CN201914929U - Chloride process titanium dioxide energy-saving preheater - Google Patents

Chloride process titanium dioxide energy-saving preheater Download PDF

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Publication number
CN201914929U
CN201914929U CN201020679596XU CN201020679596U CN201914929U CN 201914929 U CN201914929 U CN 201914929U CN 201020679596X U CN201020679596X U CN 201020679596XU CN 201020679596 U CN201020679596 U CN 201020679596U CN 201914929 U CN201914929 U CN 201914929U
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CN
China
Prior art keywords
combustion chamber
titanium tetrachloride
oxygen
preheater
titanium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201020679596XU
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Chinese (zh)
Inventor
刘长河
朱德坤
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Jinzhou Titanium Industry Co Ltd
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Jinzhou Titanium Industry Co Ltd
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Filing date
Publication date
Application filed by Jinzhou Titanium Industry Co Ltd filed Critical Jinzhou Titanium Industry Co Ltd
Priority to CN201020679596XU priority Critical patent/CN201914929U/en
Application granted granted Critical
Publication of CN201914929U publication Critical patent/CN201914929U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Abstract

The utility model relates to a chloride process titanium dioxide energy-saving preheater, which comprises an oxygen combustion chamber and a titanium tetrachloride combustion chamber, wherein the top surface of the titanium tetrachloride combustion chamber is provided with a chimney; an oxygen preheating furnace tube and a titanium tetrachloride preheating furnace tube are respectively arranged in the oxygen combustion chamber and the titanium tetrachloride combustion chamber; an oxygen combustor and a titanium tetrachloride combustor are respectively arranged on the bottoms in the oxygen combustion chamber and the titanium tetrachloride combustion chamber; the outlets of the oxygen preheating furnace tube and the titanium tetrachloride preheating furnace tube are provided with temperature sensors; and a temperature control unit is formed by the temperature sensors and a regulating valve. The preheater is characterized in that the oxygen combustion chamber and the titanium tetrachloride combustion chamber are integrated in one holding furnace shell and are separated by a fire resistant wall arranged at the middle part in the holding furnace shell, and the fire resistant wall is provided with a plurality of through holes to enable the oxygen combustion chamber and the titanium tetrachloride combustion chamber to be communicated. The utility model has the advantages that heat energy generated by a fuel can be fully utilized, and thereby, the thermal efficiency of the preheater is improved, energy is saved and the preheating temperature of a medium is stably controlled.

Description

The energy-saving preheater of chloride process titanium dioxide
Technical field
The utility model relates to oxygen and the titanium tetrachloride preheat apparatus device that the chloride process titanium dioxide production technique is used, the energy-saving preheater of particularly a kind of chloride process titanium dioxide.
Background technology
Titanium tetrachloride preheater and oxygen preheat device are the equipment that heats oxygen and titanium tetrachloride in the chloride process titanium dioxide production technique, and titanium tetrachloride after the process preheating and oxygen enter reaction unit respectively and carries out gas phase oxidation production titanium dioxide.
The preheating of oxygen and titanium tetrachloride is controlled for convenience and is set out in the at present domestic and international chloride process titanium dioxide production technique, all be designed to the preheater of independent split, be that oxygen and titanium tetrachloride carry out in two independent preheaters respectively, the preheating temperature height of oxygen control, the thermo-efficiency of preheater is low; The thermo-efficiency of titanium tetrachloride preheater slightly is better than the oxygen preheat device, total thermo-efficiency less than 50%, and the energy (diesel oil or Sweet natural gas) utilising efficiency is low.
Summary of the invention
The utility model will solve the problem that existing installation thermo-efficiency is low, energy utilization rate is low, provides a kind of chloride process titanium dioxide energy-saving preheater.
Technical solution of the present utility model is: it has an oxygen combustion chamber and titanium tetrachloride combustion chamber, end face is provided with chimney in the titanium tetrachloride combustion chamber, in oxygen combustion chamber and titanium tetrachloride combustion chamber, be respectively equipped with oxygen preheat boiler tube and titanium tetrachloride preheating boiler tube, be provided with oxygen burner and titanium tetrachloride burner in oxygen combustion chamber and titanium tetrachloride combustion chamber inner bottom part, be provided with temperature sensor at oxygen preheat boiler tube and the outlet of titanium tetrachloride preheating boiler tube, described temperature sensor and Controlling System constitute temperature control unit with the variable valve that is connected on oxygen burner and titanium tetrachloride burner inlet, its special character is: described oxygen combustion chamber and titanium tetrachloride combustion chamber are integrated in the insulation furnace shell and by the refractory wall that is located at middle part in the insulation furnace shell and are separated by, and be provided with a plurality of through holes on refractory wall oxygen combustion chamber and titanium tetrachloride combustion chamber are communicated.
The energy-saving preheater of above-mentioned chloride process titanium dioxide, between titanium tetrachloride combustion chamber and chimney, be provided with waste-heat recovery device, in waste-heat recovery device, be provided with the deionized water pipeline, deionized water entrance and outlet are drawn by waste-heat recovery device, recyclable waste heat is fully used burner gas residual heat.
The energy-saving preheater of above-mentioned chloride process titanium dioxide, described Controlling System are the DCS Controlling System.
This preheater becomes a preheater to two ingenious series combinations of (oxygen, titanium tetrachloride) preheater, and separately independently (Sweet natural gas or diesel oil) burner is installed in bottom, two combustion chambers, can distinguish regulating and controlling fuel quantity, combustion-supporting gas flow.The first step is carried out oxygen preheat in the oxygen combustion chamber, and high-temperature furnace gas can reach and enter preheating titanium tetrachloride in titanium tetrachloride combustion chamber more than 700 ℃, and final furnace gas flows through waste-heat recovery device heating deionized water, and the heat energy that fuel is produced is fully used.Thereby improve preheater thermo-efficiency, and recyclable waste heat, burner gas residual heat is fully used, save energy is stablized the control agent preheating temperature.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: titanium tetrachloride combustion chamber 1, fuel control valve 2, compressed air regulating valve 3, titanium tetrachloride burner 4, refractory wall 5, fuel control valve 6, Controlling System 7, compressed air regulating valve 8, temperature sensor 9, oxygen burner 10, insulation furnace shell 11, oxygen combustion chamber 12, oxygen preheat boiler tube 13, titanium tetrachloride preheating boiler tube 14, chimney 15, thermometer 16, deionized water pipeline 17, waste-heat recovery device 18, explosive door 19.
Embodiment
As shown in the figure, the utility model has an oxygen combustion chamber 12 and titanium tetrachloride combustion chamber 1, described oxygen combustion chamber 12 and titanium tetrachloride combustion chamber 1 are integrated in the insulation furnace shell 11 and by the refractory wall 5 that is located at middle part in the insulation furnace shell 11 and are separated by, be provided with a plurality of through holes on refractory wall 5 oxygen combustion chamber 12 and titanium tetrachloride combustion chamber 1 are communicated, 1 place, corresponding titanium tetrachloride combustion chamber is provided with explosive door 19 on insulation furnace shell 11.In oxygen combustion chamber 12 and titanium tetrachloride combustion chamber 1, be respectively equipped with oxygen preheat boiler tube 13 and titanium tetrachloride preheating boiler tube 14, be provided with oxygen burner 10 and titanium tetrachloride burner 4 in oxygen combustion chamber 12 and titanium tetrachloride combustion chamber 1 inner bottom part, be provided with temperature sensor 9 at oxygen preheat boiler tube 13 and 14 outlets of titanium tetrachloride preheating boiler tube, described temperature sensor 9 is with Controlling System 7 and be connected on oxygen burner 10 respectively and the compressed air regulating valve 8 and 3 of titanium tetrachloride burner 4 inlets, fuel control valve 6 and 2 constitutes temperature control unit, be used for ensureing that the medium temperature of oxygen preheat boiler tube 13 and 14 outlets of titanium tetrachloride preheating boiler tube satisfies processing requirement, described Controlling System can adopt the DCS Controlling System.1 inner top is provided with waste-heat recovery device 18 in the titanium tetrachloride combustion chamber, in waste-heat recovery device 18, be provided with deionized water pipeline 17, be provided with thermometer 16 in 17 outlets of deionized water pipeline, deionized water pipeline 17 entrance and exits are drawn by waste-heat recovery device 18, are provided with chimney 15 at waste-heat recovery device 16 end faces.
During work, utilize the high-temperature furnace gas of oxygen combustion chamber 12, the refractory wall 5 of flowing through enters titanium tetrachloride combustion chamber 1 heating titanium tetrachloride, and the burner 4 of bottom can complementary heating, final burner gas residual heat reclaims with deionized water heating unit 18, and hot water uses for postprocessing working procedures.

Claims (3)

1. energy-saving preheater of chloride process titanium dioxide, comprise oxygen combustion chamber and titanium tetrachloride combustion chamber, end face is provided with chimney in the titanium tetrachloride combustion chamber, in oxygen combustion chamber and titanium tetrachloride combustion chamber, be respectively equipped with oxygen preheat boiler tube and titanium tetrachloride preheating boiler tube, be provided with oxygen burner and titanium tetrachloride burner in oxygen combustion chamber and titanium tetrachloride combustion chamber inner bottom part, be provided with temperature sensor at oxygen preheat boiler tube and the outlet of titanium tetrachloride preheating boiler tube, described temperature sensor and Controlling System constitute temperature control unit with the variable valve that is connected on oxygen burner and titanium tetrachloride burner inlet, it is characterized in that: described oxygen combustion chamber and titanium tetrachloride combustion chamber are integrated in the insulation furnace shell and by the refractory wall that is located at middle part in the insulation furnace shell and are separated by, and be provided with a plurality of through holes on refractory wall oxygen combustion chamber and titanium tetrachloride combustion chamber are communicated.
2. the energy-saving preheater of chloride process titanium dioxide according to claim 1, it is characterized in that: between titanium tetrachloride combustion chamber and chimney, be provided with waste-heat recovery device, be provided with the deionized water pipeline in waste-heat recovery device, deionized water entrance and outlet are drawn by waste-heat recovery device.
3. the energy-saving preheater of chloride process titanium dioxide according to claim 1 is characterized in that: described Controlling System is the DCS Controlling System.
CN201020679596XU 2010-12-25 2010-12-25 Chloride process titanium dioxide energy-saving preheater Expired - Fee Related CN201914929U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201020679596XU CN201914929U (en) 2010-12-25 2010-12-25 Chloride process titanium dioxide energy-saving preheater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201020679596XU CN201914929U (en) 2010-12-25 2010-12-25 Chloride process titanium dioxide energy-saving preheater

Publications (1)

Publication Number Publication Date
CN201914929U true CN201914929U (en) 2011-08-03

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Country Status (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103542744A (en) * 2013-09-30 2014-01-29 东华工程科技股份有限公司 Titanium tetrachloride preheater
CN103663551A (en) * 2013-12-09 2014-03-26 云南新立有色金属有限公司 Method and system for preparing titanium dioxide
CN103723762A (en) * 2013-12-09 2014-04-16 云南新立有色金属有限公司 Titanium tetrachloride preheater
CN103884094A (en) * 2013-12-09 2014-06-25 云南新立有色金属有限公司 Oxygen preheater

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103542744A (en) * 2013-09-30 2014-01-29 东华工程科技股份有限公司 Titanium tetrachloride preheater
CN103663551A (en) * 2013-12-09 2014-03-26 云南新立有色金属有限公司 Method and system for preparing titanium dioxide
CN103723762A (en) * 2013-12-09 2014-04-16 云南新立有色金属有限公司 Titanium tetrachloride preheater
CN103884094A (en) * 2013-12-09 2014-06-25 云南新立有色金属有限公司 Oxygen preheater
CN103663551B (en) * 2013-12-09 2016-08-10 云南冶金新立钛业有限公司 The method preparing titanium dioxide
CN103884094B (en) * 2013-12-09 2017-02-22 云南冶金新立钛业有限公司 Oxygen preheater

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110803

Termination date: 20181225

CF01 Termination of patent right due to non-payment of annual fee