CN220385968U - Double-deck dewatering screen with wash material function - Google Patents
Double-deck dewatering screen with wash material function Download PDFInfo
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- CN220385968U CN220385968U CN202321893772.3U CN202321893772U CN220385968U CN 220385968 U CN220385968 U CN 220385968U CN 202321893772 U CN202321893772 U CN 202321893772U CN 220385968 U CN220385968 U CN 220385968U
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- cleaning
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- 239000000463 material Substances 0.000 title claims abstract description 35
- 239000004576 sand Substances 0.000 claims abstract description 61
- 238000004140 cleaning Methods 0.000 claims abstract description 49
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 10
- 239000004744 fabric Substances 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000000428 dust Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The utility model belongs to the field of dewatering screen equipment, and particularly relates to a double-layer dewatering screen with a material cleaning function, which comprises a frame, a screen box, a screen group, a vibrating mechanism and a cleaning system, wherein the screen box is arranged on the frame and comprises a first feed port for sand aggregates to enter, a first discharge port for discharging the aggregates, a second feed port arranged above the first discharge port for fine sand mixture to enter and a second discharge port for discharging fine sand; the screen group is arranged in the screen box and comprises a first screen and a second screen, and the aperture of the first screen is larger than that of the second screen; the vibration mechanism is arranged on the frame and is connected with and drives the screen group to vibrate; the cleaning system is arranged on the frame and connected with the screen box so as to clean the materials on the first screen and the second screen; the aggregate cleaning and screening machine has the advantages that the overall structure is simple and compact, the occupied area is small, the aggregate cleaning and screening machine and fine sand dewatering functions can be realized by only one piece of equipment, and the problem that the existing dewatering screen is not compact in structure is solved.
Description
Technical Field
The utility model belongs to the field of dewatering screen equipment, and particularly relates to a double-layer dewatering screen with a material cleaning function.
Background
With the rapid development of urban and capital construction projects in China, the market demand for sand aggregates is increasing, the quality demand for sand aggregates is also gradually increasing, and the demand for high-quality water-washed sand (such as machine-made sand) is correspondingly increasing. When it is desired to clean, screen and dewater the sand mix, two separate shakers are typically required. The first vibrating screen is used for cleaning the sand and stone mixed materials and separating aggregate with large particle size from a fine sand screen with small particle size, and the second vibrating screen is used for dehydrating fine sand with small particle size. Such a water wash solution requires two vibrating screen apparatuses while occupying more space and customers in the field want to provide a more compact, economical solution without affecting productivity.
With the development of a more economic solution on the market, a single-layer dewatering screen with a negative-angle screen is used, a baffle plate is arranged on the screen along the central line of the material flow direction, the screen is divided into a left part and a right part, which are not interfered with each other, one side is used for cleaning the sand and stone mixed material, and the other side is used for dewatering fine sand with small particle size. Specifically, the sand and stone mixture enters the hopper, water is added into the hopper to form slurry, the slurry is discharged to one side of the screen with larger aperture, the aggregate with large particle size is cleaned and discharged, and the fine sand with small particle size and sewage enter the water storage tank below through the screen. Then the slurry water in the water storage tank is conveyed to a hydrocyclone by a pump, sludge and a large amount of water are removed in the hydrocyclone, and mortar water with higher concentration is discharged from the bottom of the hydrocyclone to one side of a screen with smaller aperture for further dehydration; and after the fine sand is dehydrated, discharging the fine sand from the screen surface, and returning the sewage to the water storage tank through the screen surface again. The washing scheme can reduce the process of the original two vibrating screens to one, but the width of the whole screening surface is twice as large as the original screening area, the washing pipeline is also integrally elongated, the overall structure is not compact, and the process for washing the sand and gravel aggregate needs to be further improved. .
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a double-layer dewatering screen with a material cleaning function.
The utility model adopts the following technical scheme:
a double-layer dewatering screen with a material cleaning function comprises a frame, a screen box, a screen group, a vibrating mechanism and a cleaning system,
the screening box is arranged on the frame and comprises a first feed inlet for sand and stone aggregates to enter, a first discharge outlet for discharging the aggregates, a second feed inlet for fine sand mixture to enter and a second discharge outlet for discharging fine sand, wherein the second feed inlet is arranged above the first discharge outlet;
the screen group is arranged in the screen box and comprises a first screen arranged between the first feeding port and the first discharging port and a second screen arranged between the second feeding port and the second discharging port, and the aperture of the first screen is larger than that of the second screen;
the vibration mechanism is arranged on the frame and is connected with and drives the screen group to vibrate;
the cleaning system is arranged on the frame and connected with the screen box so as to clean the materials on the first screen and the second screen.
Further, the second screen cloth includes the screen cloth body of slope connection between second feed inlet and second discharge gate and parallel arrangement in the guide plate of screen cloth body below, the discharge end of screen cloth body is higher than the feed end, the front end of guide plate is relative from top to bottom with the front end of first screen cloth.
Further, the cleaning system comprises a waterway support arranged on the frame, a plurality of first cleaning pipelines which are connected with the waterway support and arranged along the material flow direction at intervals, a first nozzle which is arranged in the screen box opposite to the first screen mesh and connected with the first cleaning pipelines, a plurality of second cleaning pipelines which are connected with the waterway support and arranged along the material flow direction at intervals, and a second nozzle which is arranged in the screen box opposite to the guide plate and connected with the second cleaning pipelines.
Further, the second feed inlet is arranged obliquely downwards along the material flow direction.
Further, the screen box is characterized by further comprising damping springs arranged between the frame and the screen box, wherein supports are arranged on two sides of the screen box, the upper ends of the damping springs are connected with the lower ends of the supports, and the lower ends of the damping springs are connected with the frame.
Further, the screen box further comprises two side plates which are oppositely arranged, and the first screen mesh or the second screen mesh is connected between the two side plates.
Further, a cross beam is arranged between the two side plates, and the vibration mechanism is fixed on the cross beam.
Further, the device also comprises a conveying mechanism which is arranged on the frame and the screen box and is used for conveying the fine sand mixture to the second feed inlet.
As can be seen from the above description of the present utility model, compared with the prior art, the present utility model has the following beneficial effects: according to the method, the second screen mesh and the first screen mesh which are vertically opposite are arranged in the screen box, and the first screen mesh is matched with the cleaning system to clean and screen sand aggregates, so that aggregate and fine sand mixture are obtained; dewatering the fine sand mixture by a second screen to obtain fine sand; the aggregate cleaning and screening machine has the advantages that the whole structure is simple and compact, the occupied area is small, the aggregate cleaning and screening machine and the fine sand dewatering function can be realized by only one device, so that two materials of cleaned aggregate and fine sand are obtained, and the treatment cost is effectively reduced.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
in the figure, a 1-frame, a 2-screen box, a 3-first screen, a 4-second screen, a 5-vibration mechanism, a 6-cleaning system, a 7-damping spring, an 8-support, a 21-first feed inlet, a 22-first discharge outlet, a 23-second feed inlet, a 24-second discharge outlet, a 25-side plate, a 26-cross beam, a 41-screen body, a 42-deflector, a 61-waterway bracket, a 62-first cleaning pipeline, a 63-first nozzle, a 64-second cleaning pipeline and a 65-second nozzle.
Detailed Description
The utility model is further described below by means of specific embodiments.
Referring to fig. 1 to 2, a double-deck dewatering screen with a material cleaning function includes a frame 1, a screen box 2, a screen group, a vibrating mechanism 5, a cleaning system 6, and a conveying mechanism.
The screen box 2 is arranged on the frame 1 and comprises a first feed port 21 for allowing sand aggregates to enter, a first discharge port 22 for discharging the aggregates, a second feed port 23 for allowing fine sand mixture to enter and a second discharge port 24 for discharging fine sand, wherein the second feed port 23 is arranged above the first discharge port 21, and is arranged in the screen box 2 in a downward inclined manner along the material flow direction so as to facilitate the entering of the fine sand mixture; further, a damping spring 7 is arranged between the screen box 2 and the frame 1, supports 8 are arranged on two sides of the screen box 2, the upper end of the damping spring 7 is connected with the lower end of the supports 8, and the lower end is connected with the frame 1.
A screen group disposed in the screen box 2 and including a first screen 3 disposed between the first feed port 21 and the first discharge port 22 and a second screen 4 disposed between the second feed port 23 and the second discharge port 24, and the first screen 3 has a larger pore diameter than the second screen 4, specifically, the first screen 3 is for separating sand aggregates including different sized particulate materials such as sand and crushed stone and contaminated with other materials such as silt or dust; during operation, sand aggregates enter the first screen 3 through the first feed inlet 21 and are separated under the action of the first screen 3, wherein aggregates with the particle size exceeding the aperture of the first screen 3 are discharged through the first discharge outlet 22, and fine sand mixture composed of fine sand, water and dust with the particle size smaller than the aperture of the first screen 3 is collected and recycled through the first screen 3; the second screen 4 is used for dewatering the fine sand mixture, wherein fine sand with the particle size exceeding the aperture of the second screen 4 is discharged through the second discharge hole 24, and water with the particle size smaller than the aperture of the second screen 4, dust and other impurities are re-introduced into the first screen 3 through the second screen 4; further, a storage container can be arranged at the bottom of the screen box 2 and used for collecting and recycling fine sand mixtures.
The second screen 4 comprises a screen body 41 obliquely connected between the second feed inlet 23 and the second discharge outlet 24 and a guide plate 42 parallelly arranged below the screen body 41, the discharge end of the screen body 41 is higher than the feed end, the front end of the guide plate 42 is vertically opposite to the front end of the first screen 3, and during operation, fine sand mixture enters the screen body 41 through the second feed inlet 23, fine sand with the particle size exceeding the aperture of the screen body 41 is discharged through the second discharge outlet 24, and impurities such as water and dust with the particle size smaller than the aperture of the screen body 41 penetrate the screen body 41 and enter the guide plate 42 to be discharged into the first screen 3.
The vibrating mechanism 5 is arranged on the screen box 2 and is used for connecting and driving the screen group to vibrate, specifically, the screen box 2 further comprises two opposite side plates 25, the first screen 3 or the second screen 4 is connected between the two opposite side plates 25, a cross beam 26 is arranged between the two side plates 25, the vibrating mechanism 5 is fixed on the cross beam 26 and is used for applying vibration to the first screen 3 and the second screen 4, so that sand aggregate moves on the first screen 3 in a direction approaching the first discharge hole 22 and fine sand mixture moves on the second screen 4 in a direction approaching the second discharge hole 24; further, the vibration mechanism 5 is a common component in dewatering screen equipment, and the specific structure and working principle thereof will not be further described.
The cleaning system 6 is arranged on the frame 1 and connected with the screen box 2 to clean materials on the first screen 3 and the second screen 4, and comprises a waterway bracket 61 arranged on the frame 1, a plurality of first cleaning pipelines 62 which are connected with the waterway bracket 61 and are arranged at intervals along the material flow direction, a first nozzle 63 which is arranged in the screen box 2 opposite to the first screen 3 and connected with the first cleaning pipelines 62, a plurality of second cleaning pipelines 64 which are connected with the waterway bracket 61 and are arranged at intervals along the material flow direction, and a second nozzle 65 which is arranged in the screen box 2 opposite to the guide plate 42 and connected with the second cleaning pipelines 64; specifically, the second cleaning pipeline 64 may be disposed near the second discharge port 24, so that the second nozzle 65 is disposed at the upper end of the deflector 42 near the second discharge port 24, for cleaning the undersize material of the screen body 41 entering on the deflector 42; during operation, the first nozzle 63 can spray and rinse the sand aggregates on the first screen 3 to remove impurities such as silt or dust; the second nozzle 65 washes the silt and dust falling off from the screen body 41 on the guide plate 42, then the sewage mixed with the silt and dust flows downwards to initially wash the sand and aggregate just entering on the first screen 3, recycling of water is achieved, and waste of resources is reduced.
The conveying mechanism is arranged on the frame 1 and connected with the storage container, and is used for conveying the fine sand mixture in the storage container to the second feeding port 23, and the conveying mechanism can be a pump matching pipeline or any other device capable of realizing the conveying function; specifically, the conveying mechanism further comprises a cyclone separator connected with the second feeding hole 23, and the fine sand mixture is treated to separate most of sludge and dust, so that a concentrated fine sand mixture is obtained, and the recovery rate of fine sand is improved.
According to the method, the second screen 4 and the first screen 3 which are vertically opposite are arranged in the screen box, and the first screen 3 is matched with the cleaning system 6 to clean and screen sand aggregates, so that aggregates and fine sand mixtures are obtained; dewatering the fine sand mixture by a second screen 4 to obtain fine sand; the aggregate cleaning and screening machine has the advantages that the whole structure is simple and compact, the occupied area is small, the aggregate cleaning and screening machine and the fine sand dewatering function can be realized by only one device, so that two materials of cleaned aggregate and fine sand are obtained, and the treatment cost is effectively reduced.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, i.e., the utility model is not to be limited to the details of the claims and the description, but rather is to cover all modifications which are within the scope of the utility model.
Claims (8)
1. A double-deck dewatering screen with wash material function, its characterized in that: comprises a frame, a screen box, a screen group, a vibrating mechanism and a cleaning system,
the screening box is arranged on the frame and comprises a first feed inlet for sand and stone aggregates to enter, a first discharge outlet for discharging the aggregates, a second feed inlet for fine sand mixture to enter and a second discharge outlet for discharging fine sand, wherein the second feed inlet is arranged above the first discharge outlet;
the screen group is arranged in the screen box and comprises a first screen arranged between the first feeding port and the first discharging port and a second screen arranged between the second feeding port and the second discharging port, and the aperture of the first screen is larger than that of the second screen;
the vibration mechanism is arranged on the frame and is connected with and drives the screen group to vibrate;
the cleaning system is arranged on the frame and connected with the screen box so as to clean the materials on the first screen and the second screen.
2. A double-deck dewatering screen having a material cleaning function according to claim 1, wherein: the second screen cloth is including the screen cloth body of slope connection between second feed inlet and second discharge gate and parallel arrangement at the guide plate of screen cloth body below, the discharge end of screen cloth body is higher than the feed end, the front end of guide plate is relative from top to bottom with the front end of first screen cloth.
3. A double-deck dewatering screen having a material cleaning function according to claim 2, wherein: the cleaning system comprises a waterway support arranged on the frame, a plurality of first cleaning pipelines which are connected with the waterway support and arranged along the material flow direction at intervals, a first nozzle which is arranged in the screen box opposite to the first screen mesh and connected with the first cleaning pipelines, a plurality of second cleaning pipelines which are connected with the waterway support and arranged along the material flow direction at intervals, and a second nozzle which is arranged in the screen box opposite to the guide plate and connected with the second cleaning pipelines.
4. A double-deck dewatering screen having a material cleaning function according to claim 1, wherein: the second feed inlet is arranged in a downward inclined mode along the material flow direction.
5. A double-deck dewatering screen having a material cleaning function according to claim 1, wherein: the screen box is characterized by further comprising damping springs arranged between the frame and the screen box, wherein supports are arranged on two sides of the screen box, the upper ends of the damping springs are connected with the lower ends of the supports, and the lower ends of the damping springs are connected with the frame.
6. A double-deck dewatering screen having a material cleaning function according to claim 1, wherein: the screen box still includes the both sides board of relative setting, first screen cloth or second screen cloth are connected between the both sides board.
7. A double-deck dewatering screen having a material cleaning function according to claim 6, wherein: a cross beam is arranged between the two side plates, and the vibration mechanism is fixed on the cross beam.
8. A double-deck dewatering screen having a material cleaning function according to claim 1, wherein: the device also comprises a conveying mechanism which is arranged on the frame and the screen box and is used for conveying the fine sand mixture to the second feed inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321893772.3U CN220385968U (en) | 2023-07-19 | 2023-07-19 | Double-deck dewatering screen with wash material function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321893772.3U CN220385968U (en) | 2023-07-19 | 2023-07-19 | Double-deck dewatering screen with wash material function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220385968U true CN220385968U (en) | 2024-01-26 |
Family
ID=89597664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321893772.3U Active CN220385968U (en) | 2023-07-19 | 2023-07-19 | Double-deck dewatering screen with wash material function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220385968U (en) |
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2023
- 2023-07-19 CN CN202321893772.3U patent/CN220385968U/en active Active
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