Pre-drying and carbonizing system for waste

Abstract

The invention provides a pre-drying and carbonizing system for waste. The pre-drying and carbonizing system comprises a sludge storage module, a furnace smoke pipeline module, an all-in-one machine module, a separation and pressurization module and a powder pipeline module, the sludge storage module is connected with the all-in-one machine module, and the sludge storage module is used for storing sludge and conveying the sludge to the all-in-one machine module; one end of the boiler smoke pipeline module is connected with the all-in-one machine module, the other end of the boiler smoke pipeline module is connected with a boiler, and the boiler smoke pipeline module is used for conveying high-temperature smoke exhausted by the boiler to the all-in-one machine module; the all-in-one machine module is used for drying and carbonizing the sludge by utilizing the high-temperature flue gas to generate sludge powder; the separation pressurization module is connected with the all-in-one machine module and used for conveying the sludge powder to a boiler combustion opening through the powder pipeline module for combustion. According to the technical scheme provided by the invention, the waste sludge can be treated into comburent, and harmless, stable and resource treatment of the sludge is realized.

Description

Technical Field

[0001] The present application relates to the technical field of waste sludge treatment, and in particular to a waste pre-drying and carbonization system. Background Art

[0002] Sludge is a product produced during the sewage treatment process. It contains a large amount of organic matter, rich nitrogen, phosphorus, nutrients, heavy metals and various pathogenic microorganisms, and must be properly treated and disposed of. The treatment and disposal of sewage and sludge are two systems that are equally important and closely related to solving the problem of water pollution. Sludge treatment and disposal is the guarantee for the final implementation of sewage treatment benefits and is an extremely important link. If the sludge in the sewage treatment plant cannot be safely and properly disposed of, the sewage treatment project will lose its due environmental protection function. The existing sludge disposal method does not meet the requirements of safe, reliable and environmentally friendly harmless treatment. Most of the sludge is directly transported to the landfill after simple dehydration, which does not meet the requirements of the current standards. The landfilled sludge will inevitably cause secondary pollution to the water body and the atmosphere, bringing safety hazards to the ecological environment. The current sludge disposal method obviously does not meet the requirements of ecological city construction, and occupies a large amount of precious land resources, with huge social costs. Therefore, it is urgent to propose a solution for the harmless disposal of sludge. Summary of the invention

[0003] The present application provides a waste pre-drying and carbonization system to at least solve the technical problem that the existing sludge disposal causes secondary pollution to water bodies and the atmosphere.

[0004] The first embodiment of the present application provides a waste pre-drying and carbonization system, the system comprising: a sludge storage module, a furnace smoke pipeline module, an all-in-one module, a separation and pressurization module and a powder pipeline module;

[0005] The sludge storage module is connected to the integrated machine module, and the sludge storage module is used to store sludge and transport the sludge to the integrated machine module;

[0006] One end of the furnace smoke duct module is connected to the integrated machine module, and the other end is connected to the boiler. The furnace smoke duct module is used to transport the high-temperature smoke discharged from the boiler to the integrated machine module;

[0007] The integrated machine module is used to utilize the high-temperature flue gas to dry and carbonize the sludge to generate sludge powder;

[0008] The separation and boosting module is connected to the integrated machine module, and the separation and boosting module is used to transport the sludge powder to the boiler combustion port through the powder pipeline module for combustion.

[0009] Preferably, the sludge storage module comprises: a wet sludge storage bin and a plurality of dry sludge storage bins;

[0010] The wet sludge storage bin is used to store wet sludge;

[0011] The multiple dry sludge storage bins are all used to store dry sludge.

[0012] Further, the furnace smoke duct module comprises: a plurality of furnace smoke ducts;

[0013] The integrated machine module includes: a plurality of integrated machines;

[0014] The separation and boosting module comprises: a plurality of separation and boosting units;

[0015] The powder pipeline module comprises: a plurality of powder pipelines;

[0016] Among them, the number of the multiple dry sludge storage bins, the multiple furnace smoke ducts, the multiple integrated machines, the multiple separation and boosting units, and the multiple powder ducts is N.

[0017] Furthermore, one of the furnace smoke ducts, one of the dry sludge storage bins and one of the integrated machines are connected;

[0018] One of the integrated machines is connected to one of the separation and boosting units;

[0019] One of the separation and pressurization units is connected to a powder pipeline;

[0020] The wet sludge storage bins are respectively connected to a plurality of integrated machines.

[0021] Further, the separation and pressurization unit comprises: a cyclone dust collector, T feeders and a booster fan;

[0022] The cyclone dust collector is respectively connected to the integrated machine, T feeders, and the booster fan.

[0023] Further, the cyclone dust collector is arranged in front of the booster fan;

[0024] The other end of the T feeders is connected to the air outlet end of the booster fan.

[0025] Furthermore, T is equal to 2.

[0026] Furthermore, a steel ball is provided in the integrated machine;

[0027] The steel balls are used to grind the sludge into sludge powder.

[0028] Furthermore, a first connecting pipe is provided between two adjacent furnace smoke pipes.

[0029] Furthermore, a second communicating pipeline is provided between two adjacent powder pipelines.

[0030] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0031] The present application proposes a waste pre-drying carbonization system, the method comprising: a sludge storage module, a furnace smoke duct module, an integrated machine module, a separation and boosting module and a powder duct module; the sludge storage module is connected to the integrated machine module, the sludge storage module is used to store sludge and transport the sludge to the integrated machine module; one end of the furnace smoke duct module is connected to the integrated machine module, and the other end is connected to the boiler, the furnace smoke duct module is used to transport the high-temperature flue gas discharged from the boiler to the integrated machine module; the integrated machine module is used to use the high-temperature flue gas to dry and carbonize the sludge to generate sludge powder; the separation and boosting module is connected to the integrated machine module, and the separation and boosting module is used to transport the sludge powder to the boiler combustion port through the powder duct module for combustion. The technical solution proposed in the present application can process waste sludge into combustion materials, and realize the harmless, stable and resource-based disposal of sludge.

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0034] Figure 1 A structural diagram of a waste pre-drying and carbonization system provided according to an embodiment of the present application;

[0035] Figure 2 A schematic diagram of the structure of a waste pre-drying and carbonization system connected to boilers No. 5 and No. 6 according to an embodiment of the present application;

[0036] Reference numerals

[0037] Sludge storage module 1, furnace smoke duct module 2, all-in-one module 3, separation and pressurization module 4, powder duct module 5, wet sludge storage bin 1-1, dry sludge storage bin 1-2, furnace smoke duct 2-1, all-in-one machine 3-1, separation and pressurization unit 4-1, powder duct 5-1, cyclone dust collector 4-1-1, feeder 4-1-2, booster fan 4-1-3, first connecting duct 6, second connecting duct 7. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0039] The present application proposes a waste pre-drying carbonization system, the method comprising: a sludge storage module, a furnace smoke duct module, an integrated machine module, a separation and boosting module and a powder duct module; the sludge storage module is connected to the integrated machine module, the sludge storage module is used to store sludge and transport the sludge to the integrated machine module; one end of the furnace smoke duct module is connected to the integrated machine module, and the other end is connected to the boiler, the furnace smoke duct module is used to transport the high-temperature flue gas discharged from the boiler to the integrated machine module; the integrated machine module is used to use the high-temperature flue gas to dry and carbonize the sludge to generate sludge powder; the separation and boosting module is connected to the integrated machine module, and the separation and boosting module is used to transport the sludge powder to the boiler combustion port through the powder duct module for combustion. The technical solution proposed in the present application can process waste sludge into combustion materials, and realize the harmless, stable and resource-based disposal of sludge.

[0040] A waste pre-drying and carbonization system according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0041] Embodiment 1

[0042] Figure 1 This is a structural diagram of a waste pre-drying carbonization system provided according to an embodiment of the present application, such as Figure 1 As shown, the system includes: a sludge storage module 1, a furnace smoke pipeline module 2, an integrated machine module 3, a separation and pressurization module 4 and a powder pipeline module 5;

[0043] The sludge storage module 1 is connected to the integrated machine module 3, and the sludge storage module 1 is used to store sludge and transport the sludge to the integrated machine module 3;

[0044] One end of the furnace smoke duct module 2 is connected to the integrated machine module 3, and the other end is connected to the boiler. The furnace smoke duct module 2 is used to transport the high-temperature smoke discharged from the boiler to the integrated machine module 3;

[0045] The integrated machine module 3 is used to utilize the high-temperature flue gas to dry and carbonize the sludge to generate sludge powder;

[0046] The separation and boosting module 4 is connected to the integrated machine module 3 , and the separation and boosting module 4 is used to transport the sludge powder to the boiler combustion port through the powder pipeline module 5 for combustion.

[0047] It should be noted that the integrated machine 3-1 is mainly divided into a rotary drying section and a crushing and conveying section. The high-temperature furnace smoke first directly contacts the sludge in the rotary drying section, and the sludge evaporates the water under the action of the high-temperature flue gas. Steel balls are arranged in the rotary drying section, and the rotary drying section drives the steel balls and sludge to rotate together. The dry sludge is initially crushed under the grinding action of the steel balls. The crushed sludge is carried by the flue gas into the crushing and conveying end, where the sludge is further ground into powder. The crushing and conveying end also provides power for the flue gas flow and forms a negative pressure in the integrated machine to prevent odor leakage.

[0048] In the disclosed embodiment, the sludge storage module 1 comprises: a wet sludge storage bin 1-1, a plurality of dry sludge storage bins 1-2;

[0049] The wet sludge storage bin 1-1 is used to store wet sludge;

[0050] The multiple dry sludge storage bins 1-2 are all used to store dry sludge.

[0051] Among them, Figure 2 As shown, there are two schematic diagrams of dry sludge storage bins 1-2.

[0052] Furthermore, the furnace smoke duct module 2 comprises: a plurality of furnace smoke ducts 2-1;

[0053] The integrated machine module 3 comprises: a plurality of integrated machines 3-1, wherein the integrated machine 3-1 is provided with steel balls, and the steel balls are used to grind the sludge into sludge powder;

[0054] The separation and boost module 4 comprises: a plurality of separation and boost units 4-1;

[0055] The powder pipeline module 5 includes: a plurality of powder pipelines 5-1;

[0056] Among them, the number of the multiple dry sludge storage bins 1-2, the multiple furnace smoke ducts 2-1, the multiple integrated machines 3-1, the multiple separation and boosting units 4-1, and the multiple powder ducts 5-1 is N.

[0057] It should be noted that one of the furnace smoke ducts 2-1, one of the dry sludge storage bins 1-2 and one of the integrated machines 3-1 are connected;

[0058] One of the integrated machines 3-1 is connected to one of the separation and boosting units 4-1;

[0059] The separation and pressurization unit 4-1 is connected to a powder pipeline 5-1;

[0060] The wet sludge storage bin 1 - 1 is connected to a plurality of integrated machines 3 - 1 respectively.

[0061] like Figure 2 As shown, this is the connection diagram when N is 2.

[0062] In the disclosed embodiment, the separation and pressurization unit 4-1 includes: a cyclone dust collector 4-1-1, T feeders 4-1-2 and a pressurization fan 4-1-3;

[0063] The cyclone dust collector 4-1-1 is connected to the integrated machine 3-1, T feeders 4-1-2, and the booster fan 4-1-3 respectively.

[0064] It should be noted that if Figure 2 As shown, the cyclone dust collector 4-1-1 is arranged in front of the booster fan 4-1-3;

[0065] The other end of the T feeders 4-1-2 is connected to the air outlet end of the booster fan 4-1-3.

[0066] Wherein, T is equal to 2, that is, one cyclone dust collector 4-1-1 can be connected to two feeders 4-1-2.

[0067] In the embodiments of the present disclosure, Figure 2 As shown, a first connecting pipe 6 is provided between the two adjacent furnace smoke pipes 2 - 1 .

[0068] A second connecting pipeline 7 is provided between two adjacent powder pipelines 5 - 1 .

[0069] The first connecting pipe 6 can connect two adjacent furnace smoke pipes 2-1, and can balance the gas between the two pipes;

[0070] The second connecting pipe 7 can connect two adjacent powder pipes 5 - 1 , and can adjust the gas balance between the two pipes.

[0071] It should be noted that the sludge is transported to the sludge storage module 1 by a closed sludge transport vehicle and dumped into the sludge receiving bin arranged underground. In order to prevent the leakage of odor, a closed sludge receiving room is built on the sludge receiving bin. The sludge in the sludge receiving bin is transported to the all-in-one machine through a specific sludge conveying device. The high-temperature furnace smoke is extracted from the flue at the tail end of the boiler into the all-in-one machine to dry and carbonize the sludge. Steel balls are arranged in the all-in-one machine. The sludge and steel balls rotate together with the all-in-one machine, and the grinding effect of the steel balls breaks the sludge into powder. The sludge powder is carried by the flue gas and directly sent to the boiler for combustion and disposal. The combustion products are treated by the original environmental protection equipment of the boiler and meet the emission standards.

[0072] For example, Figure 2 As shown, it includes two integrated machines 3-1, two furnace smoke ducts 2-1, a wet sludge storage bin 1-1, and two dry sludge storage bins 1-2. Figure 2 shown.

[0073] Boilers No. 5 and No. 6 are each equipped with an integrated machine 3-1. The integrated machine 3-1 is connected to boilers No. 5 and No. 6 through the flue gas duct system, namely, the flue gas duct 2-1. The flue gas of boilers No. 5 and No. 6 is a backup relationship for the integrated machine. The integrated machine extracts high-temperature flue gas from boiler No. 5 or boiler No. 6, and the dried sludge is carried by the flue gas and sent to boiler No. 5 or No. 6 for incineration and disposal. In principle, the integrated machine only corresponds to one boiler. The power for extracting flue gas is provided by the newly added booster fan 4-1-3. In order to prevent the booster fan blades from wearing too quickly, a cyclone dust collector 4-1-1 is arranged in front of the booster fan. The arrangement of the cyclone dust collector is shown in Figure 2 The particles are separated by the cyclone dust collector 4-1-1 and then fed into the feeder from the booster fan 4-1-3.

[0074] It should be noted that the waste pre-drying and carbonization system proposed in this embodiment can realize the resource utilization, stabilization and harmless disposal of sludge, further reduce pollutant emissions, help accelerate the construction of an ecological civilization city, and achieve improved urban quality.

[0075] In summary, the waste pre-drying and carbonization system proposed in this embodiment can process waste sludge into combustibles, thereby achieving harmless, stabilized and resourceful disposal of the sludge.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0077] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0078] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A waste pre-drying carbonization system, characterized in that: The system comprises: a sludge storage module, a furnace smoke pipeline module, an integrated machine module, a separation and pressurization module and a powder pipeline module; The sludge storage module is connected to the integrated machine module, and the sludge storage module is used to store sludge and transport the sludge to the integrated machine module; One end of the furnace smoke duct module is connected to the integrated machine module, and the other end is connected to the boiler. The furnace smoke duct module is used to transport the high-temperature smoke discharged from the boiler to the integrated machine module; The integrated machine module is used to utilize the high-temperature flue gas to dry and carbonize the sludge to generate sludge powder; The separation and boosting module is connected to the integrated machine module, and the separation and boosting module is used to transport the sludge powder to the boiler combustion port through the powder pipeline module for combustion.

2. The system according to claim 1, characterized in that The sludge storage module includes: a wet sludge storage bin and a plurality of dry sludge storage bins; The wet sludge storage bin is used to store wet sludge; The multiple dry sludge storage bins are all used to store dry sludge.

3. The system according to claim 2, characterized in that The furnace smoke duct module comprises: a plurality of furnace smoke ducts; The integrated machine module includes: a plurality of integrated machines; The separation and boosting module comprises: a plurality of separation and boosting units; The powder pipeline module comprises: a plurality of powder pipelines; Among them, the number of the multiple dry sludge storage bins, the multiple furnace smoke ducts, the multiple integrated machines, the multiple separation and boosting units, and the multiple powder ducts is N.

4. The system according to claim 3, characterized in that One of the furnace smoke ducts, one of the dry sludge storage bins and one of the integrated machines are connected; One of the integrated machines is connected to one of the separation and boosting units; One of the separation and pressurization units is connected to a powder pipeline; The wet sludge storage bins are respectively connected to a plurality of integrated machines.

5. The system according to claim 4, characterized in that The separation and pressurization unit comprises: a cyclone dust collector, T feeders and a booster fan; The cyclone dust collector is respectively connected to the integrated machine, T feeders, and the booster fan.

6. The system according to claim 5, characterized in that The cyclone dust collector is arranged in front of the booster fan; The other end of the T feeders is connected to the air outlet end of the booster fan.

7. The system according to claim 6, characterized in that The T is equal to 2.

8. The system according to claim 7, characterized in that A steel ball is arranged in the integrated machine; The steel balls are used to grind the sludge into sludge powder.

9. The system according to claim 7, characterized in that A first connecting pipe is arranged between two adjacent furnace smoke pipes.

10. The system according to claim 7, characterized in that A second communicating pipeline is arranged between two adjacent powder pipelines.

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