CN219991391U - Printing and dyeing mill sludge and building waste sludge recycling combination system - Google Patents
Printing and dyeing mill sludge and building waste sludge recycling combination system Download PDFInfo
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- CN219991391U CN219991391U CN202320497876.6U CN202320497876U CN219991391U CN 219991391 U CN219991391 U CN 219991391U CN 202320497876 U CN202320497876 U CN 202320497876U CN 219991391 U CN219991391 U CN 219991391U
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- soil
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- 239000010802 sludge Substances 0.000 title claims abstract description 63
- 238000004043 dyeing Methods 0.000 title claims abstract description 41
- 238000007639 printing Methods 0.000 title claims abstract description 39
- 239000002699 waste material Substances 0.000 title claims abstract description 25
- 238000004064 recycling Methods 0.000 title claims abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 45
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 31
- 238000002156 mixing Methods 0.000 claims abstract description 30
- 239000010881 fly ash Substances 0.000 claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims abstract description 19
- 238000005189 flocculation Methods 0.000 claims abstract description 13
- 230000016615 flocculation Effects 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 239000002918 waste heat Substances 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims description 32
- 238000001816 cooling Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 11
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 11
- 239000004571 lime Substances 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 239000003381 stabilizer Substances 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 238000011284 combination treatment Methods 0.000 abstract description 2
- 238000011282 treatment Methods 0.000 description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 238000011085 pressure filtration Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to a printing and dyeing factory sludge and building waste sludge recycling combination system which comprises a printing and dyeing sludge tank, an incineration system, a heavy metal removal tank, a building waste sludge tank, a flocculation tank, a filter pressing device, a dewatering soil storage yard and mixing equipment, wherein the heavy metal removal tank is arranged on the printing and dyeing factory sludge tank; the printing and dyeing sludge tank is connected with an incineration system, waste heat generated by the incineration system is conveyed to a dewatered soil dump, and generated fly ash is conveyed to a heavy metal removal tank; the building waste mud pool, the flocculation pool, the filter pressing device, the dewatering soil storage yard and the mixing equipment are sequentially connected, the mixing equipment is connected with the heavy metal removal pool, and the mixing equipment outputs mud to dry stabilized soil; the advantages are that: the method realizes the recycling combination treatment of the sludge of the printing and dyeing factory and the waste sludge of the building, uses the fly ash produced by burning the printing and dyeing sludge as the curing agent admixture of the sludge dehydrated soil, and simultaneously utilizes the waste heat produced by burning the printing and dyeing sludge to dry the sludge dehydrated soil, thereby effectively solving the problems that the fly ash is difficult to treat and the dehydrated soil is difficult to dry.
Description
Technical Field
The utility model relates to the field of slurry regeneration treatment, in particular to a recycling combination system of printing and dyeing mill sludge and building waste slurry.
Background
Along with the acceleration of the urban process in China, the production of dehydrated sludge in a printing and dyeing mill is increased, the original landfill treatment mode of the sludge in the printing and dyeing mill can lead to the increasingly shortage of land resources, and meanwhile, the sludge in the printing and dyeing mill contains heavy metals and has the danger of polluting soil and water. With the development of incineration disposal technology, an effective reduction method is provided for printing and dyeing sludge with higher organic matter content, but fly ash (about 3 percent of the total amount) containing harmful substances such as dioxin, heavy metals and the like is generated in the incineration process, and if the fly ash is improperly disposed, the damage to the surrounding environment is caused. In addition, the disposal cost of the printing and dyeing sludge reaches 3000 yuan/ton, and the disposal cost of the fly ash reaches 4000 yuan/ton.
The recycling application of the building waste mud is that the building waste mud is dehydrated through flocculation and pressure filtration to obtain dehydrated soil, and then a curing agent is added to stabilize the soil, so that the road performance is achieved, and the purpose of recycling application is realized. However, in the process, the water content of the pressure filtration dehydrated soil reaches about 30%, namely the dehydration limit is reached, the optimal water content required for stabilizing the soil is 18% -22%, and the required precipitation difference is usually realized by a method of airing or adding quicklime, which is time-consuming and uneconomical.
The main components of the printing and dyeing sludge are organic matters such as polyester, cotton threads and the like, the water content reaches 60-70%, but the heat value can reach 2000kcal/kg, meanwhile, fly ash generated by burning the printing and dyeing sludge contains substances such as silica, calcium oxide, ferric oxide and the like, and the main components of the main components are substances such as silica, calcium oxide, ferric oxide and the like.
If the treatment of the printing and dyeing sludge and the treatment of the building waste slurry can be combined, the problems that the fly ash is difficult to treat and the drying of the dehydrated soil can be effectively solved.
Based on this, the present application is hereby proposed.
Disclosure of Invention
The utility model aims to provide a recycling combination system of printing and dyeing mill sludge and building waste sludge.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
a system for recycling and combining printing and dyeing factory sludge and building waste sludge comprises a printing and dyeing sludge tank, a crusher, an incineration system, a heavy metal removal tank, a building waste sludge tank, a flocculation tank, a filter pressing device, a dewatering soil storage yard, mixing equipment and a sludge drying stabilized soil storage yard;
the printing and dyeing sludge tank is connected with the input end of the crusher through a conveying device, the output end of the crusher is connected with the input end of the incineration system through a conveying device, waste heat generated by the incineration system is conveyed to a dewatered soil dump through a pipeline, fly ash generated by the incineration system is conveyed to the heavy metal removal tank through the conveying device, and a stabilizer storage tank capable of conveying a stabilizer to the heavy metal removal tank and a heavy metal storage tank for receiving heavy metal are arranged on the heavy metal removal tank side;
the waste slurry pond of building is connected with the flocculation pond through conveyor, and the flocculation pond is connected with filter-pressing device's input through conveyor, and filter-pressing device's output is connected the soil stack that dewaters, the soil stack that dewaters is connected with mixing equipment through conveyor, is equipped with curing agent spike conveyor between mixing equipment and the heavy metal removal pond, and one side of mixing equipment is equipped with the curing agent storage tank that can carry the curing agent to mixing equipment, and mixing equipment's output passes through conveyor and is connected with mud desiccation stabilized soil stack.
Further, the incineration system comprises a preheating chamber, a combustion chamber, a cooling chamber, a secondary combustion chamber, a water cooling tower, a lime absorption tower and a cloth bag filter, wherein the input end of the preheating chamber is connected with the output end of the crusher, the tail gas output end of the preheating chamber is connected with the input end of the secondary combustion chamber, the preheating product output end of the preheating chamber is connected with the input end of the combustion chamber, the output end of the secondary combustion chamber is connected with the input end of the water cooling tower, the cooling product output end of the water cooling tower is connected with the input end of the lime absorption tower, the fly ash output end of the water cooling tower is used for outputting fly ash, the output end of the lime absorption tower is connected with the input end of the cloth bag filter, one output end of the cloth bag filter is used for outputting tail gas, the waste heat output end of the combustion chamber is connected with a dehydrated soil heap, the combustion product output end of the combustion chamber is connected with the input end of the cooling chamber, and the output end of the cooling chamber is used for outputting the fly ash.
The utility model has the advantages that: the method realizes the recycling combination treatment of the sludge of the printing and dyeing factory and the waste sludge of the building, uses the fly ash produced by burning the printing and dyeing sludge as the curing agent admixture of the sludge dehydrated soil, and simultaneously utilizes the waste heat produced by burning the printing and dyeing sludge to dry the sludge dehydrated soil, thereby effectively solving the problems that the fly ash is difficult to treat and the dehydrated soil is difficult to dry.
Drawings
FIG. 1 is a schematic flow chart of a recycling combination process of the printing and dyeing mill sludge and the building waste sludge in an embodiment;
FIG. 2 is a schematic diagram of the system for recycling combination of dye house sludge and construction waste sludge in an embodiment.
Detailed Description
The present utility model is described in further detail below with reference to examples.
The embodiment provides a recycling combination process and system of printing and dyeing factory sludge and building waste sludge, as shown in figure 1, wherein the system comprises a printing and dyeing sludge tank, a crusher, an incineration system, a heavy metal removal tank, a building waste sludge tank, a flocculation tank, a filter pressing device, a dewatering soil storage yard, mixing equipment and a sludge drying stabilized soil storage yard; the printing and dyeing sludge tank is connected with the input end of the crusher through a conveying device, the output end of the crusher is connected with the input end of the incineration system through a conveying device, waste heat generated by the incineration system is conveyed to a dewatered soil dump through a pipeline, fly ash generated by the incineration system is conveyed to the heavy metal removal tank through the conveying device, and a stabilizer storage tank capable of conveying a stabilizer to the heavy metal removal tank and a heavy metal storage tank for receiving heavy metal are arranged on the heavy metal removal tank side; the waste slurry pond of building is connected with the flocculation pond through conveyor, and the flocculation pond is connected with filter-pressing device's input through conveyor, and filter-pressing device's output is connected the soil stack that dewaters, the soil stack that dewaters is connected with mixing equipment through conveyor, is equipped with curing agent spike conveyor between mixing equipment and the heavy metal removal pond, and one side of mixing equipment is equipped with the curing agent storage tank that can carry the curing agent to mixing equipment, and mixing equipment's output passes through conveyor and is connected with mud desiccation stabilized soil stack.
The conveying devices mentioned in this embodiment are all of the prior art, for example, a pumping device can be used for conveying the waste slurry from the building to the flocculation tank, and for example, a pneumatic conveying system can be used for conveying the generated fly ash to the heavy metal removal tank.
In addition, the metering devices are required to be arranged between the heavy metal removing pool and the mixing equipment, between the curing agent storage tank and the mixing equipment and between the dehydrated soil storage yard and the mixing equipment, the amount of the curing agent and the mixing amount of the curing agent in the mixing equipment is determined by metering the amount of dehydrated soil input into the mixing equipment, and the amount of the curing agent and the mixing amount of the curing agent can be input through the respective metering devices.
Further, the incineration system comprises a preheating chamber, a combustion chamber, a cooling chamber, a secondary combustion chamber, a water cooling tower, a lime absorption tower and a cloth bag filter, wherein the input end of the preheating chamber is connected with the output end of the crusher, the tail gas output end of the preheating chamber is connected with the input end of the secondary combustion chamber, the preheating product output end of the preheating chamber is connected with the input end of the combustion chamber, the output end of the secondary combustion chamber is connected with the input end of the water cooling tower, the cooling product output end of the water cooling tower is connected with the input end of the lime absorption tower, the fly ash output end of the water cooling tower is used for outputting fly ash, the output end of the lime absorption tower is connected with the input end of the cloth bag filter, one output end of the cloth bag filter is used for outputting tail gas, the other output end of the waste heat output end of the combustion chamber is connected with a dehydrated soil heap field, the combustion product output end of the combustion chamber is connected with the input end of the cooling chamber, and the output end of the cooling chamber is used for outputting fly ash.
For the above system, the corresponding bonding process comprises the following steps:
s1, dehydrating construction waste slurry to form dehydrated soil; crushing and incinerating the printing and dyeing sludge, drying the waste heat generated in the incineration process for dehydrated soil, and simultaneously removing heavy metals from the fly ash generated in the incineration process to generate curing agent admixture;
s2, after the dehydrated soil is dried to the optimal water content, adding a curing agent and a curing agent admixture generated by fly ash, and uniformly mixing to form the slurry drying stabilized soil.
Wherein, the incineration treatment of the printing and dyeing sludge comprises the following steps:
t1, preheating the crushed printing and dyeing sludge, and burning, cooling and purifying tail gas generated by the preheating, thereby generating fly ash and standard tail gas capable of being directly discharged;
and T2, burning the preheated printing and dyeing sludge to generate waste heat for drying the dehydrated soil, and cooling the burning product of the printing and dyeing sludge to generate fly ash.
In the process and the system, the purpose of the crusher is to crush the printing and dyeing sludge cake, so that the combustion is more sufficient. The purpose of preheating before burning is to reduce the water content of the printing and dyeing sludge, improve the efficiency of a subsequent combustion chamber, reduce the consumption of fuel gas to about 30 percent generally, and simultaneously, enter some harmful tail gas into a tail gas treatment part (namely a secondary combustion chamber, a water cooling tower, a lime absorption tower and a cloth bag filter, wherein the secondary combustion chamber aims at burning the preheated steam and the tiny dust to remove toxicity, the lime absorption tower has an adsorption effect, mainly adsorbs harmful heavy metals and sulfides, and purifies the tail gas, and the cloth bag filter aims at filtering fly ash in the tail gas). The purpose of combustion in the combustion chamber is mainly to reduce the dyeing sludge, combustion residues account for about 3-5%, and meanwhile, a large amount of heat energy is generated by combustion of the dyeing sludge so as to be used for drying mud drying soil for recycling application.
The above embodiments are only for illustrating the concept of the present utility model and not for limiting the protection of the claims of the present utility model, and all the insubstantial modifications of the present utility model using the concept shall fall within the protection scope of the present utility model.
Claims (2)
1. The system is characterized by comprising a printing and dyeing sludge tank, a crusher, an incineration system, a heavy metal removal tank, a building waste sludge tank, a flocculation tank, a filter pressing device, a dewatering soil storage yard, mixing equipment and a mud drying stabilized soil storage yard;
the printing and dyeing sludge tank is connected with the input end of the crusher through a conveying device, the output end of the crusher is connected with the input end of the incineration system through a conveying device, waste heat generated by the incineration system is conveyed to a dewatered soil dump through a pipeline, fly ash generated by the incineration system is conveyed to the heavy metal removal tank through the conveying device, and a stabilizer storage tank capable of conveying a stabilizer to the heavy metal removal tank and a heavy metal storage tank for receiving heavy metal are arranged on the heavy metal removal tank side;
the waste slurry pond of building is connected with the flocculation pond through conveyor, and the flocculation pond is connected with filter-pressing device's input through conveyor, and filter-pressing device's output is connected the soil stack that dewaters, the soil stack that dewaters is connected with mixing equipment through conveyor, is equipped with curing agent spike conveyor between mixing equipment and the heavy metal removal pond, and one side of mixing equipment is equipped with the curing agent storage tank that can carry the curing agent to mixing equipment, and mixing equipment's output passes through conveyor and is connected with mud desiccation stabilized soil stack.
2. The printing and dyeing mill sludge and building waste sludge recycling combination system according to claim 1, wherein the incineration system comprises a preheating chamber, a combustion chamber, a cooling chamber, a secondary combustion chamber, a water cooling tower, a lime absorption tower and a cloth bag filter, wherein the input end of the preheating chamber is connected with the output end of a crusher, the tail gas output end of the preheating chamber is connected with the input end of the secondary combustion chamber, the preheating product output end of the preheating chamber is connected with the input end of the combustion chamber, the output end of the secondary combustion chamber is connected with the input end of the water cooling tower, the cooling product output end of the water cooling tower is connected with the input end of the lime absorption tower, the fly ash output end of the water cooling tower is used for outputting fly ash, the output end of the lime absorption tower is connected with the input end of the cloth bag filter, one output end of the cloth bag filter is used for outputting tail gas, the waste heat output end of the combustion chamber is connected with a dehydration soil dump, the combustion product output end of the combustion chamber is connected with the input end of the cooling chamber, and the output end of the cooling chamber is used for outputting fly ash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320497876.6U CN219991391U (en) | 2023-03-10 | 2023-03-10 | Printing and dyeing mill sludge and building waste sludge recycling combination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320497876.6U CN219991391U (en) | 2023-03-10 | 2023-03-10 | Printing and dyeing mill sludge and building waste sludge recycling combination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219991391U true CN219991391U (en) | 2023-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320497876.6U Active CN219991391U (en) | 2023-03-10 | 2023-03-10 | Printing and dyeing mill sludge and building waste sludge recycling combination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219991391U (en) |
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2023
- 2023-03-10 CN CN202320497876.6U patent/CN219991391U/en active Active
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