CN204369745U - A kind of mud flash tank - Google Patents
A kind of mud flash tank Download PDFInfo
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- CN204369745U CN204369745U CN201420762231.1U CN201420762231U CN204369745U CN 204369745 U CN204369745 U CN 204369745U CN 201420762231 U CN201420762231 U CN 201420762231U CN 204369745 U CN204369745 U CN 204369745U
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Abstract
A kind of mud flash tank, comprises, tank body, be provided with opening for feed in the middle part of tank body, the vapour outlet that top is provided with, bottom is provided with discharge port, also be provided with feed-pipe, feed-pipe extends to tank interior by opening for feed, and the part that feed-pipe is positioned at tank body is provided with multiple nozzle; In tank body and the top being positioned at feed-pipe is provided with silk screen, the below of nozzle is also staggeredly equipped with multiple sieve plate, sieve plate is furnished with micropore porcelain layers of balls, described mud flash tank adds the contact area spraying into low-temp low-pressure environment in mud mixture material in tank body and tank body, improve flash efficiency, effective elimination falls the moisture in a part of mud; The solid matter that can stop in mud that arranges of silk screen overflows with steam, simultaneously can also foam in broken material, liquid is stoped to overflow with steam, sieve plate and micropore porcelain ball can increase the residence time of mud mixture in described tank body, further raising flash efficiency, is specially adapted to field of sludge treatment.
Description
Technical field
The utility model relates to a kind of sludge treatment device, relates in particular to a kind of mud flash tank.
Background technology
In recent years along with the high speed development of industry and people are to the growing interest of environment, sewage load significantly increases, and sewage can produce a large amount of mud after precipitation process, causes sizable negative impact to environment.Owing to removing containing a large amount of organism in mud, nitrogen, phosphorus, oxycarbide, also there is the poisonous and harmful elements such as heavy metal, pathogenic bacterium and parasite, if improper to sludge treatment, serious secondary pollution can be caused, therefore, need to select suitable method of disposal, realize the minimizing of mud, stabilization and innoxious.
The moisture percentage in sewage sludge produced after settlement of sewage is up to more than 90%, volume is very large, easily causes landfill operation difficulty, leachate quality worsens and landfill piles body instability, has to pass through processed, improve the solid content of mud cake, to reduce the floor space that mud is banked up.Owing to containing a large amount of microorganism cellss and organism colloid in mud, the water in mud is subject to the constraint of multi-acting force, causes sludge dewatering comparatively difficult.
Flash method is development in recent years a kind of pretreatment process rapidly, because the unexpected reduction of pressure makes the part in mud become saturation steam under flash tank pressure after mud after its principle is high temperature oxidation sterilization enters the flash tank of low pressure, thus the portion of water of taking off in mud, also can discharge the self-contained gas of mud simultaneously, the gas that saturation steam and mud carry is discharged by the steam outlet of flash tank, realize gas-liquid separation, avoid gas to discharge in the lump with liquid.As Chinese patent literature CN202322584U disclose a kind of can the hydro-thermal flash distillation plant of recovery of heat in advance, comprise the opening for feed of tank body, flash-off steam steam outlet and hydro-thermal mud class organic waste, flash-off steam steam outlet is located at the top of tank body, and opening for feed is positioned in the middle part of tank wall.But above-mentioned flash distillation plant opening for feed is arranged at tank body side, little with the area be exposed in low-temp low-pressure environment after mud class organic waste enters tank body, flash efficiency is lower; In addition, owing to containing a certain amount of solid residue in mud, likely take a part of solid or liquid foam impurity out of when flash-off steam is discharged, and after flash tank life-time service, solid residue is easily attached to discharge outlet, blocking discharge port.
Utility model content
For this reason, technical problem to be solved in the utility model is that in prior art, mud flash tank flash efficiency is lower, likely with solid or liquid foam impurity in flash-off steam, and cannot remove solid residue, easily cause discharge port to block, thus propose a kind of mud flash tank.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of mud flash tank, comprising:
Tank body, the middle part of described tank body is provided with opening for feed, and top is provided with vapour outlet, and bottom is provided with discharge port;
Also be provided with feed-pipe, described feed-pipe extends to the inside of described tank body by opening for feed, and the part that described feed-pipe is positioned at described tank body is provided with multiple nozzle;
Be positioned at above described feed-pipe and be provided with silk screen in described tank body.
The below of described nozzle is also staggeredly equipped with multiple sieve plate, and each described sieve plate is horizontally disposed with, and each described sieve plate is furnished with micropore porcelain layers of balls.
Described nozzle is the conical nozzle of spray angle 40 ° ~ 90 °, and the quantity of described nozzle is more than or equal to 3.
Be communicated with the vapour outlet of described tank body and be provided with blow-off line, described blow-off line is provided with steam discharge motorized valve, pressure controller is connected with described steam discharge motorized valve, be communicated with the top of described tank body while of described pressure controller and arrange, be suitable for the pressure measuring described tank interior.
Described feed-pipe is provided with charging motorized valve, is connected with flow director with described charging motorized valve, be connected with described feed-pipe while of described flow director and arrange, be suitable for the flow measuring described feed-pipe.
Be communicated with described discharge port and be provided with discharge nozzle, described discharge nozzle is provided with discharge motorized valve, be connected with fluid level controller with the bottom of described discharge motorized valve and described tank body.
Described discharge port is the funnel type pipeline expanded gradually from top to bottom.
Described silk screen is nickel screen or aluminium net, and surface is provided with epoxy resin corrosion protection coating, and described corrosion protection coating thickness is 100-150 μm.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) the mud flash tank that provides of the utility model, comprise, tank body, be arranged at the opening for feed in the middle part of described tank body, be arranged at the vapour outlet at described tank body top, be arranged at the discharge port of described tank base, also comprise feed-pipe, described feed-pipe extends to described tank interior by opening for feed, and the part that described feed-pipe is positioned at described tank body is provided with multiple nozzle; In described tank body and the top being positioned at described feed-pipe is provided with silk screen.Arrange multiple nozzle in described mud flash tank, add the contact area spraying into low-temp low-pressure environment in mud mixture material in tank body and tank body, improve flash efficiency, effective elimination falls the portion of water in mud; The solid matter that can stop in mud that arranges of silk screen overflows with steam, simultaneously can also foam in broken material, stops liquid to overflow with steam.
(2) the mud flash tank that provides of the utility model, the below of described nozzle is also staggeredly equipped with multiple sieve plate, and each described sieve plate is horizontally disposed with, and each described sieve plate is provided with micropore porcelain layers of balls.Described sieve plate and arranging of micropore porcelain layers of balls can increase the residence time of mud mud mixture in described tank body, further raising flash efficiency, more moisture in removing mud mixture, and micropore porcelain layers of balls can adhere to the solid matter in a part of mud, after flash tank life-time service can be avoided, solid matter blocking discharge port.
(3) the mud flash tank that provides of the utility model, described nozzle is the conical nozzle of spray angle 40 ° ~ 90 °, and the quantity of described nozzle is more than or equal to 3.Described conical nozzle can realize the mud mixture taper cloth liquid entering described tank body, projected area is large, thus making the contact area of mud mixture and low-temp low-pressure environment large, flash efficiency is high, and this spray regime can ensure tank body internal pressure and liquid level stabilizing simultaneously.
(4) the mud flash tank that provides of the utility model, the temperature in described tank body is 60 ~ 100 DEG C, and pressure is 0-0.5MPa; The mud temperature entering described tank body is 120 ~ 160 DEG C, and pressure is 2.0 ~ 3.0MPa.The mud mixture of High Temperature High Pressure enters in tank body, fast cooling step-down, wherein a part of liquid rapid vaporization, and realizes gas-liquid separation, and under this operational condition, flash efficiency is higher.
(5) the mud flash tank that provides of the utility model, described tank body top is also connected with the pressure controller for controlling exhaust vapour pressure; Described feed-pipe is connected with the flow director for controlling inlet amount; Described tank body lower part is connected with the fluid level controller for controlling amount of liquid in described tank body; .Described flow director can control the amount of the mud mixture entering described tank body, can make to steam stable, and gas-liquid separation effect reaches best, and a large amount of steam that flash distillation produces enablely can measure maximum recovery; Described pressure controller can make the vapor pressure of discharge stablize, and can deliver a vapor to larger distance further utilize without the need to external energy; The described fluid level controller liquid level can monitored in tank body remains on certain height, thus can make to form fluid-tight in tank body, stops gas to be discharged by discharge port downwards.
(6) the mud flash tank that provides of the utility model, described discharge port is the funnel type pipeline expanded gradually from top to bottom.Described discharge port lower end is open, and in the mud mixture flowed out after can effectively avoiding flash distillation, solid matter is attached to discharge port, causes discharge port to block gradually.
(7) the mud flash tank that provides of the utility model, described silk screen is nickel screen or aluminium net, and surface is provided with epoxy resin corrosion protection coating, and described corrosion protection coating thickness is 100-150 μm.Normal containing corrosivess such as oxynitride, oxysulfide, organic acids in mud, at high temperature under high pressure, very easily corrode silk screen, described nickel screen or aluminium net anticorrosion ability better, further, the setting of corrosion protection coating can effectively avoid the silk screen of long-term exposure in corrosives to be damaged by corrosion, and reduces Maintenance and Repair cost.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of a kind of mud flash tank described in the utility model.
In figure, Reference numeral is expressed as: 1-tank body; 2-opening for feed; 3-vapour outlet; 4-discharge port; 5-feed-pipe; 6-nozzle; 7-sieve plate; 8-flow director; 9-fluid level controller; 10-pressure controller; 11-silk screen; 12-steam discharge motorized valve, 13-charging motorized valve; 14-discharge motorized valve.
Embodiment
Embodiment 1
The present embodiment provides a kind of mud flash tank, comprises, tank body 1, described tank body 1 is middle part is cylinder, two ends are the container of ellipsoidal head, and the temperature in described tank body 1 is 60 DEG C, and pressure is 0MPa, the mud temperature entering described tank body 1 is 120 DEG C, and pressure is 2.0MPa.
In the middle part of described tank body 1, be provided with opening for feed 2, described tank body 1 top is provided with vapour outlet 3, bottom described tank body 1, is provided with discharge port 4, described discharge port 4 is the funnel type pipeline expanded gradually from top to bottom.
Further, be also provided with feed-pipe 5, described feed-pipe 5 extends to the inside of described tank body 1 by opening for feed 2, and the part that described feed-pipe 5 is positioned at described tank body 1 is provided with 3 nozzles 6; The injection direction of each described nozzle 6 is arranged all down; In the present embodiment, described nozzle 6 to be spray angles the be conical nozzle of 40 °.
In described tank body 1, the top of described feed-pipe 5 is provided with silk screen 11, and in the present embodiment, described silk screen 11 is nickel screen, and its surface is provided with the epoxy resin corrosion protection coating that thickness is 100 μm.
The below of described nozzle 6 is also staggeredly equipped with 2 pieces of sieve plates 7, described sieve plate 7 is provided with the micropore porcelain layers of balls for filtering solid phase impurity.
Be communicated with the top of described tank body 1 in the present embodiment and be provided with blow-off line, described blow-off line is provided with steam discharge motorized valve 12, pressure controller 10 is connected with described steam discharge motorized valve 12, be communicated with the top of described tank body 1 while of described pressure controller 10 and arrange, be suitable for the pressure measuring described tank body 1 inside; Described feed-pipe 5 is provided with charging motorized valve 13, is connected with flow director 8 with described charging motorized valve 13, be connected with described feed-pipe 5 while of described flow director 8 and arrange, be suitable for the flow measuring described feed-pipe 5; Be communicated with described discharge port 4 and be provided with discharge nozzle, described discharge nozzle is provided with discharge motorized valve 14, be connected with fluid level controller 9 with the bottom of described discharge motorized valve 14 and described tank body 1.
The working process of the mud flash tank described in the present embodiment is: the mud mixture of High Temperature High Pressure is injected into the inside of tank body 1 by 3 nozzles 6 on described feed-pipe 5, described mud mixture is rapid decrease temperature and pressure in described tank body 1, part liquid rapid vaporization, and gas-liquid separation, steam after gas-liquid separation is discharged by vapour outlet 3 through described silk screen 11, and described silk screen 11 blocks solid phase impurity and discharges with steam with liquid foam; Liquid after gas-liquid separation is finally being discharged by the discharge port 4 of bottom after the sieve plate 7 be crisscross arranged.In the course of the work, the pressure of described pressure controller 10 to described tank body 1 inside is measured, and regulates the opening degree of steam discharge motorized valve 12 according to measuring result, thus the pressure controlling tank body 1 inside keeps constant substantially; The flow of described flow director 8 to described feed-pipe 5 is measured, and adds according to measurement the opening degree overregulating charging motorized valve 13, makes the inlet amount of mud mixture substantially keep constant; Described fluid level controller 9 controls the opening degree of discharge motorized valve 14 according to the level condition of tank body 1 inside, thus makes the liquid in pipe remain on certain height, makes to form fluid-tight in tank body 1, stops gas to be discharged by discharge port 4 downwards.
Embodiment 2
The present embodiment provides a kind of mud flash tank, comprises, tank body 1, described tank body 1 is middle part is cylinder, two ends are the container of ellipsoidal head, and the temperature in described tank body 1 is 100 DEG C, and pressure is 0.5MPa, the mud temperature entering described tank body 1 is 160 DEG C, and pressure is 3.0MPa.
In the middle part of described tank body 1, be provided with opening for feed 2, described tank body 1 top is provided with vapour outlet 3, bottom described tank body 1, is provided with discharge port 4, described discharge port 4 is the funnel type pipeline expanded gradually from top to bottom.
Further, be also provided with feed-pipe 5, described feed-pipe 5 extends to the inside of described tank body 1 by opening for feed 2, and the part that described feed-pipe 5 is positioned at described tank body 1 is provided with 5 nozzles 6; The injection direction of each described nozzle 6 is arranged all down; In the present embodiment, described nozzle 6 to be spray angles the be conical nozzle of 90 °.
In described tank body 1, the top of described feed-pipe 5 is provided with silk screen 11, and in the present embodiment, described silk screen 11 is aluminium net, and its surface is provided with the epoxy resin corrosion protection coating that thickness is 150 μm.
The below of described nozzle 6 is also staggeredly equipped with 4 pieces of sieve plates 7, described sieve plate 7 is provided with the micropore porcelain layers of balls for filtering solid phase impurity.
Be communicated with the top of described tank body 1 in the present embodiment and be provided with blow-off line, described blow-off line is provided with steam discharge motorized valve 12, pressure controller 10 is connected with described steam discharge motorized valve 12, be communicated with the top of described tank body 1 while of described pressure controller 10 and arrange, be suitable for the pressure measuring described tank body 1 inside; Described feed-pipe 5 is provided with charging motorized valve 13, is connected with flow director 8 with described charging motorized valve 13, be connected with described feed-pipe 5 while of described flow director 8 and arrange, be suitable for the flow measuring described feed-pipe 5; Be communicated with described discharge port 4 and be provided with discharge nozzle, described discharge nozzle is provided with discharge motorized valve 14, be connected with fluid level controller 9 with the bottom of described discharge motorized valve 14 and described tank body 1.
The working process of the mud flash tank described in the present embodiment is: the mud mixture of High Temperature High Pressure is injected into the inside of tank body 1 by 5 nozzles 6 on described feed-pipe 5, described mud mixture is rapid decrease temperature and pressure in described tank body 1, part liquid rapid vaporization, and gas-liquid separation, steam after gas-liquid separation is discharged by vapour outlet 3 through described silk screen 11, and described silk screen 11 blocks solid phase impurity and discharges with steam with liquid foam; Liquid after gas-liquid separation is finally being discharged by the discharge port 4 of bottom after the sieve plate 7 be crisscross arranged.In the course of the work, the pressure of described pressure controller 10 to described tank body 1 inside is measured, and regulates the opening degree of steam discharge motorized valve 12 according to measuring result, thus the pressure controlling tank body 1 inside keeps constant substantially; The flow of described flow director 8 to described feed-pipe 5 is measured, and adds according to measurement the opening degree overregulating charging motorized valve 13, makes the inlet amount of mud mixture substantially keep constant; Described fluid level controller 9 controls the opening degree of discharge motorized valve 14 according to the level condition of tank body 1 inside, thus makes the liquid in pipe remain on certain height, makes to form fluid-tight in tank body 1, stops gas to be discharged by discharge port 4 downwards.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (8)
1. a mud flash tank, comprising:
Tank body (1), is provided with opening for feed (2) at the middle part of described tank body (1), and top is provided with vapour outlet (3), and bottom is provided with discharge port (4);
It is characterized in that, also be provided with feed-pipe (5), described feed-pipe (5) extends to the inside of described tank body (1) by opening for feed (2), and the part that described feed-pipe (5) is positioned at described tank body (1) is provided with multiple nozzle (6);
In described tank body (1) and the top being positioned at described feed-pipe (5) is provided with silk screen (11).
2. mud flash tank according to claim 1, it is characterized in that, the below of described nozzle (6) is also staggeredly equipped with multiple sieve plate (7), each described sieve plate (7) is horizontally disposed with, and each described sieve plate (7) is furnished with micropore porcelain layers of balls.
3. mud flash tank according to claim 1 and 2, is characterized in that, described nozzle (6) is the conical nozzle of spray angle 40 ° ~ 90 °, and the quantity of described nozzle (6) is more than or equal to 3.
4. mud flash tank according to claim 3, it is characterized in that, be communicated with the vapour outlet (3) of described tank body (1) and be provided with blow-off line, described blow-off line is provided with steam discharge motorized valve (12), pressure controller (10) is connected with described steam discharge motorized valve (12), be communicated with the top of described tank body (1) while of described pressure controller (10) and arrange, be suitable for measuring the inner pressure of described tank body (1).
5. mud flash tank according to claim 4, it is characterized in that, described feed-pipe (5) is provided with charging motorized valve (13), flow director (8) is connected with described charging motorized valve (13), be connected with described feed-pipe (5) while of described flow director (8) and arrange, be suitable for the flow measuring described feed-pipe (5).
6. mud flash tank according to claim 4, it is characterized in that, be communicated with described discharge port (4) and be provided with discharge nozzle, described discharge nozzle is provided with discharge motorized valve (14), is connected with fluid level controller (9) with the bottom of described discharge motorized valve (14) and described tank body (1).
7. mud flash tank according to claim 5, is characterized in that, described discharge port (4) is the funnel type pipeline expanded gradually from top to bottom.
8. mud flash tank according to claim 7, is characterized in that, described silk screen (11) is nickel screen or aluminium net, and surface is provided with epoxy resin corrosion protection coating, and described corrosion protection coating thickness is 100-150 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420762231.1U CN204369745U (en) | 2014-12-05 | 2014-12-05 | A kind of mud flash tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420762231.1U CN204369745U (en) | 2014-12-05 | 2014-12-05 | A kind of mud flash tank |
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| Publication Number | Publication Date |
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| CN204369745U true CN204369745U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420762231.1U Active CN204369745U (en) | 2014-12-05 | 2014-12-05 | A kind of mud flash tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214814A (en) * | 2015-10-29 | 2016-01-06 | 天紫环保装备制造（天津）有限公司 | Rubbish dodges the pressure release container of quick-fried equipment |
| CN106865946A (en) * | 2017-03-14 | 2017-06-20 | 江苏鑫泰岩土科技有限公司 | A kind of sludge at low temperature successive flash vaporization desiccation tower |
-
2014
- 2014-12-05 CN CN201420762231.1U patent/CN204369745U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214814A (en) * | 2015-10-29 | 2016-01-06 | 天紫环保装备制造（天津）有限公司 | Rubbish dodges the pressure release container of quick-fried equipment |
| CN106865946A (en) * | 2017-03-14 | 2017-06-20 | 江苏鑫泰岩土科技有限公司 | A kind of sludge at low temperature successive flash vaporization desiccation tower |
| CN106865946B (en) * | 2017-03-14 | 2018-04-06 | 江苏鑫泰岩土科技有限公司 | A kind of sludge at low temperature successive flash vaporization desiccation tower |
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