CN203810051U - Low-abrasion slurry pipe conveying system - Google Patents
Low-abrasion slurry pipe conveying system Download PDFInfo
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- CN203810051U CN203810051U CN201420192707.2U CN201420192707U CN203810051U CN 203810051 U CN203810051 U CN 203810051U CN 201420192707 U CN201420192707 U CN 201420192707U CN 203810051 U CN203810051 U CN 203810051U
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- slurry
- lime milk
- pipe
- subtense angle
- pumping
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Abstract
The utility model provides a low-abrasion slurry pipe conveying system which comprises a lime milk preparation subsystem, a lime milk pumping adding subsystem and a slurry conveying subsystem. According to the low-abrasion slurry pipe conveying system, lime milk in a certain proportion is added in a slurry conveying pipe, the PH value of slurry in the conveying process is adjusted, the slurry is alkaline so that rheological behaviors of the ore slurry can be changed, and pipe abrasions are reduced through the special lubrication effect of the lime milk; meanwhile, the lime milk can generate a passive film, namely a calcium carbonate layer, on the inner wall of the pipe, the scaling speed of the passive film in the slurry conveying process can be basically the same as the abrasion speed of the inner wall of the pipe by controlling the adding amount of the lime milk, so that only the calcium carbonate passive film formed by the lime milk can be abraded by in the conveying process of the slurry in the pipe, abrasion of the conveyed slurry on the inner wall of the pipe is greatly reduced, the overall service life of the pipe conveying system is prolonged, the working efficiency of the pipe conveying system is improved, and the safety use of the pipe is guaranteed.
Description
Technical field
The utility model relates to the pipe transportation technology field of slurry material, relates to more specifically a kind of long-distance slurry pipe-line transportation system that can effectively reduce inner-walls of duct wearing and tearing.
Background technique
Slurry transportation pipeline majority of the prior art is all made by low carbon steel, the slurry material of carrying in pipeline can produce corrosive action to inner-walls of duct, and this slurry is different from the corrosion of simple fluid to conveying pipeline inner wall to the corrosion of inner-walls of duct, because it is to utilize its flow characteristic to carry by pipeline by solid material being mixed in after forming slurry shape in liquid that slurry is carried, therefore the solid particle that contains high concentration in the slurry of carrying in pipeline, these solid particles can further accelerate the rate of corrosion to inner-walls of duct in the whole course of conveying of slurry, and the larger solid particle tube wall that also can directly wear and tear, existing Slurry Pipeline Transportation distance is generally all distant in addition, the corrosion conveyance conduit that slurry can be serious in the long course of conveying of long distance like this, greatly reduce the working life of conveyance conduit and use safety, cost of transportation and the breakdown maintenance rate of Slurry Pipeline Transportation system have been improved.
Summary of the invention
The utility model is based on above-mentioned prior art problem, the Slurry Pipeline Transportation system of a kind of low wearing and tearing of proposition of innovation, the introducing of original creation lime milk prepare subtense angle and lime milk pumping and add subtense angle, by add a certain proportion of lime milk in slurry transportation pipeline, and regulate the pH value of slurry in course of conveying, make it be the rheological properties that alkalescence changes ore pulp slurry, and utilize the distinctive lubrication of lime milk to reduce pipe wear, the existence of lime milk simultaneously can produce one deck passivating film at inner-walls of duct and form calcium carbonate layer, and can to realize in slurry course of conveying the scale velocity of passivating film and the rate of wear of inner-walls of duct basic identical by controlling the adding quantity of lime milk, the calcium carbonate passivation film that only can wear and tear and be formed by lime milk in the course of conveying of slurry in pipeline like this, reduced greatly the corrosion of slurry body to inner-walls of duct, whole service life and the working efficiency of pipe-line transportation system have been improved, and ensured the safe handling of pipeline.
It is as follows that the utility model solves the problems of the technologies described above taked technological scheme:
A kind of Slurry Pipeline Transportation system of low wearing and tearing, comprise that lime milk is prepared subtense angle, subtense angle and slurry transport subsystem are added in lime milk pumping, the entry end of described lime milk pumping interpolation subtense angle is connected in lime milk and prepares subtense angle, the outlet end that subtense angle is added in described lime milk pumping is connected in slurry transport subsystem, and described lime milk pumping is added subtense angle lime milk is prepared after lime milk in subtense angle makes an addition to slurry to be conveyed and is pumped to described slurry transport subsystem.
Further according to Slurry Pipeline Transportation system described in the utility model, wherein said lime milk is prepared subtense angle and is comprised agitating vessel 1, filter basin 2, holding tank 3, supply pipe 7 and filter screen 8, described filter screen 8 is positioned over the opening top of agitating vessel 1, described supply pipe 7 is connected in the top entrance of agitating vessel 1, the bottom outlet of described agitating vessel 1 is connected in described filter basin 2, and the outlet of described filter basin 2 is connected in the top entrance of described holding tank 3.
Further according to Slurry Pipeline Transportation system described in the utility model, wherein said lime milk pumping is added subtense angle and is comprised diaphragm metering pump 4, feeding pump 5, slurry supply line 9, PH detection facility 10 and some connecting tubes, the bottom of described holding tank 3 is connected in the inlet pipe of described diaphragm metering pump 4 by connecting tube, the outlet conduit of described diaphragm metering pump 4 and described slurry supply line 9 are connected in the inlet pipe of described feeding pump 5 jointly, the outlet conduit of described feeding pump 5 is connected in slurry transport subsystem, and on the outlet conduit of described feeding pump 5, be provided with described PH detection facility 10.
Further according to Slurry Pipeline Transportation system described in the utility model, wherein said lime milk pumping is added subtense angle and is included many pumping branch roads, every pumping branch structure is identical and all include described diaphragm metering pump 4, feeding pump 5, slurry supply line 9, PH detection facility 10 and connecting tube, the inlet pipe of each pumping branch road is connected in the bottom outlet of described holding tank, and the outlet conduit of each pumping branch road is connected in slurry transport subsystem.
Further according to Slurry Pipeline Transportation system described in the utility model, wherein said slurry transport subsystem comprises carries main pump 6 and slurry to carry main pipeline 12, the outlet conduit of described feeding pump 5 is connected in the inlet pipe of described conveying main pump 6, and the outlet conduit of described conveying main pump 6 is connected in described slurry and carries main pipeline 12.
The technical solution of the utility model at least possesses following technical characterstic and technique effect:
1), by lime milk adding set is set in slurry transportation pipeline system, innovated slurry transportation pipeline system of the prior art, and improved its working life and working efficiency;
2), the utilization of innovation the alkalescence of lime milk, lubricated and fouling characteristic greatly improved the conveying characteristic of slurry in pipeline: by adding the lime milk of innovation amount, effectively regulated the pH value of slurry body in pipeline, improved the rheological properties of slurry, solid particle wherein be can be good in state of suspension, reduced line clogging dangerous; Utilize the intrinsic lubrication of lime milk can reduce the conveying friction of slurry in pipeline, reduced the wearing and tearing to pipeline simultaneously; Thereby make it in the course of conveying of long-distance pipe, can form one deck calcium carbonate passivation film at inner-walls of duct by adding the lime milk of innovation amount, the scale velocity of this passivating film and the rate of wear of inner-walls of duct are basic identical, thereby slurry is reduced to minimum to the wearing and tearing of inner-walls of duct, has improved pipeline working life.
Accompanying drawing explanation
The overall structure schematic diagram of the Slurry Pipeline Transportation system that accompanying drawing 1 is low wearing and tearing described in the utility model.
In figure, the implication of each reference character is as follows:
1-agitating vessel, 2-filter basin, 3-holding tank, 4-diaphragm metering pump, 5-feeding pump, 6-carries main pump, 7-supply pipe, 8-filter screen, 9-slurry supply line, 10-PH detection facility, 11-feeding pump inlet pipe, 12-slurry is carried main pipeline, 13-calcium carbonate passivation film.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail, so that those skilled in the art can more clearly understand scheme of the present utility model, but does not therefore limit protection domain of the present utility model.
As shown in Figure 1, the long-distance slurry pipe-line transportation system integral body that effectively reduces transducer wall ' s abrasion described in the utility model comprises three parts, be that lime milk is prepared subtense angle, subtense angle and slurry transport subsystem are added in lime milk pumping, described lime milk is prepared subtense angle for the preparation of the lime milk of certain concentration, described lime milk pumping is added subtense angle for the lime milk of prearranging quatity is mixed and made an addition in slurry body, and described slurry transport subsystem is for carrying adding the slurry of lime milk.Important innovations part of the present utility model is also wherein concentration and the adding quantity of lime milk in slurry of lime milk, this is that claimant carries practical studies through long pipeline, and in conjunction with for a long time conveying experience and overhaul of the equipments experience, pay huge creative work and sum up out, the concrete lime milk that will make is brought into play its lubrication property and PH modification characteristic in pipeline slurry body, lime milk prepare the mass concentration of the lime milk of preparing in subtense angle should be in 10-20%, preferred in 15-17%, wherein using water as solvent, make lime milk basic identical at the scale velocity of the formed calcium carbonate passivation film 13 of inner-walls of duct and the rate of wear of inner-walls of duct in long-distance transportation through pipeline process, add and enter slurry after lime milk and carry the pH value of the slurry in main pipeline should be between 10-12, be more preferably 11-11.5, the utility model utilizes diaphragm metering pump to control the adding quantity of lime milk, and the pH value that mixes rear slurry by detecting lime milk with slurry is selected the adding quantity of lime milk, reach add the PH of slurry after lime milk must be between 10-12, in slurry, add after lime milk meets these parameter relations and can well solve technical problem of the present utility model, this belongs to important innovations part of the present utility model, also be that claimant sums up out through long-term creative work.That in the process that the slurry after interpolation lime milk is carried in main pipeline, can further mix is more even, and because this Slurry Pipeline Transportation distance is generally all longer, more than 100 kilometers, therefore in the course of conveying of long distance, lime milk can be distributed in the various piece (pH value is stable at 11 left and right) in pipeline very uniformly, also can there is part lime milk in the inner wall surface part that comprises slurry pipeline, these lime milk can produce the fouling of rub resistance, on fouling surface, there is certain lubrication simultaneously, and ducted slurry rheological properties is also by good alkaline modification, make solid particle can be good at carrying with state of suspension, solved technical problem of the present utility model.
The following specifically describes the technical solution of the utility model, as shown in Figure 1, long-distance slurry pipe-line transportation system integral body described in the utility model comprises that lime milk prepares subtense angle, subtense angle and slurry transport subsystem are added in lime milk pumping, wherein said lime milk is prepared subtense angle and is comprised agitating vessel 1, filter basin 2, holding tank 3, supply pipe 7 and filter screen 8, described filter screen 8 is positioned over the opening top of agitating vessel 1, for the lime powder falling in agitating vessel 1 is carried out to filtering screening, described supply pipe 7 is connected in the top entrance of agitating vessel 1, for add the water as lime milk solvent in agitating vessel, the bottom outlet of described agitating vessel 1 is connected in filter basin 2, described filter basin 2 further filter for the lime milk to after stirring and dissolving in agitating vessel, the outlet of filter basin 2 is connected in the top entrance of holding tank 3, described holding tank 3 is for depositing the lime milk that meets working concentration requirement.By described lime milk, preparing subtense angle prepares the detailed process of the utility model lime milk used and is: the opening top that first the satisfactory filter screen 8 of order number is placed in to agitating vessel 1, lime powder pours on filter screen 8 and directly falls in agitating vessel 1 after filtration, then according to the preferred 15-17% of 10-20%() mass concentration requirement, by supply pipe 7 to a certain proportion of water of the interior interpolation of agitating vessel 1, and stir in agitating vessel, then the lime milk in agitating vessel flows into filter basin 2, in filter basin 2, carry out after further sedimentation filtration, filter basin top is met the lime milk of usage requirement, these lime milk flow in holding tank and further stir in order to follow-up use.
As shown in Figure 1, described lime milk pumping is added subtense angle and is comprised diaphragm metering pump 4, feeding pump 5, slurry supply line 9, PH detection facility 10 and some connecting tubes, the bottom that described lime milk is prepared holding tank 3 in subtense angle is connected in diaphragm metering pump 4 by pipeline, the outlet conduit of described diaphragm metering pump 4 and described slurry supply line 9 are connected in the feeding pump inlet pipe 11 of described feeding pump 5 jointly, after fully mixing in described feeding pump inlet pipe 11, the transfer ore pulp slurry being provided with slurry supply line 9 by the lime milk of diaphragm metering pump 4 pumpings is pumped to slurry transport subsystem by feeding pump 5.Wherein said diaphragm metering pump 4 is for controlling the pumping adding quantity to lime milk, the adding quantity of the described lime milk pH value that should meet slurry integral body after mixing with slurry as described above should be between 10-12, normal slurry is generally neutral or faint alkalescence, therefore on the outlet conduit of described feeding pump 5, be provided with PH detection facility 10, pH value for detection of the slurry of carrying in outlet conduit, as previously mentioned lime milk with ore pulp slurry at interior mix relatively even of longer feeding pump inlet pipe 11, then by feeding pump 5, through its outlet conduit pumping, exported in slurry transport subsystem, the pH value of the pH value of the slurry therefore detecting on feeding pump outlet conduit when namely slurry is finally carried in main pipeline substantially, therefore according to the slurry pH value detecting on feeding pump outlet conduit, adjust the pump output of diaphragm metering pump 4, when the pH value the detecting scope in predetermined 10-12 on the low side, increase the pump output of diaphragm metering pump 4, otherwise reduce its pump output, thereby controlled accurately the adding quantity of lime milk in ore pulp slurry.In order to improve the pumping efficiency of lime milk and slurry, subtense angle is added in described lime milk pumping preferably can comprise many pumping branch roads, two pumping branch roads that are parallel to each other as shown in Figure 1, every pumping branch road has included a diaphragm metering pump 4 and feeding pump 5, the bottom outlet pipeline of holding tank is divided into the inlet pipe that two branch roads are inputted respectively two diaphragm metering pumps 4, slurry supply line 9 also comprises two pipeline branch roads, jointly be connected in respectively the inlet pipe of a corresponding feeding pump with a corresponding diaphragm metering pump outlet conduit, 2 outer pipes of two feeding pumps are connected in the conveying main pump in slurry transport subsystem simultaneously.By this setup, when lime milk and slurry mixing efficiency of supply are provided, can also avoid causing because of the damage maintenance of feeding pump or diaphragm metering pump in a branch road shutdown of whole pumping system.
Described slurry transport subsystem adopts structure of the prior art substantially, comprise and carry main pump 6 and slurry to carry main pipeline 12, the outlet conduit of described feeding pump 5 is connected in the inlet pipe of carrying main pump 6, the outlet conduit of described conveying main pump is connected in slurry and carries main pipeline 12, thereby the ore pulp slurry that is mixed with prearranging quatity lime milk in described lime milk pumping interpolation subtense angle is by carrying main pump to be pumped to the long distance conveying of carrying out slurry in slurry conveying main pipeline 12.
The delivery method of realizing long-distance slurry pipeline under low wearing and tearing by said system described in the utility model specifically comprises following key step:
(1) according to the production capacity requirement of the analysis of slurry mass transport characteristic and conveyance conduit, in conjunction with raw material lime powder characteristic, by lime milk, prepare the lime milk that subtense angle is prepared the concentration that meets the requirements, and be stored in holding tank standby, the standby lime milk mass concentration of described holding tank is 10-20%, preferably 15-17%.
(2) utilize lime milk pumping to add after subtense angle fully mixes the lime milk in holding tank with ore pulp slurry to be conveyed and be pumped to slurry transport subsystem, after described ore pulp slurry combined lime breast, the whole pH value of slurry is between 10-12, preferably 11-11.5.
(3) utilize slurry transport subsystem the slurry that is mixed with lime milk in step (2) to be grown to the conveying of distance.
The utility model is by adding the lime milk of certain concentration and specified quantitative in the slurry of carrying at pipeline, effectively improve slurry and carried rheological properties, make the pH value in slurry can keep solid particle in state of suspension, with this, to reduce the blocked risk of pipeline for a long time, simultaneously the length of slurry apart from course of conveying in, in inner-walls of duct, form one deck calcium carbonate passivation film 13, thereby solid particle in slurry is directly damaged and has been reduced to floor level the abrasion and corrosion of tube wall, improved pipeline working life and delivery safety.
Below be only that preferred implementation of the present utility model is described; the technical solution of the utility model is not limited to this; the any known distortion that those skilled in the art do on the basis of major technique of the present utility model design all belongs to the claimed technology category of the utility model, and the concrete protection domain of the utility model is as the criterion with the record of claims.
Claims (5)
1. the Slurry Pipeline Transportation system of low wearing and tearing, it is characterized in that, comprise that lime milk is prepared subtense angle, subtense angle and slurry transport subsystem are added in lime milk pumping, the entry end of described lime milk pumping interpolation subtense angle is connected in lime milk and prepares subtense angle, the outlet end that subtense angle is added in described lime milk pumping is connected in slurry transport subsystem, and described lime milk pumping is added subtense angle lime milk is prepared after lime milk in subtense angle makes an addition to slurry to be conveyed and is pumped to described slurry transport subsystem.
2. Slurry Pipeline Transportation system according to claim 1, it is characterized in that, described lime milk is prepared subtense angle and is comprised agitating vessel (1), filter basin (2), holding tank (3), supply pipe (7) and filter screen (8), described filter screen (8) is positioned over the opening top of agitating vessel (1), described supply pipe (7) is connected in the top entrance of agitating vessel (1), the bottom outlet of described agitating vessel (1) is connected in described filter basin (2), and the outlet of described filter basin (2) is connected in the top entrance of described holding tank (3).
3. Slurry Pipeline Transportation system according to claim 2, it is characterized in that, described lime milk pumping is added subtense angle and is comprised diaphragm metering pump (4), feeding pump (5), slurry supply line (9), PH detection facility (10) and some connecting tubes, the bottom of described holding tank (3) is connected in the inlet pipe of described diaphragm metering pump (4) by connecting tube, the outlet conduit of described diaphragm metering pump (4) and described slurry supply line (9) are connected in the inlet pipe of described feeding pump (5) jointly, the outlet conduit of described feeding pump (5) is connected in slurry transport subsystem, and on the outlet conduit of described feeding pump (5), be provided with described PH detection facility (10).
4. Slurry Pipeline Transportation system according to claim 3, it is characterized in that, described lime milk pumping is added subtense angle and is included many pumping branch roads, every pumping branch structure is identical and all include described diaphragm metering pump (4), feeding pump (5), slurry supply line (9), PH detection facility (10) and connecting tube, the inlet pipe of each pumping branch road is connected in the bottom outlet of described holding tank, and the outlet conduit of each pumping branch road is connected in slurry transport subsystem.
5. according to the Slurry Pipeline Transportation system described in claim 3 or 4, it is characterized in that, described slurry transport subsystem comprises carries main pump (6) and slurry to carry main pipeline (12), the outlet conduit of described feeding pump (5) is connected in the inlet pipe of described conveying main pump (6), and the outlet conduit of described conveying main pump (6) is connected in described slurry and carries main pipeline (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192707.2U CN203810051U (en) | 2014-04-21 | 2014-04-21 | Low-abrasion slurry pipe conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192707.2U CN203810051U (en) | 2014-04-21 | 2014-04-21 | Low-abrasion slurry pipe conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203810051U true CN203810051U (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420192707.2U Expired - Fee Related CN203810051U (en) | 2014-04-21 | 2014-04-21 | Low-abrasion slurry pipe conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203810051U (en) |
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2014
- 2014-04-21 CN CN201420192707.2U patent/CN203810051U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20170421 |
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| CF01 | Termination of patent right due to non-payment of annual fee |