality of uniformly arranged openings (22) are formed in the charging grid tray (21), material guide plates (35) are arranged on two sides of each opening (22) in the charging grid tray (21), and the material guide plates (35) between two adjacent openings (22) are connected with each other.

8. The stripping device for the recycled aggregate surface mortar according to claim 6, wherein a filter cartridge (36) is arranged in the leather grinding box (4), a rolling cage (37) rotationally connected with two ends of the leather grinding box (4) through a bearing is arranged in the filter cartridge (36), a motor for driving the rolling cage (37) is arranged at one end outside the leather grinding box (4), a feeding channel (38) communicated with an inner cavity of the filter cartridge (36) is arranged at one end of the leather grinding box (4), a discharging channel (39) communicated with the inner cavity of the filter cartridge (36) is arranged at the other end of the leather grinding box (4), a second spray head (40) connected with a water tank and a water pump through a pipeline is arranged in the leather grinding box (4), and a drain outlet is arranged at the bottom end of the leather grinding box (4).

9. The stripping device for recycled aggregate surface mortar according to claim 8, wherein the rolling cage (37) comprises a rotating rod (41) connected with two ends of a leather grinding box (4) through bearings, a plurality of radial frameworks (42) and axial frameworks (43) connecting the radial frameworks (42) at two ends are uniformly arranged at two ends of the rotating rod (41) in the circumferential direction, and spiral blades (44) are connected between two adjacent axial frameworks (43).

10. The stripping device for recycled aggregate surface mortar as recited in claim 9, wherein the rotating rod (41) is provided with a plurality of stirring rods (45) which are arranged in a staggered manner.