CN109775945A - The wall-breaking method and its means for breaking walls of domestic sludge - Google Patents
The wall-breaking method and its means for breaking walls of domestic sludge Download PDFInfo
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- CN109775945A CN109775945A CN201910171485.3A CN201910171485A CN109775945A CN 109775945 A CN109775945 A CN 109775945A CN 201910171485 A CN201910171485 A CN 201910171485A CN 109775945 A CN109775945 A CN 109775945A
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- closed container
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- injection pipe
- domestic sludge
- breaking
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Abstract
The invention discloses a kind of wall-breaking method of domestic sludge and its means for breaking walls, comprising the following steps: (1) domestic sludge is contained in closed container；(2) compressed air is squeezed into its closed container, until pressure reaches 1.3-3.0Mpa, standing 5-8 minutes；(3) outlet of closed container was opened within 1-2 seconds time, the sludge inside closed container is quickly ejected by the large diameter pipeline of bottom by compressed air by force under high pressure；When being ejected due to sludge of the invention, pressure inside sludge colloid or cell wall also has little time to change, it is still in high pressure conditions, unexpected ambient pressure variation (arriving normal pressure), the serious unbalance caused stress, the effect of cell or colloid by internal pressure, come to burst open from the inside, cell wall rupture, original water lock is destructurized, and shell-broken effect theoretically can achieve 99% or more.
Description
Technical field
The present invention relates to field of environment protection, more particularly to the wall-breaking method and its means for breaking walls of a kind of domestic sludge.
Background technique
Domestic sludge is the by-product of sewage treatment plants water body purification processing, due to high-moisture percentage, to the place of terminal
It sets purification and brings biggish problem, sludge drying is just at more the key link, although and common drying can be more thorough
The removing moisture at bottom, but energy consumption is quite high.Mechanical dehydration method can remove a certain amount of moisture but effect is bad, main former
Because can not being squeezed out by mechanical dehydration since internal colloform texture and eucaryotic cell structure, inside have lockked a large amount of moisture
Come.
Drying is the method that sludge water content is evaporated by heat, and energy consumption is higher.General less use.Mechanical dehydration is
Using the molecular solids and the different size of principle of hydrone in sludge, by certain pressure, from certain microporous filters
In be filtered, moisture passes through, and solid matter is retained, but for the moisture in cell and colloid tissue, effect
It is poor.
Another is that drying agent is mixed in sludge, can be above-mentioned due to stronger hydrophily (water imbibition)
Molecular water in structure grabs the past, to achieve the purpose that reduce water content, is handled convenient for subsequent technique, but this
Drying agent will increase final processing capacity in large-scale production link higher cost.
As long as destroying the outer layer water shutoff wall of colloid or cell, internal water can be removed easily, so broken wall
It is more crucial.There is no the sludge of broken wall, natural drying effect is also poor, and the effect of moisture natural evaporation is particularly poor.The tradition skill
Defect existing for art is as follows:
1, mechanical high pressure to cell wall to abolish effect poor, be almost difficult to destroy；
2, heating broken wall energy consumption is too high；
3, by the strong absorptive of additive, the osmotic pressure inside and outside cell wall is caused to come broken wall dehydration, higher cost.
Summary of the invention
It is an object of the present invention to provide a kind of wall-breaking methods of the good domestic sludge of shell-broken effect.
It is another object of the present invention to provide a kind of means for breaking walls of domestic sludge that structure is simple.
To achieve the above object, the technical solution of the invention is as follows:
A kind of wall-breaking method of domestic sludge, comprising the following steps: (1) domestic sludge is contained in closed container；(2) to it
Compressed air is squeezed into closed container, until pressure reaches 1.3-3.0Mpa, standing 5-8 minutes；(3) within 1-2 seconds time
The outlet of closed container is opened, the sludge inside closed container is under high pressure by compressed air by force quickly by the big of bottom
Caliber pipe ejects.
In step (1), it is 75-80% that sludge, which loads containment vessel volume score,.
A kind of means for breaking walls of the domestic sludge of the wall-breaking method according to domestic sludge, including the injection of closed container, material
Pipe, knife valve, fair water cone；The inner end of the material injection pipe is connected in the material mouth of closed container bottom and material injection pipe
Lumen is connected to the accommodating cavity connection of closed container, and the outer end face of material injection pipe is equipped with feed inlet and pressurization mouth, knife valve peace
Inner end mounted in material injection pipe and the material mouth close to closed container, fair water cone are mounted in material injection pipe.
The knife valve is pneumatic knife valve or electric knives valve.
The material injection pipe is made of feed cavity and inlet and outlet piping；The inlet and outlet piping is connected under feed cavity
End, in horn-like, the diameter of inlet and outlet piping is 300-400mm, is pacified on inlet and outlet piping for the changeover portion of inlet and outlet piping and feed cavity
Knife valve is filled, fair water cone is mounted in the feed cavity of material injection pipe.
After adopting the above scheme, since the present invention is to discharge the principle of implosion suddenly using high pressure, domestic sludge is contained
Compressed air is squeezed into in closed container and into closed container, throws open closed container outlet, the dirt inside closed container
The large diameter pipeline that mud passes through closed container bottom under high pressure ejects, and in this process, sludge is due to ambient pressure
Moment changes, and the pressure inside colloid or cell wall also has little time to change, and is still in high pressure conditions, unexpected ambient pressure
Variation (arrives normal pressure), the serious unbalance caused stress, the effect of cell or colloid by internal pressure, thus from the inside
It bursts open and, cell wall rupture, original water lock is destructurized, and shell-broken effect theoretically can achieve 99% or more.Therefore this hair
It is bright to have the advantage that
1. the different sludge of water content is adapted to, generally in 65-95%；
2. energy consumption is less, without adding additional substance；
3. the warm, germ that liquidates has certain kill except effect；
4. the cost of subsequent dehydration can effectively shorten, improve efficiency.
The present invention is further illustrated in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of means for breaking walls of the present invention.
Specific embodiment
As shown in Figure 1, the present invention is a kind of means for breaking walls of domestic sludge, including closed container 1, material injection pipe 2, knife
Valve 3, fair water cone 4.
The material injection pipe 2 is made of feed cavity 21 and inlet and outlet piping 22；The inlet and outlet piping 22 be connected into
Expect the lower end of chamber 21, in horn-like, the diameter of inlet and outlet piping 22 is 300- for the changeover portion of inlet and outlet piping 22 and feed cavity 21
400mm, the upper surface of feed cavity 21 are equipped with feed inlet 23 and pressurization mouth 24.Knife valve 3, knife valve 3 are installed on inlet and outlet piping 22
It is usually in close state, fair water cone 4 is mounted in the feed cavity 21 of material injection pipe 2.
The inner end of inlet and outlet piping 22 on the material injection pipe 2 is connected in the material mouth of 1 bottom of closed container and object
The lumen of material injection pipe 2 is connected to the accommodating cavity connection of closed container 1.
The knife valve 3 is pneumatic knife valve or electric knives valve.
It should be understood that
The closed container 1 can be any shape, as long as can have enough rigidity and toughness, structural strength is adapted to height
Pressure and unexpected pressure change, general recommendations are that stainless steel plate or carbon steel steel plate are welded, it is proposed that are selected cylindrical.
Fair water cone 4 is mainly the reliable means for guaranteeing material and smoothly being sprayed by high pressure, can be selected according to the initial moisture content of sludge,
The main angle and size (with bottoms material injection pipe size, it is related that container dimensional is not pressurized on) for determining fair water cone.
Placing broken wall of the invention should be the biggish container of volume (or room), generally 50-80 extraordinarily pressure-volume
The volume size of device can receive the pressure release of the internal gas and sludge expanded suddenly.Sludge unification after broken wall is received
Collection is inside this closed container 1.
The present invention is a kind of wall-breaking method of domestic sludge, comprising the following steps:
(1) domestic sludge is contained in closed container, it is 75-80% that sludge, which loads containment vessel volume score, unsuitable too many；
(2) compressed air is squeezed into its closed container, until pressure reaches 1.3-3.0Mpa, standing 5-8 minutes；
(3) outlet of closed container was opened rapidly within 1-2 seconds time, that is, open container closure container exit rapidly
Knife valve, the sludge inside closed container under high pressure, by the compressed air of container inner upper bridge by force quickly the bottom of by
The large diameter pipeline in portion ejects, this process, and sludge is since the moment of ambient pressure changes, inside colloid or cell wall
Pressure also have little time to change, be still in high pressure conditions.
The working principle of the invention:
The present invention is to discharge the principle of implosion suddenly using high pressure, domestic sludge contain in closed container 1, then Xiang Qirong
Compressed air is squeezed into device, until pressure reaches 1.3Mpa or more, is then allowed to stand 5-8 minutes, is thrown open knife valve 3, then close
Sludge inside container 1 is closed under high pressure, by the compressed air of 1 inner upper bridge of closed container by force quickly by closed
The heavy caliber material injection pipe 2 of 1 bottom of container ejects, this process, and sludge is since the moment of ambient pressure changes, colloid
Or the pressure inside cell wall also has little time to change, and is still in high pressure conditions, unexpected ambient pressure changes and (arrives normal pressure),
The effect of the serious unbalance caused stress, cell or colloid by internal pressure comes, cell to burst open from the inside
Wall rupture, original water lock is destructurized, and shell-broken effect theoretically can achieve 99% or more.
By the sludge of broken wall, more moisture more can easily be removed by mechanical dehydration, dehydration equipment has folded
The equipment such as spiral shell filter press, dehydration efficiency at this time can be improved 2-3 times.
By the sludge of broken wall, carrying out aerobic fermentation also can be many fastly, and the substance that should be sludge can be more quick and logical
Gas material mixing and moisture exchange, the rupture of cell wall kill original anisotropic pathogenic microorganism, and high degree reduces
Adverse effect to aerobic fermentation bacterium.
The above is only the preferred embodiment of the present invention, therefore cannot be limited the scope of implementation of the present invention with this, i.e., according to
Equivalent changes and modifications made by scope of the present invention patent and description should still belong to the model that the invention patent covers
In enclosing.
Claims (5)
1. a kind of wall-breaking method of domestic sludge, which comprises the following steps: (1) domestic sludge is contained in closed
In container；(2) compressed air is squeezed into its closed container, until pressure reaches 1.3-3.0Mpa, standing 5-8 minutes；(3) exist
The outlet of closed container is opened in 1-2 seconds time, the sludge inside closed container is quick by force by compressed air under high pressure
Ejected by the large diameter pipeline of bottom.
2. the wall-breaking method of domestic sludge according to claim 1, it is characterised in that: in step (1), sludge filling is closed
Container volume score is 75-80%.
3. a kind of means for breaking walls of the domestic sludge of the wall-breaking method of domestic sludge according to claim 1, it is characterised in that:
Including closed container, material injection pipe, knife valve, fair water cone；The inner end of the material injection pipe is connected to closed container bottom
Material mouth on and the lumen of material injection pipe be connected to the accommodating cavity connection of closed container, the outer end face of material injection pipe is equipped with
Feed inlet and pressurization mouth, knife valve is mounted on the inner end of material injection pipe and the material mouth close to closed container, fair water cone are mounted on object
Expect in injection pipe.
4. the means for breaking walls of domestic sludge according to claim 3, it is characterised in that: the knife valve be pneumatic knife valve or
Electric knives valve.
5. the means for breaking walls of domestic sludge according to claim 3, it is characterised in that: the material injection pipe is by feeding
Chamber and inlet and outlet piping composition；The inlet and outlet piping is connected to the lower end of feed cavity, and the changeover portion of inlet and outlet piping and feed cavity is in
Horn-like, the diameter of inlet and outlet piping is 300-400mm, and knife valve is installed on inlet and outlet piping, and fair water cone is mounted on material injection pipe
Feed cavity in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910171485.3A CN109775945A (en) | 2019-03-07 | 2019-03-07 | The wall-breaking method and its means for breaking walls of domestic sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910171485.3A CN109775945A (en) | 2019-03-07 | 2019-03-07 | The wall-breaking method and its means for breaking walls of domestic sludge |
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| CN109775945A true CN109775945A (en) | 2019-05-21 |
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| CN201910171485.3A Pending CN109775945A (en) | 2019-03-07 | 2019-03-07 | The wall-breaking method and its means for breaking walls of domestic sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607987A (en) * | 2020-12-29 | 2021-04-06 | 吉林农业大学 | System for ecological enzyme preparation is used for mud decrement |
| CN115433614A (en) * | 2022-07-27 | 2022-12-06 | 田国玉 | Method for synthesizing industrial-grade composite biomass solid fuel from municipal sludge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004066057A (en) * | 2002-08-02 | 2004-03-04 | Showa Yotsukaichi Sekiyu Kk | Method of dehydrating sludge |
| DE102004058462A1 (en) * | 2004-09-03 | 2006-03-09 | Linde Ag | Process for the disintegration of sludges |
| CN103304118A (en) * | 2012-03-15 | 2013-09-18 | 李铀 | High-pressure digestion and blasting dehydration process of sludge |
| CN107118786A (en) * | 2017-05-05 | 2017-09-01 | 李苏卿 | For domestic sludge, the microwave cracking machine of stalk and microwave cracking method |
| CN108585392A (en) * | 2018-04-28 | 2018-09-28 | 重庆交大国科航科技有限公司 | A kind of high voltage relief formula Technology of Biochemical Sludge Conditioning method |
-
2019
- 2019-03-07 CN CN201910171485.3A patent/CN109775945A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004066057A (en) * | 2002-08-02 | 2004-03-04 | Showa Yotsukaichi Sekiyu Kk | Method of dehydrating sludge |
| DE102004058462A1 (en) * | 2004-09-03 | 2006-03-09 | Linde Ag | Process for the disintegration of sludges |
| CN103304118A (en) * | 2012-03-15 | 2013-09-18 | 李铀 | High-pressure digestion and blasting dehydration process of sludge |
| CN107118786A (en) * | 2017-05-05 | 2017-09-01 | 李苏卿 | For domestic sludge, the microwave cracking machine of stalk and microwave cracking method |
| CN108585392A (en) * | 2018-04-28 | 2018-09-28 | 重庆交大国科航科技有限公司 | A kind of high voltage relief formula Technology of Biochemical Sludge Conditioning method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607987A (en) * | 2020-12-29 | 2021-04-06 | 吉林农业大学 | System for ecological enzyme preparation is used for mud decrement |
| CN115433614A (en) * | 2022-07-27 | 2022-12-06 | 田国玉 | Method for synthesizing industrial-grade composite biomass solid fuel from municipal sludge |
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