CN202530099U - Heat exchanger for remained hot water of blast furnace - Google Patents
Heat exchanger for remained hot water of blast furnace Download PDFInfo
- Publication number
- CN202530099U CN202530099U CN2012201720716U CN201220172071U CN202530099U CN 202530099 U CN202530099 U CN 202530099U CN 2012201720716 U CN2012201720716 U CN 2012201720716U CN 201220172071 U CN201220172071 U CN 201220172071U CN 202530099 U CN202530099 U CN 202530099U
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- China
- Prior art keywords
- hot water
- heat exchanger
- blast furnace
- remaining hot
- upper body
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- Expired - Fee Related
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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 relates to a heat exchanger for remained hot water of a blast furnace. The heat exchanger works under special conditions. The heat exchanger comprises an end socket assembly, an upper body, a lower body, a lower cone assembly, landing legs and spiral heat exchange plates; the upper end socket assembly, the upper body and the lower body are integrally welded; the lower cone assembly is connected to the lower body by a bolt and a sealing gasket so as to form a main body of the heat exchanger; two groups of spiral heat exchange plates are arranged in the upper body and the lower body; the upper end socket assembly is provided with a remained hot water inlet; the upper body is provided with a circulating water outlet; the lower body is provided with a circulating water inlet; and the lower cone assembly is provided with a remained hot water outlet. The heat exchanger is used for recovering heat of a large amount of 700-DEG C remained hot water (slag washing water) which is produced in the production process of the blast furnace; a heat exchange working medium can effectively flow in the heat exchanger; and the heat can be effectively utilized.
Description
Technical field
The utility model relates to a kind of interchanger, and the blast furnace remaining hot water interchanger under a kind of specifically special operation condition, this interchanger are used for blast furnace production process and produce a large amount of 70
0The heat recuperation of C remaining hot water (like flushing cinder water).
Background technology
Along with the development of Chinese national economy, building low-carbon (LC) society, building environment-friendly type enterprise is inexorable trend.From point of view of environment protection, iron and steel enterprise should meet the national environmental protection development policies in process of production; As everyone knows, iron and steel enterprise produces a large amount of waste gas, used heat and waste water in process of production, and some iron and steel enterprise carries out fuel gas generation to waste gas, used heat; Variety of ways such as low-temperature electricity-generating are utilized, but the utilization of low-temperature wastewater seldom, if do not utilize this part energy; Need to build burning coal boiler room; Certainly will cause the increase of new consumption of coal, produce a large amount of carbonic acid gas, sulfurous gas, exhaust gas dust and other pollutents etc., cause the deterioration of partial area environment.We can say, build the both uneconomical also not environmental protection of burning coal boiler room, more do not meet the developing direction of current construction low-carbon (LC) society.
The characteristics that iron and steel enterprise produces remaining hot water in process of production are following: 1, many 3, the floss of big by 2, the PM for particulate matter of turbidity is separated out crystallization; Actual measurement is when wastewater temperature and tube wall temperature >=10 ℃; Floss can't move equipment after separating out and rolling up crystallization, also can't be used to heat cryogenic media and carry out sufficient UTILIZATION OF VESIDUAL HEAT IN.
Summary of the invention
The purpose of the utility model be to provide a kind of simple and reasonable, have the good technique manufacturability, can prevent effectively that impure blast furnace remaining hot water from stopping up and prevent that floss from separating out, make full use of the blast furnace remaining hot water interchanger of residual heat resources.
The purpose of the utility model is to realize like this; This interchanger comprises upper cover assembly, upper body, following body, lower cone assembly, supporting leg and spiral heat exchanger plates; Described upper cover assembly, upper body and following body seam are integral, the lower cone assembly adopts bolt and gasket to be connected down the main body that forms interchanger on the body; Two groups of spiral heat exchanger plates are arranged in upper body and the following body, have the remaining hot water inlet on the described upper cover assembly, have circulating water outlet on the upper body; Have the recirculated water inlet on the following body, have the remaining hot water outlet on the lower cone assembly.
The middle part is provided with inspection manhole between described upper body and the following body, and three supporting legs are arranged on down on the body.
Described two groups of spiral heat exchanger plates are connected in series, and the end of spiral heat exchanger plates is adopted and pulled the limit structure.
The utlity model has following advantage and positively effect:
1, the utility model is owing to adopt said structure to make blast furnace remaining hot water interchanger can meet heat-exchange working medium effectively flowing in interchanger, and vertical passage has guaranteed that impurity and PM for particulate matter do not concentrate in the equipment.
2, the utility model combines high temperature heat exchange group and the placed in-line form of low-temperature heat exchange group, little, the detailed type selection calculation of spiral heat transfer temperature difference and in situ temperature monitoring; Make remaining hot water temperature and tube wall temperature＜10 ℃; Thoroughly solve floss and separated out problem; The utility model can increase to many group series connection, has expanded the space of heating low-temperature heat source, makes the heat of blast furnace waste heat obtain more effectively utilizing simultaneously.
3, the utility model combines a large amount of case histories, in five engineering actual motions, has obtained good last effect, and the energy is fully utilized.
4, the utility model is as the thermal recovery unit of remaining hot water, utilizes to produce a large amount of heats of remaining hot water more than 70 ℃ in the blast furnace production process, carries out plant area or municipal administration heating, practiced thrift a large amount of energy.
1., two ends all need welded seal 5, the end face of the utility model spiral heat exchanger plates is pulled the more traditional packing structure of limit structure and possessed following advantage:, the novel texture welding bead has reduced 50%, has reduced welding procedure amount 50%, has reduced and can leak link 50%; 2., cancelled weighting material, reduced material cost, structure is more simplified, more suitable.
Description of drawings
Fig. 1 is the utility model one-piece construction synoptic diagram.
Fig. 2 is the utility model internal structure synoptic diagram.
Fig. 3 is an A-A face sectional view among the utility model Fig. 2.
Fig. 4 is that the utility model spiral heat exchanger plates end face is pulled the limit structural representation.
Embodiment
By accompanying drawing 1,2, shown in 3: this interchanger comprises upper cover assembly 2, upper body 3, following body 6, lower cone assembly 7, supporting leg 9 and spiral heat exchanger plates 11; Described upper cover assembly 2, upper body 3 and following body 6 seam are integral, the lower cone assembly adopts bolt and gasket to be connected down the main body of formation interchanger on the body 6; Two groups of spiral heat exchanger plates 11 are arranged in upper body 3 and the following body 6; Have remaining hot water inlet 1 on the described upper cover assembly 2; Have circulating water outlet 10 on the upper body 3, have recirculated water inlet 5 on the following body 6, have remaining hot water outlet 8 on the lower cone assembly 7;
Being provided with 4, three supporting legs 9 of inspection manhole in the middle part of between described upper body 3 and the following body 6 is arranged on down on the body 6.
Described two groups of spiral heat exchanger plates 11 are connected in series, and shown in accompanying drawing 4: end face 12 places of spiral heat exchanger plates 11 adopt pulls the limit structure.
Principle of work:
Impure blast furnace remaining hot water gets into from the remaining hot water inlet 1 on upper cover assembly 2 tops, and vertical current carries out the two-stage cooling through two groups of 11 of placed in-line spiral heat exchanger plates, flows out after the remaining hot water outlet 8 below lower cone assembly 7 is confluxed.
The heating backwater is entered the mouth by the recirculated water that descends body 6 side lower parts behind 5 access arrangements; Earlier through organizing (low-temperature heat exchange group) down by flowing to centrosome in the screw of outer ring; Warp group switching centre body down upwards flow to the group switching centre body; Pass through the outside helicoidal flow of group (high temperature heat exchange group) again to the outer ring, after the series connection heating, from upper body 3 edgewise circulating water outlet 10 outflow equipment.
The temperature parameter of equipment medium:
Remaining hot water: 75 ℃-62 ℃
Heating water: 60 ℃-70 ℃
High temperature heat exchange group: 65 ℃-70 ℃ in 75 ℃ of-68.5 ℃/heating water of remaining hot water
Low-temperature heat exchange group: 60 ℃-65 ℃ in 68.5 ℃ of-62 ℃/heating water of remaining hot water.
Claims (3)
1. blast furnace remaining hot water interchanger; It is characterized in that: this interchanger comprises upper cover assembly, upper body, following body, lower cone assembly, supporting leg and spiral heat exchanger plates; Described upper cover assembly, upper body and following body seam are integral, the lower cone assembly adopts bolt and gasket to be connected down the main body that forms interchanger on the body; Two groups of spiral heat exchanger plates are arranged in upper body and the following body, have the remaining hot water inlet on the described upper cover assembly, have circulating water outlet on the upper body; Have the recirculated water inlet on the following body, have the remaining hot water outlet on the lower cone assembly.
2. a kind of blast furnace remaining hot water interchanger according to claim 1 is characterized in that: the middle part is provided with inspection manhole between described upper body and the following body, and three supporting legs are arranged on down on the body.
3. a kind of blast furnace remaining hot water interchanger according to claim 1 is characterized in that: described two groups of spiral heat exchanger plates are connected in series, and the end of spiral heat exchanger plates is adopted and pulled the limit structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201720716U CN202530099U (en) | 2012-04-23 | 2012-04-23 | Heat exchanger for remained hot water of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201720716U CN202530099U (en) | 2012-04-23 | 2012-04-23 | Heat exchanger for remained hot water of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202530099U true CN202530099U (en) | 2012-11-14 |
Family
ID=47131295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201720716U Expired - Fee Related CN202530099U (en) | 2012-04-23 | 2012-04-23 | Heat exchanger for remained hot water of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202530099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994668A (en) * | 2012-12-06 | 2013-03-27 | 秦皇岛首秦金属材料有限公司 | Utilization method for waste heat of blast furnace slag |
-
2012
- 2012-04-23 CN CN2012201720716U patent/CN202530099U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994668A (en) * | 2012-12-06 | 2013-03-27 | 秦皇岛首秦金属材料有限公司 | Utilization method for waste heat of blast furnace slag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20160423 |