CN214060027U - Stone material waste water's cyclic utilization system - Google Patents
Stone material waste water's cyclic utilization system Download PDFInfo
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- CN214060027U CN214060027U CN202022606221.7U CN202022606221U CN214060027U CN 214060027 U CN214060027 U CN 214060027U CN 202022606221 U CN202022606221 U CN 202022606221U CN 214060027 U CN214060027 U CN 214060027U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 143
- 239000004575 stone Substances 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 title claims abstract description 15
- 125000004122 cyclic group Chemical group 0.000 title abstract description 6
- 238000004062 sedimentation Methods 0.000 claims abstract description 116
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 238000011282 treatment Methods 0.000 claims abstract description 31
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 22
- 239000013049 sediment Substances 0.000 claims abstract description 18
- 239000000706 filtrate Substances 0.000 claims abstract description 13
- 239000010802 sludge Substances 0.000 claims abstract description 10
- 238000004064 recycling Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 2
- 229920002401 polyacrylamide Polymers 0.000 description 17
- 238000012545 processing Methods 0.000 description 11
- 238000000926 separation method Methods 0.000 description 5
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- 239000007787 solid Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000008239 natural water Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 241001629511 Litchi Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
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- 239000003974 emollient agent Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
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Abstract
The utility model discloses a cyclic utilization system of stone material waste water belongs to stone material waste water treatment technical field. The system comprises a large-scale cutting wastewater treatment workshop section, other wastewater treatment workshop sections and a sediment treatment workshop section; the other wastewater treatment sections comprise a first wastewater collection ditch, a multi-stage sedimentation structure, a first clean water tank, a first PAM automatic adding structure and a first PAC automatic adding structure; the large-scale cutting wastewater treatment section comprises a second wastewater collection ditch, a vibrating screen, a sedimentation tank, a second vertical sedimentation tank, a second clean water tank, a second PAM automatic adding structure and a second PAC automatic adding structure; the sediment treatment section comprises a filter press, a sludge pool and a filtrate collecting tank. The process divides the stone wastewater into the large-size cutting wastewater and other stone wastewater except the large-size cutting wastewater according to the characteristics of the wastewater, and adopts different treatment modes respectively so as to achieve the advantages of reducing the treatment cost, reducing the lubricant loss and improving the treatment speed of the large-size cutting wastewater.
Description
Technical Field
The utility model belongs to the technical field of stone material waste water treatment, in particular to cyclic utilization system of stone material waste water.
Background
With the development and development of stone processing industry, waste water generated by stone processing is increased, and the waste water generated by traditional stone processing is not treated and directly discharged to pollute natural water, so that fish, shrimp, algae and microorganisms in the natural water are dead, food chains are damaged, and ecological imbalance is caused. The traditional method not only brings great influence to the living environment of people, but also can cause serious pollution and damage and serious waste of resources.
With the increasing awareness of environmental protection and the requirements of environmental laws and regulations, the environmental protection is becoming a consensus, and the wastewater generated by stone processing must be treated before being discharged. The applicant finds that the large-scale cutting wastewater is very different from other stone wastewater except the large-scale cutting wastewater in the treatment process of the stone wastewater, and the difference is as follows:
(1) the yield of the large-cut wastewater is very large;
(2) the large-particle stone in the large-cut wastewater has high content;
(3) the solid content (calculated as suspended matters) in the large-cut wastewater is lower than that of other wastewater;
(4) the large cutting waste water contains a lubricant;
(5) the requirement for recycling the waste water from the large scale cutting is relatively lower.
If the large-size cutting wastewater and other stone wastewater except the large-size cutting wastewater are treated in a unified way, not only the treatment cost is higher, but also the treatment effect cannot meet the respective recycling requirements.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the embodiment of the utility model provides a cyclic utilization system of stone material waste water divide into the stone material waste water greatly and cut waste water and other stone material waste water except that cutting waste water greatly to the characteristics of waste water, adopts different treatment to reach advantages such as reduction treatment cost, reduction lubricant loss and promotion greatly cut the processing speed of waste water respectively. The technical scheme is as follows:
the embodiment of the utility model provides a recycling system of stone wastewater, which comprises a large-scale cutting wastewater treatment workshop section, other wastewater treatment workshop sections and a sediment treatment workshop section;
the other wastewater treatment sections comprise a first wastewater collection ditch, a multi-stage sedimentation structure, a first clean water tank 2, a first PAM automatic adding structure and a first PAC automatic adding structure; the multistage sedimentation structure comprises a plurality of first vertical sedimentation tanks 1 with gradually-reduced heights, wherein the first PAC automatic adding structure is connected with the input end of a first wastewater collecting ditch through a pipeline, the first vertical sedimentation tanks 1 are all connected with a first PAM automatic adding structure through pipelines, the upper end of a central guide pipe 15 of the first-stage first vertical sedimentation tank 1 is connected with the output end of the first wastewater collecting ditch through a pipeline, an overflow weir 14 of the first vertical sedimentation tank 1 at the upper stage is connected with the upper end of a central guide pipe 15 of the first vertical sedimentation tank 1 at the lower stage through an inclined pipe, and the overflow weir 14 of the first vertical sedimentation tank 1 at the last stage is higher than a clean water outlet of the first clean water tank 2 and is connected with the lower part of the middle part of the first clean water tank 2 through a pipeline; the first waste water collecting channel is used for collecting other stone waste water except the large cutting waste water, and a clear water outlet of the first clear water tank 2 is connected with other water using equipment except the large cutting machine through a pipeline.
The large-scale cutting wastewater treatment section comprises a second wastewater collection ditch, a vibrating screen, a sedimentation tank, a second vertical sedimentation tank 3, a second clean water tank 4, a second PAM automatic adding structure and a second PAC automatic adding structure; the output end of the second wastewater collection ditch is connected with the feed inlet of the vibrating screen, a water receiving tank is arranged right below the vibrating screen and used for receiving fine sand and water output from the vibrating screen, the water receiving tank is connected with a sedimentation tank through a groove, the second PAC automatic adding structure is connected with the input end of the second wastewater collection ditch through a pipeline, the sedimentation tank is connected with the second PAM automatic adding structure through a pipeline, the sedimentation tank is connected with the upper end of a central draft tube 15 of the second vertical sedimentation tank 3 through a pipeline, an overflow weir 14 at the top of the second vertical sedimentation tank 3 is higher than the clear water outlet of the second clear water tank 4 and is connected with the middle part or the lower part of the second clear water tank 4 through a pipeline; the second waste water collecting channel is used for collecting large-size cutting waste water, and a clear water outlet of the second clear water tank 4 is connected with the large-size cutting machine through a pipeline.
The sediment treatment section comprises a filter press, a sludge pool and a filtrate collecting tank, and sediment outlets of the first vertical flow type sedimentation tank 1, the first clear water tank 2, the second vertical flow type sedimentation tank 3 and the second clear water tank 4 are connected with the sludge pool through pipelines; the sludge pond is connected with a feed inlet of a filter press through a pipeline with a pressure filter pump, a filtrate outlet of the filter press is connected with a filtrate collecting tank through a pipeline, and the filtrate collecting tank is connected with a second clean water tank 4 through a pipeline.
The volume of the second vertical sedimentation tank 3 is 10-20 times of the volume of the first vertical sedimentation tank 1.
The first vertical sedimentation tank 1 and the second vertical sedimentation tank 3 in the embodiment of the present invention each include a vertically arranged and cylindrical barrel 11, a plurality of first legs 12 for supporting the barrel 11, a falling object outlet at the bottom of the barrel 11, an overflow weir 14 at the outer edge of the top of the barrel 11, and a central flow guide pipe 15 arranged coaxially with the barrel 11 in the barrel 11, wherein the bottom of the barrel 11 is a conical bottom; the upper end of the central draft tube 15 is higher than the overflow weir 14, and the lower end thereof reaches the lower part of the cylinder 11 and is located above the conical bottom.
Preferably, the top end of the central draft tube 15 in the embodiment of the present invention is coaxially provided with a feeding chute 16; the feed chute 16 is a circular chute and is positioned above the liquid level in the cylinder 11, a feed pipe is arranged on the feed chute, and the diameter of the feed pipe is 1.5-3.0 times of that of the central draft tube 15; the inlet pipe is tangent with the lateral wall at the bottom of the feed chute 16, and the upper end of the central draft tube 15 upwards extends into the feed chute 16 and is higher than the inlet pipe.
Further, the embodiment of the utility model provides an in the second vertical sedimentation tank 3 be equipped with many inlet pipes on the feed chute 16, many inlet pipes set up side by side from top to bottom and respectively are connected with the sedimentation tank through a pipeline.
Specifically, the diameter of the first vertical sedimentation tank 1 in the embodiment of the utility model is 3-5m, and the height thereof is 10-20 m; the diameter of the first clean water tank 2 is 3-5m, and the height thereof is 9-18 m; the diameter of the second vertical sedimentation tank 3 is 10-15m, and the height thereof is 10-18 m; the diameter of the second clean water tank 4 is 5-8m, and the height of the second clean water tank is 8-15 m; the distance between the upper end of the central guide pipe 15 and the bottom of the feed chute 16 is 20-50 cm.
Wherein, the embodiment of the utility model provides an in first clean water jar 2 and second clean water jar 4 all include vertical setting and be cylindric jar body 21, be used for supporting jar body 21 many second landing legs 22, jar body 21 upper portion clear water export, downwardly extending jar body 21 middle part or the feed liquor pipe 24 of lower part and the deposit export of jar body 21 bottom, the bottom of jar body 21 is conical, the upper end of feed liquor pipe 24 is passed through the pipe chute and is connected with corresponding overflow weir 14.
Preferably, the vibrating screen in the embodiment of the present invention is arranged obliquely, and a cyclone separator is arranged right above the upper part of the vibrating screen; the cyclone separator is vertically arranged, a feed inlet of the cyclone separator is connected with the output end of the second wastewater collecting channel through a pipeline, a discharge outlet at the bottom of the cyclone separator is output to the vibrating screen, and a water outlet at the upper part of the cyclone separator is connected with the sedimentation tank through a pipeline; the aperture of the screen mesh of the vibrating screen is 1.0-3.0mm, and the water receiving tank is higher than the sedimentation tank.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the embodiment of the utility model provides a cyclic utilization system of stone material waste water divide into the stone material waste water greatly and cut waste water and other stone material waste water except that greatly cutting waste water to the characteristics of waste water, adopts different treatment to reach advantages such as reduce treatment cost, reduce the emollient loss and promote the processing speed that greatly cuts waste water respectively. The solid content of other waste water can be reduced to below 2 percent, and the treatment capacity of the large-cut waste water can reach 6500m310h, the wastewater treatment can be reduced to 0.8 yuan/m36000 yuan can be saved every day, and more than 180 million can be saved in one year (330 days).
Drawings
Fig. 1 is a schematic block diagram of a stone waste water recycling system provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the combination of the second vertical sedimentation tank and the second clean water tank.
In the figure: 1 a first vertical sedimentation tank, 2 a first clean water tank, 3 a second vertical sedimentation tank and 4 a second clean water tank;
11 cylinder, 12 first support leg, 14 overflow weir, 15 central draft tube and 16 feed chute;
21 tank, 22 second leg and 24 liquid inlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1 and 2, an embodiment of the present invention provides a recycling method of stone waste water, which includes:
and (3) treatment of other wastewater: collecting other waste water except the large-size cutting waste water and adding PAC (polyaluminium chloride), and then sending the waste water to a multi-stage sedimentation structure through a first waste water collection ditch, wherein the multi-stage sedimentation structure is formed by a plurality of first vertical flow sedimentation tanks 1, the heights (particularly the heights of tops) of the first vertical flow sedimentation tanks 1 are reduced step by step, the waste water of the first waste water collection ditch is sent to the upper end of a central guide pipe 15 of the first vertical flow sedimentation tank 1, clear liquid output by an overflow weir 14 of the first vertical flow sedimentation tank 1 at the upper end is sent to the upper end of the central guide pipe 15 of the first vertical flow sedimentation tank 1 at the lower end, the overflow weir 14 of the first vertical flow sedimentation tank 1 at the last end is output to the first clear water tank 1 for sedimentation and storage, PAM (polyacrylamide) is added into the first vertical flow sedimentation tank 1, and the clear liquid in the first clear water tank 1 is sent to other water utilization equipment except the. Wherein, because other waste water is usually intermittent water and the water utilization equipment is not fixed (the required amount of water for various surface treatments is inconsistent, such as litchi surface, smooth surface, etc.), the treated waste water has a longer retention time in the first clean water tank 1, and then the treated waste water has the functions of storage and sedimentation.
Treatment of large-size cutting wastewater: collecting the large cutting wastewater, adding PAC (polyaluminium chloride), conveying the large cutting wastewater to a vibrating screen through a second wastewater collection ditch, screening out large-particle stones, conveying the large-particle stones to a sedimentation tank for sedimentation, adding PAM (polyacrylamide) into the sedimentation tank, conveying the large cutting wastewater to a second vertical flow type sedimentation tank 3 for solid-liquid separation after sedimentation, conveying the supernatant to a second clear water tank 4 for storage, conveying the clear water in the second clear water tank 4 to a large cutting machine, and containing a lubricant in the large cutting wastewater. Wherein, the retention time of the large-size cut waste water in the second clean water tank 4 is short (the large-size cut processing basically consumes water continuously, and the using amount is relatively fixed and large), but because the solid content in the treated waste water is high, a small amount of sediment is usually settled. The second clean water tank 4 is mainly also for storage.
And (3) treatment of the sediment: sediments output from the bottoms of the first vertical sedimentation tank 1, the first clean water tank 2, the second vertical sedimentation tank 3 and the second clean water tank 4 are all output to a filter press for filter pressing, and filter liquor obtained by filter pressing is sent to the second clean water tank 4 for reuse. The filter residue can be reused as building raw material, such as brick making, so as to reduce the cost of wastewater treatment.
Wherein, the utility model discloses a stone material waste water is the stone material waste water of granite processing for produce various panel, curb stone etc. other waste water are usually including side cut waste water, profile modeling waste water, the waste water that punches, sculpture waste water, surface treatment waste water (like the polishing), dust disposal waste water and chamfer waste water etc..
Wherein, when other wastewater is treated and the cut wastewater is treated, the consumption of PAC is 1/(4 x 10) of the weight of the wastewater to be treated4-7*104) The dosage of PAM is 1/(15 x 10) of the weight of the wastewater to be treated5-25*105). PAC is added firstly to improve the reaction time and the treatment effect. In the large-cut waste water, common lubricant (preferably vegetable extracted grease) is adopted, and the content can be 0.2-0.7 wt%.
Furthermore, the wastewater in the second wastewater collection channel in the embodiment of the present invention is first sent to the cyclone separator for solid-liquid separation; water output from the upper part of the cyclone separator is sent to a sedimentation tank, and slurry output from the lower part of the cyclone separator is sent to a vibrating screen; the aperture of the screen mesh of the vibrating screen is 1.0-3.0 mm.
The indexes of the wastewater treated by the method are shown in tables 1 and 2, and two groups of multi-stage (specifically three-stage) sedimentation structures are combined (connected in parallel) with the first clean water tank:
TABLE 1
TABLE 2
| Waste water of cutting greatly | Other waste water | |
| Throughput (m)3/10h) | 6500 | 600 |
| Cost of treatment (Yuan/m)3） | 0.7-0.85 | 0.75-1.0 |
| Amount of lubricant (kg/stone processing amount m)3） | 0.75-0.77 | — |
In the prior art, multi-stage sedimentation (usually a sedimentation tank) is adopted for centralized treatment, and the treatment speed is usually not higher than the water using speed, especially for large-scale water use; the treatment cost of the prior art is usually 1.0-1.2 yuan/m3In the prior art, the dosage of the lubricant is usually 0.9-1.0 kg/stone processing amount m3(ii) a In the prior art, the solid content of the treated wastewater is usually 3.0-5.5% (usually 4-5%), which is not beneficial to some water-using equipment, such as polishing, dust removal and the like. As can be seen from tables 1 and 2, the method of the utility model divides the waste water into the large-size waste water and other waste water except the large-size waste water according to the characteristics of different waste water, the treatment speed of the large-size waste water is high, the water consumption of other waste water is small, the other waste water can be used intermittently, and the treatment time can be prolonged; at the same time, the amount of lubricant used can be reduced.
Example 2
Referring to fig. 1-2, the embodiment of the present invention further provides a recycling system for stone wastewater, which includes a large-scale wastewater treatment section, other wastewater treatment sections, and a sediment treatment section.
Other wastewater treatment sections include a first wastewater collection trench, a multistage sedimentation structure, a first clean water tank 2, a first PAM automatic addition structure (for adding PAM, which is a conventional structure), a first PAC automatic addition structure (for adding PAC, which is a conventional structure), and the like. The multistage sedimentation structure comprises a plurality of (specifically 2-5) first vertical sedimentation tanks 1 with the height (specifically, the height of the top) gradually reduced, a first PAC automatic adding structure (one can be arranged in each first vertical sedimentation tank 1) is connected with the input end of a first wastewater collection ditch through a pipeline (with or without a delivery pump) for adding PAC, the first vertical sedimentation tanks 1 are all connected with a first PAM automatic adding structure (preferably, a feeding tank 16 is added, PAM and wastewater are uniformly mixed through rotational flow), the upper ends (feeding pipes) of central flow guide pipes 15 of the first-stage first vertical sedimentation tank 1 are connected with the output end of the first wastewater collection ditch through pipelines (with the delivery pump), overflow weirs 14 of the upper-stage first vertical sedimentation tank 1 are connected with the upper ends (feeding pipes) of central flow guide pipes 15 of the next-stage first vertical sedimentation tank 1 through inclined pipes (obliquely downward), the overflow weir 14 of the last stage first vertical sedimentation tank 1 is higher than the clear water outlet of the first clear water tank 2 and is connected with the middle part or the lower part (sediment at the bottom is required not to be disturbed) of the first clear water tank 2 through a pipeline (preferably an inclined pipe to reduce the use of a pump). The first waste water collecting channel is used for collecting other stone waste water except the large cutting waste water, and a clear water outlet of the first clear water tank 2 is connected with other water using equipment except the large cutting machine through a pipeline (with a conveying pump).
The large-scale wastewater treatment section comprises a second wastewater collection ditch, a vibrating screen, a sedimentation tank, a second vertical sedimentation tank 3, a second clean water tank 4, a second PAM automatic adding structure (for adding PAM and being a conventional structure), a second PAC automatic adding structure (for adding PAC and being a conventional structure) and the like. The output of second waste water collection ditch passes through the pipeline (takes the delivery pump) to be connected with the feed inlet of shale shaker, be equipped with the water receiving tank under the shale shaker and be used for receiving fine sand and the water from the shale shaker output, the water receiving tank (higher than the sedimentation tank) is connected with the sedimentation tank through the slot, second PAC adds the structure automatically and is connected with the input of second waste water collection ditch through the pipeline (takes or does not take the delivery pump) and is used for adding the PAC, the sedimentation tank adds the structural connection with second PAM automatically through the pipeline (takes or does not take the delivery pump) and is used for adding PAM. The sedimentation tank is connected with the upper end (feed pipe) of the central draft tube 15 of the second vertical sedimentation tank 3 through a pipeline, and the overflow weir 14 at the top of the second vertical sedimentation tank 3 is higher than the clear water outlet of the second clear water tank 4 and is connected with the middle part or the lower part (sediment at the bottom cannot be disturbed when the pump is used) of the second clear water tank 4 through a pipeline (preferably an inclined pipe to reduce the use of the pump). The second waste water collecting channel is used for collecting the large cutting waste water, and a clear water outlet of the second clear water tank 4 is connected with the large cutting machine through a pipeline.
This patent adds PAC at once after through adopting the collection waste water, can increase PAC's active time, and waste water can partially subside and accelerate the reaction rate with PAC at the in-process that waste water collection ditch flows, and waste water collection ditch can regularly desilt.
The sediment treatment section comprises a filter press, a sludge pool, a filtrate collecting tank and the like, and sediment outlets of the first vertical flow type sedimentation tank 1, the first clear water tank 2, the second vertical flow type sedimentation tank 3 and the second clear water tank 4 are connected with the sludge pool (which can be lower than the vertical flow type sedimentation tank and the clear water tank and can be internally provided with stirring) through pipelines (which are periodically discharged and provided with or without a pump). The sludge pond is connected with the feed inlet of the filter press through a pipeline with a pressure filter pump, the filtrate outlet of the filter press is connected with a filtrate collecting tank (which can be lower than the filter press) through a pipeline (with or without a pump), and the filtrate collecting tank is connected with a second clean water tank 4 through a pipeline (with a delivery pump).
The volume of the second vertical flow type sedimentation tank 3 is 10-20 times of the volume of the first vertical flow type sedimentation tank 1, the volume of the second vertical flow type sedimentation tank 3 is much larger than that of the first vertical flow type sedimentation tank 1, the treatment time of other waste water treatment sections is very long, and the treatment time is usually more than 5 times of that of a large-scale waste water treatment section.
Wherein, referring to fig. 2, the first vertical sedimentation tank 1 and the second vertical sedimentation tank 3 in the embodiment of the present invention all include vertical setting and are cylindric barrel 11, many first support legs 12 (locate barrel 11 lower part, many first support legs 12 evenly distributed and all vertical setting) for supporting barrel 11, the thing export that falls of barrel 11 bottom, overflow weir 14 (similar with conventional structure, the supernatant overflows to overflow weir 14 from the top of barrel 11 in, the annular structure with the coaxial setting of barrel 11) and the barrel 11 in and with the central honeycomb duct 15 (specifically be the pipe) of the coaxial setting of barrel 11 etc.. Wherein, the bottom of the cylinder body 11 is a conical bottom; the upper end of the central draft tube 15 is higher than the overflow weir 14, and the lower end thereof is located above the conical bottom part of the cylinder 11 (which is required not to disturb the sediment accumulated at the conical bottom part to ensure the separation effect).
Preferably, referring to fig. 2, the top end of the central draft tube 15 in the embodiment of the present invention is coaxially provided with a feeding chute 16. Wherein, the feed chute 16 is a circular chute which is positioned above the liquid level in the cylinder 11 and is provided with a feed pipe, and the diameter of the feed pipe is 1.5 to 3.0 times of that of the central draft tube 15. The feed pipe is tangent to the side wall of the bottom of the feed chute 16, so that the entering liquid circularly moves around the annular groove between the feed chute 16 and the central guide pipe 15 to form a vortex, and the upper end of the central guide pipe 15 upwards extends into the feed chute 16 and is higher than the feed pipe.
Further, the embodiment of the present invention provides an embodiment of the present invention, wherein a plurality of feeding pipes are arranged on the feeding chute 16 of the second vertical sedimentation tank 3, and the plurality of feeding pipes are arranged side by side from top to bottom and are respectively connected to the sedimentation tank through a pipeline (with a conveying pump). The first vertical sedimentation tank 1 is only provided with one feeding pipe.
Specifically, the diameter of the first vertical sedimentation tank 1 in the embodiment of the utility model is 3-5m, and the height thereof is 10-20 m; the diameter of the first clean water tank 2 is 3-5m, and the height thereof is 9-18 m; the diameter of the second vertical sedimentation tank 3 is 10-15m, and the height thereof is 10-18 m; the diameter of the second clean water tank 4 is 5-8m, and the height thereof is 8-15 m; the distance between the upper end of the central draft tube 15 and the bottom of the feed chute 16 is 20-50 cm.
Wherein, see fig. 2, first clean water jar 2 and second clean water jar 4 in the embodiment of the utility model all include vertical setting and be cylindric jar body 21, be used for supporting jar many second landing legs 22 of body 21 (locating jar body 21 lower part, many second landing legs 22 evenly distributed and equal vertical setting), the clear water export on jar body 21 upper portion, stretch into jar body 21 middle part or the deposit of lower part 24 downwards (the requirement can not disturb the deposit of bottom gathering in order to guarantee the separation effect, specifically be vertical pipe) and the deposit export of jar body 21 bottom etc., the bottom of jar body 21 is conical, the upper end of feed liquor pipe 24 is passed through the pipe chute and is connected with corresponding overflow weir 14.
Preferably, the vibrating screen in the embodiment of the present invention is arranged obliquely, and a cyclone separator is arranged right above the upper part of the vibrating screen for solid-liquid separation before the vibrating screen is separated to increase the processing speed; the cyclone separator is vertically arranged, a feed inlet of the cyclone separator is connected with the output end of the second wastewater collecting channel through a pipeline (with a delivery pump), a discharge outlet at the bottom of the cyclone separator is output to the vibrating screen, and a water outlet at the upper part of the cyclone separator is connected with the sedimentation tank through a pipeline; the aperture of the screen mesh of the vibrating screen is 1.0-3.0mm, and the water receiving tank is higher than the sedimentation tank.
Wherein, "first" and "second" in the embodiment of the present invention only play a distinguishing role, and have no other special meaning. And pumps, valves and/or flow valves and the like are arranged on pipelines among the structures according to requirements.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. A stone wastewater recycling system is characterized by comprising a large-scale cutting wastewater treatment section, other wastewater treatment sections and a sediment treatment section;
the other wastewater treatment sections comprise a first wastewater collection groove, a multi-stage sedimentation structure, a first clean water tank (2), a first PAM automatic adding structure and a first PAC automatic adding structure; the multistage sedimentation structure comprises a plurality of first vertical sedimentation tanks (1) with gradually-reduced heights, wherein the first PAC automatic adding structure is connected with the input end of a first wastewater collecting channel through a pipeline, the first vertical sedimentation tanks (1) are all connected with a first PAM automatic adding structure through pipelines, the upper ends of central guide pipes (15) of the first-stage first vertical sedimentation tanks (1) are connected with the output end of the first wastewater collecting channel through pipelines, overflow weirs (14) of the first vertical sedimentation tanks (1) at the upper stage are connected with the upper ends of the central guide pipes (15) of the first vertical sedimentation tanks (1) at the lower stage through inclined pipes, and the overflow weir (14) of the first vertical sedimentation tank (1) at the last stage is higher than a clear water outlet of a first clear water tank (2) and is connected with the middle part or the lower part of the first clear water tank (2) through a pipeline; the first waste water collecting channel is used for collecting other stone waste water except the large cutting waste water, and a clear water outlet of the first clear water tank (2) is connected with other water using equipment except the large cutting machine through a pipeline;
the large-scale cutting wastewater treatment section comprises a second wastewater collection ditch, a vibrating screen, a sedimentation tank, a second vertical sedimentation tank (3), a second clear water tank (4), a second PAM automatic adding structure and a second PAC automatic adding structure; the output end of the second wastewater collection ditch is connected with the feed inlet of the vibrating screen, a water receiving tank is arranged right below the vibrating screen and used for receiving fine sand and water output from the vibrating screen, the water receiving tank is connected with a sedimentation tank through a groove, the second PAC automatic adding structure is connected with the input end of the second wastewater collection ditch through a pipeline, the sedimentation tank is connected with the second PAM automatic adding structure through a pipeline, the sedimentation tank is connected with the upper end of a central flow guide pipe (15) of the second vertical flow sedimentation tank (3) through a pipeline, an overflow weir (14) at the top of the second vertical flow sedimentation tank (3) is higher than a clean water outlet of the second clean water tank (4) and is connected with the middle part or the lower part of the second clean water tank (4) through a pipeline; the second wastewater collecting channel is used for collecting large-cutting wastewater, and a clear water outlet of the second clear water tank (4) is connected with the large-cutting machine through a pipeline;
the sediment treatment section comprises a filter press, a sludge pool and a filtrate collecting tank, and sediment outlets of the first vertical flow type sedimentation tank (1), the first clear water tank (2), the second vertical flow type sedimentation tank (3) and the second clear water tank (4) are connected with the sludge pool through pipelines; the sludge pool is connected with a feed inlet of a filter press through a pipeline with a pressure filter pump, a filtrate outlet of the filter press is connected with a filtrate collecting tank through a pipeline, and the filtrate collecting tank is connected with a second clean water tank (4) through a pipeline;
the volume of the second vertical sedimentation tank (3) is 10-20 times of the volume of the first vertical sedimentation tank (1).
2. The recycling system of stone wastewater according to claim 1, wherein each of the first vertical sedimentation tank (1) and the second vertical sedimentation tank (3) comprises a vertically arranged cylindrical barrel (11), a plurality of first legs (12) for supporting the barrel (11), a falling material outlet at the bottom of the barrel (11), an overflow weir (14) at the outer edge of the top of the barrel (11), and a central flow guide pipe (15) arranged in the barrel (11) and coaxially with the barrel (11), wherein the bottom of the barrel (11) is a conical bottom; the upper end of the central draft tube (15) is higher than the overflow weir (14), and the lower end of the central draft tube extends to the lower part of the cylinder body (11) and is positioned above the conical bottom.
3. The recycling system of stone wastewater as claimed in claim 1, wherein the top end of the central draft tube (15) is coaxially provided with a feeding chute (16); the feeding groove (16) is a circular groove and is positioned above the liquid level in the cylinder body (11), a feeding pipe is arranged on the feeding groove, and the diameter of the feeding pipe is 1.5-3.0 times of that of the central flow guide pipe (15); the inlet pipe is tangent with the lateral wall of feed chute (16) bottom, the upper end of center honeycomb duct (15) upwards stretches into in feed chute (16) and higher than the inlet pipe.
4. The stone wastewater recycling system according to claim 2, wherein a plurality of feeding pipes are arranged on the feeding chute (16) of the second vertical sedimentation tank (3), and the plurality of feeding pipes are arranged side by side up and down and are connected with the sedimentation tank through a pipeline respectively.
5. The recycling system of stone wastewater as claimed in claim 2, wherein the diameter of the first vertical sedimentation tank (1) is 3-5m, and the height thereof is 10-20 m; the diameter of the first clean water tank (2) is 3-5m, and the height of the first clean water tank is 9-18 m; the diameter of the second vertical sedimentation tank (3) is 10-15m, and the height of the second vertical sedimentation tank is 10-18 m; the diameter of the second clean water tank (4) is 5-8m, and the height of the second clean water tank is 8-15 m; the distance between the upper end of the central guide pipe (15) and the bottom of the feed chute (16) is 20-50 cm.
6. The stone wastewater recycling system according to claim 1, wherein the first clean water tank (2) and the second clean water tank (4) each comprise a vertically arranged and cylindrical tank body (21), a plurality of second legs (22) for supporting the tank body (21), a clean water outlet at the upper part of the tank body (21), a liquid inlet pipe (24) extending downwards into the middle or lower part of the tank body (21), and a sediment outlet at the bottom of the tank body (21), the bottom of the tank body (21) is conical, and the upper end of the liquid inlet pipe (24) is connected with the corresponding overflow weir (14) through an inclined pipe.
7. The recycling system of stone waste water as claimed in claim 1, wherein the vibrating screen is disposed in an inclined manner and a cyclone separator is disposed right above the upper portion of the vibrating screen; the cyclone separator is vertically arranged, a feed inlet of the cyclone separator is connected with the output end of the second wastewater collecting channel through a pipeline, a discharge outlet at the bottom of the cyclone separator is output to the vibrating screen, and a water outlet at the upper part of the cyclone separator is connected with the sedimentation tank through a pipeline; the aperture of the screen mesh of the vibrating screen is 1.0-3.0mm, and the water receiving tank is higher than the sedimentation tank.
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| CN111847731A (en) * | 2020-08-27 | 2020-10-30 | 湖北磊雅鑫盛石业有限公司 | Method for recycling stone wastewater and by-producing building raw materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111847731A (en) * | 2020-08-27 | 2020-10-30 | 湖北磊雅鑫盛石业有限公司 | Method for recycling stone wastewater and by-producing building raw materials |
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