CN203642202U - Sludge composite firing system - Google Patents
Sludge composite firing system Download PDFInfo
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- CN203642202U CN203642202U CN201320892135.4U CN201320892135U CN203642202U CN 203642202 U CN203642202 U CN 203642202U CN 201320892135 U CN201320892135 U CN 201320892135U CN 203642202 U CN203642202 U CN 203642202U
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- sludge
- mud
- gasification furnace
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- mixture burning
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Abstract
The utility model discloses a sludge composite firing system. A sludge stock bin with a stock bin cover conveys sludge to a sludge pipeline through a conveying device from the bottom of the sludge stock bin, the sludge pipeline is provided with a sludge pump for conveying the sludge to sludge feeding devices which are arranged on a gasifying furnace, the sludge stock bin is communicated with a waste gas pipeline, the waste gas pipeline exhausts waste gas in the sludge stock bin to the gasifying furnace through a gasifying furnace ventilator, and an incineration material discharging device is arranged at the bottom of the gasifying furnace. The sludge composite firing system can reduce exploitation of non-renewable natural resources, achieve recycling of resources and sustainable development of economy, completely degrade urban household garbage as well as process civil sludge, and solve the secondary pollution problem which may happens after sludge processing, waste residues generated by sludge incineration are used as the replacing raw material for cement production, and harmless, minimized and recycling sludge processing is completely achieved.
Description
Technical field
The utility model relates to the system of utilizing cement producing line to complete Treatment of Sludge.
Background technology
Along with China's rapid development of economy, environmental problem is day by day serious, and at present, China's town sewage plant mud year generation has reached 3,000 ten thousand tons, but most of mud is to transport outward and throw aside after simple dehydration, only has a little part to be disposed by specification.Mud after throwing aside contains in sewage approximately 50% pollutant, has the risk of polluted-water environment again, and produce foul odour simultaneously, multiply mosquitos and flies, and to a large amount of methane of environmental emission, the decades of times that its greenhouse effects are carbon dioxide.The secondary pollution problem causing thus has even been offset the achievement of pollution emission reduction to a certain extent, and the processing of sewage treatment plant's dewatered sludge can not be ignored with disposal.
Along with the development of urbanization process, the utilization of water resource and protection come into one's own gradually, and large amount of sewage treatment plant builds up like the mushrooms after rain.In municipal sewage treatment process, will inevitably produce a large amount of sewage sludges.Although city sewage and sludge can cause serious pollution, can carry out also recycling, reach the double effects of joint disposal and utilization.
In mud, contained organic matter is effective bioenergy, and the humus that organic substance decomposing in mud produces can be improved soil, avoids hardening, and in mud, abundant nitrogen, phosphorus, potassium etc. are plant and the indispensable nutrients of crop growth.Dry mud is a kind of low-calorie fuel, and average sewage sludge per ton can produce 16.65～20.93 million Jiao's heat.Nowadays increasing people has had more and more deep understanding to the fact of " tellurian all resources are all limited " this objective reality.Therefore, the processing disposal of sludge of sewage treatment plant and the combination of recycling sludge, will become the unique final outlet of city sewage and sludge.
The external Sludge Disposal Techniques extensively adopting can be summarized as three major types at present: 1, clay treatment, comprises agricultural sludge and be applied to forest or gardening; 2, separately or with the common landfill such as house refuse; 3, thermal treatment.
Owing to can using the factor such as universal of land area, processing cost, more and more stricter environmental standard and resource recycling policy, European Union member countries generally recognize that it is not a kind of sustainable development method that the landfill of mud is disposed, there has been formal or experimental restriction in many member states to the physical property of landfill mud, and this restriction is based on promoting the utilization of mud organic substance matter and the consideration of minimizing landfill yard methane gas and percolate to formulate.Also there is viewpoint to think that the thermal treatment of mud is a kind of solution that overcomes this restriction, but in the country that landfill mud organic substance total amount is limited, this is only a kind of remedial measure of short-term, therefore in the near future, Germany, France, Denmark and other country, may only have sludge burning ash residue is the sludge form that is suitable for landfill.
China's municipal sludge mainly has the large and bulky feature of amount of sludge, the sludge creation amount in a domestic city often exceedes the national mud total amount in Europe, and mainly concentrate on surrounding city, sanitary landfills will occupy the cities and towns periphery land resource of growing tension originally; The mud that simple city domestic sewage produces after processing, contain the nutrient such as abundant organic matter and a certain amount of N, P, K, through During High-Temperature Composting and biochemical treatment, can carry out soil utilization, utilize factor from economic factor and fertilizer efficiency, it is all a kind of method of disposal tallying with the national condition that the soil of mud utilizes particularly the agricultural of mud.Because part content of beary metal in sewage plant sludge approaches or exceeded pollutant control criterion in the agricultural mud of China, this has just partly limited the agricultural application of sewage plant sludge.Therefore,, in considering to adopt agricultural sludge part mud, must find other applicable mud.Because domestic sanitary sewage and industrial wastewater merge processing mostly, make the composition of municipal sludge very complicated, particularly the content of heavy metal and persistence organic pollutant is higher, and the method for compost can not be removed poisonous and harmful substance and easily cause secondary pollution.
It is very high that burning disposal subtracts appearance minimizing degree.The processing speed of burning and processing sludge is fast, and mud does not need long term storage, in processing procedure in mud all germ, pathogeny bodies all thoroughly killed, the oxidized decomposition of poisonous and hazardous organic remains.But the one-time investment of sludge incinerator is huge, energy consumption and running cost are all very high.In addition, sludge incineration may produce the pollutions such as waste gas, noise, heat and radiation, particularly, through producing the pernicious gases such as dioxin in the process of burn incompletely, also has certain technical difficulty aspect Air Pollution Control.
Utility model content
Technical problem to be solved in the utility model is to realize the sludge treating system of a kind of " innoxious, minimizing, resource ".
To achieve these goals, the technical solution adopted in the utility model is: mud mixture burning control system, the sludge storage bin bottom with feed bin lid is delivered to sludge pipe through conveying device by mud, mud is delivered to mud drawing-in device by the defeated sludge pump that is provided with of described sludge pipe, described mud drawing-in device is arranged on gasification furnace, described sludge storage bin is communicated with exhaust piping, described exhaust piping enters gasification furnace by gasification furnace ventilation blower by the waste gas in sludge storage bin, and described gasification furnace bottom is provided with incinerated matter discharger.
Described mud drawing-in device is provided with multiple, is evenly distributed in top of gasification furnace, and each described mud drawing-in device is connected with sludge pipe by mud arm, and is equipped with valve on described mud arm and sludge pipe.
Described gasification furnace is provided with broken coal feed system.
Described mud mixture burning control system is provided with controller, flow sensor flow signal on temperature signal, reception mud arm and the sludge pipe of temperature detection device in described controller reception gasification furnace, and output control signals to sludge pump, valve and broken coal feed system.
The discharge port of described sludge storage bin is provided with discharge chamber outward, described discharge chamber porch is provided with vehicle induction installation, described feed bin is covered with opener, and described vehicle induction installation output induced signal is to controller, and described controller outputs control signals to opener.
Described discharge chamber porch is provided with Weighing mechanism.
Described incinerated matter discharger comprises screw feed mechanism, ash conveyor, vibration screening mechanism and metal transporter and lime-ash transporter, described screw feed mechanism is connected with the incinerated matter outlet of gasification furnace bottom, the output of screw feed mechanism connects vibration screening mechanism through cooling conveyor, and two logistics outlets of described vibration screening mechanism lay respectively at metal transporter and lime-ash transporter top.
The utility model has the advantage of that this system can reduce the exploitation to non-renewable natural resources, realize the cycling and reutilization of resource and economic sustainable development; System can be processed municipal sludge in clearing up domestic waste completely, solve sludge treatment and may produce the problem of secondary pollution, the waste residue that sludge incineration is produced is as the alternative materials of manufacture of cement, realized " innoxious, minimizing, resource " of Treatment of Sludge completely.In addition this system contributes to promote recycling economy development application model, improves urban environment, is conducive to urban construction and goes on the optimum track of sustainable development, has good social benefit and environmental benefit.
Brief description of the drawings
Below the mark in content and figure that in the utility model description, every width accompanying drawing is expressed is briefly described:
Fig. 1 is mud mixture burning control system structural representation;
Mark in above-mentioned figure is: 1, gasification furnace; 2, feed bin lid; 3, sludge storage bin; 4, exhaust piping; 5, sludge pipe; 6, mud drawing-in device; 7, incinerated matter discharger; 8, discharge chamber; 9, Weighing mechanism.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, detailed description of the invention of the present utility model is as the effect of the mutual alignment between the shape of related each member, structure, each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, with help those skilled in the art to utility model of the present utility model conceive, technical scheme has more complete, accurate and deep understanding.
Mud multifuel combustion is by selecting rational feeding point and calculating suitable feeding capacity and directly municipal sludge is sent in gasification furnace and made municipal sludge and domestic waste together carry out gasification process.Other pernicious gases such as the dioxin producing with refuse gasification that utilizes that cement producing line produces sludge gasification are processed in the lump.The lime-ash that Treatment of Sludge produces is also secondary use the raw material that is used as manufacture of cement, finally reaches the object of municipal refuse, sewage and sludge zero discharge.
Mud mixture burning control system is provided with by one for storing the sludge storage bin 4 of mud, sludge storage bin adopts hermetically-sealed construction, its top has can be by the feed bin lid 2 of opener control opening, sludge storage bin 4 is arranged on below discharge chamber 8, discharge chamber 8 is the room of conveyance vehicle unloading mud, its porch is provided with Weighing mechanism 9, and is provided with the vehicle induction installation of controlling 2 opening and closing of feed bin lid.Domestic sludge transports into factory by mud transport vehicle, after Weighing mechanism 9 meterings, pours airtight sludge storage bin 4 into.
Sludge storage bin 4 tops are communicated with exhaust piping 5, this exhaust piping 5 enters gasification furnace 1 by gasification furnace 1 ventilation blower by the waste gas in sludge storage bin 4, utilize the draft of ventilation blower that the foul smell in sludge storage bin 4 is sent in gasification furnace and burnt, make feed bin interior in negative pressure state, prevent foul smell diffusion.
The mud withdrawing device (screw feed mechanism) of sludge storage bin 4 bottoms connects sludge pipe 5, on sludge pipe 5, is provided with sludge pump, and mud is delivered to mud drawing-in device 6, and mud drawing-in device 6 is arranged on gasification furnace 1, and mud is fed to gasification furnace 1.For guaranteeing that evenly feeding mud does not affect the combustion position in gasification furnace 1, mud drawing-in device 6 is provided with multiple, be evenly distributed in gasification furnace 1 top, each mud drawing-in device 6 is connected with sludge pipe 5 by mud arm, and be equipped with valve on mud arm and sludge pipe 5, the actual conditions that can move according to gasification furnace 1 like this, mud is sent in stove by top of gasification furnace different parts, every mud drawing-in device 6 feeds gasification furnace inside by certain amount by frequency control respectively by domestic sludge, domestic sludge enters in stove mixed with house refuse, gasification, burn.In order to ensure operating temperature in gasification furnace 1 and normal operation, combustion-supporting to feeding a certain amount of broken coal in stove by broken coal feed system.
The discharge duct at gasification furnace 1 top further burns the waste gas of burning away the refuse in stove with sludge creation and harmless treatment in sending into cement kiln dore furnace, the incombustible producing after rubbish and sludge incineration is discharged by the incinerated matter discharger 7 of gasification furnace 1 bottom, incinerated matter discharger 7 comprises screw feed mechanism, cooling conveyor, vibration screening mechanism, and metal conveyer belt and lime-ash conveyer belt, screw feed mechanism is connected with gasification furnace 1 bottom incinerated matter outlet, the output of screw feed mechanism connects vibration screening mechanism through cooling conveyor, two logistics outlets of vibration screening mechanism lay respectively at metal conveyer belt and lime-ash conveyer belt top, separating ferrum after cooling, non-ferrous metal recycling, remaining lime-ash is sent into cement kiln raw material system as raw material and is utilized.
For guaranteeing that gasification furnace 1 burns quality, mud mixture burning control system is provided with controller, flow sensor flow signal on temperature signal, reception mud arm and the sludge pipe 5 of this controller reception gasification furnace 1 interior temperature detection device, and output control signals to sludge pump, valve and broken coal feed system.For guaranteeing to control accurately, the interior temperature detection device of gasification furnace 1 is provided with multiple, respectively the corresponding gasification furnace internal temperature that gathers.
Based on above-mentioned mud mixture burning control system, the method for utilizing controller to control system is as follows:
Temperature detection device gathers respectively near the temperature each mud drawing-in device 6 and is delivered to controller, and controller is according to temperature control sludge pump, valve and broken coal feed system;
In addition, the signal that receives vehicle induction installation input when controller is for there being mud transport vehicle close, open feed bin lid 2, now Weighing mechanism 9 registration of vehicle weight, the signal that receives the input of vehicle induction installation when controller is that mud transport vehicle leaves, and closes feed bin lid 2, and again by Weighing mechanism 9 registration of vehicle weight, controller calculates unloading mud weight by twice weight difference, and is recorded in the memory of controller.
In sum, utilize existing cement production system multifuel combustion lignin-sludge, saved drying system, CIU and the exhaust gas purification system of general sludge disposal technology, handling process is succinct, has saved project investment; The lime-ash producing after sludge incineration is sent into cement raw material grinding system as raw material, takes full advantage of resource, has accomplished zero release of pollutant, has saved the soil for landfill; Mud and garbage multifuel combustion processing, reached the environment protecting same with garbage disposal.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (8)
1. mud mixture burning control system, it is characterized in that: the sludge storage bin bottom with feed bin lid is delivered to sludge pipe through conveying device by mud, mud is delivered to mud drawing-in device by the defeated sludge pump that is provided with of described sludge pipe, described mud drawing-in device is arranged on gasification furnace, described sludge storage bin is communicated with exhaust piping, described exhaust piping enters gasification furnace by gasification furnace ventilation blower by the waste gas in sludge storage bin, and described gasification furnace bottom is provided with incinerated matter discharger.
2. mud mixture burning control system according to claim 1, it is characterized in that: described mud drawing-in device is provided with multiple, be evenly distributed in top of gasification furnace, each described mud drawing-in device is connected with sludge pipe by mud arm, and is equipped with valve on described mud arm and sludge pipe.
3. mud mixture burning control system according to claim 2, is characterized in that: described gasification furnace is provided with broken coal feed system.
4. mud mixture burning control system according to claim 3, it is characterized in that: described mud mixture burning control system is provided with controller, flow sensor flow signal on temperature signal, reception mud arm and the sludge pipe of temperature detection device in described controller reception gasification furnace, and output control signals to sludge pump, valve and broken coal feed system.
5. mud mixture burning control system according to claim 4, is characterized in that: the interior temperature detection device of described gasification furnace is provided with multiple, gathers respectively near the temperature of each mud drawing-in device.
6. mud mixture burning control system according to claim 5, it is characterized in that: the discharge port of described sludge storage bin is provided with discharge chamber outward, described discharge chamber porch is provided with vehicle induction installation, described feed bin is covered with opener, described vehicle induction installation output induced signal is to controller, and described controller outputs control signals to opener.
7. mud mixture burning control system according to claim 6, is characterized in that: described discharge chamber porch is provided with Weighing mechanism.
8. mud mixture burning control system according to claim 6, it is characterized in that: described incinerated matter discharger comprises screw feed mechanism, ash conveyor, vibration screening mechanism and metal transporter and lime-ash transporter, described screw feed mechanism is connected with the incinerated matter outlet of gasification furnace bottom, the output of screw feed mechanism connects vibration screening mechanism through ash conveyor, and two logistics outlets of described vibration screening mechanism lay respectively at metal transporter and lime-ash transporter top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892135.4U CN203642202U (en) | 2013-12-31 | 2013-12-31 | Sludge composite firing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892135.4U CN203642202U (en) | 2013-12-31 | 2013-12-31 | Sludge composite firing system |
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| Publication Number | Publication Date |
|---|---|
| CN203642202U true CN203642202U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892135.4U Withdrawn - After Issue CN203642202U (en) | 2013-12-31 | 2013-12-31 | Sludge composite firing system |
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| CN (1) | CN203642202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759272A (en) * | 2013-12-31 | 2014-04-30 | 安徽海螺川崎工程有限公司 | Sludge co-firing system and control method thereof |
-
2013
- 2013-12-31 CN CN201320892135.4U patent/CN203642202U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759272A (en) * | 2013-12-31 | 2014-04-30 | 安徽海螺川崎工程有限公司 | Sludge co-firing system and control method thereof |
| CN103759272B (en) * | 2013-12-31 | 2015-12-30 | 安徽海螺川崎工程有限公司 | Mud mixture burning control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20151230 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |