CN214781448U - Reduce equipment of mud moisture content - Google Patents
Reduce equipment of mud moisture content Download PDFInfo
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- CN214781448U CN214781448U CN202121146502.7U CN202121146502U CN214781448U CN 214781448 U CN214781448 U CN 214781448U CN 202121146502 U CN202121146502 U CN 202121146502U CN 214781448 U CN214781448 U CN 214781448U
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Abstract
The utility model relates to a device for reducing the water content of sludge, which effectively solves the processing problem of reducing the water content of sludge with high efficiency, low energy consumption and innocuity, a container can is arranged on a bracket, a sealing cover is arranged at the upper opening part of the container can, the side surface of the lower part is provided with a sludge outlet, the center of the inner bottom is provided with a spiral stirring blade, the rotating rod of the spiral stirring blade extends out of the bottom of the container can and is connected with a motor shaft arranged on the bracket through a coupling, the side surface of the lower part of the container can is provided with a sludge inlet pipe which is communicated with a sludge pump on a sludge pipeline, a filter screen is arranged above the sludge surface in the container can, a water absorbing resin layer is arranged on the filter screen, a circulating pipeline communicated with the upper part in the container can is arranged on the sealing cover, the lower part of the circulating pipeline is connected with an air inlet pipe orifice of the lower part of the container can, a pressure reducing valve is arranged on the circulating pipeline close to the sealing cover, the utility model has novel and unique structure, easy installation and use, flexibility and convenience, good use effect, and contribution to reducing secondary environmental pollution and recycling resources.
Description
Technical Field
The utility model relates to a sludge treatment technical field, especially an equipment of reduction mud moisture content.
Background
With the development of economy in China and the increasing improvement of the living standard of people, a large amount of sewage is generated every year, and a large amount of sludge with different properties and the water content of 95-99.9 percent is generated in each stage of sewage treatment. At present, the main treatment technologies of sludge include land landfill, composting, land utilization, sludge incineration and the like. The sludge treatment mode mainly adopts landfill, and partial sludge can be used for agricultural production, so that the related standard of sludge treatment requires that the subsequent treatment and utilization can be carried out when the water content of the sludge is below 60 percent, but the water content of the sludge can be controlled to be about 80 percent after the mechanical dehydration treatment, which is far from the sludge treatment requirement of China, and therefore, the sludge needs to be further deeply dehydrated. At present, chemical and physical methods are generally adopted to pretreat sludge to improve the dehydration performance of the sludge, for example, a large amount of macromolecular dehydration flocculant is added to improve the sludge settling performance by utilizing the effects of adsorption, bridging and the like, a certain mechanical pressure is applied to remove part of free water and the like, but the dehydration effect is still not ideal, the dehydration cost and energy consumption are increased, and the problems of secondary pollution and the like are caused.
Although various devices for reducing the water content of the sludge exist, due to structural problems, the use of the devices is not satisfactory, and particularly, the treatment for reducing the water content of the sludge in a harmless manner with high efficiency and low energy consumption cannot be really realized, so that the technical problem of how to reduce the water content of the sludge in a high-efficiency and low-energy solution to realize the harmless treatment needs to be carefully solved.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming the defects of the prior art, the utility model aims to provide a device for reducing the water content of sludge, which can effectively solve the treatment problems of reducing the water content of sludge, such as high efficiency, low energy consumption and harmlessness.
The utility model provides a technical scheme, a reduce equipment of mud moisture content, including container tank, support, agitating unit and vacuum pump, the container tank is adorned on the support, and the sealed lid that can open is equipped with to the container tank upper mouth portion, is equipped with sealed mud export on the lower part side of container tank, and the bottom center has put spiral stirring sword leaf in the container tank, and the dwang of spiral stirring sword leaf stretches out the container tank bottom, and the motor shaft that puts on the support is in the same place through the coupling joint, constitutes agitating unit; a sludge inlet pipe is arranged on the side surface of the lower part of the container tank and is communicated with an outlet of a sludge pump (B) on the sludge pipeline, a filter screen is arranged above the sludge surface in the container tank, a water-absorbing resin layer is arranged on the filter screen, a circulating pipeline communicated with the upper part in the container tank is arranged on a sealing cover, a lower air outlet of the circulating pipeline is communicated with an air inlet pipe opening on the side surface of the lower part of the container tank, a pressure reducing valve is arranged on the circulating pipeline close to the sealing cover, a third regulating valve is arranged on the circulating pipeline close to the air inlet pipe opening on the side surface of the lower part of the container tank, a first regulating valve is arranged on the circulating pipeline between the pressure reducing valve and the third regulating valve, a vacuum pump is arranged on the circulating pipeline close to the first regulating valve between the third regulating valve and the first regulating valve, an outlet of the vacuum pump is respectively communicated with a second regulating valve on the waste gas discharge pipeline and a third regulating valve arranged on the circulating pipeline through a tee joint, the circulating pipeline and the pressure reducing valve, the first regulating valve, the vacuum pump and the third regulating valve which are arranged on the circulating pipeline form a gas circulating structure, a water jacket for heating is arranged outside the container tank, and the temperature in the container tank is regulated by circulating heat medium in the water jacket (known technology).
The utility model discloses novel structure is unique, easily installs and uses, and is nimble convenient, excellent in use effect, can effectively improve mud innocent treatment efficiency, and the energy consumption is low, easily carries out the scale chemical treatment, is favorable to alleviateing environmental secondary pollution and to the recycle of resource, and economy and social are showing.
Drawings
Fig. 1 is a front view of the structure of the present invention (the container body is partially cut open).
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in figure 1, the utility model relates to a device for reducing the water content of sludge, which comprises a container tank, a support, a stirring device and a vacuum pump, wherein the container tank 10 is arranged on the support 1, the upper opening part of the container tank is provided with an openable sealing cover 12, the side surface of the lower part of the container tank is provided with a sealed sludge outlet 13, the center of the bottom in the container tank is provided with a spiral stirring blade 6, the rotating rod of the spiral stirring blade 6 extends out of the bottom of the container tank and is connected with a motor shaft arranged on the support through a coupling to form the stirring device; a sludge inlet pipe is arranged on the side surface of the lower part of the container tank and is communicated with an outlet of a sludge pump 9 on the sludge pipeline, a filter screen 5 is arranged above the sludge surface in the container tank, a water absorbent resin layer 5-1 is arranged on the filter screen, a circulating pipeline communicated with the upper part in the container tank is arranged on a sealing cover 12, an air outlet at the lower part of the circulating pipeline is communicated with an air inlet pipe opening on the side surface of the lower part of the container tank, a pressure reducing valve 2 is arranged on the circulating pipeline close to the sealing cover 12, a third adjusting valve 3-3 is arranged on the circulating pipeline close to the air inlet pipe opening on the side surface of the lower part of the container tank 10, a first adjusting valve 3-1 is arranged on the circulating pipeline between the pressure reducing valve 2 and the third adjusting valve 3-3, a vacuum pump 4 is arranged on the circulating pipeline between the third adjusting valve 3-3 and the first adjusting valve 3-1 and close to the first adjusting valve 3-1, the outlet of the vacuum pump 4 is respectively communicated with a second regulating valve 3-2 on the waste gas discharge pipeline and a third regulating valve 3-3 arranged on the circulating pipeline through a tee joint 14, the circulating pipeline and a pressure reducing valve 2, a first regulating valve 3-1, the vacuum pump 4 and the third regulating valve 3-3 arranged on the circulating pipeline form a gas circulating structure, a water jacket 8 for heating is arranged outside the container tank, and the temperature in the container tank is regulated through a circulating heat medium in the water jacket (known technology).
In order to ensure the use effect and convenient use, the bracket 1 is a square frame type bracket body formed by a cross brace and a vertical support, and the lower part of the supporting leg of the bracket body is provided with a movable wheel 1-1, so that the equipment can be conveniently and flexibly moved;
the container tank is a hollow round body made of metal or engineering plastics, and the bottom of the container tank is a convex arc surface;
the sealing cover 12 and the container 10 are assembled together through a sealing ring to form a sealing structure between the sealing cover and the container;
a sealing ring is arranged at the contact position of the rotating rod of the spiral stirring blade 6 and the bottom of the container tank to form a sealing rotating structure between the rotating rod and the container tank;
the two ends of the circulating pipeline are respectively connected with an air outlet pipe on the sealing cover 12 and an air inlet pipe at the lower part of the container tank through flanges, and an outlet pipeline of the sludge pump 9 is connected with a sludge inlet pipeline of the container tank 10 through flanges to form a structure convenient to disassemble and assemble.
It should be noted that the above mentioned embodiments are only examples, and are not intended to limit the scope of the present invention, and all the technical solutions essentially the same as the present invention made by using equivalent or equivalent substitution means belong to the scope of the present invention.
The working condition of the utility model is that the sludge with the water content of about 80 percent is sent into the container tank 10 through the sludge pump 9, the gas in the container tank 10 is pumped out through the vacuum pump 4 of the circulating pipeline, so that the inside of the container tank 10 is in a vacuum negative pressure state, thereby the boiling point of the water in the sludge is reduced, the inside of the container tank 10 is heated through the heating medium (medium) of the water jacket in the process, and because the water-containing sludge in the tank is in a negative pressure state, the boiling point is lower, so that the interstitial water and the capillary combination water are easier to be separated;
in addition, as the middle layer in the container tank 10 is provided with the filter screen, and a certain amount of water-absorbing resin is added on the filter screen, in the process of heating and vacuumizing at the same time, water vapor is also pumped out to an air pumping hole above the device, and is absorbed by the water-absorbing resin after passing through the filter screen;
an air inlet is arranged above a sludge feeding hole on the side surface of the lower part of the container tank 10 and is connected with a vacuum pump through a circulating pipeline to form an air circulating system, so that the interior of the container tank is kept in a constant pressure state after the interior of the container tank reaches a certain pressure intensity, and the air circulating system enables the overall airflow direction in the container tank to be from bottom to top, thereby being beneficial to taking out water vapor generated at the lower layer of the container tank upwards, passing through a filter screen and being adsorbed by water-absorbent resin;
the stirring device with the spiral blade is arranged at the bottom of the container tank, so that the sludge is heated and uniformly pressed, the uniform dehydration is ensured, the dehydration efficiency of the sludge in the device is improved, the reaction lasts for about 5-10min after the constant pressure state is achieved in the container tank, the water content of the sludge is reduced to below 50%, and the stirring can be stopped.
After the dehydration work in the container jar is accomplished, at first need make the container jar in resume normal pressure state, set up relief pressure valve 2 at the container jar top, after the dehydration work in the container jar, open sealed lid 12, can clear out the water-absorbing resin after absorbing water and concentrate dehydration and recycle, open the sealed lid of mud export 13, the manual work is clear out dry mud.
The second adjusting valve 3-2 is arranged at the exhaust port of the vacuum pump 4, when the vacuum pump starts to work, the second adjusting valve 3-2 is firstly opened, the third adjusting valve 3-3 is closed, the pumped waste gas is discharged from the waste gas collecting device through the second adjusting valve 3-2 to be treated, the pollution to the atmosphere is prevented, when the pressure in the container tank is reduced, the second adjusting valve 3-2 can be closed, the third adjusting valve 3-3 is opened, the waste water is pumped back to the container tank through the circulating pipeline, and the constant pressure state is kept in the container tank, so that the sludge treatment efficiency is improved.
The main purpose of arranging the air inlet above the sludge feeding hole is that in the process of air circulation in the container tank, blown air can more effectively drive air above the sludge to flow and pass through the filter screen and the water-absorbent resin from bottom to top.
It can be seen from the foregoing that, the utility model discloses a put into sealing device with mud, the evacuation heating makes it be in under the negative pressure high temperature state, and the boiling point step-down of negative pressure state aquatic is deviate from in mud more easily, collects the water that deviates from in order to avoid handling after the recovery normal pressure state during water backward flow to mud to concentrate collection processing to gases such as the foul smell that the in-process produced, organic waste gas, reasonable accomplish high efficiency, harmless with sludge dewatering. Compared with the prior art, the method overcomes the defects of high energy consumption, high cost, long treatment period and the like of the existing equipment for sludge treatment, is easy for large-scale treatment according to the design scale, and is beneficial to reducing secondary environmental pollution and recycling resources. Through the test of field application, the water content of the sludge is reduced from 80% to below 40%, the reduction target is achieved, the requirement on the heating temperature of equipment is not high, the heating temperature is 40-50 ℃, the low energy consumption target is achieved, and the economic and social benefits are remarkable.
Claims (6)
1. The equipment for reducing the water content of the sludge comprises a container tank, a support, a stirring device and a vacuum pump, and is characterized in that the container tank (10) is arranged on the support (1), an openable sealing cover (12) is arranged at the upper opening part of the container tank, a sealed sludge outlet (13) is arranged on the side surface of the lower part of the container tank, a spiral stirring blade (6) is arranged at the center of the bottom in the container tank, a rotating rod of the spiral stirring blade (6) extends out of the bottom of the container tank, and is connected with a motor shaft arranged on the support through a coupling to form the stirring device; a sludge inlet pipe is arranged on the side surface of the lower part of the container tank and is communicated with an outlet of a sludge pump (9) on the sludge pipeline, a filter screen (5) is arranged above the sludge surface in the container tank, a water absorbent resin layer (5-1) is arranged on the filter screen, a circulating pipeline communicated with the upper part in the container tank is arranged on a sealing cover (12), an air outlet at the lower part of the circulating pipeline is communicated with an air inlet pipe opening on the side surface of the lower part of the container tank, a pressure reducing valve (2) is arranged on the circulating pipeline close to the sealing cover (12), a third adjusting valve (3-3) is arranged on the circulating pipeline close to the air inlet pipe opening on the side surface of the lower part of the container tank (10), a first adjusting valve (3-1) is arranged on the circulating pipeline between the pressure reducing valve (2) and the third adjusting valve (3-3), and a vacuum pump (4) is arranged on the circulating pipeline between the third adjusting valve (3-3) and the first adjusting valve (3-1) and close to the first adjusting valve (3-1) An outlet of the vacuum pump (4) is respectively communicated with a second regulating valve (3-2) on the waste gas discharge pipeline and a third regulating valve (3-3) arranged on the circulating pipeline through a tee joint (14), the circulating pipeline and a pressure reducing valve (2) arranged on the circulating pipeline, the first regulating valve (3-1), the vacuum pump (4) and the third regulating valve (3-3) form a gas circulating structure, a water jacket (8) for heating is arranged outside the container tank, and the temperature in the container tank is regulated through a circulating heat medium in the water jacket.
2. The equipment for reducing the water content of the sludge according to claim 1, wherein the support (1) is a square frame type support body consisting of a cross brace and a vertical support, and moving wheels (1-1) are arranged at the lower parts of the support legs of the support body.
3. The apparatus for reducing the water content of sludge according to claim 1, wherein the container tank is a hollow round body made of metal or engineering plastics, and the bottom of the container tank is an arc surface protruding outwards.
4. The apparatus for reducing the water content of sludge according to claim 1, wherein the sealing cover (12) and the container tank (10) are assembled together through a sealing ring to form a sealing structure between the sealing cover and the container tank.
5. The equipment for reducing the water content of the sludge according to claim 1, wherein a sealing ring is arranged at the contact position of a rotating rod of the spiral stirring blade (6) and the bottom of the container tank to form a sealing rotating structure between the rotating rod and the container tank.
6. The equipment for reducing the water content of the sludge according to claim 1, wherein two ends of the circulating pipeline are respectively connected with an air outlet pipe on the sealing cover (12) and an air inlet pipe at the lower part of the container tank through flanges, and an outlet pipeline of the sludge pump (9) is connected with a sludge inlet pipeline of the container tank (10) through flanges to form a structure convenient to disassemble and assemble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121146502.7U CN214781448U (en) | 2021-05-26 | 2021-05-26 | Reduce equipment of mud moisture content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121146502.7U CN214781448U (en) | 2021-05-26 | 2021-05-26 | Reduce equipment of mud moisture content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214781448U true CN214781448U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121146502.7U Active CN214781448U (en) | 2021-05-26 | 2021-05-26 | Reduce equipment of mud moisture content |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214781448U (en) |
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2021
- 2021-05-26 CN CN202121146502.7U patent/CN214781448U/en active Active
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