CN212713208U - Sludge drying machine exhaust steam treatment system - Google Patents
Sludge drying machine exhaust steam treatment system Download PDFInfo
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- CN212713208U CN212713208U CN202020893020.7U CN202020893020U CN212713208U CN 212713208 U CN212713208 U CN 212713208U CN 202020893020 U CN202020893020 U CN 202020893020U CN 212713208 U CN212713208 U CN 212713208U
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Abstract
The utility model discloses a sludge drier exhaust steam treatment system, which comprises a wet sludge bin, a double-shaft screw conveyor, a hydraulic sludge pump, a drier, a separator, a condenser, a blower, a conveying device, a dry sludge bin, a coal conveying device, a coal powder preparation system and a boiler, wherein the wet sludge bin, the double-shaft screw conveyor, the hydraulic sludge pump, the drier, the conveying device, the dry sludge bin, the coal conveying device, the coal powder preparation system and the boiler are sequentially connected; the exhaust port of the drier is communicated with the inlet of the separator, the outlet of the separator is communicated with the inlet of the condenser, the outlet of the condenser is connected with the inlet of the blower, and the outlet of the blower is connected with the air inlet of the drier. The utility model discloses concentrate the dehumidification back with the exhaust steam, in the sludge drying machine of resupply, cyclic utilization through less equipment transformation cost, solves the processing problem of exhaust steam, reforms transform lessly boiler system simultaneously, and equipment cost is low, and is less to boiler combustion influence, and economic nature is good.
Description
Technical Field
The utility model relates to a sludge drying machine exhaust steam treatment recycles technical field, more specifically says so and relates to a sludge drying machine exhaust steam processing system.
Background
With the development of economy and the improvement of living standard, the sewage discharge amount in China is increasing day by day, and the sludge output of a sewage treatment plant is rapidly increased. According to measurement and calculation, the sludge yield in China is about 4000 ten thousand tons in 2016, and the sludge yield in China is estimated to reach 6000 ten thousand tons in 2020. For a long time, the sewage treatment in China has the phenomenon of 'heavy water and light mud', the effective treatment rate of municipal sewage is stably kept above 85% from 2001, and the safe treatment rate of the sludge is less than 30%. Sludge drying and incineration are important means for harmless treatment of sludge.
In recent years, with the development of sludge drying and incineration technology, a plurality of research institutions utility model discloses a sludge drying and incineration system for treating waste with waste, but the waste steam treatment system of a drying machine has the problems of complex equipment, high manufacturing cost, slightly reduced boiler efficiency during recycling and the like. The patent CN201520047960.3 discloses a 'sludge drying and incinerating system depending on a thermal power plant', which aims to open up a steam type sludge drying and incinerating disposal scheme for recycling waste and treating waste with waste, wherein the scheme comprises an exhaust steam treatment system and an exhaust steam recycling system; patent CN201821016155.4 discloses a biological deodorization device for sludge resource treatment, which utilizes the biological deodorization device to perform harmless treatment on dead steam in the sludge resource treatment and finally discharges the dead steam into the atmosphere.
Therefore, how to provide a novel exhaust steam treatment system of a sludge drying machine is a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a sludge drying machine exhaust steam processing system can effectively handle exhaust steam, and equipment cost is low, and economic nature is good.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a sludge drier exhaust steam treatment system comprises: wet sludge storehouse, conveyer, sludge pump, desiccator, separator, condenser and forced draught blower, wet sludge storehouse the conveyer sludge pump with the desiccator connects gradually, the gas vent of desiccator with the entry intercommunication of separator, the export of separator with the entry intercommunication of condenser, the export of condenser with the entry intercommunication of forced draught blower, the export of forced draught blower with the air inlet intercommunication of desiccator.
Further, still include conveyor, dry sludge warehouse, coal conveyor, buggy preparation system and the boiler that connects gradually, just the mud outlet of mummification machine is located conveyor's top.
Further, wet mud storehouse includes feeding gate, ultrasonic wave charge level indicator, electric mixer, hydraulic pressure skeleton, discharge gate and the storehouse body, the feeding gate with the discharge gate sets up respectively the top and the bottom of the storehouse body, the ultrasonic wave charge level indicator is located the top of the storehouse body, electric mixer is located the internal portion in storehouse, the hydraulic pressure skeleton sets up storehouse body bottom, and is located the electric mixer below, the discharge gate with the conveyer is connected.
Further, the condenser comprises a two-stage condenser.
Further, the conveyor comprises a twin-shaft screw conveyor.
Further, the sludge pump includes a hydraulic sludge pump.
According to the technical scheme, compare with prior art, the utility model discloses a sludge drying machine exhaust steam processing system concentrates the dehumidification back with exhaust steam, in the sludge drying machine of resupply transmission back, cyclic utilization through less equipment transformation cost, solves the processing problem of exhaust steam, and it is less to the boiler system transformation simultaneously, and equipment cost is low, and is less to boiler combustion influence, and economic nature is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a waste steam treatment system of a sludge drying machine according to the present invention.
Wherein the content of the first and second substances,
1. the system comprises a wet sludge bin 101, a feeding door 102, an ultrasonic material level meter 103, an electric stirrer 104, a hydraulic framework 105, a discharge port 106, a bin body 2, a conveyor 3, a sludge pump 4, a drier 5, a separator 6, a condenser 7, a blower 8, a conveying device 9, a dry sludge bin 10, a coal conveying device 11, a coal powder preparation system 12 and a boiler.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses sludge drying machine exhaust steam processing system, including wet sludge storehouse 1, biax screw conveyer 2, fluid pressure type sludge pump 3, desiccator 4, separator 5, condenser 6, forced draught blower 7, conveyor 8, dry sludge storehouse 9, coal conveyor 10, buggy preparation system 11 and boiler 12, its connection is: the wet sludge bin 1 is connected with a double-shaft screw conveyor 2, a hydraulic sludge pump 3 is connected with the double-shaft screw conveyor 2 and a drier 4, the drier 4 is respectively connected with a blower 7 and a conveying device 8, a dry sludge bin 9 is respectively connected with the conveying device 8 and a coal conveying device 10, and a coal powder preparation system 11 is respectively connected with the coal conveying device 10 and a boiler 12; an exhaust port of the drier 4 is communicated with an inlet A of the separator 5, the separator 5 is mainly used for separating out large-particle impurities carried in exhaust steam so as to prevent the impurities in the exhaust steam from being stained on a heat exchange pipeline of the condenser 6 to influence heat exchange, an outlet B of the separator 5 is communicated with an inlet C of the condenser 6, an outlet D, E of the condenser 6 is connected with an inlet F of the air feeder 7, an outlet G of the air feeder 7 is connected with an air inlet of the drier 4, the condenser 6 is mainly used for separating a large amount of moisture and impurities contained in the exhaust steam and purifying the exhaust steam, so that the exhaust steam is recycled, and the condenser 6 is a secondary condenser.
Preferably, the wet sludge bin 1 comprises a feeding door 101, an ultrasonic level gauge 102, an electric stirrer 103, a hydraulic sliding frame 104, a discharge port 105 and a bin body 106, wherein the feeding door 101 is an electric bin door, so that the wet sludge bin is in a closed state at ordinary times, and odor is prevented from leaking; the ultrasonic material level meter 102 is used for recording the storage amount of wet sludge in the wet sludge bin in real time; the electric stirrer 103 is used for uniformly stirring the sludge in the wet sludge bin and enhancing the fluidity of the wet sludge; the hydraulic carriage 104 is mounted at the bottom of the bin and mainly functions to uniformly discharge the sludge in the sludge bin into the sludge pump.
The utility model discloses the processing procedure does: wet sludge is firstly stored in a wet sludge bin 1 and is pre-pressed by a double-shaft screw conveyor 2, then the wet sludge is sent into a drier 4 by a hydraulic sludge pump 3, and saturated steam is introduced into the drier 4 to dehydrate the wet sludge into dry sludge; the dry sludge is sent into a dry sludge bin 9 for storage through a conveying device 8, sent to a boiler pulverized coal preparation system 11 through a coal conveying device 10 and finally sent into a boiler 12 for incineration; a large amount of exhaust steam carrying wet sludge and having moisture removed is discharged from the drier 4, the exhaust steam enters the separator 5 through an exhaust port of the drier, is separated from impurities with the particle size of more than or equal to 30 mu m in the exhaust steam and then is sent into the condenser 6, the moisture and the impurities with the particle size of less than 30 mu m are removed from the condenser 6, and then the exhaust steam is sent back to an air inlet of the drier through the air feeder 7, so that the cyclic utilization of the exhaust steam is realized.
The sewage discharged by the condenser 6 is introduced into a sewage discharge system in a boiler plant, and saturated steam from a steam-water system of the boiler provides heat for the drier 4 to form saturated water which is pumped back into the steam-water system of the boiler.
The drying machine 4 selects saturated steam with the pressure of 0.6-0.7 Mpa and the temperature of 165-175 ℃.
The moisture content of wet sludge introduced into the drier 4 is 80-90%, and the moisture content of produced dry sludge is 25-35%.
Example 1:
taking a sludge drying incineration and exhaust steam recycling system planned to be used by a certain coal-fired power plant as an example, a sewage treatment plant is arranged near the coal-fired power plant to provide wet sludge for the coal-fired power plant for treatment. The sewage treatment plant sends sludge into the coal-fired power plant through a tank car, the water content of the sludge is 80%, the wet sludge is stored into a wet sludge bin firstly, a feeding door is electrically controlled and tightly closed, a hydraulic sliding frame is arranged in the bin, and an ultrasonic material level meter is arranged at the top of the bin. The wet sludge bin is externally brushed with the anticorrosive paint and lined with the wear-resistant and corrosion-resistant stainless steel material, so that the hydraulic sliding frame is ensured not to generate adverse effects on the anticorrosive lining of the wet sludge bin in the operation process. The wet sludge is pre-pressed by a double-screw conveyor and is transferred into a hydraulic sludge pump and then is sent into a drier, the wet sludge is dehydrated by saturated steam to become dry sludge which is stored in a dry sludge bin through a conveying device, the dry sludge in the dry sludge bin is transferred into an original coal powder preparation system of a coal-fired power plant through a coal conveying device and is crushed into powder to be fed into a boiler together with coal powder for combustion. And the exhaust steam discharged by the drier is conveyed to a separator, then is introduced into a condenser for condensation, and is conveyed back to the drier for cyclic utilization through a blower after being dehumidified.
The utility model has small change to the original boiler system and small influence on the boiler performance; through less equipment transformation cost, the problem of the disposal of the dead steam is solved, and the problem that a large amount of equipment is needed in the existing dead steam treatment is solved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a sludge drying machine exhaust steam processing system which characterized in that includes: wet sludge bin (1), conveyer (2), sludge pump (3), desiccator (4), separator (5), condenser (6) and forced draught blower (7), wet sludge bin (1) conveyer (2) sludge pump (3) with desiccator (4) connect gradually, the gas vent of desiccator (4) with the entry intercommunication of separator (5), the export of separator (5) with the entry intercommunication of condenser (6), the export of condenser (6) with the entry intercommunication of forced draught blower (7), the export of forced draught blower (7) with the air inlet intercommunication of desiccator (4).
2. The exhaust steam treatment system of the sludge drying machine according to claim 1, further comprising a conveying device (8), a dry sludge bin (9), a coal conveying device (10), a coal powder preparation system (11) and a boiler (12) which are connected in sequence, wherein a sludge outlet of the drying machine (4) is positioned above the conveying device (8).
3. The sludge drying machine exhaust steam treatment system as claimed in claim 1 or 2, wherein the wet sludge bin (1) comprises a feeding door (101), an ultrasonic level indicator (102), an electric mixer (103), a hydraulic framework (104), a discharging port (105) and a bin body (106), the feeding door (101) and the discharging port (105) are respectively arranged at the top and the bottom of the bin body (106), the ultrasonic level indicator (102) is arranged at the top of the bin body (106), the electric mixer (103) is arranged inside the bin body (106), the hydraulic framework (104) is arranged at the bottom of the bin body (106) and is arranged below the electric mixer (103), and the discharging port (105) is connected with the conveyor (2).
4. The exhaust steam treatment system of the sludge drying machine as claimed in claim 3, wherein the condenser (6) comprises a secondary condenser.
5. The sludge drying machine exhaust steam treatment system as claimed in claim 1 or 4, wherein the conveyor (2) comprises a double-shaft screw conveyor.
6. The waste steam treatment system of the sludge drying machine as claimed in claim 5, wherein the sludge pump (3) comprises a hydraulic sludge pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020893020.7U CN212713208U (en) | 2020-05-25 | 2020-05-25 | Sludge drying machine exhaust steam treatment system |
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| CN202020893020.7U CN212713208U (en) | 2020-05-25 | 2020-05-25 | Sludge drying machine exhaust steam treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533425A (en) * | 2020-05-25 | 2020-08-14 | 国惠环保新能源有限公司 | Sludge drying machine exhaust steam treatment system and method |
| CN114105438A (en) * | 2021-11-23 | 2022-03-01 | 国能龙源环保有限公司 | Efficient and energy-saving material drying system and method |
-
2020
- 2020-05-25 CN CN202020893020.7U patent/CN212713208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533425A (en) * | 2020-05-25 | 2020-08-14 | 国惠环保新能源有限公司 | Sludge drying machine exhaust steam treatment system and method |
| CN114105438A (en) * | 2021-11-23 | 2022-03-01 | 国能龙源环保有限公司 | Efficient and energy-saving material drying system and method |
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