CN215947087U - Steam heating-based pretreatment system for industrial sludge - Google Patents
Steam heating-based pretreatment system for industrial sludge Download PDFInfo
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- CN215947087U CN215947087U CN202121085735.0U CN202121085735U CN215947087U CN 215947087 U CN215947087 U CN 215947087U CN 202121085735 U CN202121085735 U CN 202121085735U CN 215947087 U CN215947087 U CN 215947087U
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Abstract
The utility model discloses a pretreatment system for industrial sludge based on steam heating, which can improve sludge reduction efficiency for subsequent industrial sludge reduction treatment, avoid the problem of poor sludge fluidity in the sludge transmission process, obviously improve the sludge fluidity, has compact system structure, simple installation, can realize full-automatic operation of the system, is simple and convenient to operate, and can save more industrial sludge reduction operation cost.
Description
Technical Field
The utility model relates to the field of industrial sludge treatment, in particular to a pretreatment system for industrial sludge based on steam heating.
Background
With the development of industrialization in China, the treatment capacity of industrial wastewater is larger and larger, the discharge amount of industrial sludge generated along with the treatment capacity is larger and larger, most of industrial sludge belongs to dangerous waste according to the national records of dangerous waste, the cost of external disposal is high, and huge economic burden is brought to production enterprises. In addition, according to the laws and regulations of the environmental protection law of the people's republic of China, the environmental protection law of solid waste pollution of the people's republic of China, the pollution control standard of hazardous waste storage (GB18597-2001) and the like, the total emission amount of industrial hazardous waste of production enterprises has clear emission control indexes, and the productivity of the enterprises is limited.
Production enterprises mostly choose to reduce the water content of the dewatered sludge through mechanical filter pressing, so that the quality of the outward transported sludge is reduced. But the mechanical filter pressing dehydration can only remove most of free water, part of capillary combination water and surface adsorption water to reduce the water content of the sludge to 60～80 percent, the reduction effect on the dry basis of the sludge is not achieved, and the dry basis amount of the sludge is increased because chemical substances such as polyaluminium chloride or calcium hydroxide are added to modify the structure of the sludge. Therefore, a new sludge reduction technology is urgently needed, the sludge dewatering performance is improved, and meanwhile, the weight reduction of solid-phase organic matters is realized, so that the sludge treatment cost of an enterprise is comprehensively reduced by a sludge treatment end, and the enterprise capacity is released.
The existing sludge reduction technology mainly comprises chemical, physical and biological methods, and the traditional physical method has the defects of high energy consumption, low economic benefit and high requirement on equipment. The biological method has the defects of long microbial acclimation time, difficult strain screening, high enzyme cost, easy generation of secondary pollution and the like, is difficult to popularize and use in engineering, and can better solve the problems by a chemical method. The chemical method mainly comprises ozone oxidation, chlorine oxidation, Fenton oxidation, hot alkali method and the like, wherein the ozone oxidation method needs to be provided with an ozone generator due to the characteristic that ozone needs to be prepared for use at present, so that the equipment investment is large, and the chlorine oxidation method can generate carcinogens such as trichloromethane and the like, so that the effluent quality is poor, and the normal operation of a biochemical system is influenced. The Fenton oxidation and the hot alkali method have the problems of unstable decrement effect and the like.
Therefore, how to efficiently and stably realize the reduction of the industrial sludge and improve the sludge dewatering performance is always a non-negligible link in the industrial sludge treatment process. How to improve the flowing performance of the sludge while improving the reduction efficiency of the industrial sludge so as to facilitate the subsequent reduction treatment of the industrial sludge is a prerequisite for realizing the reduction of the industrial sludge efficiently and stably and improving the dewatering performance of the sludge, and therefore, a pretreatment system for improving the reduction efficiency of the industrial sludge and improving the flowing performance of the sludge is urgently needed.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model mainly aims to overcome the defects in the prior art and discloses a novel anti-counterfeiting method
A pretreatment system for industrial sludge based on steam heating comprises
PAM automatic dosing system for dosing, stirring and fluid delivery;
the sludge pump is connected with a sludge tank and a sludge thickener and is used for sending the sludge in the sludge tank into the sludge thickener;
the sludge thickener is used for receiving the medicament supplied by the PAM automatic dosing system and mixing the medicament with sludge, improving the concentration of the sludge and conveying the sludge;
the sludge heating storage tank receives the sludge with the concentration increased by the sludge thickener, heats and stirs the sludge in the tank;
and the PLC control cabinet controls the PAM automatic dosing system, the sludge thickener, the sludge heating storage tank and the sludge pump to operate.
Further, the sludge pump sets up two sets at least.
Further, the types of the sludge pumps are the same.
Further, the outlet of the sludge concentrator is positioned above the sludge heating storage tank.
Further, the mud heating storage tank includes the jar body and sets up this internal heating device of jar and agitating unit, jar body top sets up the opening that is used for receiving mud, utilizes heating device heats mud, and passes through agitating unit constantly stirs mud.
Further, a sampling port is arranged on one side of the tank body.
Further, the inside lining that sets up of jar body, the inside lining is enamel or glass steel scale.
Further, the heating device comprises a valve and a steam pipeline, the steam pipeline extends into the tank body, is connected with a steam source through the valve, and controls the on-off of steam through the valve.
Further, the steam line is made of carbon steel, stainless steel, or copper.
Further, the sludge heating storage tank also comprises a liquid level meter and a thermometer.
The utility model has the following beneficial effects:
the pretreatment system for improving the reduction efficiency and the flow property of the industrial sludge based on steam heating can improve the reduction efficiency of the sludge for subsequent reduction treatment of the industrial sludge, avoid the problem of poor sludge flow property in the sludge transmission process, obviously improve the flow property of the sludge, and has the advantages of compact structure, simple installation, full-automatic operation of the system, simple and convenient operation and more saving of the operation cost for reducing the industrial sludge.
Drawings
FIG. 1 is a schematic perspective view of a steam heating based pretreatment system for industrial sludge according to the present invention;
FIG. 2 is a top view of FIG. 1;
the reference numbers are as follows:
1. PAM automatic reagent feeding system, 2, sludge pump, 3, sludge thickener, 4, sludge heating storage tank, 5, PLC switch board, 41, tank body, 42, heating device, 43, agitating unit, 421, valve, 422, steam pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
A pretreatment system for industrial sludge based on steam heating, as shown in fig. 1-2, comprises a PAM automatic dosing system 1 for dosing, stirring and fluid delivery;
the sludge pump 2 is connected with a sludge tank (not shown) and a sludge thickener 3, and the sludge in the sludge tank is sent into the sludge thickener 3 through the sludge pump 2;
the sludge thickener 3 conveys the added medicament into the sludge thickener 3 through a PAM automatic medicament adding system to be mixed with the sludge; the concentration of the sludge is improved through a sludge thickener 3 and the sludge is conveyed;
the sludge heating storage tank 4 is used for receiving the sludge with the concentration increased by the sludge thickener 3, heating and stirring the sludge in the tank;
the PLC control cabinet 5, the PLC control cabinet 5 controls the PAM automatic medicine adding system 1, the sludge thickener 3, the sludge heating storage tank 4 and the sludge pump 2 to operate.
In one embodiment, as shown in fig. 1-2, two sets of sludge pumps 2 are provided, the two sets of sludge pumps 2 being in standby for each other; of course, when a large amount of sludge needs to be delivered, the two sets of sludge pumps 2 can be started simultaneously to deliver the sludge simultaneously. Preferably, the sludge pump 2 adopts the same model, so that the subsequent maintenance cost is reduced, and the like. In addition, the number of sludge pumps 2 can be increased according to actual needs.
In one embodiment, as shown in fig. 1-2, the outlet of the sludge concentrator 3 is located above the sludge heating tank. So that the sludge can directly fall into the sludge heating storage tank 4. Mechanical transmission structures are reduced, and equipment cost is reduced.
In one embodiment, as shown in fig. 1-2, the sludge heating storage tank 4 comprises a tank body 41, and a heating device 42 and a stirring device 43 arranged in the tank body 41, wherein an opening for receiving sludge is arranged at the top of the tank body 41, the sludge is heated by the heating device 42, and the sludge is continuously stirred by the stirring device 43.
In the above embodiment, as shown in fig. 1-2, the sampling port is provided on one side of the can body 41. Sampling detection is carried out on the sludge in the tank body 41 at any time through the sampling port so as to judge whether the sludge meets the pretreatment standard.
In the above embodiment, the tank body 41 is provided with an inner lining made of enamel, teflon or glass fiber reinforced plastic scale. So as to prevent the inner wall of the tank body 41 from being corroded by the sludge and prolong the service life of the tank body 41.
In the above embodiment, as shown in fig. 1-2, the heating device 42 includes a valve 421 and a steam line 422, the steam line 422 extends into the sludge heating storage tank 4, and the on-off of the steam is controlled by the valve 421. The valve 421 can be a pneumatic valve. Steam line 422 is made of carbon steel or stainless steel; copper materials can also be selected.
In the above embodiment, as shown in fig. 1-2, the sludge heating tank 4 further includes a level gauge and a thermometer. The sludge capacity in the tank body 41 is measured in real time through the liquid level meter, and then the working state of the front-end equipment is controlled according to the sludge capacity. The temperature of the sludge in the tank body 1 is monitored in real time through a thermometer so as to control the start and stop of the heating device 42.
The stirring device 43 is composed of a motor, a gear box and a stirring rod, and the motor drives the gear box to drive the stirring rod to rotate so as to stir the sludge.
The PAM automatic dosing system 1 is a complete set of equipment integrating dosing, stirring, liquid conveying and automatic control, and mainly comprises a solution tank, a stirrer, a metering pump, a liquid level meter, an electric control cabinet, a pipeline, a valve, a safety valve, a back pressure valve, a check valve, a pulsation damper, a pressure gauge, a Y-shaped filter and the like. The PAM automatic dosing system is connected with the sludge thickener, so that the sludge in the sludge tank can be continuously and stably concentrated by the sludge thickener. PAM automatic dosing systems are common devices and are not described in any greater detail herein.
When the sludge chemical feeder is used, sludge is conveyed into the sludge thickener 3 through the sludge pump 2, the chemical is automatically fed through the automatic chemical feeding system 1, the sludge is concentrated and then conveyed into the sludge heating storage tank 4 through the sludge thickener 3, the sludge is heated by the heating device 42, and meanwhile, the sludge is continuously stirred by the stirring device 43. After a period of time, sampling and detecting the sludge through the sampling port to judge whether the sludge meets the pretreatment standard or not.
The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the utility model; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the utility model.
Claims (9)
1. A pretreatment system for industrial sludge based on steam heating is characterized by comprising a PAM automatic dosing system, a PAM automatic dosing system and a PAM automatic dosing system, wherein the PAM automatic dosing system is used for dosing, stirring and fluid conveying;
the sludge pump is connected with a sludge tank and a sludge thickener and is used for sending the sludge in the sludge tank into the sludge thickener;
the sludge thickener is used for receiving the medicament supplied by the PAM automatic dosing system and mixing the medicament with sludge, improving the concentration of the sludge and conveying the sludge;
the sludge heating storage tank receives the sludge with the concentration increased by the sludge thickener, heats and stirs the sludge in the tank;
and the PLC control cabinet controls the PAM automatic dosing system, the sludge thickener, the sludge heating storage tank and the sludge pump to operate.
2. The steam heating-based pretreatment system for industrial sludge according to claim 1, wherein at least two sets of sludge pumps are provided.
3. The steam heating-based pretreatment system for industrial sludge according to claim 2, wherein the sludge pumps are of the same type and are backup to each other.
4. The steam heating-based pretreatment system for industrial sludge of claim 1, wherein an outlet of the sludge thickener is positioned above the sludge heating storage tank.
5. The pretreatment system for industrial sludge based on steam heating as claimed in claim 1, wherein the sludge heating storage tank comprises a tank body, and a heating device and a stirring device which are arranged in the tank body, the top of the tank body is provided with an opening for receiving sludge, the sludge is heated by the heating device, and the sludge is continuously stirred by the stirring device.
6. The pretreatment system for industrial sludge based on steam heating as claimed in claim 5, wherein a sampling port is provided at one side of the tank body.
7. The pretreatment system for industrial sludge based on steam heating as claimed in claim 5, wherein the heating device comprises a valve and a steam pipeline, the steam pipeline extends into the tank body, is connected with a steam source through the valve, and is used for controlling the on-off of steam.
8. The steam heating-based pretreatment system for industrial sludge of claim 7, wherein the steam line is made of carbon steel, stainless steel or copper.
9. The steam heating-based pretreatment system for industrial sludge according to claim 5, wherein the sludge heating storage tank further comprises a liquid level meter and a thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121085735.0U CN215947087U (en) | 2021-05-17 | 2021-05-17 | Steam heating-based pretreatment system for industrial sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121085735.0U CN215947087U (en) | 2021-05-17 | 2021-05-17 | Steam heating-based pretreatment system for industrial sludge |
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| Publication Number | Publication Date |
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| CN215947087U true CN215947087U (en) | 2022-03-04 |
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| CN202121085735.0U Active CN215947087U (en) | 2021-05-17 | 2021-05-17 | Steam heating-based pretreatment system for industrial sludge |
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2021
- 2021-05-17 CN CN202121085735.0U patent/CN215947087U/en active Active
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