Sand and stone recovery and separation device
Through the stirring method and negative pressure separation technology of the sand and stone recycling and separation device, the problems of low separation efficiency and serious dust pollution in existing equipment are solved, efficient and continuous sand and stone separation and recycling are achieved, and environmental pollution and maintenance costs are reduced.
Patent Information
- Application Number
- CN202323643823.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-29
Smart Images
Figure CN222287566U_ABST
Abstract
Description
Technical Field
[0001] The technical solution relates to a sand and stone building material processing machine, specifically a sand and stone recovery and separation device. Background Art
[0002] As we all know, in the process of concrete production and processing, it is inevitable to cause material waste. For example, in the processes of mixing, transporting, loading and unloading, and stacking, whether it is manual shoveling, locomotive transport or conveyor belt transport, a large amount of cement, aggregates, and sand will be scattered all over the ground. These scattered materials are mixed with each other. If they cannot be separated, they can only be scrapped, which not only causes a lot of waste but also causes environmental pollution. To solve this problem, technicians in this field have invented a screen-type separation and recovery device. Specifically, screens with different aperture sizes are set, and the mesh holes are arranged longitudinally from large to small to separate stones and powders of different sizes, and finally achieve the effect of reuse. Although the separation quality of this scheme is high, there are the following problems: First, the separation efficiency is too low, and the screen is very easy to be blocked by stones. It is necessary to constantly interrupt the process to clean the screen, and the efficiency is too low; second, the pollution is too serious. The continuous dumping and vibration cause very serious dust pollution, which causes health problems for workers. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a sand and stone recovery and separation device that can initially separate sand and stone by stirring, thereby achieving the effect of material recycling. The device has the characteristics of strong sustainability, high efficiency, high durability and low dust pollution. The specific scheme is as follows.
[0004] A sand and gravel recovery and separation device comprises a frame and a box body, wherein the box body comprises a front plate, a rear plate, a left plate and a right plate, and is characterized in that the front plate is tilted forward to form an inclined plane, a notch is opened in the middle of the rear plate and an arc-shaped inclined plate is arranged at the notch to form a first outlet, a drainage hole is provided at the bottom of the left plate and is connected to a drainage valve, the right side of the box body is arranged obliquely upward to form an inclined box, a U-shaped groove is opened on the right side plate next to the inclined box, a pipe with an arc-shaped cross-section is arranged in the inclined box, the waist of the pipe is fixed in the U-shaped groove, the outer end of the pipe extends to the outside of the inclined box and is fixed with a motor, the output end of the motor is connected to a stirring shaft, the stirring shaft is provided with spiral blades, a second outlet (stone outlet) is provided on the side or bottom of the outer end of the pipe, and a water injection hole is opened on the rear plate on the side of the inclined box.
[0005] A filter screen is arranged in the drainage hole.
[0006] A plurality of stirring blades are fixed at intervals at one end of the spiral blade near the bottom. The stirring blades are vertically arranged on the spiral blade and face the stirring shaft. The shape of the stirring blades is rectangular or trapezoidal.
[0007] The edges of the spiral blades are arranged with detachable reinforcing plates at intervals, and the shapes of the reinforcing plates are rectangular or trapezoidal.
[0008] A filter hole is arranged in the middle of the pipeline.
[0009] This technical solution is used as follows:
[0010] 1. Workers pour the scattered stones and sand into the box, install a water gun on the water injection hole, start the motor while injecting water, and the spiral blade starts to rotate under the drive of the stirring shaft. This solution will use more water to mix the sand and stone into a mixture with a higher dilution degree to keep it more fluid;
[0011] 2. During the mixing process, the rotating spiral blades will create a negative pressure to suck the water, sand and stone mixture at the bottom of the box (such as the attached Figure 4 As the stirring blade rotates, the liquid mixture rises synchronously; when the liquid mixture is lifted to the first outlet, the lighter water-sand mixture will be suspended to the top layer and slowly discharged from the first outlet (as shown in the attached figure). Figure 4 The water-sand mixture flows out of the first outlet, and the lighter stones will settle to the bottom again and re-enter the spiral blades to be lifted;
[0012] 3. Usually the equipment is in a normally open state. When maintenance is necessary, the water can be discharged through the drain valve before cleaning and maintenance. The drain valve can also control the liquid level of the liquid mixture by continuous drainage. The discharged water is collected through pipes for reuse.
[0013] Further explanation of this technical solution:
[0014] 1. This solution requires water injection to keep water, sand and stone in a diluted state and have a certain fluidity before separation. The water injection port is set on one side of the inclined box to further increase the dilution degree at that place, making the separated stone cleaner and ensuring that the water-sand mixture is more fluid and can flow out from the first outlet, and also ensuring that the lighter stone is precipitated in time to form a cycle (such as attached Figure 4 shown);
[0015] If the dilution is too low, resulting in poor fluidity or the motor rotates too fast, the water-sand mixture will be excessively raised. At this time, the spare filter holes in the middle of the pipe will work to help discharge the water-sand mixture to prevent excessive slurry from entering the second outlet.
[0016] 2. In this scheme, due to the provision of the inclined box and the inclined surface, the raw materials can be well gathered at the bottom of the box, that is, near the bottom of the spiral blade. At the same time, a plurality of stirring blades are fixed at the bottom of the spiral blade, which can further enhance the stirring force and the negative pressure suction, so that the mixture rises along the pipeline;
[0017] 3. Since sand and stone have extremely strong abrasive characteristics and cause great damage to the spiral blades, a removable reinforcement plate is set at the edge of the spiral blades. The reinforcement plate protects the spiral blades and extends the service life of the spiral blades by replacing the damaged reinforcement plate, thereby reducing the use and maintenance costs;
[0018] 4. This device performs primary separation: (1) The water-sand mixture separated by the first outlet can be further subdivided through sedimentation; (2) The stones separated by the second outlet are still of different sizes and can be finely separated again. Since the sand and powder have been separated, the dust will be greatly reduced during fine separation, ensuring human health. Of course, the separated stones can also be crushed into the same specifications for use, depending on actual needs. Regardless of the choice, compared with the existing technology, the dust pollution of the entire process is greatly reduced, and the workers are highly acceptable;
[0019] 5. Compared with the existing technology, this equipment can continuously add recycled materials without interruption, continuously separate stone and sand, and the separation efficiency is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;
[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;
[0022] Figure 3 It is a partial enlarged schematic diagram of the utility model;
[0023] Figure 4 It is a schematic diagram of the mixture flow of the utility model.
[0024] Description of reference numerals:
[0025] 1 drain valve, 2 frame, 3 first outlet (sand outlet), 4 box, 5 stirring blade, 6 stirring shaft, 7 reinforcement plate, 8 inclined box, 9 side plate, 10 U-shaped groove, 11 motor, 12 spiral blade, 13 second outlet (stone outlet), 14 water injection hole, 15 inclined surface, 16 pipeline. DETAILED DESCRIPTION
[0026] See attached Figure 1-4The sand and gravel recovery and separation device comprises a frame 2 and a box body 4. The box body comprises a front plate, a rear plate, a left plate, and a right plate 9. The front plate is characterized in that the front plate is tilted forward to form an inclined surface 15, a notch is opened in the middle of the rear plate and an arc-shaped inclined plate is arranged at the notch to form a first outlet 3, a drainage hole is arranged at the bottom of the left plate and is connected to a drainage valve 1, the right side of the box body is arranged obliquely upward to form an inclined box, a U-shaped groove 10 is opened on the right side plate next to the inclined box, a pipe 16 with a semicircular arc cross-section is arranged in the inclined box 8, the waist of the pipe is fixed in the U-shaped groove, the outer end of the pipe extends to the outside of the inclined box and is fixed with a motor 11, the output end of the motor is connected to a stirring shaft, the stirring shaft is provided with a spiral blade 12, the side or bottom of the outer end of the pipe is provided with a second outlet 13, and a water injection hole 14 is opened on the rear plate on the side of the inclined box.
[0027] A filter screen is arranged in the drainage hole.
[0028] A plurality of stirring blades 5 are fixed at intervals at one end of the bottom of the spiral blade. The stirring blades are vertically arranged on the spiral blade and face the stirring shaft 6. The shape of the stirring blades is rectangular or trapezoidal.
[0029] The edges of the spiral blades are arranged with detachable reinforcing plates 7 at intervals, and the shapes of the reinforcing plates are rectangular or trapezoidal.
[0030] A filter hole is arranged in the middle of the pipeline.
Claims
1. A sand and stone recovery and separation device, comprising a frame and a box body, wherein the box body comprises a front plate, a rear plate, a left plate, and a right plate, and is characterized in that: The front plate is inclined forward to form an inclined plane, a notch is opened in the middle of the rear plate and an arc-shaped inclined plate is provided at the notch to form a first outlet, a drainage hole is provided at the bottom of the left plate and is connected to a drainage valve, the right side of the box body is arranged obliquely upward to form an inclined box, a U-shaped groove is opened on the right side plate next to the inclined box, a pipe with an arc-shaped cross-section is arranged in the inclined box, the waist of the pipe is fixed in the U-shaped groove, the outer end of the pipe extends to the outside of the inclined box and is fixed with a motor, the output end of the motor is connected to a stirring shaft, the stirring shaft is provided with spiral blades, a second outlet is provided on the side or bottom of the outer end of the pipe, and a water injection hole is opened on the rear plate on the side of the inclined box.
2. The sand recovery and separation device according to claim 1 is characterized in that: A filter screen is arranged in the drainage hole.
3. The sand recovery and separation device according to claim 1 is characterized in that: A plurality of stirring blades are fixed at intervals at one end of the spiral blade near the bottom. The stirring blades are vertically arranged on the spiral blade and face the stirring shaft. The shape of the stirring blades is rectangular or trapezoidal.
4. The sand recovery and separation device according to claim 1 is characterized in that: The edges of the spiral blades are arranged with detachable reinforcing plates at intervals, and the shapes of the reinforcing plates are rectangular or trapezoidal.
5. The sand recovery and separation device according to claim 1 is characterized in that: A filter hole is arranged in the middle of the pipeline.