CN114474368A

CN114474368A - Concrete processing equipment and production process thereof

Info

Publication number: CN114474368A
Application number: CN202210174418.9A
Authority: CN
Inventors: 陆斌斌; 龚珏霄; 陆颖; 张运红; 吴莉欢
Original assignee: Anji Longang Concrete Products Co ltd
Current assignee: Anji Longang Concrete Products Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-05-13
Anticipated expiration: 2042-02-25
Also published as: CN114474368B

Abstract

The invention provides concrete processing equipment, which comprises a machine body and is characterized by also comprising: a first mixing unit; the gravel feeding unit is arranged on the side part of the first mixing unit; the transmission unit is arranged on the side part of the gravel feeding unit; the first mixing unit comprises: the overturning crushing assembly and the first stirring assembly are arranged; the turnover crushing assembly is arranged in the middle of the bottom of the first stirring assembly. To the big gravel that does not accord with the size requirement, can slide down along the part of gathering that the slope set up to gather in screening groove department, set the groove width through the groove width with screening groove into being less than the groove width of second screening groove, thereby reached effectually prevent to be not according to the gravel of size and mix with cement and sand, further promote the quality grade of concrete.

Description

Concrete processing equipment and production process thereof

Technical Field

The invention relates to the technical field of concrete preparation, in particular to concrete processing equipment and a production process thereof.

Background

Concrete is one of the most important civil engineering materials in the present generation, and is mainly prepared by mixing cement, sand and gravel, and the size of the gravel in the preparation process is usually limited within a certain range in order to overcome the defects of poor concrete homogeneity, inconsistent shrinkage of each part of the concrete and the like caused by segregation phenomenon in the preparation process.

Chinese patent CN 109366742B discloses a concrete production system and a production method thereof, which includes a sand feeding device, a cement feeding device, a gravel feeding device, a sand-mud mixing device, a gravel screening spiral guide chute, a sand-mud-gravel mixing device and a concrete mixer, wherein the sand feeding device can supply raw material sand required by concrete to the sand-mud mixing device, the cement feeding device can supply raw material cement required by concrete to the sand-mud mixing device, the sand-mud mixing device can mix the supplied sand with the supplied cement, the gravel feeding device can supply raw material gravel required by concrete to the sand-mud-gravel mixing device after being screened by the gravel screening spiral guide chute, the sand-mud-gravel mixing device can mix the mixed sand and cement with gravel again, and then the mixture is stirred by the concrete mixer to form concrete. The invention ensures the mixing uniformity of all raw materials required by the concrete and improves the quality grade of the concrete.

However, the following problems exist in the technical scheme:

1. the scheme is directly used after the gravels are primarily screened, and the gravels with irregular shapes and not meeting the size requirement still pass through a screening mechanism and are stirred and mixed with sand and cement, so that the prepared concrete is easy to separate;

2. gravel which does not meet the size requirement and enters the stirring area cannot be crushed in time and subjected to secondary screening, so that the quality grade of prepared cement is low.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides concrete processing equipment which can ensure that the size of gravel can be strictly controlled in the optimal range for preparing concrete by screening the gravel layer by layer before stirring, prevent the prepared concrete from segregation caused by overlarge size of the gravel, automatically crush the gravel with larger particles before stirring and mixing and has high automation degree.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a concrete processing equipment, includes the organism, its characterized in that still includes:

a first mixing unit;

the gravel feeding unit is arranged on the side part of the first mixing unit;

the transmission unit is arranged on the side part of the gravel feeding unit;

the first mixing unit comprises: the overturning crushing assembly and the first stirring assembly are arranged;

the turnover crushing assembly is arranged in the middle of the bottom of the first stirring assembly;

gravel after the preliminary screening of gravel feeding unit mixes the stirring with the cement sand in getting into first stirring subassembly to when stirring, first stirring subassembly synchronous drive transmission unit reciprocates from top to bottom, impels upset broken subassembly will get into and is not conform to the gravel of size in the first compounding unit and snatch, carries out secondary screening and synchronous broken work.

As an improvement, the tumble crushing assembly comprises:

a swing frame mechanism;

the rotating shaft is rotatably inserted into the swing frame mechanism;

the first screening plate is fixedly sleeved outside the rotating shaft;

the first screening plate is arc-shaped, and a plurality of groups of first screening grooves are uniformly distributed in the upper part of the first screening plate.

As an improvement, the swing frame mechanism comprises:

the driving mechanism is arranged in the swing frame mechanism;

a first gear and a second gear are sequentially arranged on the outer side of the shaft of the driving mechanism;

the second gear is meshed with a lifting piece;

the bottom of the lifting piece is connected with a stone containing piece.

As an improvement, the rotating shafts are provided with two groups, and the outer sides of the rotating shafts are provided with teeth meshed with the first gear;

the bottom of the swing frame mechanism is connected with a crushing piece above the stone containing piece.

As a refinement, the first stirring assembly includes:

the lower part of the mixing barrel is in a conical shape, and the upper part of the mixing barrel is in a cylindrical shape;

the material collecting part is arranged in the mixing barrel and is positioned below the material turning and crushing component;

the thickness of the collecting part is gradually reduced from the inner wall of the mixing barrel to the middle;

and a screening groove for screening gravel is arranged in the middle of the material collecting piece.

As an improvement, the gravel feed unit comprises:

a screening mechanism;

the discharging mechanism is arranged below the screening mechanism;

the screening mechanism and the discharging mechanism are obliquely arranged.

As an improvement, the screening mechanism comprises:

a second screening plate;

the guide-out groove is formed in the bottom of the second screening plate;

a plurality of groups of second screening grooves for primarily screening gravel are uniformly distributed at the upper end of the second screening plate;

the width of the second screening groove is larger than that of the first screening groove.

As an improvement, the transmission unit comprises:

a base plate;

the first driving wheel is rotatably connected to the upper part of the bottom plate;

the second transmission wheel is meshed with the side part of the first transmission wheel;

the jacking mechanism is connected to the upper end of the second driving wheel;

the lifting mechanism is connected to the upper part of the jacking mechanism in a sliding manner;

and the cantilever beam is connected to the upper part of the lifting mechanism.

As an improvement, a second mixing unit is arranged at the upper end of the first mixing unit;

the second mixing unit comprises a cement sand storage tank;

a stirring barrel is arranged on the side part of the cement sand storage box;

and a second stirring mechanism for stirring cement and sand is arranged at the upper end of the stirring barrel.

The invention also provides a concrete production process, which is characterized by comprising the following steps:

s1, weighing: weighing cement, sand and gravel in sequence according to the proportion, putting the cement and the sand into different placement areas corresponding to the cement sand storage box, and putting the gravel into the gravel storage box;

s2, preliminary mixing: placing the weighed cement and sand in a cement sand storage box into a stirring barrel for preliminary stirring and mixing, and then placing the mixture into a first mixing unit;

s3, adding gravel: introducing the gravel screened by the gravel feeding unit into a first mixing unit and mixing the gravel with the cement and sand after the preliminary mixing is finished;

s4, secondary screening of gravel: secondary screening and crushing the unqualified gravels which are primarily screened and enter the first mixing unit;

s5, discharging: and adding water into the first mixing unit, and fully mixing and stirring the cement, the sand and the gravel to form the concrete.

The invention has the beneficial effects that:

1. according to the invention, the material turning and crushing assembly is arranged in the first material mixing unit, small gravel entering the first material mixing unit enters the first stirring mechanism along the screening groove to be stirred and mixed with cement and sand, large gravel which does not meet the size requirement can slide down along the obliquely arranged material collecting part and is collected at the screening groove, and the groove width of the screening groove is set to be smaller than that of the second screening groove, so that mixing of gravel which does not meet the size requirement with cement and sand is effectively prevented, and the quality grade of concrete is further improved.

2. The rotary shaft is driven to rotate by the first gear, the rotary shaft drives the first screening plates on two sides to scoop up the large gravel to the arc-shaped concave part, and cement and sand mixed on the surface of the large gravel are leaked out of the first screening grooves, so that interference caused by cement and sand stuck on the surface of the gravel in the next gravel crushing process is prevented.

3. According to the invention, the lifting piece drives the stone containing piece to move upwards, so that the large gravels on the stone containing piece and the crushing piece are crushed in an extrusion manner, and meanwhile, the first gear drives the first sieve plate to reset through the rotating shaft, so that the effect of automatically crushing the large gravels after secondary screening is achieved.

4. According to the invention, the stirring and crushing assembly is driven by the cantilever beam to reciprocate up and down, wherein the stirring and crushing assembly grabs the large gravel on the large screening groove to the suspended part of the mixing barrel for crushing in the upward moving process, so that the situation that the first screening plate cannot perform grabbing work due to direct crushing at the bottom of the direct screening groove is prevented.

5. According to the invention, cement and sand are firstly poured into the cement sand storage box, then sequentially poured into the stirring barrel through the cement transfer pipe and the sand transfer pipe for primary stirring, and then the mixture after primary stirring is poured into the mixing barrel for secondary stirring, so that the influence of gravels on stirring when the mixture is directly poured into the mixing barrel is avoided, and the mixture is more uniform.

In conclusion, the invention has the advantages that the quality grade of the prepared concrete is high, the size of the gravel can be strictly controlled in an optimal range, the possibility of concrete segregation is effectively reduced, and the like.

Drawings

FIG. 1 is a schematic view of the overall front structure of the present invention;

FIG. 2 is a schematic view of the overall rear structure of the present invention;

FIG. 3 is a diagram of the motion of the gravel feed unit of the present invention;

FIG. 4 is an enlarged view of the invention at A in FIG. 3;

FIG. 5 is a schematic view of the movement of the upender and breaker assembly of the present invention;

FIG. 6 is a side cross-sectional view of the upender crushing assembly of the present invention;

FIG. 7 is a top cross-sectional view of the upender crushing assembly of the present invention;

FIG. 8 is a bottom view of the swing frame mechanism of the present invention;

fig. 9 is a view showing the connection relationship between the stone holder and the second gear;

FIG. 10 is a schematic view of the internal structure of the first stirring assembly of the present invention;

FIG. 11 is a diagram showing a relationship between a second mixing unit and a first mixing unit according to the present invention;

FIG. 12 is a process flow diagram of the present invention.

In the figure, 1, a first mixing unit; 2. a gravel feeding unit; 3. a transmission unit; 4. a second mixing unit; 5. a body; 11. a material turning and crushing component; 12. a first stirring assembly; 110. a swing frame mechanism; 1101. a drive mechanism; 1102. a first gear; 1103. a second gear; 1104. a lifting member; 11041. a rack bar; 11042. pre-tightening the spring; 1105. a stone receptacle; 1106. a crushing member; 111. a rotating shaft; 112. a first screening plate; 1121. a first screening tank; 113. a material guiding frame; 121. a mixing barrel; 122. a collecting member; 123. a screening tank; 124. a discharging mechanism; 125. a slide rail; 1251. positioning a groove; 21. a screening mechanism; 210. a second screening plate; 2101. a second screening tank; 211. a lead-out slot; 22. a discharge mechanism; 23. a gravel transport mechanism; 24. gravel storage; 301. a base plate; 302. a first drive pulley; 3021. a first stirring mechanism; 303. a second transmission wheel; 304. a jack-up mechanism; 305. a lifting mechanism; 306. a cantilever beam; 307. a guide block; 401. a cement sand storage box; 4011. a cement transfer pipe; 4012. a sand transfer pipe; 402. a stirring barrel; 4021. a second stirring mechanism; 501. a support frame; 502. a gravel receiving barrel; 503. a finished product receiving barrel; 504. a support portion; 505. and (4) gravel transferring the barrel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example one

As shown in fig. 1-2, a concrete processing apparatus includes a machine body 5, and further includes:

a first mixing unit 1;

the gravel feeding unit 2 is arranged on the side part of the first mixing unit 1, and the gravel feeding unit 2 is arranged on the side part of the first mixing unit 1;

the transmission unit 3 is arranged on the side part of the gravel feeding unit 2, and the transmission unit 3 is arranged on the side part of the gravel feeding unit 2;

the first mixing unit 1 includes: the overturning crushing assembly 11 and the first stirring assembly 12;

the overturning crushing assembly 11 is arranged in the middle of the bottom of the first stirring assembly 12;

gravel after the preliminary screening of gravel feeding unit 2 mixes the stirring with cement sand in getting into first stirring subassembly 12 to when stirring, first stirring subassembly 12 drives the reciprocating motion about 3 in step, impels upset broken subassembly 11 will get into and snatch the gravel that is not conform to the size in first compounding unit 1, carries out secondary screening and synchronous broken work.

It should be added that the body 5 comprises: the gravel mixing device comprises a support frame 501, the upper end of the support frame 501 is provided with a gravel receiving barrel 502 used for containing and receiving unqualified gravel to be screened, the upper end of the support frame 501 is provided with a finished product receiving barrel used for collecting concrete, the lower end of the discharge mechanism 124 is provided with a support part 504, and the upper part of the support part 504 is provided with a gravel transferring barrel 505 at the discharge end of the gravel conveying mechanism 23.

As a refinement, as shown in fig. 5-9, the tumble crushing assembly 11 comprises:

a swing frame mechanism 110;

the rotating shaft 111 is rotatably inserted into the swing frame mechanism 110;

the first screening plate 112 is fixedly sleeved outside the rotating shaft 111, and the first screening plate 112 is fixedly sleeved outside the rotating shaft 111;

the first screening plate 112 is arc-shaped, and a plurality of groups of first screening grooves 1121 are uniformly distributed on the upper portion of the first screening plate.

Further, the swing frame mechanism 110 includes:

a driving mechanism 1101, wherein the driving mechanism 1101 is arranged inside the swing frame mechanism 110;

a first gear 1102 and a second gear 1103 are sequentially arranged on the outer side of the shaft of the driving mechanism 1101;

the second gear 1103 is engaged with a lifting member 1104;

a stone containing piece 1105 is connected to the bottom of the lifting piece 1104;

a toothed bar 11041 is connected to the upper end of the lifting rod 1104 and positioned inside the swing frame mechanism 110, and the toothed bar 11041 is meshed with the second gear 1103;

a pre-tightening spring 11042 for limiting the lifting position of the stone containing piece 1105 is movably sleeved on the outer side of the toothed bar 11041.

Furthermore, two groups of rotating shafts 111 are provided, and teeth meshed with the first gear 1102 are provided on the outer sides of the two groups of rotating shafts;

a crushing piece 1106 is connected to the bottom of the swing frame mechanism 110 and above the stone containing piece 1105;

a material guiding frame 113 is transited between the bottom of the first screening plate 112 and the stone containing member 1105.

As a modification, as shown in fig. 3 and 10, the first stirring assembly 12 includes:

a mixing tub 121, a lower portion of the mixing tub 121 having a tapered shape and an upper portion having a cylindrical shape;

the collecting part 122 is arranged inside the mixing barrel 121 and is positioned below the material turning and crushing assembly 11;

the thickness of the collecting part 122 gradually decreases from the inner wall of the mixing barrel 121 to the middle;

a screening groove 123 for screening gravel is arranged in the middle of the collecting part 122;

the side part of the conical part of the mixing barrel 121 is connected with a discharging mechanism 124;

the connecting part of the lateral part of the mixing barrel 121 and the cantilever beam 306 is provided with a slide rail 125, and a positioning groove 1251 for limiting the cantilever beam 306 is arranged inside the slide rail 125.

As a refinement, as shown in fig. 3-4, the gravel feed unit 2 comprises:

a screening mechanism 21;

the discharging mechanism 22 is arranged below the screening mechanism 21, and the discharging mechanism 22 is arranged below the screening mechanism 21;

the screening mechanism 21 and the discharging mechanism 22 are both obliquely arranged;

the screening mechanism 22 is obliquely provided with a gravel conveying mechanism 23 at the oblique side part, and the lower end of the gravel conveying mechanism 23 is connected with a gravel storage box 24.

Further, the screening mechanism 21 includes:

a second screening plate 210;

the guide groove 211 is formed in the bottom of the second screening plate 210, and the guide groove 211 is formed in the bottom of the second screening plate 210;

a plurality of groups of second screening grooves 2101 for primarily screening gravel are uniformly distributed at the upper end of the second screening plate 210;

the width of the second screening groove 2101 is greater than that of the first screening groove 1121.

It should be noted that, when gravel is mixed with cement and sand, to ensure that the size of gravel is within a certain range, and cannot be too large or too small, in the gravel screening process in the prior art, as shown in fig. 3-4, when a large amount of gravel slides down along the second screening plate 201 and is fed, gravel with qualified size falls into the discharge mechanism 22 along the second screening slot 2101, and can be screened when a long and thin large gravel horizontally passes through the second screening slot 2101, but when long and thin large gravel is jacked up by small gravel b, gravel also enters into the first mixing unit 1 through the second screening slot 2101 to be mixed, so that prepared concrete is easy to segregate;

based on the situation, the material turning and crushing assembly 11 is arranged in the first material mixing unit 1, small gravel entering the first material mixing unit 1 enters the first stirring mechanism 3021 along the screening groove 123 to be stirred and mixed with cement and sand, large gravel which does not meet the size requirement slides downwards along the obliquely arranged material collecting piece 122 and is collected at the screening groove 123, and the groove width of the screening groove 123 is set to be smaller than that of the second screening groove 2101, so that the gravel which does not meet the size requirement is effectively prevented from being mixed with the cement and the sand, and the quality grade of the concrete is further improved;

for the gravels accumulated on the upper part of the screening groove 123, the material stirring and crushing assembly 11 is driven by the transmission unit 3 to move downwards, so that the first screening plate 112 can dig the gravels into the gravel, the driving mechanism 1101 is started, the driving mechanism 1101 drives the rotating shaft 111 to rotate through the first gear 1102, the rotating shaft 111 drives the first screening plates 112 on two sides to scoop the gravels to the arc-shaped concave part, as shown in the state shown in fig. 6, at this time, cement and sand mixed on the surface of the gravels leaks out from the first screening groove 1121, and the next part is prevented from being interfered by the cement and sand stuck on the surface of the gravels in the gravel crushing process;

with the further rotation angle of the first screening plate 112, the large gravels are dumped to the material guiding frame 113 and enter the stone containing member 1105 along the material guiding frame 113 to be gathered, as shown in fig. 7-9, when the large gravels enter the stone containing member 1105, the distance between the stone containing member 1105 and the crushing member 1106 is farthest, when the first screening plate 112 is reset, the driving mechanism 1101 drives the toothed bar 11041 to move upwards through the second gear 1103, the toothed bar 11041 drives the stone containing member 1105 to move upwards through the lifting member 1104, so that the large gravels on the stone containing member 1105 and the crushing member 1106 are crushed by extrusion, and meanwhile, the first gear 1102 drives the first screening plate 112 to reset through the rotating shaft 111, thereby achieving the effect of automatically crushing the large gravels after the secondary screening.

As a modification, as shown in fig. 2 and fig. 10 to 11, the transmission unit 3 includes:

a base plate 301;

a first driving wheel 302, wherein the first driving wheel 302 is rotatably connected to the upper part of the bottom plate 301;

a second transmission wheel 303, wherein the second transmission wheel 303 is meshed with the side part of the first transmission wheel 302;

the jacking mechanism 304, the jacking mechanism 304 is connected to the upper end of the second transmission wheel 303;

the lifting mechanism 305 is connected to the upper part of the jacking mechanism 304 in a sliding way;

a cantilever beam 306, wherein the cantilever beam 306 is connected to the upper part of the lifting mechanism 305;

the upper end of the first driving wheel 302 is connected with a second stirring mechanism 3021;

a driving device is arranged in the bottom plate 301 and below the first stirring mechanism 3021.

It should be noted that, as shown in fig. 10-11, in the process that the driving device drives the first stirring mechanism 3021 to stir the mixture in the mixing tub 121, the first stirring mechanism 3021 drives the second driving wheel 303 to rotate at a reduced speed through the first driving wheel 302, the second driving wheel 303 drives the lifting mechanism 305 to reciprocate up and down along the guide block 307 through the jacking mechanism 304, the lifting mechanism 305 drives the turnover crushing assembly 11 to reciprocate up and down through the cantilever beam 305, wherein the turnover crushing assembly 11 grabs the large gravel on the large screening chute 123 to the suspended portion of the mixing tub 121 to crush the gravel in the upward movement process, so as to prevent the first screening plate 112 from being unable to perform the material grabbing work due to the direct crushing at the bottom of the direct screening chute 123.

As a modification, as shown in fig. 11, a second mixing unit 4 is arranged at the upper end of the first mixing unit 1;

the second mixing unit 4 comprises a cement sand storage tank 401;

a stirring barrel 402 is arranged on the side part of the cement sand storage box 401;

the upper end of the stirring barrel 402 is provided with a second stirring mechanism 4021 for stirring cement and sand;

a cement transfer pipe 4011 and a sand transfer pipe 4012 sequentially penetrate through the side wall of the cement sand storage tank 401.

It should be noted that, as shown in fig. 11, cement and sand are poured into the cement sand storage box 401, and then sequentially through the cement transfer pipe 4011 and the sand transfer pipe 4012, the cement and sand are poured into the stirring barrel 402 for preliminary stirring, and then the mixture after preliminary stirring is poured into the mixing barrel 121 for secondary stirring, so that the influence of gravel on stirring when the mixture is directly poured into the mixing barrel 121 is avoided, and the mixture is more uniform.

Example two

As shown in fig. 12, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that:

the invention also provides a concrete production process, which comprises the following steps:

s1, weighing: weighing the cement, the sand and the gravel in sequence according to the proportion, putting the cement and the sand into different placement areas corresponding to the cement sand storage box 401, and putting the gravel into the gravel storage box 24;

s2, preliminary mixing: placing the weighed cement and sand in the cement sand storage box 401 into a stirring barrel 402 for preliminary stirring and mixing, and then placing the mixture into a first mixing unit 1;

s3, adding gravel: introducing the gravel screened by the gravel feeding unit 2 into the first mixing unit 1 and mixing the gravel with the cement and sand after the preliminary mixing is finished;

s4, secondary screening of gravel: secondarily screening and crushing the gravel with unqualified sizes which is primarily screened and enters the first mixing unit 1;

s5, discharging: and adding water into the first mixing unit 1, and fully mixing the stirred cement, sand and gravel to form concrete.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a concrete processing equipment, includes organism (5), its characterized in that still includes:

a first mixing unit (1);

the gravel feeding unit (2) is arranged on the side part of the first mixing unit (1);

the transmission unit (3) is arranged on the side part of the gravel feeding unit (2);

the first mixing unit (1) comprises: a turnover crushing component (11) and a first stirring component (12);

the overturning crushing assembly (11) is arranged in the middle of the bottom of the first stirring assembly (12);

gravel after gravel feeding unit (2) preliminary screening gets into and mixes the stirring with cement sand in first stirring subassembly (12) to when stirring, first stirring subassembly (12) synchronous drive transmission unit (3) reciprocate from top to bottom, impel upset broken subassembly (11) will get into the gravel that is not conform to the size in first compounding unit (1) and snatch, carry out secondary screening and synchronous broken work.

2. A concrete processing plant according to claim 1, characterized in that said overturning crusher assembly (11) comprises:

a swing frame mechanism (110);

the rotating shaft (111) is rotatably inserted into the swing frame mechanism (110);

the first screening plate (112), the first screening plate (112) is fixedly sleeved outside the rotating shaft (111);

the first screening plate (112) is arc-shaped, and a plurality of groups of first screening grooves (1121) are uniformly distributed at the upper part of the first screening plate.

3. A concrete working plant according to claim 2, wherein said swing frame mechanism (110) comprises:

the driving mechanism (1101) is arranged in the swing frame mechanism (110);

a first gear (1102) and a second gear (1103) are sequentially arranged on the outer side of the shaft of the driving mechanism (1101);

the second gear (1103) is meshed with a lifting piece (1104);

the bottom of the lifting piece (1104) is connected with a stone containing piece (1105).

4. A concrete working apparatus according to claim 3, wherein said rotating shaft (111) is provided with two sets, each of the outer sides thereof being provided with teeth meshing with the first gear (1102);

the bottom of the swing frame mechanism (110) is connected with a crushing piece (1106) above the stone containing piece (1105).

5. A concrete working plant according to claim 1, wherein said first mixing assembly (12) comprises:

a mixing barrel (121), wherein the lower part of the mixing barrel (121) is in a conical shape, and the upper part of the mixing barrel is in a cylindrical shape;

the collecting part (122) is arranged inside the mixing barrel (121) and is positioned below the material turning and crushing assembly (11);

the thickness of the collecting part (122) is gradually reduced from the inner wall of the mixing barrel (121) to the middle;

and a screening groove (123) for screening gravel is arranged in the middle of the collecting piece (122).

6. A concrete processing plant according to claim 2, characterized in that said gravel feeding unit (2) comprises:

a screening mechanism (21);

the discharging mechanism (22), the said discharging mechanism (22) locates under the said screening mechanism (21);

the screening mechanism (21) and the discharging mechanism (22) are both obliquely arranged.

7. A concrete working apparatus according to claim 6, wherein said screening means (21) comprises:

a second screening plate (210);

the guide-out groove (211), the guide-out groove (211) is arranged at the bottom of the second screening plate (210);

a plurality of groups of second screening grooves (2101) for primarily screening gravel are uniformly distributed at the upper end of the second screening plate (210);

the width of the second screening groove (2101) is larger than that of the first screening groove (1121).

8. A concrete working plant according to claim 1, characterised in that said transmission unit (3) comprises:

a base plate (301);

the first driving wheel (302), the first driving wheel (302) is rotatably connected to the upper part of the bottom plate (301);

a second transmission wheel (303), wherein the second transmission wheel (303) is meshed with the side part of the first transmission wheel (302);

the jacking mechanism (304), the jacking mechanism (304) is connected to the upper end of the second transmission wheel (303);

the lifting mechanism (305), the lifting mechanism (305) is connected to the upper part of the jacking mechanism (304) in a sliding way;

a cantilever beam (306), wherein the cantilever beam (306) is connected to the upper part of the lifting mechanism (305).

9. A concrete processing plant according to claim 1, characterized in that said first mixing unit (1) is provided at its upper end with a second mixing unit (4);

the second mixing unit (4) comprises a cement sand storage tank (401);

a stirring barrel (402) is arranged on the side part of the cement sand storage box (401);

and a second stirring mechanism (4021) for stirring cement and sand is arranged at the upper end of the stirring barrel (402).

10. A concrete production process is characterized by comprising the following steps:

s1, weighing: weighing cement, sand and gravel in sequence according to the proportion, putting the cement and the sand into different placement areas corresponding to the cement sand storage box (401), and putting the gravel into the gravel storage box (24);

s2, preliminary mixing: placing the weighed cement and sand in a cement sand storage box (401) into a stirring barrel (402) for preliminary stirring and mixing, and then placing the mixture into a first mixing unit (1);

s3, adding gravel: introducing the gravel screened by the gravel feeding unit (2) into a first mixing unit (1) and mixing the gravel with the cement and sand after the primary mixing is finished;

s4, secondary screening of gravel: secondary screening and crushing the unqualified gravels which are primarily screened and enter the first mixing unit (1);

s5, discharging: and adding water into the first mixing unit (1), and fully mixing the stirred cement, sand and gravel to form concrete.