CN203513702U - Heating system using low-temperature waste heat of blast furnace slag flushing water - Google Patents
Heating system using low-temperature waste heat of blast furnace slag flushing water Download PDFInfo
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- CN203513702U CN203513702U CN201320506124.8U CN201320506124U CN203513702U CN 203513702 U CN203513702 U CN 203513702U CN 201320506124 U CN201320506124 U CN 201320506124U CN 203513702 U CN203513702 U CN 203513702U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000002893 slag Substances 0.000 title claims abstract description 60
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 46
- 238000010438 heat treatment Methods 0.000 title claims abstract description 43
- 239000002918 waste heat Substances 0.000 title claims abstract description 16
- 239000010865 sewage Substances 0.000 claims abstract description 21
- 239000008236 heating water Substances 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims description 11
- 238000009825 accumulation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 21
- 238000012423 maintenance Methods 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000003287 bathing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000013418 Myrtus communis Nutrition 0.000 description 1
- 240000005125 Myrtus communis Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a heating system using the low-temperature waste heat of blast furnace slag flushing water, and relates to a heating system. The heating system is characterized in that a horizontal flow tank is provided with an inlet for leading in the blast furnace slag flushing water in a blast furnace slag flushing water tank, and an outlet of the horizontal flow tank is communicated with a stage filter; a water outlet of the stage filter is communicated with a first water inlet of a non-equidistant heat exchanger; a drain outlet of the stage filter is communicated with a sewage discharge linkage device; and the non-equidistant heat exchanger is provided with a heating water inlet and a heating water delivery pipe as well as a heat exchange backflow pipe connected to the blast furnace slag flushing water tank. Water flowing into the non-equidistant heat exchanger does not contain impurities or contains few impurities through grading filtration, so that the blockage of the non-equidistant heat exchanger is reduced; in addition, as the non-equidistant heat exchanger is in a non-equidistant structure, the blockage and the abrasion caused by sundries in water can be further reduced, thus the maintenance of the whole system caused by blockage and abrasion is decreased, and the maintenance cost of the whole system is reduced, and the stability of system operation is improved.
Description
Technical Field
The utility model relates to a heating system especially relates to a system that can the low temperature waste heat of recycle blast furnace slag flushing water carries out heating.
Background
Representative processes for treating blast furnace slag in various iron and steel plants at present can be classified into a RASA (RASA) method, an under filtration (OCP) method, an INBA (INBA) method, a Tula (TYNA) method, a Myrtle (MTC) method and a Minteck (MTC) method. In the process of utilizing the heat of the slag flushing water, the slag flushing water has different water qualities, so that difficulties of different degrees are met. Most of slag flushing water in the slag treatment process can cause abrasion and blockage to heat-using equipment; in comparison, the slag flushing water in the bottom filtration process has low slag content and light abrasion condition, but the slag wool is continuously separated from the slag water in the use process to cause blockage. In order to achieve the purpose of safely and stably utilizing the heat of the slag flushing water, the problems of abrasion, corrosion and blockage generated in the utilization process of the slag flushing water must be solved.
In recent years, the domestic process for utilizing the heat of the blast furnace slag washing water can be roughly divided into direct utilization and heat exchange utilization, wherein the problems of slag water abrasion, corrosion and blockage are not completely solved by filtering-free direct utilization, and a system is easy to block and cannot stably run; and the problems of slag water abrasion and part of suspended matters blockage are solved by utilizing the filter residue, but slag wool separated out from the slag water can cause system blockage, and the investment and maintenance cost of the filter process are high. The non-filtration direct heat exchange usually adopts a wide-flow-channel heat exchanger, has the problems of abrasion and low heat exchange efficiency, and can not completely solve the problem of blockage; the problems of high investment of the filtering process and high maintenance cost exist in the heat exchange after the filtration, and the problem of blockage of the heat exchanger also exists.
At present, the treatment system for heating by utilizing the waste heat of the blast furnace slag flushing hot water adopts the secondary filtration of the matching of the coarse filtration equipment and the fine filtration equipment, the filtered blast furnace slag flushing hot water enters the heat exchanger again for heat exchange, but the secondary filtration has high equipment investment cost, the filtration effect can not be completely ensured, the problems of pipeline blockage and equipment still exist, frequent maintenance is needed during the heating period, and the maintenance cost is high. At present, a system for heating by utilizing waste heat of blast furnace slag flushing water is provided, a used filter is a full-automatic backwashing fiber bundle filter, a filter element of a fiber bundle filter layer in the filter adopts a mixture of modified polypropylene and polypropylene fibers, but the filter layer of the filter has a complex structure and high investment cost, and the problems of frequent blockage and high maintenance cost during heating also exist.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an utilize heating system of blast furnace slag flushing water low temperature waste heat, debris in the blast furnace slag flushing water of can effectively filtering avoids blockking up the heat exchanger to solve the easy problem of blockking up of the heat transfer system who has now utilized blast furnace slag flushing water waste heat, maintain with high costs in the use.
In order to solve the technical problem, the utility model provides an utilize heating system of blast furnace slag flushing water low temperature waste heat, include:
the device comprises a advection pool, a grading filter, an unequal distance heat exchanger and a sewage discharge linkage device; wherein,
the advection pool is provided with an inlet for introducing blast furnace slag flushing water into the blast furnace slag flushing water pool, and an outlet of the advection pool is communicated with the grading filter;
the water outlet of the grading filter is communicated with the first water inlet of the unequal-distance heat exchanger; the sewage discharge port of the grading filter is communicated with the sewage discharge linkage device;
the unequal heat exchanger is provided with a heating water inlet, a heating water output pipe, a heat exchange water inlet and a heat exchange return pipe, wherein the heat exchange water inlet and the heat exchange return pipe are connected with the blast furnace slag flushing water tank.
The utility model discloses a through advection pond, whirl dirt separator and graded filter cooperation form the filtration in grades, can ensure that the water that flows into the unequal distance heat exchanger does not contain or contain slag and debris less, the jam to the unequal distance heat exchanger has been reduced, and the unequal distance access structure that unequal distance heat exchanger self has, also can further reduce jam and the wearing and tearing that aquatic debris caused, thereby reduce the maintenance that entire system goes on to jam and wearing and tearing, reduce entire system's maintenance cost, the stability of system operation has been improved, the utilization efficiency to blast furnace slag flushing water waste heat has also been improved, this heating system structure is simple relatively in addition, the investment is less.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a heating system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a graded filter of a heating system according to an embodiment of the present invention;
fig. 2a is a schematic diagram of a first separation filter of a classification filter of a heating system according to an embodiment of the present invention;
FIG. 2b is a schematic diagram of a cyclone dirt separator of a staged filter of a heating system according to an embodiment of the present invention;
fig. 2c is a top view of a cyclone scrubber of a staged filter of a heating system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an unequal distance heat exchanger of a heating system according to an embodiment of the present invention;
fig. 3a is an overall schematic view of an unequal distance heat exchanger of a heating system according to an embodiment of the present invention;
fig. 3b is a schematic side view of an unequal-pitch heat exchanger according to an embodiment of the present invention;
fig. 3c is a schematic cross-sectional view of a heat exchange plate of an unequal-distance heat exchanger according to an embodiment of the present invention;
fig. 3d is a schematic diagram of a water flowing direction in the unequal heat exchanger according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of 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.
As shown in fig. 1, an embodiment of the present invention provides a heating system using low-temperature waste heat of blast furnace slag flushing water, as shown in fig. 1, the system includes: the device comprises a advection pool 1, a grading filter 2, an unequal distance heat exchanger 3 and a sewage discharge linkage device 4;
wherein, the advection pool 1 is provided with an inlet for introducing blast furnace slag flushing water into the blast furnace slag flushing water pool 10, and an outlet of the advection pool 1 is communicated with the grading filter 2;
the water outlet of the grading filter 2 is communicated with a first water inlet 31 of the unequal distance heat exchanger 3; the sewage discharge port of the grading filter 2 is communicated with the sewage discharge linkage device 4;
the heat exchanger 3 with unequal intervals is provided with a heating water inlet 32, a heating water outlet pipe 33 and a heat exchange return pipe 34 connected with the blast furnace slag flushing water tank 10.
Among the above-mentioned heating system, still be equipped with water delivery pump 11 on the output pipeline of advection pond 1, can squeeze into classifying filter 2 with the pressurized mode with advection pond 1 play water through water delivery pump 11 to realize better filter effect in classifying filter 2.
As shown in fig. 2, in the heating system, the classifying filter 2 includes: first and second separation filters 21 and 22 and a cyclone 23; wherein the first separation filter 21 is connected to the second separation filter 22 and the cyclone scrubber 23 in this order.
Further, the first and second separation filters 21 and 22 of the classifying filter 2 have the same structure, and the structure of the first separation filter 21 will be described below by way of example, and as shown in fig. 2a, the first separation filter 21 includes: the cyclone chamber 211 and the settling chamber 212,
wherein, the cyclone chamber 211 is arranged above the settling chamber 212 and is communicated with the settling chamber 211; the inner wall of the cyclone chamber 211 is circular;
a water inlet 213 is arranged on the side wall of the cyclone chamber 211; by arranging the water inlet 213 on the side wall, the water entering the cyclone chamber 211 can be ensured to rotate along the inner wall of the cyclone chamber 211 and descend to the settling chamber 212;
the height of the settling chamber 212 is lower than the height of the cyclone chamber 211, and the cross-sectional area of the cyclone chamber 211 is smaller than the cross-sectional area of the settling chamber 212, so that it is ensured that water enters the settling chamber 212 for settling after the cyclone chamber 211 rotates sufficiently.
The cyclone scrubber 23 of the classifying filter 2 is a third stage filtering device, and the structure of the cyclone scrubber is shown in fig. 2b, and comprises: a water inlet pipe 231, a cylinder 230, a sewage discharge pipe 232, a sewage discharge valve, a sewage accumulation hopper, a water outlet pipe 233, a filter screen and an exhaust pipe 235;
wherein, the water inlet pipe 231 is arranged on the side wall of the cylinder 230 and communicated with the inside of the cylinder 230;
the drain pipe 232 is arranged at the bottom of the cylinder 230 and is communicated with the inside of the cylinder 230;
a drain valve is arranged on the drain pipe 232; a dirt collecting hopper is arranged in the cylinder body 230 above the sewage draining pipe 232;
the water outlet pipe 233 is arranged at the top of the cylinder 230 and communicated with the cylinder 230, and a filter screen is arranged in the water outlet pipe 233;
an exhaust pipe 235 is provided at the top of the cylinder 230.
The cyclone dirt separator with the structure can remove impurities in the water after the water is treated by the first separating filter and the second separating filter in a cyclone mode, and the water is settled and discharged from the bottom, so that cleaner discharged water is discharged from the upper water outlet pipe, and the possibility of blocking the unequal-distance heat exchanger subsequently is effectively reduced.
Preferably, the filter screen in the cyclone dirt separator can adopt a filter screen with the mesh diameter of 3.5-4 mm;
preferably, the cylinder 230 of the cyclone dirt separator has a cylindrical structure, and the bottom of the cylinder may be provided with a supporting foot.
Further, the cyclone dirt separator may further include a dirt discharge observation port 234 formed in a side wall of the cylinder 230, and a sealing cover is provided thereon to facilitate observation of the treatment conditions in the cyclone dirt separator and to facilitate cleaning of the impurities blocked by the filter screen in the cyclone dirt separator.
In the above heating system, the unequal heat exchanger 3 has a configuration as shown in fig. 3, 3a, and 3b, and includes: a plurality of heat exchange plate sheets 303, a fixed clamping plate 301, a movable clamping plate 302, a rubber plate 308, upper and lower guide rods 305 and 306, a heating water output pipe 3013, a heat exchange return pipe 3012, a clamping bolt 307 and a strut 3010;
wherein, two plate surfaces of each heat exchange plate 303 are provided with a plurality of concave channels diagonally communicated along the plate surface, and the widths of the concave channels on the two plate surfaces are unequal, that is, the concave channels with unequal distances are arranged on two surfaces of the same heat exchange plate 302; thus, after a plurality of heat exchange plates are pressed side by side, a channel is formed between the two heat exchange plates; because the concave channels arranged on the two sides of the same heat exchange plate 302 are not equidistant, the channels formed on the two sides of the same heat exchange plate are not equidistant; the wider channel can be used for running blast furnace slag flushing water to avoid blockage, and the narrower channel can be used for running heating water;
the rubber plate 308 is arranged on the inner side surface of the fixed clamping plate 301; a strut 3010 is arranged on the outer side surface of the movable clamping plate 302;
the plurality of heat exchange plate sheets 303 are arranged between the fixed clamping plate 301 and the movable clamping plate 302 in a side-by-side compression manner, two channels 3031 and 3032 which are not communicated with each other are formed between the heat exchange plate sheets 303 through the concave channels on the plate surfaces of the heat exchange plate sheets, one end of the first channel 3031 is provided with a heating water inlet 3014, the other end of the first channel 3031 is connected with the heating water output pipe 3013, one end of the second channel 3032 is provided with a heat exchange water inlet 3011, and the other end of the second channel 3032 is connected with the heat exchange return pipe 3012; the width of the first channel 3031 (for supplying hot water) is narrower than that of the second channel 3012 (for supplying blast furnace slag washing water) (see fig. 3C), and the upper and lower ends of the plurality of heat exchange plate sheets 302 are respectively connected with the fixed clamping plate 301 and the movable clamping plate 302 through the upper and lower guide rods 305 and 306; specifically, the upper and lower ends of each heat exchange plate are respectively provided with a groove for clamping the upper and lower guide rods 305, 306, and each heat exchange plate is clamped on the upper and lower guide rods 305, 306 through the groove;
the side edges of the fixed clamping plate 301 and the movable clamping plate 302 are fixedly connected by a clamping bolt 307.
As shown in fig. 3c, in the non-equidistant heat exchanger, the width of the first channel 3031 is 6mm, and the width of the second channel 3032 is 15 mm.
As shown in fig. 3D, in the non-equidistant heat exchanger, the blast furnace slag flushing water flows in from the arrow direction shown by B, flows in the second channel of the non-equidistant heat exchanger to D and flows out as shown by the arrow, the heating water flows in from the arrow direction shown by a, and flows in the first channel of the non-equidistant heat exchanger to C and flows out as shown by the arrow, and the first channel and the second channel are arranged at intervals between the heat exchange plates of the non-equidistant heat exchanger, so that effective heat exchange between the blast furnace slag flushing water and the heating water can be realized, and the second channel is wider, so that blockage caused by impurities in the blast furnace slag flushing water is avoided.
The unequal-distance heat exchanger with the structure can well solve the problems of serious abrasion, corrosion and blockage of blast furnace slag flushing water during equipment use by arranging the unequal-distance heat exchange channels, and compared with a common plate heat exchanger, the unequal-distance heat exchanger has the advantage that a medium is easy to block between plates because the plate distance is relatively narrow. The distance between the plates with different distances is relatively large, and the defect that the medium is easy to block is overcome.
The utility model discloses an utilize heating system of blast furnace slag flushing water low temperature waste heat, be to the novel slag flushing water heat transfer system of the heat design of this special medium of iron-smelting slag flushing water, through equipment cooperation such as unequal distance heat exchangers of slag water stage treatment with having unequal distance runner, fine utilization slag flushing water that has overcome exists with high costs, easy jam scheduling problem, it is little to have an investment, the maintenance volume is little, the process is reliable to sediment and suspended solid precipitation, to the compatible gauge of slag water operating mode, prevent to block up, can utilize the thermal heating system of slag flushing water as each ironworks.
The heating system of the present invention will be described in further detail with reference to the drawings and the usage process.
When the heating system is used, blast furnace slag flushing water enters the first separating filter, the second separating filter and the cyclone dirt remover of the grading filter after passing through the advection pool, most solid particles are removed, fine particles and suspended solids are removed through filtering, dirt impurities can be discharged manually or automatically at regular time from a lower end sewage outlet of the equipment, and therefore the requirement that the heat exchange system is not blocked is met.
Through the utility model discloses a heating system utilizes blast furnace slag flushing water waste heat resource to supply heat and has very big advantage, can avoid building the boiler room, and does not need the coal yard, handles the lime-ash to reduce area, energy saving, environmental protection is significant, accords with national energy saving and emission reduction policy. The method has obvious economic, social and environmental benefits for the northern area with steel plants.
The boiler for industrial production is of a type with a common rated steam quantity of 10t/h and a thermal efficiency of more than or equal to 78%, the coal consumption per hour is 4t, the boiler for domestic bathing of enterprises and workers is of a type with a rated steam quantity of 6t/h, the coal consumption per hour is 0.82t, and the heating period is calculated according to 120 d/a.
The total annual coal consumption of the boiler room is as follows: 4t × 24h × 120d +0.82t × 12h × 365d =15112t/a
Calculated according to the efficiency of 78 percent of the boiler, the raw coal consumption is 19374 t.
Then, the total amount of coal consumed by heating and bathing of the enterprise is 19374t, and the annual consumption of raw coal is 21527t and reduced to 15377tce of standard coal, considering unpredictable 10% consumption. About 9324.8 ten thousand yuan.
The operation cost of the blast furnace slag washing water heating system comprises: electricity consumption in heating season, new water consumption, labor cost and maintenance cost. The operation cost of a single heating season is about 180 ten thousand yuan.
The heating system for the slag flushing water in the heating period has the following benefits:
9324.8-180 =9144.8 ten thousand yuan
Meanwhile, the waste heat utilization technology of the blast furnace slag washing water can reduce the emission of carbon dioxide, sulfur dioxide, nitrogen oxides, hydrocarbons and smoke dust.
The non-heating time can supply the waste heat, refrigerate and generate electricity, and the benefit is still considerable.
The process technology has the advantages of short recovery period, saving resources, electricity and water for enterprises, and has the function of reducing the temperature of the slag flushing water tank by 10 ℃ on average through heat exchange, so that the production recycling efficiency is improved, and the production cost is reduced.
The utility model discloses an among the heating system, the usable end filtering pond of advection pond replaces, and follow-up process equipment configuration is the same, forms end filtering pond + hierarchical filtration + diagonal angle inequality plate heat exchanger's heating system, and its result of use is unanimous basically with the advection pond.
Furthermore, the grading filter in the heating system of the utility model can also adopt coarse filtration and fine filtration or multi-stage filtration equipment.
Further, the utility model discloses the unequal plate heat exchanger in diagonal angle among the heating system changes other corrosion-resistant high performance metal material plate heat exchangers that rinse into and replaces.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A heating system using low-temperature waste heat of blast furnace slag flushing water is characterized by comprising:
the device comprises a advection pool, a grading filter, an unequal distance heat exchanger and a sewage discharge linkage device; wherein,
the advection pool is provided with an inlet for introducing blast furnace slag flushing water into the blast furnace slag flushing water pool, and an outlet of the advection pool is communicated with the grading filter;
the water outlet of the grading filter is communicated with the first water inlet of the unequal-distance heat exchanger; the sewage discharge port of the grading filter is communicated with the sewage discharge linkage device;
the unequal heat exchanger is provided with a heating water inlet, a heating water output pipe, a heat exchange water inlet and a heat exchange return pipe, wherein the heat exchange water inlet and the heat exchange return pipe are connected with the blast furnace slag flushing water tank.
2. The system of claim 1, wherein the output line of the advection pool is further provided with a water delivery pump.
3. The system of claim 1 or 2, wherein the classification filter comprises:
the first separating filter, the second separating filter and the cyclone dirt separator; wherein,
the first separation filter is sequentially connected with the second separation filter and the cyclone dirt separator.
4. The system of claim 3, wherein the first and second separation filters are identical in construction, the first separation filter comprising:
a swirl chamber and a settling chamber, wherein,
the cyclone chamber is arranged above the settling chamber and is communicated with the settling chamber;
a water inlet is formed in the side wall of the cyclone chamber;
the height of the settling chamber is lower than that of the cyclone chamber.
5. The system of claim 3, wherein the cyclone dirt separator comprises:
the sewage treatment device comprises a water inlet pipe, a barrel, a sewage discharge pipe, a sewage discharge valve, a sewage accumulation hopper, a water outlet pipe, a filter screen and an exhaust pipe; wherein,
the water inlet pipe is arranged on the side wall of the cylinder body and communicated with the inside of the cylinder body;
the blow-off pipe is arranged at the bottom of the barrel and is communicated with the inside of the barrel;
the blow-off pipe is provided with the blow-off valve;
the inside of the barrel above the sewage discharge pipe is provided with the sewage accumulation hopper;
the water outlet pipe is arranged at the top of the cylinder body and communicated with the inside of the cylinder body, and the filter screen is arranged in the water outlet pipe;
the exhaust pipe is arranged at the top of the cylinder body.
6. The system of claim 5, wherein the mesh diameter of the filter screen is 3.5 to 4 mm;
the barrel is of a cylindrical structure, and supporting bottom feet are arranged at the bottom of the barrel.
7. The system of claim 5, further comprising: and the pollution discharge observation port is arranged on the side wall of the cylinder body, and is provided with a sealing cover.
8. The system of claim 1, wherein the non-equidistant heat exchangers comprise:
the heat exchange device comprises a plurality of heat exchange plate sheets, a fixed clamping plate, a movable clamping plate, a rubber plate, an upper guide rod, a lower guide rod, a heating water output pipe, a heat exchange backflow pipe, a clamping bolt and a support;
the plate surfaces on the two sides of each heat exchange plate are respectively provided with a plurality of concave channels which are communicated along the opposite angles of the plate surfaces, and the widths of the concave channels on the plate surfaces on the two sides are not equal;
the rubber plate is arranged on the inner side surface of the fixed clamping plate; the outer side surface of the movable clamping plate is provided with the strut;
the heat exchange plates are arranged between the fixed clamping plate and the movable clamping plate in a side-by-side pressing mode, two channels which are not communicated with each other are formed between the heat exchange plates through the concave channels on the plate surfaces of the heat exchange plates by the pressed heat exchange plates, a heating water inlet is formed in one end of each channel, the other end of each channel is connected with the heating water output pipe, a heat exchange water inlet is formed in one end of each channel, and the other end of each channel is connected with the heat exchange return pipe; the width of the first channel is narrower than that of the second channel, and the upper end and the lower end of the plurality of heat exchange plates are respectively connected with the fixed clamping plate and the movable clamping plate through upper guide rods and lower guide rods;
the side edges of the fixed clamping plate and the movable clamping plate are fixedly connected through the clamping bolts.
9. The system of claim 8, wherein the first channel has a width of 6 mm.
10. The system of claim 8 or 9, wherein the width of the second channel is 15 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320506124.8U CN203513702U (en) | 2013-08-19 | 2013-08-19 | Heating system using low-temperature waste heat of blast furnace slag flushing water |
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| CN201320506124.8U CN203513702U (en) | 2013-08-19 | 2013-08-19 | Heating system using low-temperature waste heat of blast furnace slag flushing water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436645A (en) * | 2013-08-19 | 2013-12-11 | 北京国信安科技术有限公司 | Heat supply system using low temperature waste heat of slag flushing water in blast furnace |
| CN112303911A (en) * | 2019-07-31 | 2021-02-02 | 芜湖美的厨卫电器制造有限公司 | Gas burning equipment |
| CN113699286A (en) * | 2021-08-23 | 2021-11-26 | 江苏鑫特尔冶金机械制造有限公司 | Wear-resistant slag flushing system with internally-adhered ceramic lining plate |
-
2013
- 2013-08-19 CN CN201320506124.8U patent/CN203513702U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436645A (en) * | 2013-08-19 | 2013-12-11 | 北京国信安科技术有限公司 | Heat supply system using low temperature waste heat of slag flushing water in blast furnace |
| CN112303911A (en) * | 2019-07-31 | 2021-02-02 | 芜湖美的厨卫电器制造有限公司 | Gas burning equipment |
| CN113699286A (en) * | 2021-08-23 | 2021-11-26 | 江苏鑫特尔冶金机械制造有限公司 | Wear-resistant slag flushing system with internally-adhered ceramic lining plate |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20150422 |