Low-carbon concrete production equipment based on solid waste materials

Abstract

The invention provides low-carbon concrete production equipment based on solid waste materials, and relates to the technical field of concrete production.The low-carbon concrete production equipment comprises a preparation barrel, a feeding hopper is arranged on the outer side of the preparation barrel, a screening net is arranged in the preparation barrel, the outer wall of the screening net is rotationally connected with the inner wall of the preparation barrel, and the center of the screening net is fixedly connected with a rotating shaft; the upper end of the rotating shaft is connected with the output end of the driving motor, the driving motor is arranged at the upper end of the preparation barrel, a collecting hopper is arranged below the screening net, a mixing cavity is formed between the collecting hopper and the screening net, the lower end of the rotating shaft extends into the mixing cavity and is provided with a plurality of stirring blades, the lower end of the collecting hopper is connected with a discharging pipe, and the lower end of the discharging pipe extends out of the preparation barrel. According to the low-carbon concrete production equipment, solid waste materials and raw materials for preparing concrete can be uniformly put into the preparation barrel through the feeding hopper, then the solid waste materials and other raw materials are uniformly mixed in the preparation barrel, the low-carbon concrete is prepared, the production equipment does not need to add the preparation raw materials in batches, the production efficiency of the low-carbon concrete is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete production, and in particular to low-carbon concrete production equipment based on solid waste materials. Background Art

[0002] Low-carbon concrete based on solid waste materials, referred to as solid waste low-carbon concrete, refers to a building material prepared through a special process in which industrial solid waste or urban garbage and other wastes are processed and added as raw materials or additives to concrete. This type of concrete is not only environmentally friendly, but can also reduce carbon emissions to a certain extent, meeting the requirements of sustainable development.

[0003] For example, a Chinese patent with the authorization announcement number CN117466608B discloses a kind of all-solid waste ultra-high performance concrete and its preparation method, which includes the following steps: firstly, all-solid waste Belite sulphoaluminate cement, fly ash, silica ash and coal gasification slag are placed in a single-fan stirring pot and mixed evenly, and the stirring time is 4 minutes; then, steel slag coarse aggregate and steel slag fine aggregate are poured into the stirring pot and continued to stir, and the stirring time is 3 minutes; after the aggregate and the cementitious material are evenly mixed, the mixed solution of water reducer and reclaimed water is poured into the stirring pot, and the stirring is continued for 2 minutes; finally, the waste tire steel fiber is slowly poured into the stirring pot, and after the steel fiber is added, it is first slowly stirred for 3 minutes and then quickly stirred for 1 minute, and the all-solid waste ultra-high performance concrete is obtained. The cementitious material, aggregate and steel fiber of the present invention are all taken from industrial solid waste, replacing the relatively high-cost silicate cement, quartz sand and commercially available steel fiber, which can not only greatly reduce the manufacturing cost of ultra-high performance concrete, but also promote the resource utilization of industrial solid waste, and achieve the purpose of green and low-carbon production.

[0004] However, in the above concrete preparation process, different materials need to be added in batches and stirred and mixed multiple times, which has low production efficiency and increases the preparation cost of low-carbon concrete. Summary of the invention

[0005] The present invention provides a low-carbon concrete production equipment based on solid waste materials, which is used to solve the technical problem that in the current concrete preparation process, different materials need to be added in batches and stirred and mixed multiple times, resulting in low production efficiency and increased preparation cost of low-carbon concrete.

[0006] In order to solve the above technical problems, the present invention discloses a low-carbon concrete production equipment based on solid waste materials, including: a preparation barrel, a feed hopper is arranged outside the preparation barrel, a screening net is arranged inside the preparation barrel, the outer wall of the screening net is rotatably connected to the inner wall of the preparation barrel, the center of the screening net is fixedly connected to the rotating shaft, the upper end of the rotating shaft is connected to the output end of the driving motor, the driving motor is arranged at the upper end of the preparation barrel, a collecting hopper is arranged below the screening net, a mixing chamber is arranged between the collecting hopper and the screening net, the lower end of the rotating shaft extends into the mixing chamber and is provided with a plurality of stirring blades, the lower end of the collecting hopper is connected to the discharging pipe, and the lower end of the discharging pipe extends to the outside of the preparation barrel.

[0007] Preferably, a discharge valve is provided on the discharge pipe.

[0008] Preferably, a plurality of sliding holes are arranged at the edge of the screen mesh, and the plurality of sliding holes are distributed in a circular array about the center of the screen mesh. A scraper is slidably arranged in the sliding hole, and the scraper is vertically arranged. One side of the scraper is in contact with the inner wall of the preparation barrel, and the lower end of the scraper extends into the mixing chamber. A connecting plate is arranged between two oppositely arranged scrapers, and both ends of the connecting plate are respectively connected to the lower ends of the two scrapers. The center of the connecting plate is slidably connected to the rotating shaft up and down, and a connecting spring is sleeved on the rotating shaft, and the connecting plate is connected to the rotating shaft through the connecting spring.

[0009] Preferably, a stirring plate is arranged on one side of the scraper close to the rotating shaft, the stirring plate is perpendicular to the scraper, and a plurality of stirring plates are distributed in a ring array.

[0010] Preferably, a connecting ring is arranged above the screen mesh, the outer wall of the connecting ring is in contact with the inner wall of the preparation barrel, and the upper end of the scraper is connected to the lower surface of the connecting ring.

[0011] Preferably, a plurality of long through holes are arranged on the sieve net, one end of the long through hole is connected with the sliding hole, the stirring plate is adapted to the long through hole, and the outer wall of the stirring plate is slidably connected with the inner wall of the long through hole up and down.

[0012] Preferably, a crushing barrel is arranged above the screening net, and the center of the crushing barrel is connected to the outer wall of the rotating shaft by sliding up and down, a sliding ring is arranged on the outside of the crushing barrel for sliding movement, and the sliding ring is connected to the crushing barrel through an adaptive adjustment mechanism, a plurality of sliding blocks are arranged on the outer wall of the sliding ring, a sliding groove matched with the sliding block is arranged on the inner wall of the preparation barrel, and the sliding block slides up and down along the inner wall of the sliding groove, a reciprocating screw is arranged on the outer wall of the rotating shaft, a sliding table is arranged outside the reciprocating screw, and the sliding table is connected to the upper surface of the sliding ring through a plurality of connecting rods.

[0013] Preferably, the adaptive adjustment mechanism includes a mounting groove arranged on the outer wall of the crushing barrel, a plurality of mounting grooves are arranged, a guide rod is vertically arranged in the mounting groove, a connecting block is slidably arranged on the guide rod, the connecting block is connected to the inner wall of the sliding ring, a reset spring is sleeved on the guide rod, one end of the reset spring is connected to the upper end of the connecting block, and the other end of the reset spring is connected to the top wall of the mounting groove.

[0014] Preferably, the outer diameter of the crushing barrel is smaller than the inner diameter of the connecting ring.

[0015] Preferably, a plurality of crushing protrusions are provided on the lower surface of the crushing barrel.

[0016] The technical solution of the present invention has the following advantages: The present invention provides a low-carbon concrete production equipment based on solid waste materials, which relates to the technical field of concrete production, including a preparation barrel, a feed hopper is arranged outside the preparation barrel, a screen net is arranged inside the preparation barrel, the outer wall of the screen net is rotatably connected to the inner wall of the preparation barrel, the center of the screen net is fixedly connected to the rotating shaft, the upper end of the rotating shaft is connected to the output end of the driving motor, the driving motor is arranged at the upper end of the preparation barrel, a collecting hopper is arranged below the screen net, a mixing chamber is arranged between the collecting hopper and the screen net, the lower end of the rotating shaft extends into the mixing chamber and is provided with a plurality of stirring blades, the lower end of the collecting hopper is connected to a discharge pipe, and the lower end of the discharge pipe extends to the outside of the preparation barrel. In the present invention, solid waste materials and raw materials for preparing concrete can be uniformly put into the preparation barrel through the feed hopper, and then the solid waste materials and the remaining raw materials are evenly mixed in the preparation barrel to obtain low-carbon concrete. The production equipment does not need to add the preparation raw materials in batches, thereby improving the production efficiency of low-carbon concrete and reducing the production cost.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the devices particularly pointed out in the written description and the drawings of the description.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of a low-carbon concrete production equipment based on solid waste materials according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the barrel prepared in the present invention; Figure 3 A top view of the screen mesh and the connecting ring in the present invention; Figure 4 It is a top view of the sliding ring and the crushing barrel in the present invention; Figure 5 For the present invention Figure 2 A magnified view of the structure at center; Figure 6 For the present invention Figure 2 Enlarged view of the structure at point B in the middle.

[0020] In the figure: 1. preparation barrel; 2. feed hopper; 3. screening net; 4. rotating shaft; 5. driving motor; 6. collecting hopper; 7. mixing chamber; 8. stirring blade; 9. discharge pipe; 10. scraper; 11. connecting plate; 12. connecting spring; 13. stirring plate; 14. connecting ring; 15. crushing barrel; 16. sliding ring; 17. slider; 18. reciprocating screw; 19. slide; 20. connecting rod; 21. mounting groove; 22. guide rod; 23. connecting block; 24. reset spring; 25. crushing spur. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] Example 1 The embodiment of the present invention provides a low-carbon concrete production device based on solid waste materials, such as Figure 1-Figure 6 As shown, it includes: a preparation barrel 1, a feed hopper 2 is arranged outside the preparation barrel 1, a screening net 3 is arranged inside the preparation barrel 1, the outer wall of the screening net 3 is rotatably connected to the inner wall of the preparation barrel 1, the center of the screening net 3 is fixedly connected to the rotating shaft 4, the upper end of the rotating shaft 4 is connected to the output end of the driving motor 5, the driving motor 5 is arranged at the upper end of the preparation barrel 1, a collecting hopper 6 is arranged below the screening net 3, a mixing chamber 7 is arranged between the collecting hopper 6 and the screening net 3, the lower end of the rotating shaft 4 extends into the mixing chamber 7 and is provided with a plurality of stirring blades 8, the lower end of the collecting hopper 6 is connected to the discharge pipe 9, and the lower end of the discharge pipe 9 extends to the outside of the preparation barrel 1; The discharge pipe 9 is provided with a discharge valve.

[0024] The working principle and beneficial effects of the above technical solution are as follows: when producing low-carbon concrete, first prepare solid waste materials and other raw materials for preparing concrete, the other raw materials include cement, and then add the solid waste materials and the other raw materials into the preparation barrel 1 through the feed hopper 2, the solid waste materials are mixed with the other raw materials to form the prepared raw materials, and the prepared raw materials fall on the screening net 3. After being screened by the screening net 3, the prepared raw materials fall into the mixing chamber 7, and the discharge valve is in a closed state. The drive motor 5 is started, and the drive motor 5 rotates to drive the rotating shaft 4 to rotate, and the rotating shaft 4 rotates to drive the stirring blade 8 to rotate, and the stirring blade 8 can stir and mix the prepared raw materials in the mixing chamber 7. After stirring for a preset time, the prepared raw materials are evenly mixed, and the discharge valve is opened. After casting, demolding, and curing, low-carbon concrete is obtained. Solid waste materials are added during the production of the low-carbon concrete, which effectively reduces the emission of industrial solid waste and urban garbage, reduces pollution to the environment, is more environmentally friendly, and has a low cost of solid waste materials, which helps to reduce construction costs during production. In the present invention, solid waste materials and raw materials for preparing concrete can be uniformly put into the preparation barrel 1 through the feed hopper 2, and then the solid waste materials and the remaining raw materials are evenly mixed in the preparation barrel 1 to prepare low-carbon concrete. The production equipment does not need to add the preparation raw materials in batches, thereby improving the production efficiency of low-carbon concrete and reducing the production cost.

[0025] Example 2 On the basis of the above-mentioned embodiment 1, Figure 2 , Figure 3 , Figure 5 As shown, a plurality of sliding holes are arranged at the edge of the screen mesh 3, and the plurality of sliding holes are distributed in a circular array about the center of the screen mesh 3. A scraper 10 is slidably arranged in the sliding hole, and the scraper 10 is vertically arranged. One side of the scraper 10 contacts the inner wall of the preparation barrel 1, and the lower end of the scraper 10 extends into the mixing chamber 7, wherein a connecting plate 11 is arranged between two oppositely arranged scrapers 10, and both ends of the connecting plate 11 are respectively connected to the lower ends of the two scrapers 10, and the center of the connecting plate 11 is slidably connected to the rotating shaft 4 up and down, and a connecting spring 12 is sleeved on the rotating shaft 4, and the connecting plate 11 is connected to the rotating shaft 4 through the connecting spring 12.

[0026] The working principle and beneficial effects of the above technical solution are as follows: since the screening net 3 is fixedly connected to the rotating shaft 4, the rotation of the rotating shaft 4 can drive the screening net 3 to rotate synchronously, thereby accelerating screening and improving production efficiency. At the same time, the screening net 3 drives the scraper 10 to rotate through the sliding hole, and the scraper 10 can drive the prepared raw materials on the screening net 3 to move, so that the prepared raw materials are turned over on the screening net 3, further improving the screening efficiency. Moreover, the scraper 10 can slide along the inner wall of the preparation barrel 1, so as to scrape off the prepared raw materials attached to the inner wall of the preparation barrel 1. After production is completed, there is no need to manually clean the inner wall of the preparation barrel 1, which reduces labor intensity and avoids waste of prepared raw materials. While the screening net 3 rotates, the scraper 10 can also drive the connecting plate 11 to rotate synchronously. The connecting plate 11 rotates in the mixing chamber 7, which can stir the prepared raw materials after screening, accelerates the mixing of the prepared raw materials, and improves the production efficiency of low-carbon concrete.

[0027] Example 3 On the basis of Example 2, Figure 3 As shown, a stirring plate 13 is arranged on one side of the scraper 10 close to the rotating shaft 4. The stirring plate 13 is perpendicular to the scraper 10, and a plurality of stirring plates 13 are distributed in a ring array.

[0028] The working principle and beneficial effects of the above technical solution are as follows: a stirring plate 13 is also slidably arranged in the screening net 3, and the stirring plate 13 can rotate synchronously with the screening net 3. The prepared raw materials on the screening net 3 can be stirred by the stirring plate 13, thereby improving the screening efficiency of the prepared raw materials.

[0029] Example 4 On the basis of Example 2 or 3, Figure 2 , Figure 3 As shown, a connecting ring 14 is arranged above the screening net 3 , the outer wall of the connecting ring 14 is in contact with the inner wall of the preparation barrel 1 , and the upper end of the scraper 10 is connected to the lower surface of the connecting ring 14 .

[0030] The working principle and beneficial effects of the above technical solution are as follows: the upper end of the scraper 10 is connected to the connecting ring 14, which can improve the reliability of the scraper 10, and the lower ends of two scrapers 10 are connected by a connecting plate 11, and the connecting plate 11 is connected to the rotating shaft 4 through a connecting spring 12. The connecting spring 12 can provide support for the connecting plate 11, and the connecting plate 11 provides support for multiple scrapers 10, thereby improving the stability of the scraper 10.

[0031] Example 5 On the basis of Example 4, Figure 2 As shown, a plurality of long through holes are arranged on the screening net 3, one end of the long through hole is connected with the sliding hole, the stirring plate 13 is adapted to the long through hole, and the outer wall of the stirring plate 13 is slidably connected with the inner wall of the long through hole up and down.

[0032] The working principle and beneficial effects of the above technical solution are as follows: when the scraper 10 slides along the sliding hole, the scraper 10 can drive the stirring plate 13 to slide synchronously in the long through hole. When the stirring plate 13 slides downward a preset maximum distance, the upper surface of the stirring plate 13 is not lower than the lower surface of the screen mesh 3 and does not exceed the upper surface of the screen mesh 3.

[0033] Example 6 On the basis of Example 5, Figure 2 , Figure 4 As shown, a crushing barrel 15 is arranged above the screening net 3, and the center of the crushing barrel 15 is connected to the outer wall of the rotating shaft 4 by sliding up and down. A sliding ring 16 is arranged outside the crushing barrel 15 for sliding movement, and the sliding ring 16 is connected to the crushing barrel 15 through an adaptive adjustment mechanism. A plurality of sliding blocks 17 are arranged on the outer wall of the sliding ring 16, and a sliding groove adapted to the sliding block 17 is arranged on the inner wall of the preparation barrel 1. The sliding block 17 slides up and down along the inner wall of the sliding groove. A reciprocating screw 18 is arranged on the outer wall of the rotating shaft 4, and a sliding table 19 is arranged outside the reciprocating screw 18. The sliding table 19 is connected to the upper surface of the sliding ring 16 through a plurality of connecting rods 20. The outer diameter of the crushing barrel 15 is smaller than the inner diameter of the connecting ring 14; A plurality of crushing spikes 25 are provided on the lower surface of the crushing barrel 15 .

[0034] The working principle and beneficial effects of the above technical solution are as follows: when the driving motor 5 drives the rotating shaft 4 to rotate, since the reciprocating screw 18 is fixedly connected to the rotating shaft 4, the rotating shaft 4 drives the reciprocating screw 18 to rotate synchronously, and the slide 19 reciprocates up and down along the reciprocating screw 18. When the slide 19 slides downward, the slide 19 drives the sliding ring 16 to slide downward through the inverted L-shaped connecting rod 20, and the slider 17 on the outer wall of the sliding ring 16 slides downward along the slide groove on the inner wall of the preparation barrel 1, thereby limiting the sliding ring 16. The sliding ring 16 drives the crushing barrel 15 to move downward through the adaptive adjustment mechanism, and the crushing barrel 15 is inserted into the connecting ring 14. As the crushing barrel 15 moves downward, the crushing barrel 15 can squeeze the prepared raw materials on the screening net 3. A plurality of crushing thorns 25 are arranged on the lower surface of the crushing barrel 15. Under the relative rotation of the screening net 3 The crushing protrusions 25 of the crushing barrel 15 can crush larger solid waste materials, reduce the volume of solid waste materials, ensure the uniformity of the particle size of the raw materials for preparing low-carbon concrete, and ensure the production quality of low-carbon concrete. The scraper 10 can also scrape off the prepared raw materials adhered to the outer wall of the crushing barrel 15, avoiding the waste of prepared raw materials and saving costs. When the slide 19 slides upward, the sliding ring 16 drives the crushing barrel 15 to move upward through the adaptive adjustment mechanism, so that the crushing barrel 15 is separated from the connecting ring 14, and the prepared raw materials lose the downward pressure. Under the rotation of the screening net 3, it is easy to drive the prepared raw materials to rotate, so that the prepared raw materials are turned over on the screening net 3, speeding up screening, and at the same time turning the large-particle solid waste materials to the upper position. When the crushing barrel 15 moves downward again, it is convenient for the crushing barrel 15 to crush the large-particle solid waste materials.

[0035] Example 7 On the basis of Example 6, Figure 2 , Figure 6 As shown, the adaptive adjustment mechanism includes a mounting groove 21 arranged on the outer wall of the crushing barrel 15, and a plurality of mounting grooves 21 are arranged. A guide rod 22 is vertically arranged in the mounting groove 21, and a connecting block 23 is slidably arranged on the guide rod 22. The connecting block 23 is connected to the inner wall of the sliding ring 16, and a reset spring 24 is sleeved on the guide rod 22. One end of the reset spring 24 is connected to the upper end of the connecting block 23, and the other end of the reset spring 24 is connected to the top wall of the mounting groove 21.

[0036] The working principle and beneficial effects of the above technical solution are as follows: initially, since there are a lot of prepared raw materials on the screening net 3, when the slide 19 drives the sliding ring 16 to move downward, the crushing barrel 15 first contacts the prepared raw materials, and then the crushing barrel 15 cannot move downward, and at the same time, the sliding ring 16 continues to slide downward, and after the sliding ring 16 contacts the connecting ring 14, it drives the connecting ring 14 to slide downward, so that the connecting spring 12 is compressed, and at the same time, the sliding ring 16 drives the connecting block 23 to slide downward along the guide rod 22, and the return spring 24 is stretched, and the pressure of the crushing barrel 15 on the prepared raw materials gradually increases, thereby improving the initial crushing effect and accelerating the screening of the prepared raw materials. As the slide 19 moves upward, the sliding ring 16 gradually separates from the connecting ring 14, and at the same time, the connecting plate 11 returns to its original position. In this process, the position of the connecting plate 11 in the mixing chamber 7 is The position gradually changes, which makes it easier for the connecting plate 11 to stir at different positions of the mixing chamber 7, expands the stirring range, and improves the mixing efficiency of the prepared raw materials. As the prepared raw materials on the screen mesh 3 decrease, the stretching degree of the return spring 24 gradually decreases, and the pressure of the crushing barrel 15 on the prepared raw materials also gradually decreases, which can reduce the power consumption of the drive motor 5 and achieve energy-saving effects. When the connecting spring 12 is compressed to the maximum extent, the upper surface of the stirring plate 13 is not lower than the lower surface of the screen mesh 3 and does not exceed the upper surface of the screen mesh 3, which can ensure that the crushing thorns 25 will not interfere with the stirring plate 13, and the crushing thorns 25 can be crushed to the maximum extent, so that the solid waste material is crushed more thoroughly and waste of solid waste materials is avoided. After being crushed by the crushing thorns 25, the particle size of the prepared raw materials is more uniform, which greatly improves the production quality of low-carbon concrete.

[0037] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A low-carbon concrete production equipment based on solid waste materials, characterized in that: include: A preparation barrel (1) is provided with a feed hopper (2) outside the preparation barrel (1), a screening net (3) is provided inside the preparation barrel (1), the outer wall of the screening net (3) is rotatably connected to the inner wall of the preparation barrel (1), the center of the screening net (3) is fixedly connected to a rotating shaft (4), the upper end of the rotating shaft (4) is connected to the output end of a driving motor (5), the driving motor (5) is arranged at the upper end of the preparation barrel (1), a collecting hopper (6) is provided below the screening net (3), a mixing chamber (7) is provided between the collecting hopper (6) and the screening net (3), the lower end of the rotating shaft (4) extends into the mixing chamber (7) and is provided with a plurality of stirring blades (8), the lower end of the collecting hopper (6) is connected to a discharge pipe (9), and the lower end of the discharge pipe (9) extends to the outside of the preparation barrel (1).

2. The low-carbon concrete production equipment based on solid waste materials according to claim 1 is characterized in that: A discharge valve is provided on the discharge pipe (9).

3. The low-carbon concrete production equipment based on solid waste materials according to claim 1 is characterized in that: A plurality of sliding holes are arranged at the edge of the screen mesh (3), and the plurality of sliding holes are distributed in a ring array about the center of the screen mesh (3). A scraper (10) is slidably arranged in the sliding hole. The scraper (10) is arranged vertically, and one side of the scraper (10) contacts the inner wall of the preparation barrel (1). The lower end of the scraper (10) extends into the mixing chamber (7). A connecting plate (11) is arranged between two scrapers (10) arranged opposite to each other, and the two ends of the connecting plate (11) are respectively connected to the lower ends of the two scrapers (10). The center of the connecting plate (11) is connected to the rotating shaft (4) in an up-and-down sliding manner. A connecting spring (12) is sleeved on the rotating shaft (4), and the connecting plate (11) is connected to the rotating shaft (4) via the connecting spring (12).

4. The low-carbon concrete production equipment based on solid waste materials according to claim 3 is characterized in that: A stirring plate (13) is arranged on one side of the scraper (10) close to the rotating shaft (4); the stirring plate (13) is perpendicular to the scraper (10); and a plurality of stirring plates (13) are distributed in a ring array.

5. The low-carbon concrete production equipment based on solid waste materials according to claim 3 is characterized in that: A connecting ring (14) is arranged above the screening net (3), the outer wall of the connecting ring (14) is in contact with the inner wall of the preparation barrel (1), and the upper end of the scraper (10) is connected to the lower surface of the connecting ring (14).

6. The low-carbon concrete production equipment based on solid waste materials according to claim 5 is characterized in that: A plurality of long through holes are arranged on the screening net (3), one end of the long through hole is connected to the sliding hole, the stirring plate (13) is matched with the long through hole, and the outer wall of the stirring plate (13) is connected to the inner wall of the long through hole in an up-and-down sliding manner.

7. The low-carbon concrete production equipment based on solid waste materials according to claim 6 is characterized in that: A crushing barrel (15) is arranged above the screening net (3). The center of the crushing barrel (15) is connected to the outer wall of the rotating shaft (4) in an up-and-down sliding manner. A sliding ring (16) is arranged outside the crushing barrel (15) in a sliding manner. The sliding ring (16) is connected to the crushing barrel (15) through an adaptive adjustment mechanism. A plurality of sliding blocks (17) are arranged on the outer wall of the sliding ring (16). A sliding groove matching the sliding block (17) is arranged on the inner wall of the preparation barrel (1). The sliding block (17) slides up and down along the inner wall of the sliding groove. A reciprocating screw (18) is arranged on the outer wall of the rotating shaft (4). A sliding table (19) is arranged outside the reciprocating screw (18). The sliding table (19) is connected to the upper surface of the sliding ring (16) through a plurality of connecting rods (20).

8. The low-carbon concrete production equipment based on solid waste materials according to claim 7 is characterized in that: The adaptive adjustment mechanism comprises a mounting groove (21) arranged on the outer wall of the crushing barrel (15), wherein a plurality of mounting grooves (21) are arranged, wherein a guide rod (22) is vertically arranged in the mounting groove (21), wherein a connecting block (23) is slidably arranged on the guide rod (22), wherein the connecting block (23) is connected to the inner wall of the sliding ring (16), wherein a return spring (24) is sleeved on the guide rod (22), wherein one end of the return spring (24) is connected to the upper end of the connecting block (23), and the other end of the return spring (24) is connected to the top wall of the mounting groove (21).

9. The low-carbon concrete production equipment based on solid waste materials according to claim 7 is characterized in that: The outer diameter of the crushing barrel (15) is smaller than the inner diameter of the connecting ring (14).

10. The low-carbon concrete production equipment based on solid waste materials according to claim 7, characterized in that: A plurality of crushing spikes (25) are provided on the lower surface of the crushing barrel (15).

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