A soft and hard waste soil cooperative crushing and circulating stirring anti-agglomeration production system

Abstract

The application discloses a kind of soft and hard waste soil collaborative crushing and cyclic stirring anti-agglomeration production system, belongs to waste soil resource regeneration technical field.Based on the processing condition of soft and hard waste soil in prior art cannot simultaneously consider the processing requirement of soft and hard waste soil, the application includes hard soil crushing mechanism, soft soil kneading mechanism, screening mechanism, stirring host;Hard soil feed branch, hard soil crushing cavity, soft soil feed branch, soft soil kneading cavity, hard soil crushing cavity is impacted and crushed to hard soil, soft soil kneading cavity is kneaded and crushed to high viscosity soft soil, agglomerated soil body is handled, and by the branch processing of soft and hard waste soil, screening qualified material, the unqualified soft and hard waste soil is classified and returned to carry out secondary processing, eliminates the processing interference of different physical properties materials, and reduces material rejection rate.

Description

Technical Field

[0001] This invention belongs to the field of waste soil resource recycling technology, specifically relating to an anti-caking production system for soft and hard waste soil through synergistic crushing and circulating mixing. Background Technology

[0002] Construction projects generate a large amount of waste soil, which generally includes a mixture of soft silt, cohesive clumps, silty clay, hardened soil, and hard gravelly soil. Because the physical properties of different types of waste soil vary greatly, hard soil has large particle sizes and cannot be used directly, while soft soil has high water content and is difficult to disperse evenly. The crushing, shaping, and processing requirements for the two types of soil are completely different.

[0003] In existing equipment, soft and hard waste soils are generally mixed and fed into a single crushing chamber for processing during industrial continuous production. However, due to the large differences in properties between soft and hard soils, a single crushing chamber can only be adapted to a single crushing condition and cannot simultaneously meet the needs of impact crushing of hard soils and the needs of crushing and dispersing soft soils. During the processing, it is very easy for the particle size of hard soils to be substandard and the soft soils to be over-crushed, which seriously restricts the quality of waste soil resource recovery products.

[0004] Existing patent CN117885196A discloses an intelligent multi-functional fluidized solidified soil production system. This patent utilizes an extrusion crusher to crush slag containing large stones into smaller stones. The small stones, various types of sand, and other raw materials are fed into an extrusion mixer. Slurry is then introduced into the extrusion mixer and vigorously stirred to form a solidified soil slurry. Subsequently, the solidified soil slurry is mixed with a solidifying agent in a fluidized solidified soil mixing station to form a fluidized solidified soil slurry. However, this method is only applicable to a single-path extrusion crusher and cannot achieve differentiated processing of soft and hard soils.

[0005] In summary, given that existing technologies cannot simultaneously address the processing needs of both soft and hard waste soil, it is necessary to design an anti-caking production system that combines co-crushing and circulating mixing of soft and hard waste soil. Summary of the Invention

[0006] The purpose of this invention is to provide an anti-caking production system for co-crushing and circulating mixing of soft and hard waste soil, in order to solve the problems mentioned in the background art. The above-mentioned objective of this invention is achieved through the following technical solution: an anti-caking production system for co-crushing and circulating mixing of soft and hard waste soil, comprising a hard soil crushing mechanism, a soft soil kneading mechanism, a screening mechanism, and a mixing host; The hard soil crushing mechanism is provided with a hard soil feeding branch and a hard soil crushing chamber; the soft soil kneading mechanism is provided with a soft soil feeding branch and a soft soil kneading chamber. The hard soil feed branch is connected to the hard soil crushing chamber; the soft soil feed branch is connected to the soft soil kneading chamber. The feed end of the screening mechanism is connected to the discharge end of the hard soil crushing chamber and the soft soil kneading chamber respectively. The screening mechanism is provided with a hard material return port, a soft material return port and a qualified material discharge port. The hard material return port is connected to the hard soil feed branch through the first return pipe, and the soft material return port is connected to the soft soil feed branch through the second return pipe. The mixing host is equipped with a layered mixing paddle and a wall scraping assembly, and the feed end of the mixing host is connected to the qualified material discharge port.

[0007] Furthermore, the hard soil breaking chamber includes a rotating spindle, a breaking hammer, and a chamber liner. The breaking hammer is fixed to the outer wall of the rotating spindle, and the chamber liner is attached to the inner wall of the chamber.

[0008] Furthermore, the soft soil crushing chamber is equipped with two parallel and opposite rollers, forming a roller gap between the rollers, and protruding tooth blocks are fixed on the outer wall of the rollers.

[0009] Furthermore, the roller gap adjustment range is 5mm-30mm.

[0010] The hard soil crushing mechanism has an independent hard soil feeding branch and a hard soil crushing chamber, which is specifically designed to accept hard soil. The hard soil is crushed by impact from the crushing hammer. The soft soil kneading mechanism has an independent soft soil feeding branch and a soft soil kneading chamber. The soft soil is crushed by squeezing and kneading the soft soil by the reverse protruding toothed roller.

[0011] Furthermore, the screening mechanism is provided with an upper screen plate and a lower screen plate; the feed inlet of the upper screen plate is connected to the discharge outlet of the hard soil crushing chamber, and the feed inlet of the lower screen plate is connected to the discharge outlet of the soft soil kneading chamber.

[0012] Furthermore, the screening mechanism has three ports: a hard material return port, a soft material return port, and a qualified material discharge port.

[0013] The upper screen plate intercepts large, uncrushed, hard soil clumps that do not meet the standards and discharges them from the hard material return port. They are then sent back to the hard soil crushing chamber for secondary crushing through the first return pipe. The lower screen plate retains insufficiently broken-up, sticky soft soil clumps and discharges them from the soft material return port. They are then sent back to the soft soil kneading chamber for re-kneading through an independent second return pipe. The qualified mixed soil material falling from below the two screen plates is sent into the mixing host from the qualified material outlet.

[0014] Furthermore, the layered stirring paddles are fixed in alternating layers along the axial direction of the stirring main shaft.

[0015] Furthermore, the soft soil crushing mechanism, screening mechanism, and mixing host are all detachably assembled using bolts.

[0016] The beneficial effects of this invention are: 1. This invention separates the hard soil feeding branch, the hard soil crushing chamber, the soft soil feeding branch, and the soft soil kneading chamber. The hard soil crushing chamber impacts and crushes the hard soil, while the soft soil kneading chamber kneads and breaks down highly viscous soft soil and clumps of soil. This allows for the independent processing and crushing of soft and hard waste soil, overcoming the problems of substandard hard soil crushing and excessive soft soil crushing caused by the mixing of soft and hard materials.

[0017] 2. This invention achieves precise grading of hard large blocks, soft lumps, and qualified materials through upper and lower screen plates. It also has a hard material return port, a soft material return port, and a qualified material discharge port, so that unqualified waste soil can be returned to a dedicated processing chamber, avoiding the vicious cycle of processing materials with different physical properties in the same way, and making the output particle size uniform.

[0018] 3. This invention separates soft and hard waste soil for processing, screens qualified materials, and recycles unqualified soft and hard waste soil for secondary processing. This eliminates processing interference from materials with different physical properties, reduces material scrap rate, and improves the stability of waste soil resource processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the anti-caking production system in an embodiment of the present invention; In the diagram: 1-hard soil crushing mechanism, 2-soft soil kneading mechanism, 3-screening mechanism, 4-mixing host, 31-hard material return port, 32-soft material return port, 33-qualified material discharge port, 41-layer mixing paddle, 42-wall scraping component.

[0020] Figure 2 This is a schematic diagram of the hard soil crushing mechanism according to an embodiment of the present invention; In the diagram: 11-hard soil feed branch, 12-hard soil crushing chamber.

[0021] Figure 3 This is a schematic diagram of the soft soil crushing mechanism according to an embodiment of the present invention; In the diagram: 21 - soft soil feed branch, 22 - soft soil crushing chamber. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0024] Example 1 like Figure 1As shown, an anti-caking production system for co-crushing and circulating mixing of soft and hard waste soil includes a hard soil crushing mechanism 1, a soft soil kneading mechanism 2, a screening mechanism 3, and a mixing host 4; the hard soil crushing mechanism 1, the soft soil kneading mechanism 2, the screening mechanism 3, and the mixing host 4 are all detachably assembled by bolts.

[0025] like Figure 2 As shown, the hard soil crushing mechanism 1 is provided with a hard soil feeding branch 11 and a hard soil crushing chamber 12. The hard soil feeding branch 11 is connected to the hard soil crushing chamber 12. A rotating spindle, a crushing hammer, and a chamber liner are installed in the hard soil crushing chamber 12. The crushing hammer is fixed to the outer wall of the rotating spindle, and the chamber liner is attached to the inner wall of the chamber. An adjustable gap of 10mm-50mm is reserved between the crushing hammer and the chamber liner.

[0026] like Figure 3 As shown, the soft soil crushing mechanism 2 is provided with a soft soil feeding branch 21 and a soft soil crushing chamber 22; the soft soil feeding branch 21 is connected to the soft soil crushing chamber 22; the soft soil crushing chamber 22 is provided with two parallel and opposite rollers, the outer wall of the rollers is fixed with protruding tooth blocks, and an adjustable roller gap is formed between the two rollers, with an adjustment range of 5mm-30mm.

[0027] The feed end of the screening mechanism 3 is connected to the discharge end of the hard soil crushing chamber 12 and the soft soil kneading chamber 22 respectively. The screening mechanism 3 includes an upper screen plate and a lower screen plate. The screening mechanism 3 has three ports, namely a hard material return port 31, a soft material return port 32, and a qualified material discharge port 33. The upper screen plate has a screen hole diameter of 40mm, corresponding to the hard material return port 31, to intercept substandard hard soil clods. The lower screen plate has a screen hole diameter of 15mm, corresponding to the soft material return port 32, to retain sticky soft soil clumps. The area below the two screen plates is connected to the qualified material discharge port 33.

[0028] The hard material return port 31 is connected to the hard soil feed branch 11 via a first return pipe, and the soft material return port 32 is connected to the soft soil feed branch 21 via a second return pipe. The two return pipes are arranged independently, and material elevators are installed on both pipes. The first return pipe transports large pieces of hard material back to the hard soil feed branch 11, and the second return pipe transports clumps of soft soil back to the soft soil feed branch 21.

[0029] The mixing host 4 is equipped with a layered mixing blade 41, a wall scraping assembly 42, and the feeding end of the mixing host 4 is connected to the qualified material discharge port 33. The mixing host 4 is equipped with a layered mixing blade 41 and a wall scraping assembly 42. The blades of the layered mixing blade 41 are fixed in layers along the axial direction of the mixing main shaft, and the wall scraping plate rotates synchronously with the main shaft and the plate surface is attached to the inner wall of the mixing drum.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A production system for preventing clumping of soft and hard waste soil through synergistic crushing and circulating mixing, characterized in that, It includes a hard soil crushing mechanism (1), a soft soil kneading mechanism (2), a screening mechanism (3), and a mixing host (4); The hard soil crushing mechanism (1) is provided with a hard soil feeding branch (11) and a hard soil crushing chamber (12); the soft soil kneading mechanism (2) is provided with a soft soil feeding branch (21) and a soft soil kneading chamber (22). The hard soil feed branch is connected to the hard soil crushing chamber (12); the soft soil feed branch (21) is connected to the soft soil kneading chamber (22). The feed end of the screening mechanism (3) is connected to the discharge end of the hard soil crushing chamber (12) and the soft soil kneading chamber (22), respectively. The screening mechanism (3) is provided with a hard material return port (31), a soft material return port (32) and a qualified material discharge port (33). The hard material return port (31) is connected to the hard soil feed branch (11) through the first return pipe, and the soft material return port (32) is connected to the soft soil feed branch (21) through the second return pipe. The mixing host (4) is equipped with a layered mixing paddle (41) and a wall scraping assembly (42). The feed end of the mixing host (4) is connected to the qualified material discharge port (33).

2. The anti-caking production system for synergistic crushing and circulating mixing of soft and hard waste soil according to claim 1, characterized in that, The hard soil breaking chamber (12) includes a rotating main shaft, a breaking hammer, and a chamber liner. The breaking hammer is fixed to the outer wall of the rotating main shaft, and the chamber liner is attached to the inner wall of the chamber.

3. The anti-caking production system for synergistic crushing and circulating mixing of soft and hard waste soil according to claim 1, characterized in that, The soft soil crushing chamber (22) is provided with two parallel and opposite rollers, forming a roller gap between the rollers, and the outer wall of the rollers is fixed with protruding tooth blocks.

4. The anti-caking production system for synergistic crushing and circulating mixing of soft and hard waste soil according to claim 3, characterized in that, The roller gap adjustment range is 5mm-30mm.

5. The anti-caking production system for synergistic crushing and circulating mixing of soft and hard waste soil according to claim 1, characterized in that, The screening mechanism (3) is equipped with an upper screen plate and a lower screen plate inside.

6. The anti-caking production system for synergistic crushing and circulating mixing of soft and hard waste soil according to claim 5, characterized in that, The upper screen plate inlet is connected to the outlet of the hard soil crushing chamber (12), and the lower screen plate inlet is connected to the outlet of the soft soil kneading chamber (22).

7. The anti-caking production system for synergistic crushing and circulating mixing of soft and hard waste soil according to claim 1, characterized in that, The layered stirring paddle (41) is fixed in layers along the stirring main shaft axis.

8. The anti-caking production system for synergistic crushing and circulating mixing of soft and hard waste soil according to claim 1, characterized in that, The soft soil crushing mechanism (2), screening mechanism (3), and mixing host (4) are all detachably assembled by bolts.

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