CN201072026Y - Drainage shunting structure of dry method red mud yard - Google Patents
Drainage shunting structure of dry method red mud yard Download PDFInfo
- Publication number
- CN201072026Y CN201072026Y CNU2007202007087U CN200720200708U CN201072026Y CN 201072026 Y CN201072026 Y CN 201072026Y CN U2007202007087 U CNU2007202007087 U CN U2007202007087U CN 200720200708 U CN200720200708 U CN 200720200708U CN 201072026 Y CN201072026 Y CN 201072026Y
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- Prior art keywords
- red mud
- pipe
- drainage
- dry method
- stockyard
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Abstract
The utility model discloses a water discharging and flow distributary structure used for the dry method red mud stockyard. The utility model comprises a red mud stockyard, a filter pipe, a stockyard returning tank and a water returning pipe, wherein, the filter pipe is connected with the water returning pipe, the water returning pipe is connected with the stockyard returning tank, stockyard is composed of a red mud adhering liquid returning tank and a rain water returning tank, the filter pipe is arranged at the central position of the red mud stockyard, a circular groove is connected on the inner wall at the bottom end of the filter pipe, a water discharging gallery is arranged at the lower part of the red mud stockyard, one end of the water discharging gallery is communicated with the rain water returning tank, and the water returning pipe is arranged inside the water discharging gallery, one end of the water returning pipe is connected at the position of the circular groove of the filter pipe, and the other end is connected with the red mud adhering liquid returning tan. Thus, not only the reliability of the water returning system can be ensured, but also the pollution to the environment caused by the leakage of the adhering liquid can be prevented, simultaneously the arrangement of the water discharging gallery also can be convenient for performing the overhaul to the water returning system, and the stability of the production system is enhanced and the leakage hidden danger is eliminated in time.
Description
Technical field
The utility model relates to a kind of drainage water diffluence structure of dry method red mud storage yard, belongs to dry-method red mud disposal technology field.
Background technique
Red mud is the waste residue that produces in the alumina producing.Red mud is except that can fully utilizing on a small quantity, and each alumina factory all need be built special red mud dump and store up red mud.Storing up of red mud mainly contains dry method and wet method dual mode.It is generally acknowledged that the red mud slurry moisture content that enters the stockyard is being more than 47% that wet method, moisture content are lower than 47% and are dry method.General 3～the 5g/L of the attached alkali of red mud.So the pH value of wastewater from red mud is usually more than 12.Its situation of storing up of wet method stockyard is similar to reservoir, has seepage line height, safety and the bigger shortcoming of environmental protection risk, is replaced by dry method red mud storage yard gradually.
The backwater of dry method red mud storage yard comprises wastewater from red mud and drops to the rainwater that the surface, stockyard is polluted by the red mud layer.No matter be wastewater from red mud or surperficial rainwater, all can not directly efflux, now all collect back pool, send the alumina factory recycling again back to by special return water system because of its alkali content is higher than emission standard.
The dry method of red mud is stored up process, is with the fluidised form red mud slurry of moisture content below 47%, the process that physical process fades to the solid-state red mud of moisture content below 26% such as oozes by evaporation, row.Red mud is dry, fixed gradually in the process of storing up, and mechanical strength increases gradually until constructing sub-dam as dam material and continues upwards to store up, and finally forms stable red mud accumulation body.
The return water system of dry method red mud storage yard is made up of back pool outside filter pipe, bottom of the reservior return pipe, bottom of the reservior drainage layer, the storehouse etc. usually.After red mud slurry arrives the stockyard, carry out sedimentation separation in 3～5 days, isolated wastewater from red mud most ofly flows along the red mud laminar surface, enters filter pipe by the sandstone filter around the filter pipe, flows into the bottom of the reservior return pipe again, gets back to back pool outside the storehouse.The small part wastewater from red mud is along oozing under the red mud slabbing seam, and arrival is collected filter pipe by the drainage layer behind the bottom of the reservior, enters back pool by the bottom of the reservior return pipe again.If the stockyard rainfall, the rainfall discharge process of hour its rainwater is basic identical with the discharging of wastewater from red mud, rainfall greatly the time rainwater mainly enter from the overflow of filter pipe top, get back to back pool outside the storehouse by the bottom of the reservior return pipe again.Wastewater from red mud water yield during dry season is little, the basicity height; And the amount of rainfall during heavy rain is big, and the backwater alkali concn is low; The return water system of existing dry method red mud storage yard has following shortcoming:
(1) return water system is not considered the shunting of rainwater and wastewater from red mud, is unfavorable for using respectively in the alumina factory basicity just being required different workshop sections containing the different backwater of basicity.And heavy rain has in short-term, the characteristics of big flow, and to mix the back pH value higher with attached liquid in the back pool, brings difficulty to oxidation aluminium manufacturer water budget.
(2) water return pipeline circuit in bottom of the reservior is longer, the reliability requirement height.In case bottom of the reservior, operation back, stockyard return pipe is owing to reasons such as uneven settlement of foundation produce fracture damage, wastewater from red mud will leak environment is produced alkali pollution; Since red mud slurry still constantly enter stockyard, under ground piping belong to the concealed work leak source not easy-to-search, promptly enable to determine that leak source also is difficult to because of excavated volume is huge repair, therefore the bottom of the reservior return pipe damages the continuous service that will influence dry method storage yard, even will influence the continuous service of alumina factory, because it is huge that a newly-built red mud dump is not only invested, and need the building time in 1 ~ 2 year.
The model utility content
The purpose of this utility model is, a kind of drainage water diffluence structure of dry method red mud storage yard is provided; The utility model is set to two by existing stockyard back pool; return pipe adopts steel pipe to be connected with the flexible pipe collocation; so not only can guarantee the reliability of return water system; and can prevent that attached liquid from leaking pollution on the environment; being provided with of drainage gallery can also conveniently be overhauled return water system simultaneously, improves the stability of production system.
The technical solution of the utility model; The drainage water diffluence structure of dry method red mud storage yard, comprise red mud dump, filter pipe 6, stockyard back pool and return pipe 5, filter pipe 6 is connected with return pipe 5, return pipe 5 is connected with the stockyard back pool, the stockyard back pool is made up of wastewater from red mud back pool 2 and rainwater back pool 3, be provided with filter pipe 6 in the red mud dump center portion, inwall is connected with annular groove 8 in the bottom of filter pipe 6, below red mud dump, be provided with drainage gallery 1, one end of drainage gallery 1 is communicated with rainwater back pool 3, and be provided with return pipe 5 in drainage gallery 1 inside, return pipe 5 one ends are connected the annular groove position of filter pipe 6, and the other end is connected with wastewater from red mud back pool 2.
Return pipe 5 is arranged in pairs or groups mutually by steel pipe and corrugated flexible metal tube and is connected to form.
The bottom of drainage gallery 1 is the plane of inclination, its inclination angle aspect rainwater back pool 3, and the minimum point in the plane of inclination is provided with leak detection hole 11, is provided with liquid-discharging tube 12 in the bottom in leak detection hole 11.
Be provided with semicircular chute 4 in drainage gallery 1, return pipe 5 is placed in the chute 4.
The caliber of return pipe 5 is 0.2～0.3 meter, and is connected with 1 joint corrugated flexible metal tube steel pipe in the middle of 6 interconnective steel pipes, and steel pipe and steel pipe, all is connected by flange between steel pipe and the corrugated flexible metal tube.
Equal 0.2～the 0.4m of the height and width of annular groove 8.
On drainage gallery 1, be provided with inlet 10, ventilated port and cat ladder, and enter the mouth 10, leak detection that ventilated port and cat ladder are positioned at drainage gallery 1 cheats near 11.
Compared with the prior art, the utility model is by the bottom inside connecting ring connected in star at filter pipe, build drainage gallery in the red mud dump bottom, end at drainage gallery is provided with a rainwater water reservoir, the return pipe that is connected with the flexible pipe collocation with steel pipe is set in drainage gallery again, like this when rainy, can shunt wastewater from red mud and rainwater by the annular groove that is connected on the filter pipe, isolated rainwater flows into the rainwater water reservoir along drainage gallery, reliability that so not only can reinforced platoon's water system, and can prevent that attached liquid from leaking environment is polluted and improves the water utilization ratio; Drainage gallery can be used as the Maintenance and Repair passage of backwater facility when being in no rainy season, thereby the fault that can in time find return pipe is in time eliminated the hidden danger of leaking.Other each operation of factory that can also be used effectively of the water storage in the rainwater back pool simultaneously, conserve water resource and cost of production.Therefore the utility model has excellent popularization to be worth and use value, brings good economic benefits can for society and enterprise.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that A-A of the present utility model is to schematic representation;
Fig. 3 is that B-B of the present utility model is to schematic representation.
Embodiment
Embodiment: as Fig. 1 Fig. 2 and shown in Figure 3, the drainage water diffluence structure of dry method red mud storage yard comprises red mud dump, is provided with two rainwater back pools 3 that independently store the wastewater from red mud back pools 2 of wastewater from red mud respectively and store rainwater at an end of red mud dump; It is low that the red mud dump of stacking red mud is divided into some centres by initial dam 14, high all around little red mud piling up zone, central position in every little red mud piling up zone all is provided with filter pipe 6, filter pipe 6 employing diameters are that the steel pipe of 1～1.5m is made, and on steel pipe, offer the infiltration hole, the filter pipe 6 in each little red mud piling up zone is connected in series mutually with return pipe 5, the other end of return pipe 5 is connected with wastewater from red mud back pool 2, lay route in the bottom of red mud dump along return pipe 5 and build drainage gallery 1, drainage gallery 1 is connected with rainwater back pool 3, drainage gallery 1 is a reinforced concrete structure, 1.5～1.8 meters of clear span, 1.5～1.8 meters of clear height, top is semicircle, the bottom is a rectangle, and certain gradient is arranged in the bottom, from the starting point aspect rainwater back pool 3 of drainage gallery 1.In the bottom of drainage gallery 1 side a semicircle chute 4 is set, the radius of semicircle chute 4 is 0.3～0.4 meter, return pipe 5 is arranged in the semicircle chute 4, preferred 0.2～0.3 meter of the caliber of return pipe 5, its end passes gallery and inserts attached liquid back pool 2, bottom at semicircle chute 4, the minimum point of drainage gallery 1 is provided with leak detection hole 11, its length and width, be 0.5～1 meter deeply, in leak detection hole 11, be provided with liquid-discharging tube 12, liquid-discharging tube 12 is communicated with rainwater back pool 3, and the starting point of liquid-discharging tube 12 is provided with atmospheric valve 13.On drainage gallery 1, be provided with inlet 10, ventilated port and cat ladder, and enter the mouth 10, near leak detection that ventilated port and cat ladder are positioned at drainage gallery 1 cheats.
Return pipe 5 is made up of steel pipe and corrugated flexible metal tube, and the preferred length of the every joint of steel pipe is 3 meters, and its two ends are welded with flange; The preferred length of corrugated flexible metal tube is 1 meter, and its two ends also are connected with flange; All be connected between steel pipe and steel pipe, steel pipe and the corrugated flexible metal tube, and take to connect 1 joint corrugated flexible metal tube steel pipe in the middle of the steel pipe of per 6 connections by flange.Because of when no rain, it is that inwall along filter pipe 6 flow in the return pipe 5 that wastewater from red mud enters behind the filter pipe 6, when raining in torrents, rainwater is then gone into from the top jar of filter pipe 6, the caliber that is connected the return pipe 5 on the filter pipe 6 has only 0.2～0.3, can't satisfy that caliber is the inflow of the filter pipe 6 of 1～1.5m when raining, and influences drainage efficiency, existing claimant welds a ring annular groove 8 in filter pipe 6 bottom interior wall, is used to collect the wastewater from red mud that infiltrates the filter pipe tube wall by sandstone filter 7; Annular groove 8 is used welded steel plate, wide and height is 0.2～0.4 meter, return pipe 5 is connected annular groove 8 bottoms of filter pipe 6 by standpipe 9, and the wastewater from red mud that flow into when no rain in the annular groove 8 enters return pipe 5 by standpipe 9 like this, flows automatically to attached liquid back pool 2 along return pipe 5 again.
During dry season, the wastewater from red mud major part flows along the red mud laminar surface, infiltrates filter pipe 6 through sandstone filter 7, is seeped into the sandstone drainage layer 16 of bottom, stockyard under the small part, infiltrates filter pipe 6 again.The wastewater from red mud that enters filter pipe 6 flows in the groove 8 along tube wall, flows into return pipe 5 through standpipe 9, flows automatically to attached liquid back pool 2 again; If in the leak detection hole 11 water is arranged, show that then return pipe 5 has water leakage phenomenon during dry season, the maintainer can 10 enter in the drainage gallery 1 section of leaking of return pipe 5 was overhauled or changed from entering the mouth this moment.Leak be found before, leaking of return pipe 5 enters rainwater back pool 3 along the semicircle chute 4 of drainage gallery 1 bottom, then do not pollute the environment.Cause the reinforced concrete structure of drainage gallery 1 to produce crack or fracture if sedimentation or other factors occur because of ground is inhomogeneous, 5 of return pipes that adopt the collocation of steel pipe and corrugated flexible metal tube to be connected have the function that compensation is out of shape and are unlikely damage, and wastewater from red mud still can enter attached liquid back pool 2 by return pipe 5 and be unlikely and leak; The local damage of drainage gallery 1 will be found in the making regular check on of yard management personnel and in time repair.
When raining in torrents, the rainwater of hyperfiltration water pipe 6 tube walls infiltration ability will produce temporary transient ponding in the stockyard, when the ponding face is higher than the top of filter pipe 6, rainwater will flow into from the upper orifice of filter pipe 6, and overflow annular groove 8, flow into drainage gallery 1, drainage gallery 1 is drained into rainwater back pool 3 with rainwater.The ponding that the water surface is lower than filter pipe 6 tops will slowly penetrate in the filter pipe 6 by sandstone filter 7, flows into return pipe 5, flows automatically in the attached liquid back pool 2 again.The bottom gradient of drainage gallery 1 is calculated according to amount of rainfall and is determined.After heavy rain finishes, open atmospheric valve 13, the ponding in the leak detection hole 11 is drained in the rainwater back pool 2, close the atmospheric valve 13 on the liquid-discharging tube 12 then, make leak detection hole 11 just often be in anhydrous state, so that monitor the working condition of return pipe 5 at any time.
Claims (8)
1. the drainage water diffluence structure of a dry method red mud storage yard, comprise red mud dump, filter pipe (6), stockyard back pool and return pipe (5), filter pipe (6) is connected with return pipe (5), return pipe (5) is connected with the stockyard back pool, it is characterized in that: the stockyard back pool is made up of wastewater from red mud back pool (2) and rainwater back pool (3), be provided with filter pipe (6) in the red mud dump center portion, bottom inwall at filter pipe (6) is connected with annular groove (8), below red mud dump, be provided with drainage gallery (1), one end of drainage gallery (1) is communicated with rainwater back pool (3), and be provided with return pipe (5) in drainage gallery (1) inside, return pipe (5) one ends are connected the bottom of the annular groove (8) of filter pipe (6), and the other end is connected with wastewater from red mud back pool (2).
2. the drainage water diffluence structure of dry method red mud storage yard according to claim 1, it is characterized in that: return pipe (5) is arranged in pairs or groups mutually by steel pipe and corrugated flexible metal tube and is connected to form.
3. the drainage water diffluence structure of dry method red mud storage yard according to claim 1, it is characterized in that: the bottom of drainage gallery (1) is the plane of inclination, its inclination angle aspect rainwater back pool (3), and the minimum point in the plane of inclination is provided with leak detection hole (11), is provided with liquid-discharging tube (12) in the bottom in leak detection hole (11).
4. the drainage water diffluence structure of dry method red mud storage yard according to claim 3, it is characterized in that: be provided with semicircular chute (4) in drainage gallery (1), return pipe (5) is placed in the chute (4).
5. the drainage water diffluence structure of dry method red mud storage yard according to claim 2, it is characterized in that: the caliber of return pipe (5) is 0.2 ~ 0.3 meter, and in the middle of 6 interconnective steel pipes, be connected with 1 joint corrugated flexible metal tube steel pipe, and all be connected between steel pipe and the steel pipe, steel pipe and corrugated flexible metal tube by flange.
6. the drainage water diffluence structure of dry method red mud storage yard according to claim 1, it is characterized in that: filter pipe (6) is the steel pipe of 1～1.5m for diameter, offers the infiltration hole on steel pipe, and is provided with sandstone drainage layer (7) all around at filter pipe (6).
7. the drainage water diffluence structure of dry method red mud storage yard according to claim 6 is characterized in that: the equal 0.2～0.4m of height and width of annular groove (8).
8. the drainage water diffluence structure of dry method red mud storage yard according to claim 3, it is characterized in that: on drainage gallery (1), be provided with inlet (10), ventilated port and cat ladder, and inlet (10), ventilated port and cat ladder are positioned near the leak detection hole (11) of drainage gallery (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202007087U CN201072026Y (en) | 2007-07-25 | 2007-07-25 | Drainage shunting structure of dry method red mud yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202007087U CN201072026Y (en) | 2007-07-25 | 2007-07-25 | Drainage shunting structure of dry method red mud yard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201072026Y true CN201072026Y (en) | 2008-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007202007087U Expired - Lifetime CN201072026Y (en) | 2007-07-25 | 2007-07-25 | Drainage shunting structure of dry method red mud yard |
Country Status (1)
| Country | Link |
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| CN (1) | CN201072026Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353216B (en) * | 2007-07-25 | 2010-09-22 | 贵阳铝镁设计研究院 | Drainage water diffluence method for dry red mud disposal and drainage water diffluence structure thereof |
| CN102557088A (en) * | 2010-12-07 | 2012-07-11 | 沈阳铝镁设计研究院有限公司 | Method for recycling red mud disposal site backwater returning to aluminium oxide production system |
| CN109809551A (en) * | 2019-03-26 | 2019-05-28 | 中化重庆涪陵化工有限公司 | A kind of phosphor-gypsum backwater reutilization system |
| CN109826295A (en) * | 2019-03-26 | 2019-05-31 | 中化重庆涪陵化工有限公司 | A kind of ardealite tailings stack |
-
2007
- 2007-07-25 CN CNU2007202007087U patent/CN201072026Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353216B (en) * | 2007-07-25 | 2010-09-22 | 贵阳铝镁设计研究院 | Drainage water diffluence method for dry red mud disposal and drainage water diffluence structure thereof |
| CN102557088A (en) * | 2010-12-07 | 2012-07-11 | 沈阳铝镁设计研究院有限公司 | Method for recycling red mud disposal site backwater returning to aluminium oxide production system |
| CN109809551A (en) * | 2019-03-26 | 2019-05-28 | 中化重庆涪陵化工有限公司 | A kind of phosphor-gypsum backwater reutilization system |
| CN109826295A (en) * | 2019-03-26 | 2019-05-31 | 中化重庆涪陵化工有限公司 | A kind of ardealite tailings stack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080611 Effective date of abandoning: 20070725 |