CN204917977U - A flue gas heat energy comprehensive utilization system for producing sodium tripolyphosphate - Google Patents
A flue gas heat energy comprehensive utilization system for producing sodium tripolyphosphate Download PDFInfo
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- CN204917977U CN204917977U CN201520693140.1U CN201520693140U CN204917977U CN 204917977 U CN204917977 U CN 204917977U CN 201520693140 U CN201520693140 U CN 201520693140U CN 204917977 U CN204917977 U CN 204917977U
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- smoke box
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- pipeline
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses a flue gas heat energy comprehensive utilization system for producing sodium tripolyphosphate relates to heat recovery and utilizes the field, and this system includes waste heat recovery device, boiler softened water tank, air heater, water heater, condenser and circulation tank, and waste heat recovery device includes waste heat recoverer and steam pocket, and air heater includes smoke box and lower smoke box, and water heater includes water storage tank and heat transfer smoke box, waste heat recoverer's inlet end and fume emission pipe connection, waste heat recoverer's the end of giving vent to anger has connected gradually down smoke box, heat transfer smoke box, and the condenser is connected with last smoke box, the water inlet and the circulation tank of water storage tank are connected, and the delivery port of water storage tank is connected with the water inlet of condenser, and delivery port and boiler softened water tank, the circulation tank of condenser all are connected, boiler softened water tank still all is connected with steam pocket, circulation tank. The utility model discloses can carry out a lot of heat recovery, pollution abatement to the heat in the produced flue gas of production sodium tripolyphosphate in -process.
Description
Technical field
The utility model relates to heat energy recycle field, specifically relates to a kind of smoke heat energy utilization system for the production of tripoly phosphate sodium STPP.
Background technology
Tripoly phosphate sodium STPP is neutralized into sodium orthophosphate by phosphoric acid through soda ash, then forms through condensation, is commonly called as five sodium, is generally used for the sofening treatment of synthetic detergent, food and process water.
The technique that tripoly phosphate sodium STPP produced by orthophosphoric acid salt mainly contains following two kinds of methods:
The first is spraying dry-converter polycondensation two-phase method: spray-dryer is a cylinder, top connects with the Horizontal burner with gas jet, temperature is the gas of 400 ~ 500 DEG C passes into spray-drying tower top through burner, use high pressure (4.2MPa) pump to be sprayed into by the solution of orthophosphoric acid salt simultaneously, the drying products of moisture less than 5% constantly takes out from moisture eliminator bottom, and orthophosphoric acid salt mixture dehydrating polycondensation in rotary oven becomes tripoly phosphate sodium STPP.
The second is dry-dehydration one-stage process: slip is sprayed into rotary oven, and send into hot gas or burning petroleum with heating with nozzle in stove, stove is divided into flame section and heating zone by ring-shaped baffle, in heating zone, and material final dewatering polycondensation and change into tripoly phosphate sodium STPP; Cooling cylinder is connected with rotary oven, and levigate in shredder by cooling cylinder granulated product out, a small amount of powder taken out of from stove reclaims in cyclonic separator.
In the process of producing tripoly phosphate sodium STPP, need to consume thermal source as steam, fuel gas (as Sweet natural gas, yellow phosphoric tail gas etc.), and the flue-gas temperature of discharging in production pipeline is generally more than 300 DEG C, because flue gas has the advantages that corrodibility is strong, dust concentration is high, adhesion is strong, cannot be effectively utilized, most tripoly phosphate sodium STPP enterprise all have selected directly discharges towards sky, both the loss of Of STPP had been caused, cause again a large amount of heat energy to waste, simultaneously also serious environmental pollution.
Utility model content
The purpose of this utility model is the deficiency in order to overcome above-mentioned background technology, a kind of smoke heat energy utilization system for the production of tripoly phosphate sodium STPP is provided, by in production tripoly phosphate sodium STPP process the heat produced in flue gas carry out repeatedly energy recovery, produce steam, warm air and hot water, define the thermal source of three kinds of different gradess, and all for Chemical Manufacture, recycle mode by this energy cascade and effectively improve heat utilization rate; The dust content in flue gas can also be reduced simultaneously, this dust is actual is the Of STPP produced, and not only alleviates pollution on the environment, extends the work-ing life of sack cleaner, and can turn waste into wealth, improve the rate of recovery of Of STPP.
The utility model provides a kind of smoke heat energy utilization system for the production of tripoly phosphate sodium STPP, comprise waste-heat recovery device, described waste-heat recovery device comprises waste-heat recoverer and drum, and waste-heat recoverer is connected with drum, drum is provided with some steam valves for discharged steam; Described smoke heat energy utilization system also comprises air preheater, water heater, condenser, boiler softened water tank and cyclic water tank; Described air preheater comprises upper smoke box and lower smoke box, and upper smoke box is connected with lower smoke box, and water heater comprises water tank and heat-exchange smoke box, and water tank is connected with heat-exchange smoke box; Described boiler softened water tank is connected with outside water supply installation;
Described waste-heat recoverer, upper smoke box, lower smoke box, heat-exchange smoke box and condenser include inlet end and outlet side, the inlet end of waste-heat recoverer is connected with flue gas exhausting pipe line, all be connected by pipeline between the outlet side of waste-heat recoverer and the inlet end of lower smoke box, between the outlet side of lower smoke box and the inlet end of heat-exchange smoke box, the outlet side of heat-exchange smoke box is connected with chimney; The inlet end of described condenser exposes, and the outlet side of condenser is connected with the inlet end of upper smoke box, and the outlet side of upper smoke box is exposed;
Described smoke heat energy utilization system also comprises the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline and the 5th pipeline, described condenser, water tank include water-in and water outlet, the water-in of water tank is connected with cyclic water tank by the first pipeline, the water outlet of water tank is connected with the water-in of condenser by the second pipeline, and the water outlet of condenser is all connected with boiler softened water tank, cyclic water tank by the 3rd pipeline; Boiler softened water tank is also connected with drum by the 4th pipeline, boiler softened water tank is also connected with cyclic water tank by the 5th pipeline.
On the basis of technique scheme, between described flue gas exhausting pipe line and the inlet end of waste-heat recoverer, be provided with tornado dust collector.
On the basis of technique scheme, between the outlet side of described waste-heat recoverer and the inlet end of lower smoke box, be provided with sack cleaner.
On the basis of technique scheme, bottom the heat-exchange smoke box of described water heater, have sewage draining exit.
Compared with prior art, advantage of the present utility model is as follows:
(1) the utility model passes through repeatedly energy recovery, to produce heat that institute in tripoly phosphate sodium STPP process produces flue gas in addition step fully utilize, produce steam, warm air and hot water, improve the utilization ratio of heat energy, all recovery thermals source are all produced for tripoly phosphate sodium STPP, not only achieve tripoly phosphate sodium STPP and produce self to the self-sufficiency of steam, the hot blast that energy recovery produces simultaneously uses for the concentrate drying of Of STPP and the combustion-supporting sky of polymerization furnace, the while of fuel-saving, reduce the thermal pollution of air.And this system also has the function of collecting dust in flue gas, reduce the content of dust in flue gas, flue gas is before entering sack cleaner simultaneously, by waste-heat recoverer, flue-gas temperature has been dropped to less than 200 DEG C, avoid sack cleaner scaling loss, extend the work-ing life of sack cleaner.
(2) dust content in fume emission is reduced in the utility model by tornado dust collector, sack cleaner, alleviate pollution on the environment, the dust simultaneously reclaimed is actual is the Of STPP produced, can turn waste into wealth, improve the rate of recovery of Of STPP.
Accompanying drawing explanation
Fig. 1 is the structural representation for the production of the smoke heat energy utilization system of tripoly phosphate sodium STPP in the utility model embodiment.
Reference numeral: 1-tornado dust collector, 2-waste-heat recovery device, 2a-drum, 2b-waste-heat recoverer, 3-sack cleaner, 4-boiler softened water tank, 5-air preheater, 5a-upper smoke box, 5b-lower smoke box, 6-condenser, 7-water heater, 7a-water tank, 7b-heat-exchange smoke box, 7c-sewage draining exit, 8-cyclic water tank.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Shown in Figure 1, the utility model embodiment provides a kind of smoke heat energy utilization system for the production of tripoly phosphate sodium STPP, comprises waste-heat recovery device 2, boiler softened water tank 4, air preheater 5, water heater 7, condenser 6 and cyclic water tank 8.Waste-heat recovery device 2 comprises waste-heat recoverer 2b and drum 2a, and waste-heat recoverer 2b is connected with drum 2a, drum 2a is provided with some steam valves for discharged steam.Air preheater 5 comprises upper smoke box 5a and lower smoke box 5b, and upper smoke box 5a is connected with lower smoke box 5b, and water heater 7 comprises water tank 7a and heat-exchange smoke box 7b, and water tank 7a is connected with heat-exchange smoke box 7b, has sewage draining exit 7c bottom heat-exchange smoke box 7b.Boiler softened water tank 4 is connected with outside water supply installation.
Waste-heat recoverer 2b, upper smoke box 5a, lower smoke box 5b, heat-exchange smoke box 7b and condenser 6 include inlet end and outlet side, the inlet end of waste-heat recoverer 2b is connected with flue gas exhausting pipe line, between the outlet side of waste-heat recoverer 2b and the inlet end of lower smoke box 5b, the outlet side of lower smoke box 5b is all connected by pipeline with between the inlet end of heat-exchange smoke box 7b, and the outlet side of heat-exchange smoke box 7b is connected with chimney; The inlet end of condenser 6 exposes, and the outlet side of condenser 6 is connected with the inlet end of upper smoke box 5a, and the outlet side of upper smoke box 5a is exposed.
Smoke heat energy utilization system also comprises the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline and the 5th pipeline, condenser 6, water tank 7a include water-in and water outlet, the water-in of water tank 7a is connected with cyclic water tank 8 by the first pipeline, the water outlet of water tank 7a is connected with the water-in of condenser 6 by the second pipeline, and the water outlet of condenser 6 is all connected with boiler softened water tank 4, cyclic water tank 8 by the 3rd pipeline; Boiler softened water tank 4 is also connected with drum 2a by the 4th pipeline, be connected with cyclic water tank 8 by the 5th pipeline.
Tornado dust collector 1 are provided with between the inlet end of flue gas exhausting pipe line and waste-heat recoverer 2b.Sack cleaner 3 is provided with between the outlet side of waste-heat recoverer 2b and the inlet end of lower smoke box 5b.
In the utility model embodiment, the working process of smoke heat energy utilization system is as follows:
The temperature of discharging in tripoly phosphate sodium STPP production process is about the flue gas of 300 DEG C, tornado dust collector 1 are caused through flue gas exhausting pipe line, first remove after part tripoly phosphate sodium STPP dust residual in flue gas through tornado dust collector 1, enter in waste-heat recoverer 2b again, first time energy recovery is carried out in waste-heat recoverer 2b, the temperature of flue gas is down to about 200 DEG C (optimum is 180 DEG C), the heat of energy recovery makes to produce steam in drum 2a for the first time, the steam produced is delivered to steam pipe system by steam valve, for production and application.Water in drum 2a reduces because producing steam, and in boiler softened water tank 4, water is delivered in drum 2a and supplements.
The flue gas of about 200 DEG C enters sack cleaner 3, through sack cleaner 3 dedusting, after reducing the content of tripoly phosphate sodium STPP residual in flue gas again, enter in the lower smoke box 5b of air preheater 5, second time energy recovery is carried out in lower smoke box 5b, the temperature of flue gas is made to be down to about 100 DEG C, the heat that second time reclaims concentrates release in upper smoke box 5a, for future, the air of condenser 6 heats, and the warm air producing more than 120 DEG C carries out combustion-supporting for the production of upper product drying or the air-blast system that is delivered directly to polymerization kiln.
By the flue gas of about 100 DEG C after air preheater 5 two energy recovery, enter in the heat-exchange smoke box 7b of water heater 7 again, third time energy recovery is carried out in heat-exchange smoke box 7b, be delivered to chimney after making the temperature of flue gas be down to 60 DEG C-80 DEG C to discharge, the heat energy reclaimed is for heating the water in water tank 7a, the delivery produced in water tank 7a is in condenser 6, carry out preheating to the freezing air in condenser 6, the air themperature after condenser 6 preheating can reach more than 60 DEG C.Air after preheating enters in the upper smoke box 5a of air preheater 5 again and carries out second-heating, simultaneously the heat of increase air and the heat-exchange temperature of raising air; Enter in boiler softened water tank 4 and cyclic water tank 8 by the water after condenser 6 and freezing air carry out heat exchange respectively through the water outlet of condenser 6, enter the water of boiler softened water tank 4 for the water in whole boiler softened water tank 4 is carried out preheating, improve the steam production of drum 2a, the water entered in cyclic water tank 8 again enters in water heater 7 and proceeds thermal cycling.Meanwhile, the water in boiler softened water tank 4 is delivered to cyclic water tank 8 and carries out moisturizing, guarantees that the water in cyclic water tank 8 meets processing requirement.
By third time energy recovery, after the temperature of flue gas is down to 60 DEG C-80 DEG C, in heat-exchange smoke box 7b, produce a large amount of condensed water being dissolved with STPP (sodium tripolyphosphate), the sewage draining exit 7c of condensed water bottom heat-exchange smoke box 7b discharges, and is convenient to recycle the STPP (sodium tripolyphosphate) in condensed water.
Not only the flue gas heat of tripoly phosphate sodium STPP can be carried out the recycling of many steps by native system, the heat utilization rate of flue gas is provided, achieve the steam self-support of tripoly phosphate sodium STPP production station, and produce warm air for product drying or polymerization kiln combustion-supporting, reduce products production energy consumption, also improved the product recovery rate of tripoly phosphate sodium STPP simultaneously by this system, alleviate environmental pollution, reach the environmental requirement of cleaner production.
Those skilled in the art can carry out various modifications and variations to the utility model embodiment; if these amendments and modification are within the scope of the utility model claim and equivalent technologies thereof, then these revise and modification also within protection domain of the present utility model.
The prior art that the content do not described in detail in specification sheets is known to the skilled person.
Claims (4)
1. the smoke heat energy utilization system for the production of tripoly phosphate sodium STPP, comprise waste-heat recovery device (2), described waste-heat recovery device (2) comprises waste-heat recoverer (2b) and drum (2a), waste-heat recoverer (2b) is connected with drum (2a), and drum (2a) is provided with some steam valves for discharged steam; It is characterized in that: described smoke heat energy utilization system also comprises air preheater (5), water heater (7), condenser (6), boiler softened water tank (4) and cyclic water tank (8); Described air preheater (5) comprises upper smoke box (5a) and lower smoke box (5b), upper smoke box (5a) is connected with lower smoke box (5b), water heater (7) comprises water tank (7a) and heat-exchange smoke box (7b), and water tank (7a) is connected with heat-exchange smoke box (7b); Described boiler softened water tank (4) is connected with outside water supply installation;
Described waste-heat recoverer (2b), upper smoke box (5a), lower smoke box (5b), heat-exchange smoke box (7b) and condenser (6) include inlet end and outlet side, the inlet end of waste-heat recoverer (2b) is connected with flue gas exhausting pipe line, between the outlet side of waste-heat recoverer (2b) and the inlet end of lower smoke box (5b), the outlet side of lower smoke box (5b) is all connected by pipeline with between the inlet end of heat-exchange smoke box (7b), and the outlet side of heat-exchange smoke box (7b) is connected with chimney; The inlet end of described condenser (6) exposes, and the outlet side of condenser (6) is connected with the inlet end of upper smoke box (5a), and the outlet side of upper smoke box (5a) is exposed;
Described smoke heat energy utilization system also comprises the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline and the 5th pipeline, described condenser (6), water tank (7a) include water-in and water outlet, the water-in of water tank (7a) is connected with cyclic water tank (8) by the first pipeline, the water outlet of water tank (7a) is connected with the water-in of condenser (6) by the second pipeline, and the water outlet of condenser (6) is all connected with boiler softened water tank (4), cyclic water tank (8) by the 3rd pipeline; Boiler softened water tank (4) is also connected with drum (2a) by the 4th pipeline, and boiler softened water tank (4) is also connected with cyclic water tank (8) by the 5th pipeline.
2., as claimed in claim 1 for the production of the smoke heat energy utilization system of tripoly phosphate sodium STPP, it is characterized in that: between the inlet end of described flue gas exhausting pipe line and waste-heat recoverer (2b), be provided with tornado dust collector (1).
3., as claimed in claim 1 for the production of the smoke heat energy utilization system of tripoly phosphate sodium STPP, it is characterized in that: between the outlet side of described waste-heat recoverer (2b) and the inlet end of lower smoke box (5b), be provided with sack cleaner (3).
4. as claimed any one in claims 1 to 3 for the production of the smoke heat energy utilization system of tripoly phosphate sodium STPP, it is characterized in that: heat-exchange smoke box (7b) bottom of described water heater (7) has sewage draining exit (7c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520693140.1U CN204917977U (en) | 2015-09-08 | 2015-09-08 | A flue gas heat energy comprehensive utilization system for producing sodium tripolyphosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520693140.1U CN204917977U (en) | 2015-09-08 | 2015-09-08 | A flue gas heat energy comprehensive utilization system for producing sodium tripolyphosphate |
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| CN204917977U true CN204917977U (en) | 2015-12-30 |
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| CN201520693140.1U Withdrawn - After Issue CN204917977U (en) | 2015-09-08 | 2015-09-08 | A flue gas heat energy comprehensive utilization system for producing sodium tripolyphosphate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110309A (en) * | 2015-09-08 | 2015-12-02 | 武汉东晟捷能科技有限公司 | Comprehensive utilization system for heat energy of flue gas generated in production of sodium tripolyphosphate |
| CN109268801A (en) * | 2018-09-18 | 2019-01-25 | 湖北武洲新材料科技有限公司 | It is a kind of to carry out the device that the production energy prepares aluminium dihydrogen phosphate using cellar furnace waste heat |
-
2015
- 2015-09-08 CN CN201520693140.1U patent/CN204917977U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110309A (en) * | 2015-09-08 | 2015-12-02 | 武汉东晟捷能科技有限公司 | Comprehensive utilization system for heat energy of flue gas generated in production of sodium tripolyphosphate |
| CN105110309B (en) * | 2015-09-08 | 2017-05-31 | 武汉东晟捷能科技有限公司 | Smoke heat energy utilization system for producing sodium tripolyphosphate |
| CN109268801A (en) * | 2018-09-18 | 2019-01-25 | 湖北武洲新材料科技有限公司 | It is a kind of to carry out the device that the production energy prepares aluminium dihydrogen phosphate using cellar furnace waste heat |
| CN109268801B (en) * | 2018-09-18 | 2019-11-08 | 湖北武洲新材料科技有限公司 | It is a kind of to carry out the device that the production energy prepares aluminium dihydrogen phosphate using cellar furnace waste heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Comprehensive utilization system for heat energy of flue gas generated in production of sodium tripolyphosphate Effective date of registration: 20160906 Granted publication date: 20151230 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: WUHAN DONGSHENG JIENENG TECHNOLOGY CO., LTD. Registration number: 2016420000035 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20170531 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180731 Granted publication date: 20151230 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: WUHAN DONGSHENG JIENENG TECHNOLOGY CO., LTD. Registration number: 2016420000035 |