Concrete mixing equipment

Abstract

The invention relates to the technical field of concrete mixers, in particular to concrete mixing equipment which comprises a mixing barrel, and a circulating mixing assembly is mounted in the mixing barrel; the circulating stirring assembly comprises stirring assemblies, stress lifting assemblies, an air injection box and a dust removal assembly, the two stirring assemblies are installed in the center of the stirring barrel and are opposite in stirring direction, a motor for driving the stirring assemblies to rotate is installed on one side of the stirring barrel, and the stress lifting assemblies are installed on the two sides of the inner wall of the stirring barrel; the air injection box is installed over the two stirring assemblies, a hole is formed in the bottom of the air injection box, one side of the air injection box is communicated with an air inlet pipeline, the dust removal assembly is installed at the top of the stirring barrel, the stress lifting assembly comprises a sliding plate, a baffle, an elastic plate, an inclined plate and a transverse plate, the sliding plate slides along the inner wall of the stirring barrel, and the baffle is installed at the top of the sliding plate. The technical problem that existing concrete stirring equipment is difficult to achieve the purpose of cyclic stirring of foam concrete by using an original structure in a stirring barrel is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete mixers, and specifically to concrete mixing equipment. Background Art

[0002] Foamed concrete refers to lightweight porous concrete prepared by physically preparing an aqueous solution of a foaming agent into foam and then adding the foam to a slurry made of cement, aggregates, admixtures, additives, water, etc. During the mixing process, the foam is more likely to float on the surface than ordinary concrete auxiliary materials and is difficult to mix. After retrieval, a Chinese invention patent with the application number CN202410516832.2 discloses a foamed concrete mixer. The batching enters the top of the mixing barrel from the bottom of the mixing barrel through a circulation shell, achieving the effect of circulating mixing. This circulation method enables the foam and fiber filaments and other batching floating on the surface of the concrete to enter the bottom of the mixing barrel and be fully mixed with the concrete.

[0003] The above device relies on the circulation shells on both sides of the mixing barrel to transport the materials at the bottom of the barrel to the top of the barrel, which requires a large amount of power to overcome the gravity of the transported materials. Therefore, not only does the mixing blade require a large amount of power consumption, but the supporting circulation shell part also requires a large amount of power consumption, and the installation of the circulation shell also increases costs, making it difficult to achieve the purpose of circulating mixing of foamed concrete using the original structure inside the mixing barrel. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides concrete mixing equipment, which solves the technical problem that the existing concrete mixing equipment is difficult to achieve the purpose of circulating mixing of foamed concrete using the original structure inside the mixing barrel.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: Concrete mixing equipment, including a mixing barrel, and a circulation mixing assembly is installed inside the mixing barrel; The circulation mixing assembly includes a mixing assembly, a force-bearing lifting assembly, a jet box, and a dust removal assembly. Two mixing assemblies are installed at the center of the mixing barrel and rotate in opposite directions. A motor for driving the mixing assembly to rotate is installed on one side of the mixing barrel. The force-bearing lifting assembly is installed on both sides of the inner wall of the mixing barrel. The jet box is installed directly above the two mixing assemblies. The bottom of the jet box is perforated. One side of the jet box is connected to an intake pipe. The dust removal assembly is installed on the top of the mixing barrel.

[0006] Further, the force-bearing lifting assembly includes a slide plate, a baffle plate, an elastic plate, an inclined plate, and a cross plate. The slide plate slides along the inner wall of the mixing barrel. The baffle plate is installed on the top of the slide plate. The elastic plate is installed between the baffle plate and the mixing barrel. The width of the cross plate is smaller than the width of the inclined plate. The cross plate is provided with ventilation holes.

[0007] Further, the extending direction of the baffle plate faces the axis of the stirring assembly, and a material leakage opening is formed at the bottom of the elastic plate.

[0008] Further, the stirring assembly includes a rotating rod, a cross bar and stirring blades. The rotating rod is rotatably connected to the stirring barrel, and the motor is drivingly connected to the rotating rod. The cross bar is installed on the outside of the rotating rod, and the stirring blades are installed on the cross bar.

[0009] Further, the stirring blades include a horizontal section, an inclined section and a longitudinal section. The horizontal section is installed on the cross bar, the inclined sections are installed on both sides of the horizontal section, and the longitudinal sections are installed on the side of the inclined sections away from the horizontal section.

[0010] Further, a limiting plate is fixedly connected to one side of the stirring blade close to the rotating rod, and a metal hemisphere is fixedly connected to the side of the stirring blade away from the limiting plate.

[0011] Further, the dust removal assembly includes a U-shaped pipe installed on the top of the stirring barrel. Both ends of the U-shaped pipe are communicated with air extraction pipes. An air extraction hole is formed on the side of the U-shaped pipe away from the air extraction pipes. Dust accumulation treatment components are installed at both ends of the U-shaped pipe.

[0012] Further, the dust accumulation treatment component includes partition plates installed at both ends of the U-shaped pipe. A dust accumulation chamber is formed between two adjacent partition plates. A recovery port communicated with the stirring barrel is formed in the dust accumulation chamber. A light plate for covering the recovery port is installed inside the stirring barrel. A limiting rod whose one side extends into the U-shaped pipe movably is arranged on one side of the light plate, and a limiting block is installed on the limiting rod.

[0013] Further, a side plate is fixedly connected to the bottom of the dust removal assembly. Bolts are installed between the side plate and the stirring barrel. A feed hopper is communicated with the top of the stirring barrel.

[0014] By means of the above technical solution, the present invention provides a concrete mixing device, which has at least the following beneficial effects: 1. By arranging the stirring assembly and the force-bearing lifting assembly in the present invention, only the stirring structure needs to perform the stirring action on the concrete, and the circulating stirring process of the concrete from the bottom through the highest point, then being pushed to the edge and then descending to the bottom again can be completed. The purpose of circulating stirring of foamed concrete is realized by using the original structure in the stirring barrel, thereby reducing the equipment cost and use cost required for longitudinal stirring of concrete ingredients. At the same time, foam enters the concrete from multiple positions in the middle and edge of the concrete, accelerating the speed of mixing the foam into the concrete.

[0015] 2. By arranging the force-bearing lifting assembly in the present invention, the concrete and foam can be better pushed down during the descending process, while the foam can be blocked from rising during the ascending process, thereby realizing the purpose of continuous descending of the foam at the edge of the stirring barrel and mixing with the concrete.

[0016] 3. The stirring assembly provided by the present invention can limit the concrete being moved, enabling more concrete at the bottom of the mixing barrel to move to a higher position, improving the effect of cyclic stirring of the concrete. At the same time, the concrete is guided to move in a wider range, and after the concrete moves in more directions, the stirring effect is improved.

[0017] 4. The dust removal assembly provided by the present invention can continuously extract the dust inside the mixing barrel and make the dust settle in the U-shaped pipe, reducing the possibility of dust emission around during concrete mixing.

[0018] 5. The dust accumulation treatment assembly provided by the present invention can close the recovery port when removing dust from the stirring concrete, enabling the dust to settle in the dust accumulation chamber, and automatically open the recovery port when dust removal stops, allowing the recovered dust to re-enter the mixing barrel and mix with the concrete, reducing the waste caused by the blowing away of concrete ingredients with the dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings: Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a partial sectional view of the mixing barrel of the present invention; Figure 3 is a sectional view of the stirring assembly and the force-bearing lifting assembly of the present invention; Figure 4 is a schematic structural diagram of the force-bearing lifting assembly of the present invention; Figure 5 is a schematic structural diagram of the stirring assembly of the present invention; Figure 6 is a schematic structural diagram of the stirring blade of the present invention; Figure 7 is a schematic structural diagram of the air jet box and the dust removal assembly of the present invention; Figure 8 is a partial sectional view of the dust removal assembly of the present invention.

[0020] In the figure: 1, mixing barrel; 2, circulating mixing assembly; 21, mixing assembly; 211, rotating rod; 212, cross bar; 213, mixing blade; 2131, horizontal section; 2132, inclined section; 2133, longitudinal section; 22, force-bearing lifting assembly; 221, sliding plate; 222, baffle plate; 223, elastic plate; 224, inclined plate; 225, cross plate; 23, air jet box; 24, dust removal assembly; 241, U-shaped pipe; 242, air extraction pipe; 243, air extraction hole; 244, dust accumulation treatment assembly; 2441, partition plate; 2442, recovery port; 2443, light plate; 2444, limiting rod; 3, limiting plate; 4, metal hemisphere; 5, side plate; 6, bolt; 7, feed hopper. Specific implementation manner

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1 In order to achieve the purpose of circulating and mixing concrete batching by relying on the mixing blades, without the situation that an additional set of conveying structure needs to be supported on the basis of the mixing structure, resulting in a significant increase in both production cost and use cost, please refer to Figures 1 - 4 , this embodiment proposes a concrete mixing device, including a mixing barrel 1. A circulating mixing assembly 2 is installed inside the mixing barrel 1. The circulating mixing assembly 2 includes a mixing assembly 21, a force-bearing lifting assembly 22, an air jet box 23, and a dust removal assembly 24. Two mixing assemblies 21 are installed at the center of the mixing barrel 1 and rotate in opposite directions. A motor for driving the mixing assembly 21 to rotate is installed on one side of the mixing barrel 1. The force-bearing lifting assembly 22 is installed on both sides of the inner wall of the mixing barrel 1. The air jet box 23 is installed directly above the two mixing assemblies 21. The bottom of the air jet box 23 is perforated. One side of the air jet box 23 is connected to an intake pipe. The dust removal assembly 24 is installed on the top of the mixing barrel 1.

[0023] During use, the motor drives the side of the two mixing assemblies 21 close to the center of the mixing barrel 1 to always rise. In this way, the mixing assembly 21 will drive the concrete batching at the center of the mixing barrel 1 to be pushed upward, and then move to the highest point of the concrete in the mixing barrel 1 and be pushed from the middle of the mixing barrel 1 to the edge. The concrete batching in the mixing barrel 1 produces two different motion states in the middle and at the edge of the mixing barrel, specifically as follows: In the middle of the mixing barrel 1, the mixing assembly 21 pushes the concrete batching up to the highest point and then continues to push it towards the edge, forming a concave pit in the middle of the mixing barrel 1. After a part of the foam falls into the concave pit and its height decreases, the concrete on both sides gradually fills the concave pit, squeezing and mixing the concrete that enters the concave pit. Together with the air jet box 23, the foam on the surface of the concrete is blown down into the concave pit, ensuring that the foam can descend into the interior of the concrete. Eventually, the upper surface of the concrete batching returns to a flat surface again. By continuously repeating this process, the foam floating on the surface of the concrete in the middle of the mixing barrel 1 continuously enters the interior of the concrete and is mixed; At the edge of the mixing barrel 1, since the concrete in the middle of the mixing barrel 1 is pushed towards the edge of the mixing barrel 1, the concrete that moves to the edge of the mixing barrel 1 will squeeze downwards on the force-bearing lifting assembly 22 from above, pushing the force-bearing lifting assembly 22 to deform and descend. During the descending process of the force-bearing lifting assembly 22, it pushes the concrete and foam at the edge of the mixing barrel 1 to descend, causing the foam floating on the surface of the concrete to descend into the interior of the concrete and be mixed. During the period when the concrete in the middle of the mixing barrel 1 is not pushed towards the edge, the force-bearing lifting assembly 22 rises to the starting point. By continuously repeating this process, the foam floating on the surface of the concrete at the edge of the mixing barrel 1 continuously enters the interior of the concrete and is mixed.

[0024] In summary, by utilizing the cooperation of the rotation directions of the two mixing assemblies 21 and the force-bearing lifting assembly 22, only by the mixing structure performing the mixing action on the concrete, the cyclic mixing process of the concrete from the bottom through the highest point and then being pushed to the edge and descending back to the bottom can be completed. The purpose of cyclic mixing of foamed concrete is achieved by using the original structure inside the mixing barrel, thereby reducing the equipment cost and usage cost required for longitudinal mixing of the concrete batching. At the same time, the foam is moved into the interior of the concrete from multiple positions in the middle and at the edge of the concrete, accelerating the speed of mixing the foam into the interior of the concrete.

[0025] In order to utilize the process of the concrete being pushed from the middle to the edge to assist the foam in entering the interior of the concrete, refer to Figure 4 , the force-bearing lifting assembly 22 includes a sliding plate 221, a baffle plate 222, an elastic plate 223, an inclined plate 224, and a cross plate 225. The sliding plate 221 slides along the inner wall of the mixing barrel 1. The baffle plate 222 is installed on the top of the sliding plate 221. The elastic plate 223 is installed between the baffle plate 222 and the mixing barrel 1. The width of the cross plate 225 is smaller than the width of the inclined plate 224. The cross plate 225 is provided with air permeation holes. The extending direction of the baffle plate 222 faces the axis of the mixing assembly 21. The bottom of the elastic plate 223 is provided with a material leakage port.

[0026] During use, the stirring assembly 21 pushes the concrete in the middle of the mixing barrel 1 to the highest point and then moves it towards the edge, increasing and raising the concrete at the edge of the mixing barrel 1. A part of the concrete moving towards the edge of the mixing barrel 1 moves above the force-bearing lifting assembly 22 and then slides onto the inclined plate 224 along the elastic plate 223. One function of the elastic plate 223 is to reduce the concrete falling to the baffle 222 and lower the possibility of the concrete entering the gap between the baffle 222 and the mixing barrel 1. Another function is to drive the force-bearing lifting assembly 22 to rise to the starting point after the concrete pressing down on the force-bearing lifting assembly 22 decreases. At the same time, when the baffle 222 rises to the starting point and is at the highest point above the concrete, since the baffle 222 is inclined towards the axis of the stirring assembly 21, the concrete entering above the baffle 222 can also move along the baffle 222 towards the elastic plate 223 and finally slide out from the material leakage opening of the elastic plate 223, further reducing the possibility of the concrete staying on the baffle 222 and then entering the gap between the baffle 222 and the mixing barrel 1.

[0027] When the concrete moves onto the inclined plate 224, the gravity of the increased concrete on the inclined plate 224 pushes the inclined plate 224 down, pulling the elastic plate 223 downward and deforming it. The descending inclined plate 224 pushes the concrete and foam below it down, causing the foam to enter the concrete and mix with it. When all the concrete on the elastic plate 223 has slid off and the elastic plate 223 pulls the sliding plate 221 and the inclined plate 224 towards the starting point, part of the foam that has entered the concrete moves through the air holes on the cross plate 225 and the cross plate 225 descends. During the descent of the cross plate 225, the foam below the cross plate 225 is easily attached to the air holes and difficult to move above the cross plate 225, so that the foam is continuously transported to the lower inclined plate 224 and cross plate 225. The inclined plate 224 can reduce the lateral movement of the concrete below it when descending, achieving the purpose of pushing more concrete down, and can better push the concrete and foam down when descending, while blocking the rise of the foam when rising, thus achieving the purpose of continuously mixing the foam at the edge of the mixing barrel 1 with the concrete.

[0028] Embodiment 2 In order to make the stirring blades 213 push more concrete to move when rotating, so as to make the concrete circulate and stir faster, refer to Figures 1 - 6, on the basis of Embodiment 1, the stirring assembly 21 includes a rotating rod 211, a cross bar 212 and stirring blades 213. The rotating rod 211 is rotatably connected to the stirring barrel 1, and the motor is drivingly connected to the rotating rod 211. The cross bar 212 is installed on the outside of the rotating rod 211, and the stirring blades 213 are installed on the cross bar 212. The stirring blades 213 include a horizontal section 2131, an inclined section 2132 and a longitudinal section 2133. The horizontal section 2131 is installed on the cross bar 212, the inclined sections 2132 are installed on both sides of the horizontal section 2131, and the longitudinal section 2133 is installed on the side of the inclined section 2132 away from the horizontal section 2131. A limiting plate 3 is fixedly connected to the side of the stirring blade 213 close to the rotating rod 211, and a metal hemisphere 4 is fixedly connected to the side of the stirring blade 213 away from the limiting plate 3.

[0029] During use, the motor drives the rotating rod 211, the cross bar 212 and the stirring blades 213 to rotate. The horizontal section 2131, the inclined section 2132 and the longitudinal section 2133 form a frame shape, reducing the outflow of the concrete inside during movement, and being able to better drive the concrete at a lower position to move to a higher position. During the process of the stirring blades 213 driving the concrete to move, when the concrete inside the stirring blades 213 is driven, it will receive a reaction force from the concrete in front, causing the concrete inside the stirring blades 213 to move towards both ends. When the concrete inside the stirring blades 213 moves towards the end close to the rotating rod 211, it is blocked by the limiting plate 3, making the concrete better stay inside the stirring blades 213. When the concrete inside the stirring blades 213 moves towards the end away from the rotating rod 211, the concrete is blocked by the metal hemisphere 4 and then flows along the surface of the metal hemisphere 4 to both sides to a wider range, being able to limit the concrete being moved, making more of the concrete at the bottom of the stirring barrel 1 move to a higher place, improving the effect of cyclic stirring of the concrete, and at the same time guiding the concrete to move to a wider range, making the concrete move in more directions and then improving the stirring effect.

[0030] Embodiment 3 During the concrete mixing process, dust is likely to appear, and more dust is also likely to be generated when the airflow in the air jet box 23 assists in pushing the foam down into the concrete. In order to handle the dust during the concrete mixing process, referring to Figures 1 - 8 , on the basis of Embodiment 1, the dust removal assembly 24 includes a U-shaped pipe 241 installed on the top of the stirring barrel 1. Both ends of the U-shaped pipe 241 are communicated with an air extraction pipe 242. An air extraction hole 243 is opened on the side of the U-shaped pipe 241 away from the air extraction pipe 242, and dust accumulation treatment components 244 are installed at both ends of the U-shaped pipe 241.

[0031] During use, the air extraction pipe 242 is connected to the gas transmission system, continuously sucking out the air inside the U-shaped pipe 241. Then, the air inside the mixing barrel 1 is sucked into the U-shaped pipe 241 under the air pressure difference inside and outside the U-shaped pipe 241, driving the dust inside the mixing barrel 1 to enter the U-shaped pipe 241 along with the air. The air passes through the U-shaped pipe 241 and is discharged from the air extraction pipe 242, while part of the dust in the air gradually settles at the dust accumulation treatment component 244, capable of continuously sucking out the dust inside the mixing barrel 1 and causing the dust to settle inside the U-shaped pipe 241, reducing the possibility of dust emission around during concrete mixing.

[0032] Since the jet box 23 continuously jets air onto the concrete from above, the possibility of the concrete batching being blown away along with the air and dust increases, resulting in an increase in the waste degree of the concrete batching. In order to realize the recycling of dust, referring to Figure 8 , the dust accumulation treatment component 244 includes partition plates 2441 installed at both ends of the U-shaped pipe 241. A dust accumulation chamber is formed between two adjacent partition plates 2441. A recovery port 2442 communicating with the mixing barrel 1 is opened in the dust accumulation chamber. A lightweight plate 2443 for covering the recovery port 2442 is installed inside the mixing barrel 1. A limiting rod 2444 that extends actively into the interior of the U-shaped pipe 241 is provided on one side of the lightweight plate 2443, and a limiting block is installed on the limiting rod 2444.

[0033] During use, the dust inside the mixing barrel 1 enters the interior of the U-shaped pipe 241 along with the air through the air extraction holes 243. The air is discharged after passing through the air extraction pipe 242, while part of the dust in the air is blocked by the partition plate 2441 when moving to the partition plate 2441, and then settles in the dust accumulation chamber. The air inside the mixing barrel 1 also enters the U-shaped pipe 241 from the recovery port 2442 under the action of the air pressure difference inside and outside the U-shaped pipe 241. The flowing air drives the lightweight plate 2443 to move towards the recovery port 2442, finally causing the lightweight plate 2443 to block the recovery port 2442, so that the dust settled in the dust accumulation chamber will not be blown away by the air blown into the U-shaped pipe 241 from the recovery port 2442. When the air extraction pipe 242 stops extracting air, the lightweight plate 2443 slides downward under its own gravity and no longer blocks the recovery port 2442. The dust settled in the dust accumulation chamber drops from the recovery port 2442 into the interior of the mixing barrel 1 and mixes with the concrete, capable of closing the recovery port 2442 when dust removing the mixing concrete, causing the dust to settle in the dust accumulation chamber, and automatically opening the recovery port 2442 when stopping dust removal, enabling the recovered dust to re-enter the interior of the mixing barrel 1 and mix with the concrete, reducing the waste caused by the concrete batching being blown away along with the dust.

[0034] For the convenience of installing the dust removal component 24, referring to Figure 1 and Figure 8, a side plate 5 is fixedly connected to the bottom of the dust removal assembly 24. A bolt 6 is installed between the side plate 5 and the stirring barrel 1. The top of the stirring barrel 1 is communicated with a feed hopper 7. During use, the dust removal assembly 24 is placed on the stirring barrel 1, the side plate 5 is attached to the stirring barrel 1, and then the bolt 6 is rotated to pass through the side plate 5 and the stirring barrel 1 to fix the dust removal assembly 24 on the stirring barrel 1.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Concrete mixing equipment, including a mixing barrel (1), with a circulating mixing assembly (2) installed inside the mixing barrel (1), characterized in that: The circulating mixing assembly (2) includes a mixing assembly (21), a force-bearing lifting assembly (22), a jet box (23) and a dust removal assembly (24). Two mixing assemblies (21) are installed at the center of the mixing barrel (1) and rotate in opposite directions. A motor for driving the rotation of the mixing assembly (21) is installed on one side of the mixing barrel (1). The force-bearing lifting assembly (22) is installed on both sides of the inner wall of the mixing barrel (1). The jet box (23) is installed directly above the two mixing assemblies (21). The bottom of the jet box (23) is perforated. One side of the jet box (23) is connected to an intake pipe. The dust removal assembly (24) is installed on the top of the mixing barrel (1).

2. The concrete mixing equipment according to claim 1, characterized in that, The force-bearing lifting assembly (22) includes a sliding plate (221), a baffle plate (222), an elastic plate (223), an inclined plate (224) and a cross plate (225). The sliding plate (221) slides along the inner wall of the mixing barrel (1). The baffle plate (222) is installed on the top of the sliding plate (221). The elastic plate (223) is installed between the baffle plate (222) and the mixing barrel (1). The width of the cross plate (225) is smaller than that of the inclined plate (224). The cross plate (225) is provided with ventilation holes.

3. The concrete mixing equipment according to claim 2, characterized in that, The extending direction of the baffle plate (222) faces the axis of the mixing assembly (21). A material leakage opening is provided at the bottom of the elastic plate (223).

4. The concrete mixing equipment according to claim 1, characterized in that, The mixing assembly (21) includes a rotating rod (211), a cross bar (212) and mixing blades (213). The rotating rod (211) is rotatably connected to the mixing barrel (1). The motor is drivingly connected to the rotating rod (211). The cross bar (212) is installed on the outside of the rotating rod (211). The mixing blades (213) are installed on the cross bar (212).

5. The concrete mixing equipment according to claim 4, characterized in that, The mixing blades (213) include a horizontal section (2131), an inclined section (2132) and a longitudinal section (2133). The horizontal section (2131) is installed on the cross bar (212). The inclined sections (2132) are installed on both sides of the horizontal section (2131). The longitudinal sections (2133) are installed on the side of the inclined sections (2132) away from the horizontal section (2131).

6. The concrete mixing equipment according to claim 5, characterized in that, A limiting plate (3) is fixedly connected to one side of the mixing blade (213) close to the rotating rod (211). A metal hemisphere (4) is fixedly connected to the side of the mixing blade (213) away from the limiting plate (3).

7. The concrete mixing equipment according to claim 1, characterized in that The dust removal assembly (24) includes a U-shaped pipe (241) installed on the top of the mixing barrel (1). Both ends of the U-shaped pipe (241) are connected to an air extraction pipe (242). Air extraction holes (243) are provided on the side of the U-shaped pipe (241) away from the air extraction pipes (242). Dust accumulation treatment assemblies (244) are installed at both ends of the U-shaped pipe (241).

8. The concrete mixing equipment according to claim 7, characterized in that, The dust accumulation treatment component (244) includes partition plates (2441) installed at both ends of the U-shaped pipe (241). A dust accumulation chamber is formed between two adjacent partition plates (2441). A recovery port (2442) communicating with the mixing barrel (1) is provided in the dust accumulation chamber. A lightweight plate (2443) for covering the recovery port (2442) is installed inside the mixing barrel (1). A limiting rod (2444) whose one side extends movably into the U-shaped pipe (241) is provided on one side of the lightweight plate (2443). A limiting block is installed on the limiting rod (2444).

9. The concrete mixing equipment according to claim 1, characterized in that A side plate (5) is fixedly connected to the bottom of the dust removal component (24). A bolt (6) is installed between the side plate (5) and the mixing barrel (1). A feed hopper (7) is communicated with the top of the mixing barrel (1).

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