CN201926302U - Mineral calcination testing system - Google Patents
Mineral calcination testing system Download PDFInfo
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- CN201926302U CN201926302U CN2010206910258U CN201020691025U CN201926302U CN 201926302 U CN201926302 U CN 201926302U CN 2010206910258 U CN2010206910258 U CN 2010206910258U CN 201020691025 U CN201020691025 U CN 201020691025U CN 201926302 U CN201926302 U CN 201926302U
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- rotary kiln
- calcination
- preheater
- burner
- mineral
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Abstract
A mineral calcination testing system mainly comprises a preheater, a rotary kiln and a cooling bin, wherein a discharge hole arranged on the reheater is connected and communicated with one end of the rotary kiln through a conveying channel which is arranged obliquely; a discharge hole at the other end of the rotary kiln is connected with the cooling bin; the rotary kiln is internally provided with a burner; and the burner is connected with a gas valve bank. The mineral calcination testing system can realize the adjustment control on the temperature of each procedure segment through the adjustment on the gas flowrate of the burner, the air flowrate and the pressure of a combustion fan, as well as the air flowrate and the pressure of an induced draft fan; the adjustment control on the time of each procedure segment can be realized by the adjustment on the blanking frequency of the push rod of the preheater, the rotation speed of the cylinder body of the rotary kiln, and the opening frequency of the discharge door of the cooling bin; the internal pressure and temperature of the system are controlled externally, so that the parameter measurment in each link of ore calcination under actual working conditions is realized easily.
Description
Technical field
The utility model belongs to the calcination of minerals processing technology field, relates to a kind of pilot system that various calcination of minerals are handled specifically.
Background technology
At present, in industries such as metallurgical, coloured, papermaking, there are every year a large amount of lime stones, dolomite, the smart sphere of powder of iron group etc. need carry out calcination processing, about 5,000 ten thousand tons of the annual need in the whole nation to the treating capacity of above various mineral, the only annual calcination of minerals system that increases newly just reaches 10～20, the mineralogical composition and the physical property of various places vary, and each enterprise also has nothing in common with each other to the requirement that calcination of minerals is handled.It is the thermal process of a complexity that materials such as the smart sphere of powder of lime stone, dolomite, iron group become active lime, light dolomite, acid pellet respectively through high-temperature calcination, existing physical change has chemical change again, how can make the calcining pilot system that adapts so that use in actual engineering design at different raw mineral materials and different processing requirements, be the key that improves the calcination of minerals production technology.
Before this, the calcination of minerals test is all carried out at the indoor Muffle furnace of test, and Muffle furnace is an enclosed housing, and material is put into the back and reached the calcining purpose by electrical heating intensification-insulating process.Mineral are calcined test and are belonged to static blocking test in Muffle furnace, do not have the work condition environment of actual production, therefore the various parameters of measuring ore calcination under actual condition that the test of the calcining in Muffle furnace can not be correct.
The utility model content
The purpose of this utility model is to be the deficiency that solves the problems of the technologies described above, and a kind of calcination of minerals pilot system is provided, this system architecture is simple, can control internal system pressure, temperature, has realized that ore calcination under the actual condition tests the parameter measurement of each link.
The utility model is the deficiency that solves the problems of the technologies described above, the technical scheme that is adopted is: a kind of calcination of minerals pilot system, mainly constitute by preheater, rotary kiln, cooling storehouse, being arranged on discharge gate on the preheater is connected with an end of rotary kiln by the transfer passage that is obliquely installed and communicates, the other end discharging opening of rotary kiln is connected with the cooling storehouse, be provided with burner in the described rotary kiln, burner is connected with the gas valve group.
Also be provided with exhaust outlet on the described preheater, exhaust outlet links by pipeline and air-introduced machine, also is provided with deduster on the connecting line between exhaust outlet and the air-introduced machine.
Also be provided with the push rod that promotes mineral in the described preheater.
The beneficial effects of the utility model are:
1, native system to the regulation and control of each procedure segment temperature can be by adjusting burner the air mass flow of gas flow, combustion fan and pressure, air-introduced machine flow and pressure wait and realize; The frequency that the regulation and control of each procedure segment time can be by adjusting the blanking of preheater push rod, the rotating speed of cylinder of rotary kiln, the frequency that cooling storehouse Dump gate is opened wait and realize; By external control system internal pressure, temperature, easily realize the parameter measurement of each link of ore calcination under the actual condition.
2, can obtain index through this system: the preference temperature of one, calcination of minerals and time are optimum temperature---time graph; Two, whether mineral explosion, efflorescence, bonding phenomenon can occur in above process; Three, whether the trace element in the mineral can separate out in above process; Four, whether the harmful element in the flue gas of fuel combustion generation can be adsorbed by mineral.Overcome conventional static blocking test fully.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Mark among the figure: 1, preheater, 2, charging aperture, 3, rotary kiln, 4, the cooling storehouse, 5, burner, 6, deduster, 7, air-introduced machine, 8, exhaust outlet, 9, the gas valve group, 10, transfer passage.
The specific embodiment
As shown in Figure 1, a kind of calcination of minerals pilot system, mainly constitute by preheater 1, rotary kiln 3, cooling storehouse 4, on preheater 1, be provided with charging aperture 2, the mineral material is The pre-heat treatment in charging aperture 2 is sent into preheater 1, being arranged on discharge gate on the preheater 1 is connected with an end of rotary kiln 3 by the transfer passage 10 that is obliquely installed and communicates, the other end discharging opening of rotary kiln 3 is connected with cooling storehouse 4, be provided with burner 5 in rotary kiln 3 and the end that links to each other of cooling storehouse 4, burner 5 is connected with the gas valve group 9 of outside.
Also be provided with exhaust outlet 8 on the described preheater 1, exhaust outlet 8 links by pipeline and air-introduced machine 7, also is provided with deduster 6 on the connecting line between exhaust outlet 8 and the air-introduced machine 7.It mainly acts on is to discharge along the air-introduced machine pipeline after deduster filters handling the waste hot gas that produces in the mineral process.
The burner that is provided with in this system 5 is a fuel with coal gas, also is provided with the combustion fan that is connected with burner 5.On intrasystem preheater, cooling storehouse, waste discharge feed channel, thermometer and pressure gauge are installed all, be reflected on the operating desk by line by a plurality of thermometrics (T), pressure measurement (P) instrument, then externally adopt hand-held infrared radiation thermometer to detect calcining heat at any time rotary kiln.
In preheater 1, also be provided with the Electrohydraulic push rod that promotes material, the mineral of promotion after The pre-heat treatment enter rotary kiln, and can pound the door by frequency, the rotating speed of cylinder of rotary kiln, the cooling storehouse discharging of adjusting the blanking of the preheater push rod frequency of opening of the regulation and control of each procedure segment time waits and realizes; The air mass flow of gas flow, combustion fan and pressure, air-introduced machine flow and pressure that can be by adjusting burner to the regulation and control of procedure segment temperature wait and realize.
Workflow is as follows: the mineral of normal temperature at first are admitted in the preheater, the high-temperature gas that transmits with rotary kiln carries out heat exchange realization warm, mineral are preheating to certain temperature and through suitable insulation, this moment, mineral had the part decomposition, in time promote mineral according to the Electrohydraulic push rod on the test requirements document preheater and enter rotary kiln, mineral progressively flow to low side from high-end constantly rolling in rotary kiln, the realization high-temperature calcination contacts with high-temperature gas that burner produced that is installed in the rotary kiln other end and flame reverse flow.Mineral after the calcining enter cooling in the taper cooling storehouse, and mineral are cooled to the following back of uniform temperature on request and discharge the cooling storehouse.The waste gas that preheater is discharged is sent to Low-Pressure Pulse Bag Filter and carries out dedusting, and waste gas enters atmosphere by air-introduced machine, chimney after filtering.
This pilot system can be handled multiple ores such as lime stone, dolomite, the smart sphere of powder of iron groups, and obtains various parameters.
The utility model calcination of minerals pilot system, the adaptation mineral granularity is 10～50mm, the highest calcining heat can reach 1400 ℃ in the rotary kiln.Mineral constantly roll in rotary kiln, and flue gas that burning produces and mineral decompose the gas that produces is discharged by air-introduced machine at any time, so calcination of minerals is even, thorough.Can be by simulation calcining to various mineral in preheating---cooling procedure is made following evaluation in insulation---calcining---:
The preference temperature of one, calcination of minerals and time are optimum temperature---time graph;
Two, whether mineral explosion, efflorescence, bonding phenomenon can occur in above process;
Three, whether the trace element in the mineral can separate out in above process;
Four, whether the harmful element in the flue gas of fuel combustion generation can be adsorbed by mineral.
Claims (3)
1. calcination of minerals pilot system, it is characterized in that: mainly constitute by preheater (1), rotary kiln (3), cooling storehouse (4), being arranged on discharge gate on the preheater (1) is connected with an end of rotary kiln (3) by the transfer passage (10) that is obliquely installed and communicates, the other end discharging opening of rotary kiln (3) is connected with cooling storehouse (4), be provided with burner (5) in the described rotary kiln (3), burner (5) is connected with gas valve group (9).
2. a kind of calcination of minerals pilot system according to claim 1, it is characterized in that: described preheater also is provided with exhaust outlet on (1), exhaust outlet links to each other with air-introduced machine (7) by pipeline, also is provided with deduster (6) on the connecting line between exhaust outlet and the air-introduced machine (7).
3. a kind of calcination of minerals pilot system according to claim 1 is characterized in that: also be provided with the push rod that promotes mineral in the described preheater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206910258U CN201926302U (en) | 2010-12-30 | 2010-12-30 | Mineral calcination testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206910258U CN201926302U (en) | 2010-12-30 | 2010-12-30 | Mineral calcination testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201926302U true CN201926302U (en) | 2011-08-10 |
Family
ID=44430148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206910258U Expired - Lifetime CN201926302U (en) | 2010-12-30 | 2010-12-30 | Mineral calcination testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201926302U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003880A (en) * | 2010-12-30 | 2011-04-06 | 中信重工机械股份有限公司 | Mineral calcining testing system |
| CN103486849A (en) * | 2013-09-06 | 2014-01-01 | 内蒙古工业大学 | Variable-atmosphere cement clinker calcination rotary kiln testing equipment |
-
2010
- 2010-12-30 CN CN2010206910258U patent/CN201926302U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003880A (en) * | 2010-12-30 | 2011-04-06 | 中信重工机械股份有限公司 | Mineral calcining testing system |
| CN103486849A (en) * | 2013-09-06 | 2014-01-01 | 内蒙古工业大学 | Variable-atmosphere cement clinker calcination rotary kiln testing equipment |
| CN103486849B (en) * | 2013-09-06 | 2015-11-18 | 内蒙古工业大学 | A kind of variable-atmosphere burning clinker of cement rotary kiln testing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110810 |