Sludge treatment and recovery device for construction site

Abstract

The invention relates to the technical field of industrial waste recovery, in particular to a sludge treatment and recovery device for a construction site, which comprises a crushing mechanism for crushing stones in raw materials; the compression mechanism is positioned below the crushing mechanism, and is used for compressing the crushed raw materials and squeezing out water; the roller screen mechanisms are connected with the compression mechanism and used for screening out stones in the compressed raw materials, the number of the roller screen mechanisms is multiple, and the filter calibers of the roller screen mechanisms are reduced accordingly; the water filtering mechanism comprises a water filtering pipe, filtering belts and an adsorption layer, the water filtering pipe is connected with the compression mechanism, the filtering belts are arranged into multiple groups from top to bottom, and the multiple groups of filtering belts are connected with the roller screen mechanism from front to back in a one-to-one correspondence mode from top to bottom in the raw material conveying direction. The stone blocks from large to small serve as the filter layer, water is filtered through the stone blocks from large to small, a natural filter screen is formed by the stone blocks, and the problem of filter screen blockage is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial waste recycling, and in particular to a sludge treatment and recycling device for construction sites. Background Art

[0002] In various construction sites, a large amount of waste will be generated. How to handle the waste is a common problem. At present, the treatment of sludge at construction sites mainly relies on physical separation and mechanical dewatering technologies. Common devices include static filtration equipment, centrifugal dehydrators, and filter presses, etc.

[0003] Devices using multi-pipeline transportation, such as the communicating pipe structure, are prone to blockage due to impurity particles and need to be frequently shut down for cleaning, which affects the construction continuity. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, one of the purposes of the present invention is to provide a sludge treatment and recycling device for construction sites that is not easily blocked.

[0005] The above application purpose of the present invention is achieved through the following technical solutions:

[0006] A sludge treatment and recycling device for construction sites includes:

[0007] A crushing mechanism for crushing stones in the raw materials;

[0008] A compression mechanism located below the crushing mechanism for compressing the crushed raw materials and squeezing out the moisture;

[0009] A rolling screen mechanism connected to the compression mechanism for screening out stones in the compressed raw materials. The rolling screen mechanism is provided with multiple groups and its filtering aperture gradually becomes smaller;

[0010] A water filtering mechanism, which includes a water filter pipe, a filter belt, and an adsorption layer. The water filter pipe is connected to the compression mechanism. The filter belts are arranged in multiple groups from top to bottom. From the perspective of the conveying direction of the raw materials, the multiple groups of filter belts are connected to the rolling screen mechanism from front to back one by one corresponding from top to bottom.

[0011] As a further implementation manner of the sludge treatment and recycling device for construction sites disclosed by the present invention, the compression mechanism includes a protective shell. A rotating rod is rotatably connected inside the protective shell, and a spiral compression sheet is fixedly installed on the rotating rod. The pitch of the spiral compression sheet gradually decreases.

[0012] As a further implementation manner of the sludge treatment and recycling device for construction sites disclosed by the present invention, the lower end surface of the protective shell of the compression mechanism is provided with a mesh.

[0013] As a further embodiment of the sludge treatment and recycling device for construction sites disclosed in the present invention, the rotary sieve mechanism includes an outer housing, and a rotary sieve barrel is rotatably installed inside the outer housing, and the rotary sieve barrel is inclined.

[0014] As a further embodiment of the sludge treatment and recycling device for construction sites disclosed in the present invention, an external gear is provided on the outer wall of the rotary sieve barrel, a rotary sieve motor is installed inside the outer housing, a rotary sieve gear is installed at the output end of the rotary sieve motor, and the rotary sieve gear meshes with the external gear.

[0015] As a further embodiment of the sludge treatment and recycling device for construction sites disclosed in the present invention, the crushing mechanism includes a protective shell and a base, a vibration compression member is installed inside the protective shell, and the vibration compression member is eccentrically installed on the base.

[0016] As a further embodiment of the sludge treatment and recycling device for construction sites disclosed in the present invention, the crushing mechanism includes a crushing motor, a driving bevel gear is connected to the output end of the crushing motor, and a driven gear connected to the driving bevel gear is installed on the vibration compression member.

[0017] As a further embodiment of the sludge treatment and recycling device for construction sites disclosed in the present invention, a return mechanism is provided below the crushing mechanism. The return mechanism includes a filter screen and a return conveyor belt. The filter screen is located below the discharge port of the crushing mechanism, and the starting point of the transmission of the return conveyor belt is located below the filter screen, and the end point of the transmission is located above the feed port of the crushing mechanism.

[0018] In summary, the present invention includes at least one of the following beneficial technical effects:

[0019] 1. The rotary sieve mechanism is responsible for filtering out the stones in the waste material from large to small in turn. In the water filtering mechanism, the water is filtered by using the stones from large to small as the filtering layer, and a natural filter screen composed of stones is formed, reducing the problem of filter screen blockage.

[0020] 2. Through the cooperation of the crushing mechanism and the return mechanism, the larger stones that have not been completely crushed to the specified volume are sent back to the crushing mechanism for secondary treatment, thereby ensuring the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of a sludge treatment and recycling device for construction sites disclosed in the present invention;

[0022] Figure 2 is the structural schematic diagram of the crushing mechanism of a sludge treatment and recycling device for construction sites disclosed in the present invention;

[0023] Figure 3It is a schematic structural diagram of a compression mechanism of a sludge treatment and recycling device for construction sites disclosed by the present invention;

[0024] Figure 4 It is a schematic structural diagram of a rolling sieve mechanism of a sludge treatment and recycling device for construction sites disclosed by the present invention;

[0025] Figure 5 It is a schematic structural diagram of a water filtering mechanism of a sludge treatment and recycling device for construction sites disclosed by the present invention.

[0026] In the figure, 1. Crushing mechanism; 11. Protective shell; 12. Base; 13. Vibration compression part; 14. Compression motor; 141. Driving bevel gear; 131. Driven gear;

[0027] 2. Compression mechanism; 21. Protective shell; 22. Rotating rod; 221. Spiral compression sheet;

[0028] 3. Rolling sieve mechanism; 31. Outer shell; 32. Rolling sieve barrel; 33. Rolling sieve motor;

[0029] 4. Water filtering mechanism; 41. Water filter pipe; 42. Filter belt; 43. Adsorption layer;

[0030] 5. Return transmission mechanism. Specific implementation mode

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Refer to Figures 1-5 , a sludge treatment and recycling device for construction sites disclosed by the present invention, includes a crushing mechanism 1, a compression mechanism 2, a rolling sieve mechanism 3 and a water filtering mechanism 4.

[0033] Among them, the crushing mechanism 1 is used to crush the stones in the raw materials to ensure the smooth progress of the subsequent processing process. The crushing mechanism 1 includes a protective shell 11 and a base 12. The protective shell 11 is designed in the form of an open upper end, forming a feed inlet for the convenient entry of raw materials. Its interior is hollow, constituting a closed crushing chamber for accommodating the raw materials to be processed and related crushing components.

[0034] The base 12 is cylindrical and serves as the core support component of the entire crushing mechanism 1, providing not only a stable foundation but also carrying the key devices inside. A vibration compression part 13 is rotatably installed on the base 12, and this component is the key to realizing the function of crushing raw materials. It should be noted that the vibration compression part 13 is eccentrically installed with the base 12. This design enables the vibration compression part 13 to generate a periodic offset movement during rotation under the drive of the motor, thereby effectively increasing the chance of contact with the raw materials and improving the crushing efficiency.

[0035] To drive the operation of the vibration compression member 13, a compression motor 14 is fixedly installed on the protective housing 11. The output end of the compression motor 14 is connected with a driving bevel gear 141, while the vibration compression member 13 is equipped with a driven gear 131 meshing with it. When the compression motor 14 starts and begins to rotate, through the transmission between the driving bevel gear 141 and the driven gear 131, the vibration compression member 13 is driven to rotate synchronously. Due to the eccentric installation design of the vibration compression member 13, during the rotation process, some positions of it will have relative displacement with the inner wall of the protective housing 11, thereby generating a compression effect and achieving effective crushing of the relatively large stones in the raw materials.

[0036] A return mechanism 5 can be additionally provided below the crushing mechanism 1. The return mechanism 5 is located below the crushing mechanism 1 and includes a filter screen and a return conveyor belt. The transmission starting point of the return conveyor belt is located below the filter screen, and the transmission end point is located above the feed inlet of the crushing mechanism 1. The filter screen filters out the relatively large stones whose volumes still do not meet the standards and sends them to the position of the return conveyor belt. Through the return conveyor belt, the stones are sent to the feed inlet position of the crushing mechanism 1 for re-crushing.

[0037] To further improve the crushing efficiency and ensure the thorough treatment of the stones in the raw materials, a return mechanism 5 can be additionally provided below the crushing mechanism 1. This design aims to re-send the relatively large stones that have not been completely crushed to the specified volume back to the crushing mechanism 1 for secondary treatment, thereby ensuring the quality of the final product.

[0038] The return mechanism 5 is located directly below the crushing mechanism 1 and mainly includes two parts: a filter screen and a return conveyor belt. The filter screen is placed at the outlet of the crushing chamber and is used to screen out the relatively large stones that still do not reach the ideal size after the initial crushing. These unqualified large stones will be intercepted by the filter screen and guided to the position below it.

[0039] The return conveyor belt is a key component connecting the filter screen and the feed inlet of the crushing mechanism 1. Its transmission starting point is exactly located below the filter screen to receive the unqualified large stones falling from the filter screen; while the transmission end point is set above the feed inlet of the crushing mechanism 1 to facilitate re-introducing these stones into the crushing chamber. When the filter screen filters out the relatively large stones whose volumes still do not meet the standards and sends them to the position of the return conveyor belt, through the continuous operation of the return conveyor belt, these stones will be smoothly and efficiently transported to the feed inlet position of the crushing mechanism 1, and then undergo a second or even multiple crushing processes.

[0040] This return mechanism not only improves the automation degree of the entire system, but also significantly enhances the crushing effect and production efficiency. By continuously recycling the unqualified large stones until they are completely crushed to the required size, it minimizes resource waste to the greatest extent and also ensures the quality control of subsequent processing links.

[0041] Next, the compression mechanism 2 and the rotary sieve mechanism 3 will be described. The compression mechanism 2 is located below the return mechanism 5 and is used to compress the crushed raw materials and squeeze out the moisture. The rotary sieve mechanism 3 is connected to the compression mechanism 2 to screen out the stones in the compressed raw materials.

[0042] Specifically but not limitedly, the compression mechanism 2 includes a protective shell 21 which is designed in a rectangular shape. An opening is provided at its upper end for feeding, and a grid hole is provided at its lower end for filtering out moisture. This design not only ensures that the waste can smoothly enter the compression space but also effectively separates the moisture in it, improving the efficiency of subsequent processing.

[0043] The interior of the protective shell 21 is hollow to form a closed compression space. A rotating rod 22 is rotatably connected within this space. This rotating rod 22 is driven by a motor to achieve rotational motion, and the spiral compression piece 221 fixedly installed on the rotating rod 22 is the core component of the entire compression process. It should be noted that the pitch of the spiral compression piece 221 shows a gradually decreasing trend. This design enables the spiral compression piece 221 to generate a continuous and increasing pressure on the waste during the process of driving the rotating rod 22 to rotate by the motor and driving the spiral compression piece 221 to rotate synchronously due to the change in pitch, thereby achieving an efficient compression effect and fully squeezing out the moisture in it.

[0044] To further improve the moisture filtration effect and reduce the leakage risk of other wastes such as soil, a multi-layer mesh structure can be provided on the lower end face of the protective shell 21 of the compression mechanism 2. These mesh layers can not only provide a more refined filtering function but also effectively prevent larger particle wastes from leaking out from the bottom, ensuring the stable operation of the entire system and the quality control of the final product. Through the above design and improvement, the compression mechanism 2 can filter out the moisture in the waste to the greatest extent while ensuring efficient compression.

[0045] The rotary sieve mechanism 3 includes an outer housing 31. One side of the outer housing 31 facing the discharge of the compression mechanism 2 is open for feeding, the other side is open as an impurity outlet, and the lower side is open for discharging. A rotary sieve barrel 32 is rotatably installed inside the outer housing 31. The rotary sieve barrel 32 is in a grid shape and is inclined. During the rotation of the rotary sieve barrel 32, large particle impurities such as stones are filtered out. An external gear is provided on the outer wall of the rotary sieve barrel 32, and a rotary sieve motor 33 is installed inside the outer housing 31. A rotary sieve gear is installed at the output end of the rotary sieve motor 33, and the rotary sieve gear meshes with the external gear to drive the rotary sieve barrel 32 to rotate through the rotary sieve motor 33. When the material enters the rotary sieve mechanism 3, the rotary sieve barrel 32 starts to rotate under the drive of the rotary sieve motor 33. Due to its inclined setting and grid structure, large particle impurities are intercepted and discharged from the impurity outlet, while the qualified materials are collected through the bottom discharge port.

[0046] In this embodiment, multiple sets of rotary screen mechanisms 3 are provided and their filtering apertures become smaller in sequence, that is, the mesh apertures of the rotary screen barrels 32 gradually become smaller. The multiple sets of rotary screen mechanisms 3 are connected in sequence. The connection method is that the lower part of the previous set of rotary screen mechanism 3 is connected to the feed inlet of the next set of rotary screen mechanism 3.

[0047] Regarding the water filtering mechanism 4, it includes a water filter pipe 41, a filter belt 42, and an adsorption layer 43. The water filter pipe 41 is connected to the compression mechanism 2. The filter belts 42 are arranged in multiple groups from top to bottom. Figure 5 In the shown embodiment, the arrow direction is the water flow direction. From the perspective of the raw material conveying direction, the multiple groups of filter belts 42 are connected to the rotary screen mechanisms 3 one by one from top to bottom and from front to back.

[0048] Specifically, the impurity outlet of the rotary screen mechanism 3 is connected to the filter belt 42. The filter belt 42 is arranged in a mesh shape. When the wastewater in the water filter pipe 41 flows through the filter belt 42, the wastewater is filtered by using waste stones. When the wastewater in the water filter pipe 41 flows through the filter belt 42, the waste stones act as natural filter materials. Due to the grading design of the rotary screen mechanism 3, the stone volumes are arranged from large to small, forming a multi-level filtering barrier, significantly improving the filtering accuracy. The adsorption layer 43 can be set as an activated carbon layer or other adsorbents. The filtered wastewater can be reused as on-site industrial water.

[0049] The implementation principle of this embodiment is as follows: The larger stones in the waste raw materials are crushed by the crushing mechanism 1, and then the raw materials are dehydrated in multiple sets of compression mechanisms 2. The rotary screen mechanism 3 is responsible for filtering out the stones in the waste materials from large to small in sequence. In the water filtering mechanism 4, the water is filtered by using the stones from large to small as the filtering layer, and a natural filter net composed of stones is formed, reducing the problem of filter net blockage.

[0050] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A sludge treatment and recycling device for construction sites, characterized in that: including, a crushing mechanism (1) for crushing stones in raw materials; a compression mechanism (2) located below the crushing mechanism (1) for compressing the crushed raw materials to squeeze out moisture; a rotary sieve mechanism (3) connected to the compression mechanism (2) for sieving out stones in the compressed raw materials, with multiple groups of the rotary sieve mechanism (3) provided and their filtering apertures decreasing successively; a water filtering mechanism (4) including a water filtering pipe (41), a filtering belt (42), and an adsorption layer (43), the water filtering pipe (41) being connected to the compression mechanism (2), the filtering belt (42) being provided in multiple groups from top to bottom, and from the perspective of the raw material conveying direction, the multiple groups of the filtering belt (42) are connected to the rotary sieve mechanism (3) one by one from front to back from top to bottom.

2. The sludge treatment and recycling device for construction sites according to claim 1, wherein: The compression mechanism (2) includes a protective shell (21), a rotating rod (22) is rotatably connected inside the protective shell (21), and a spiral compression sheet (221) is fixedly installed on the rotating rod (22), and the pitch of the spiral compression sheet (221) gradually decreases.

3. The sludge treatment and recycling device for construction sites according to claim 2, wherein: The lower end surface of the protective shell (21) of the compression mechanism (2) is provided with a mesh.

4. A sludge treatment and recycling device for construction sites according to claim 1, characterized in that: The rotary sieve mechanism (3) includes an outer shell (31), a rotary sieve barrel (32) is rotatably installed inside the outer shell (31), and the rotary sieve barrel (32) is inclined.

5. The sludge treatment and recycling device for construction sites according to claim 4, wherein: External gears are provided on the outer wall of the rotary sieve barrel (32), a rotary sieve motor (33) is installed inside the outer shell (31), a rotary sieve gear is installed at the output end of the rotary sieve motor (33), and the rotary sieve gear meshes with the external gears.

6. The sludge treatment and recycling device for construction sites according to claim 1, wherein: The crushing mechanism (1) includes a protective shell (11) and a base (12), a vibration compression member (13) is installed inside the protective shell (11), and the vibration compression member (13) is eccentrically installed on the base (12).

7. A sludge treatment and recycling device for construction sites according to claim 1, characterized in that: The crushing mechanism (1) includes a crushing motor, a driving bevel gear (141) is connected to the output end of the crushing motor, and a driven gear (131) connected to the driving bevel gear (141) is installed on the vibration compression member (13).

8. A sludge treatment and recycling device for construction sites according to claim 7, characterized in that: A return mechanism (5) is provided below the crushing mechanism (1), and the return mechanism (5) includes a filter screen and a return conveyor belt. The filter screen is located below the discharge port of the crushing mechanism (1), and the starting point of the transmission of the return conveyor belt is located below the filter screen, and the ending point of the transmission is located above the feed port of the crushing mechanism (1).

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