Screening device for recycling fine sand in engineering residue soil
By setting cam vibration and crushing shaft in the screening device, combined with the use of filter and stirring shaft, the problem of low screening efficiency of fine sand in slag is solved, and efficient fine sand recovery and purity improvement is achieved.
Patent Information
- Application Number
- CN202421922039.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In the prior art, fine sand in slag has low screening efficiency, and fine sand is easily coated in large pieces of soil, resulting in increased screening difficulty and affecting recycling efficiency and purity.
A system including a screening device and a pretreatment device is designed. By setting a cam on the top of the screening device to drive the screening shell to vibrate, and a crushing shaft and crushing fan blade are arranged in the shell for preliminary crushing. Combined with the use of a filter and a stirring shaft, the fine sand can be graded screening and separation.
It effectively improves the recycling efficiency and purity of fine sand in the slag, avoids device blockage, and improves the separation effect of fine sand.
Smart Images
Figure CN223069591U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of screening devices, in particular to a screening device used for recovering fine sand in engineering slag. Background Art
[0002] The screening device for recovering fine sand from construction slag is a key equipment for processing and recycling waste slag during construction. With the acceleration of urbanization, the amount of construction waste is increasing. How to effectively recycle and utilize these wastes, reduce environmental pollution, and achieve sustainable utilization of resources has become an urgent problem to be solved. In order to improve the resource utilization rate of slag and reduce environmental pollution, screening devices have emerged. The screening device can effectively separate materials of different particle sizes such as fine sand and gravel in the slag, thereby realizing the recycling of valuable materials. The design and application of the screening device can not only reduce the generation of construction waste, but also use the recycled fine sand and other materials for road construction, concrete production, etc., to achieve the recycling of resources.
[0003] Although the prior art uses a screening device to recover and screen fine sand in construction waste, the construction waste is mostly in block form before screening, and a large amount of fine sand is easily covered in large pieces of soil, resulting in lower screening efficiency for the fine sand and increased difficulty in screening the fine sand. Therefore, those skilled in the art provide a screening device for recovering fine sand in construction waste to solve the problems raised in the above-mentioned background technology. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a screening device for recovering fine sand in engineering slag. The utility model provides a screening device for recovering fine sand in engineering slag, which can effectively improve the efficiency of the device in recovering fine sand in slag by setting a screening device and improve the purity of the recovered fine sand by setting a pretreatment device.
[0005] To achieve the above object, the utility model provides the following technical solutions: A screening device for fine sand recovery in construction waste soil, including a screening device and a pretreatment device. The pretreatment device is arranged at the rear side near the top of the screening device. The screening device includes a support frame. One side in the middle of the top of the support frame is fixedly connected with a first mounting frame. A first motor is fixedly connected to the upper position of the inner side wall of the first mounting frame. A waste water tank is fixedly connected to the front end of the support frame. The other side in the middle of the top of the support frame is fixedly connected with a second mounting frame. A cam is rotatably connected to the inner side wall of the second mounting frame. A first fixing frame is fixedly connected to the rear side near the top of the support frame. The front side of the top of the first fixing frame is hinged with a screening shell, and the lower position near the rear end of the screening shell is hinged with the front end of the first fixing frame. Three guide plates are fixedly connected to the inner side wall of the screening shell near the rear side. Three filter screens are linearly arranged on the inner side wall of the screening shell. Three second motors are linearly arranged on the other side of the screening shell. Three stirring shafts are linearly arranged on the inner side wall of the screening shell. A number of stirring blades are respectively arranged in a circumferential array on the side walls of the three stirring shafts. A fixing plate is fixedly connected to the front side near the bottom end of the screening shell. Springs are respectively fixedly connected to both sides of the bottom end of the fixing plate;
[0006] Through the above technical solutions, by setting the screening device and arranging a cam at the top of the support frame, the first motor is used to drive the cam to rotate, which can vibrate the screening shell. At the same time, the filter screen in the screening shell is used to classify and screen fine sand of different specifications, effectively improving the efficiency of the device for recovering fine sand from construction waste soil.
[0007] Furthermore, the pretreatment device includes a second fixing frame. The front end of the second fixing frame is fixedly connected with a housing. The top of the housing is fixedly connected with a feed inlet. The other side of the housing is fixedly connected with a third motor. A crushing shaft is rotatably connected to the inner side wall of the housing. A number of crushing blades are linearly arranged on the side wall of the crushing shaft. The rear end of the second fixing frame is fixedly connected with a water tank. A water pipe is fixedly connected to the middle of the front end of the water tank. A water pump is arranged on the side wall of the water pipe. The bottom end of the housing is fixedly connected with a discharge port. The bottom end of the housing is fixedly connected with the top of the first fixing frame;
[0008] Through the above technical solutions, by setting the pretreatment device, a crushing shaft is arranged in the housing, and crushing blades are arranged on the side wall of the crushing shaft, which can preliminarily process the construction waste soil added to the housing, facilitate the preliminary crushing of the construction waste soil, avoid the blockage of the device by the construction waste soil, and at the same time add water to the construction waste soil, so that the soil and sand can be better separated, improving the purity of the recovered fine sand.
[0009] Further, the output end of the first motor penetrates through the inner side wall of the first mounting bracket and one side of the second mounting bracket and is fixedly connected to one side of the cam. One end of each of the two springs is fixedly connected to the front side of the top end of the first mounting bracket, and the other end of each of the two springs is fixedly connected to the bottom end of the fixing plate.
[0010] Through the above technical solution, the cam is effectively driven to rotate, and the fine sand in the screening shell is screened.
[0011] Further, the output ends of the three second motors respectively penetrate through the other side wall of the screening shell and are fixedly connected to the other ends of the three stirring shafts. The mesh diameters of the three filter meshes increase sequentially from front to back, and the three filter meshes are respectively located at the front ends of the three stirring shafts.
[0012] Through the above technical solution, the stirring shafts are effectively driven to rotate.
[0013] Further, the output end of the third motor penetrates through the other side wall of the housing and is fixedly connected to the other end of the crushing shaft. The discharge port is communicated with the inside of the housing, and the discharge port and the three guide plates are located in the same vertical plane.
[0014] Through the above technical solution, the crushing shaft is effectively driven to rotate.
[0015] Further, the other end of the water pipe penetrates through the water pump and is communicated with the inside of the water tank, and one end of the water pipe is located at the rear side of the top end of the screening shell.
[0016] Through the above technical solution, the muck is effectively washed, and the fine sand is separated from the soil.
[0017] Further, the screening shell is a shell structure with a triangular cross-section, and the front end of the screening shell and the top end of the waste water tank are located in the same vertical plane.
[0018] Through the above technical solution, the muddy water in the screening shell is effectively collected.
[0019] The utility model has the following beneficial effects:
[0020] 1. In the utility model, by arranging a screening device, a cam is arranged at the top end of the support frame, and the first motor is used to drive the cam to rotate, so that the screening shell can be vibrated. At the same time, by using the filter screen in the screening shell, fine sand of different specifications is classified and screened, effectively improving the efficiency of the device for recovering fine sand from muck.
[0021] 2. In the utility model, by arranging stirring shafts inside the screening shell and arranging a plurality of stirring fan blades on the side walls of the stirring shafts, during the process of screening the fine sand, the fluidity of the fine sand can be increased by stirring, effectively further improving the screening efficiency of the fine sand.
[0022] 3. In the present utility model, by providing a pretreatment device, a crushing shaft is arranged in the housing, and crushing blades are arranged on the side wall of the crushing shaft, so that the construction waste added into the housing can be preliminarily processed, facilitating the preliminary crushing of the construction waste, avoiding blockage of the device caused by the construction waste, and at the same time adding water to the construction waste, enabling better separation of soil and sand, and improving the purity of the recovered fine sand. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a perspective view of a screening device for recovering fine sand from engineering construction waste proposed by the present utility model;
[0024] Figure 2 is another perspective view of a screening device for recovering fine sand from engineering construction waste proposed by the present utility model;
[0025] Figure 3 is a front view of a screening device for recovering fine sand from engineering construction waste proposed by the present utility model;
[0026] Figure 4 is a top view of a screening device for recovering fine sand from engineering construction waste proposed by the present utility model.
[0027] Legend:
[0028] 1. Screening device; 101. Waste water tank; 102. Filter screen; 103. Screening housing; 104. Deflector; 105. First mounting bracket; 106. Support frame; 107. First motor; 108. First fixing bracket; 109. Spring; 1010. Fixing plate; 1011. Second mounting bracket; 1012. Cam; 1013. Second motor; 1014. Stirring shaft; 1015. Stirring blades; 2. Pretreatment device; 201. Feed inlet; 202. Housing; 203. Water tank; 204. Second fixing bracket; 205. Third motor; 206. Discharge port; 207. Water pipe; 208. Crushing blades; 209. Crushing shaft; 2010. Water pump. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0030] Refer to Figures 1-4, an embodiment provided by the present utility model: a screening device for recovering fine sand in construction waste soil, including a screening device 1 and a pretreatment device 2. The pretreatment device 2 is arranged at the rear side near the top of the screening device 1. The screening device 1 includes a support frame 106. One side in the middle of the top of the support frame 106 is fixedly connected with a first mounting frame 105. A first motor 107 is fixedly connected to the upper position of the inner side wall of the first mounting frame 105. The front end of the support frame 106 is fixedly connected with a waste water tank 101. The other side in the middle of the top of the support frame 106 is fixedly connected with a second mounting frame 1011. A cam 1012 is rotatably connected to the inner side wall of the second mounting frame 1011. The rear side near the top of the support frame 106 is fixedly connected with a first fixing frame 108. The front side near the top of the first fixing frame 108 is hinged with a screening shell 103, and the lower position near the rear end of the screening shell 103 is hinged with the front end of the first fixing frame 108. Three guide plates 104 are fixedly connected to the inner side wall of the screening shell 103 near the rear side. Three filter screens 102 are arranged in a linear array on the inner side wall of the screening shell 103. Three second motors 1013 are arranged in a linear array on the other side of the screening shell 103. Three stirring shafts 1014 are arranged in a linear array on the inner side wall of the screening shell 103. A number of stirring blades 1015 are arranged in a circumferential array on the side walls of the three stirring shafts 1014 respectively. The front side near the bottom of the screening shell 103 is fixedly connected with a fixing plate 1010. Springs 109 are fixedly connected to both sides of the bottom end of the fixing plate 1010. By setting the screening device 1 and arranging the cam 1012 at the top of the support frame 106, the first motor 107 is used to drive the cam 1012 to rotate, so as to vibrate the screening shell 103. At the same time, the filter screen 102 in the screening shell 103 is used to classify and screen fine sand of different specifications, effectively improving the efficiency of the device for recovering fine sand in construction waste soil.
[0031] The pretreatment device 2 includes a second fixing frame 204. The front end of the second fixing frame 204 is fixedly connected with a housing 202. A feed inlet 201 is fixedly connected to the top of the housing 202. A third motor 205 is fixedly connected to the other side of the housing 202. A crushing shaft 209 is rotatably connected to the inner side wall of the housing 202. A number of crushing blades 208 are arranged in a linear array on the side wall of the crushing shaft 209. The rear end of the second fixing frame 204 is fixedly connected with a water tank 203. A water pipe 207 is fixedly connected to the middle of the front end of the water tank 203. A water pump 2010 is arranged on the side wall of the water pipe 207. A discharge port 206 is fixedly connected to the bottom end of the housing 202. The bottom end of the housing 202 is fixedly connected with the top of the first fixing frame 108. By setting the pretreatment device 2, a crushing shaft 209 is arranged in the housing 202, and crushing blades 208 are arranged on the side wall of the crushing shaft 209, so as to preliminarily process the construction waste soil added into the housing 202, facilitate the preliminary crushing of the construction waste soil, avoid the blockage of the device by the construction waste soil, and at the same time add water to the construction waste soil, so that the soil and sand can be better separated, improving the purity of the recovered fine sand.
[0032] The output end of the first motor 107 penetrates through the inner side wall of the first mounting bracket 105 and one side of the second mounting bracket 1011 and is fixedly connected to one side of the cam 1012. One ends of the two springs 109 are respectively fixedly connected to the front side of the top end of the first mounting bracket 105, and the other ends of the two springs 109 are respectively fixedly connected to the bottom end of the fixing plate 1010. The output ends of the three second motors 1013 respectively penetrate through the other side wall of the screening shell 103 and are fixedly connected to the other ends of the three stirring shafts 1014. The mesh diameters of the three filter meshes 102 increase sequentially from front to back, and the three filter meshes 102 are respectively located at the front ends of the three stirring shafts 1014. The output end of the third motor 205 penetrates through the other side wall of the housing 202 and is fixedly connected to the other end of the crushing shaft 209. The discharge port 206 is communicated with the inside of the housing 202, and the discharge port 206 and the three guide plates 104 are located in the same vertical plane. The other end of the water pipe 207 penetrates through the water pump 2010 and is communicated with the inside of the water tank 203, and one end of the water pipe 207 is located at the rear side of the top end of the screening shell 103. The screening shell 103 is a housing structure with a triangular cross section, and the front end of the screening shell 103 and the top end of the waste water tank 101 are located in the same vertical plane. By arranging the stirring shaft 1014 inside the screening shell 103 and arranging a plurality of stirring blades 1015 on the side wall of the stirring shaft 1014, during the screening process of the fine sand, the fluidity of the fine sand can be increased through stirring, effectively further improving the screening efficiency of the fine sand.
[0033] Working principle: By setting the screening device 1 and arranging the cam 1012 at the top end of the support frame 106, the first motor 107 is used to drive the cam 1012 to rotate, so as to vibrate the screening shell 103. At the same time, by using the filter mesh 102 in the screening shell 103, the fine sand of different specifications is classified and screened, effectively improving the efficiency of the device for recovering fine sand from the muck. By arranging the stirring shaft 1014 inside the screening shell 103 and arranging a plurality of stirring blades 1015 on the side wall of the stirring shaft 1014, the first motor 1013 is used to drive the stirring shaft 1014 to rotate. During the screening process of the fine sand, the fluidity of the fine sand can be increased through stirring, effectively further improving the screening efficiency of the fine sand. By setting the pretreatment device 2, arranging the crushing shaft 209 in the housing 202 and arranging the crushing blades 208 on the side wall of the crushing shaft 209, the muck added into the housing 202 can be preliminarily processed, facilitating the preliminary crushing of the muck and avoiding the blockage of the device by the muck. At the same time, water is added to the muck to make the soil and sand separate better, improving the purity of the recovered fine sand.
[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A screening device for fine sand recovery in construction waste soil, comprising a screening device (1) and a pretreatment device (2), wherein the pretreatment device (2) is arranged at the rear side near the top of the screening device (1), and is characterized in that: The screening device (1) includes a support frame (106). One side of the middle part of the top end of the support frame (106) is fixedly connected with a first mounting frame (105). At a position above the inner side wall of the first mounting frame (105), a first motor (107) is fixedly connected. The front end of the support frame (106) is fixedly connected with a waste water tank (101). The other side of the middle part of the top end of the support frame (106) is fixedly connected with a second mounting frame (1011). The inner side wall of the second mounting frame (1011) is rotatably connected with a cam (1012). The top end of the support frame (106) near the rear side is fixedly connected with a first fixing frame (108). The front side of the top end of the first fixing frame (108) is hinged with a screening shell (103), and the lower position near the rear end of the screening shell (103) is hinged with the front end of the first fixing frame (108). Three guide plates (104) are fixedly connected to the inner side wall of the screening shell (103) near the rear side. Three filter screens (102) are linearly arranged on the inner side wall of the screening shell (103). Three second motors (1013) are linearly arranged on the other side of the screening shell (103). Three stirring shafts (1014) are linearly arranged on the inner side wall of the screening shell (103). A number of stirring blades (1015) are respectively arranged in a circumferential array on the side walls of the three stirring shafts (1014). The front side of the bottom end of the screening shell (103) is fixedly connected with a fixing plate (1010). Springs (109) are respectively fixedly connected to both sides of the bottom end of the fixing plate (1010).
2. The screening device for fine sand recovery in construction waste soil according to claim 1, characterized in that: The pretreatment device (2) includes a second fixing frame (204). The front end of the second fixing frame (204) is fixedly connected with a housing (202). The top end of the housing (202) is fixedly connected with a feed inlet (201). The other side of the housing (202) is fixedly connected with a third motor (205). The inner side wall of the housing (202) is rotatably connected with a crushing shaft (209). A number of crushing blades (208) are linearly arranged on the side wall of the crushing shaft (209). The rear end of the second fixing frame (204) is fixedly connected with a water tank (203). A water pipe (207) is fixedly connected to the middle part of the front end of the water tank (203). A water pump (2010) is arranged on the side wall of the water pipe (207). The bottom end of the housing (202) is fixedly connected with a discharge port (206). The bottom end of the housing (202) is fixedly connected with the top end of the first fixing frame (108).
3. The screening device for fine sand recovery in construction waste soil according to claim 1, wherein: The output end of the first motor (107) penetrates through the inner side wall of the first mounting frame (105) and one side of the second mounting frame (1011) and is fixedly connected with one side of the cam (1012). One ends of the two springs (109) are respectively fixedly connected to the front side of the top end of the first mounting frame (105). The other ends of the two springs (109) are respectively fixedly connected to the bottom end of the fixing plate (1010).
4. A screening device for fine sand recovery in construction waste soil according to claim 1, characterized in that: The output ends of the three second motors (1013) respectively penetrate through the other side wall of the screening shell (103) and are fixedly connected to the other ends of the three stirring shafts (1014). The mesh diameters of the three filter meshes (102) increase sequentially from front to back, and the three filter meshes (102) are respectively located at the front ends of the three stirring shafts (1014).
5. The screening device for fine sand recovery in engineering muck according to claim 2, wherein: The output end of the third motor (205) penetrates through the other side wall of the housing (202) and is fixedly connected to the other end of the crushing shaft (209). The discharge port (206) is communicated with the inside of the housing (202), and the discharge port (206) and the three guide plates (104) are located in the same vertical plane.
6. The screening device for fine sand recovery in engineering muck according to claim 2, wherein: The other end of the water pipe (207) penetrates through the water pump (2010) and is communicated with the inside of the water tank (203), and one end of the water pipe (207) is located at the rear side near the top of the screening shell (103).
7. The screening device for fine sand recovery in construction waste soil according to claim 1, characterized in that: The screening shell (103) is a housing structure with a triangular cross-section, and the front end of the screening shell (103) and the top end of the wastewater tank (101) are located in the same vertical plane.