CN103305689B - Pellet preheating and drying test device - Google Patents
Pellet preheating and drying test device Download PDFInfo
- Publication number
- CN103305689B CN103305689B CN201310289328.5A CN201310289328A CN103305689B CN 103305689 B CN103305689 B CN 103305689B CN 201310289328 A CN201310289328 A CN 201310289328A CN 103305689 B CN103305689 B CN 103305689B
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- preheating
- valve
- pellet
- breather line
- testing apparatus
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Abstract
The invention discloses a pellet preheating and drying test device which comprises a preheating tank, wherein two sides of the preheating tank are respectively connected with a combustion chamber and an exhaust fan by a ventilating pipeline I and a ventilating pipeline II; the combustion chamber is connected with a combustion system; the preheating tank is internally provided with a discharge hopper which can be taken out and put in through a hole formed in the wall of the preheating tank; the discharge hopper is in a two-layer structure; the bottoms of the two layers are in grate hole structures; the ventilating pipeline I is connected with the preheating tank by two branch pipes; the ventilating pipeline II is connected with the preheating tank by two branch pipes; every two branch pipes are respectively positioned above and below the discharge hopper; and valves arranged on the four branch pipes. The pellet preheating and drying test device is simple in structure and convenient to dismount and mount; the four high-temperature manual plugboard valves adjacent to the preheating tank are paired for turning on and off, so that exhaust and blast requirements can be achieved, and the field operating condition can be completely simulated; and the discharge hopper which can be taken out and put in through the hole formed in the wall of the preheating tank is arranged on the preheating tank, so that pellets can be loaded and unloaded in an experiment process, and the pellet preheating and drying test device is convenient to operate.
Description
Technical field
The present invention relates to pellet simulation calcining technical field of experiment equipment, specifically a kind of pellet preheating and drying testing apparatus.
Background technology
Simulation pellet calcining experiment is the experiment of simulation pellet preheating and drying.Object is that time and temperature parameter detect the performance of pelletizing after preheating and drying by regulating wind speed.Enter drying grate with simulation by the high-temperature flue gas of rotary kiln and preheating and drying is carried out to green-ball, the intensity of green-ball is increased, to meet in the requirement of revolution roasting in kilns.Pellet simulation drying plant is exactly the equipment of simulation drying grate.Green-ball preheating experiment in current laboratory mainly adopts preheating can, directly combustion chamber and preheating can is made of one, and calculated the wind speed of hot blast by the amount of control combustion gas and combustion-supporting gas, handling material is also inconvenient.
Summary of the invention
Being integrated the problems such as produced such as handling material inconvenience for solving combustion chamber and preheating can in prior art, the invention provides a kind of pellet preheating and drying testing apparatus.
The present invention is the technical scheme solving the problems of the technologies described above employing: a kind of pellet preheating and drying testing apparatus, comprise preheating can, preheating can both sides are connected with combustion chamber and vacuum fan with breather line II respectively by breather line I, combustion chamber is connected with firing system, the drain hopper that the hole by preheating tank skin has is taken out and put into is provided with in described preheating can, drain hopper is bilayer structure, and two-layer bottom is comb cavernous structure; Described breather line I and breather line II are all connected with preheating can by two arms, and two arms divide and are in above and below drain hopper, and described four arms are equipped with valve.
Described firing system mainly comprises fuel, combustion-supporting gas, gas blower and burner, and burner is used for fuel, combustion-supporting gas to spray into combustion chamber combustion, and gas blower is used for adding air to combustion chamber.
Described combustion chamber be provided be connected with the external world connect air valve, for adjust burning indoor gas temperature and pressure.
Described breather line I is provided with anemoscope, for detecting the flow velocity of warm air in breather line I.
Described breather line II is provided with cool air inlet for the protection of vacuum fan and thermopair.
Described valve is high temperature hand operated gate valve, and push-pull valve entirety adopts heat-resistance stainless steel and refractory fibre composition, realizes exhausting and aeration operation by the cooperation break-make of four groups of push-pull valves.
Described high temperature hand operated gate valve forms primarily of valve body and the valve plate be arranged in valve body, body top is provided with the double thermal insulation structure of flame-retardant fibre board and refractory fibre rope formation, double thermal insulation structure upper is provided with pressing plate, described valve plate is elevated in valve body by the lifting rod through double thermal insulation structure and pressing plate, lifting rod is provided with dowel hole, for being fixed the position of valve plate by steady brace, the area also by the difference control valve plate of steady brace rational height on lifting rod, pipeline can opened.
Described preheating can is hollow columnar structures, is provided with refractory lining around its inwall, and preheating can is also provided with thermometric load cell.
Beneficial effect: the present invention has the following advantages compared to prior art:
1) structure of the present invention is simply convenient to dismounting, and the requirement that can realize exhausting and air blast is opened and closed in four the high temperature hand operated gate valves pairing adjacent by preheating can, can simulated field operating mode completely;
2) the present invention is by the hole taking-up arranged on preheating can by preheating tank skin has and the drain hopper put into, and can load and unload pellet in experimentation, easy to operate;
3) firing system blast inlet adopts gas blower, and air outlet adopts induced draft fan, ensures negative pressure in combustion chamber, ensures equipment use safety;
4) between combustion chamber and preheating can, connecting pipeline is installed survey wind speed instrument to be convenient to directly adjust parameter, preheating can is equipped with thermometric load cell, the parameters such as material resistance can be measured.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is the structural representation of drain hopper;
Fig. 3 is the structural representation of high temperature hand operated gate valve;
Fig. 4 is the schematic perspective view of high temperature hand operated gate valve;
Fig. 5 is the structural representation of valve plate and lifting rod;
Reference numeral: 1, firing system, 2, combustion chamber, 3, connect air valve, 4, anemoscope, 5, breather line I, 6, valve, 7, preheating can, 8, drain hopper, 9, breather line II, 10, vacuum fan, 601, valve body, 602, valve plate, 603, flame-retardant fibre board, 604, refractory fibre rope, 605, pressing plate, 606, lifting rod, 607, dowel hole.
Embodiment
As shown in the figure, a kind of pellet preheating and drying testing apparatus, comprise preheating can 7, preheating can 7 is hollow columnar structures, be provided with refractory lining around its inwall, preheating can 7 is also provided with thermometric load cell, preheating can 7 both sides are connected with combustion chamber 2 and vacuum fan 10 with breather line II 9 respectively by breather line I 5, combustion chamber 2 is connected with firing system 1, and firing system 1 mainly comprises fuel, combustion-supporting gas, gas blower and burner; Be provided with the drain hopper 8 that the hole by preheating can 7 wall has is taken out and put in described preheating can 7, drain hopper 8 is bilayer structure, and two-layer bottom is comb cavernous structure; Described breather line I 5 and breather line II 9 are all connected with preheating can 7 by two arms, and two arms divide and are in above and below drain hopper 8, and described four arms are equipped with valve 6.
Described valve 6 is high temperature hand operated gate valve, high temperature hand operated gate valve forms primarily of valve body 601 and the valve plate 602 be arranged in valve body 601, valve body 601 top is provided with the double thermal insulation structure of flame-retardant fibre board 603 and refractory fibre rope 604 formation, double thermal insulation structure upper is provided with pressing plate 605, described valve plate 602 is elevated in valve body 601 by the lifting rod 606 through double thermal insulation structure and pressing plate 605, and lifting rod 606 is provided with dowel hole 607.
It is more than basic embodiment of the present invention.
A kind of preferred implementation of the present invention is on the basis of above-mentioned basic embodiment, for be provided with on described combustion chamber 2 be connected with the external world connect air valve 3.
Another kind of preferred implementation of the present invention is on the basis of above-mentioned basic embodiment, for being provided with anemoscope 4 on described breather line I 5.
Another kind of preferred implementation of the present invention is on the basis of above-mentioned basic embodiment, for being provided with cool air inlet for the protection of vacuum fan 10 and thermopair on described breather line II 9.
In the present invention, put into pellet wherein by pull-out drain hopper 8 and then drain hopper 8 is pushed preheating can 7, valve on four arms be connected breather line I 5 with preheating can 7 with breather line II 9 is numbered, valve on the arm that breather line I 5 position is top is numbered No. I valve, valve on the arm on the lower of breather line I 5 position is numbered No. III valve, valve on the arm that breather line II 9 position is top is numbered No. II valve, and the valve on the arm on the lower of breather line II 9 position is numbered No. IV valve;
If desired during air blast preheating, close No. I valve and No. IV valve, warm air enters from No. III valve, and No. II valve goes out, and warm air first by the poroid base plate of comb bottom drain hopper 8, then passes through pellet; When realizing exhausting and be dry, close No. II valve and No. III valve, warm air enters from No. I valve, and No. IV valve goes out, and warm air first by pellet, then passes through the poroid base plate of comb bottom high temperature steel drain hopper 8.
Claims (6)
1. a pellet preheating and drying testing apparatus, comprise preheating can (7), preheating can (7) both sides are connected with combustion chamber (2) and vacuum fan (10) with breather line II (9) respectively by breather line I (5), combustion chamber (2) is connected with firing system (1), it is characterized in that: in described preheating can (7), be provided with the drain hopper (8) that the hole by preheating can (7) wall has is taken out and put into, drain hopper (8) is bilayer structure, and two-layer bottom is comb cavernous structure; Described breather line I (5) is all connected with preheating can (7) by two arms with breather line II (9), and two arms divide and are in above and below drain hopper (8), and described four arms are equipped with valve (6); Described valve (6) is high temperature hand operated gate valve, this high temperature hand operated gate valve forms primarily of valve body (601) and the valve plate (602) be arranged in valve body (601), valve body (601) top is provided with the double thermal insulation structure that flame-retardant fibre board (603) and refractory fibre rope (604) are formed, double thermal insulation structure upper is provided with pressing plate (605), described valve plate (602) is elevated in valve body (601) by the lifting rod (606) through double thermal insulation structure and pressing plate (605), and lifting rod (606) is provided with dowel hole (607).
2. a kind of pellet preheating and drying testing apparatus according to claim 1, is characterized in that: described firing system (1) mainly comprises fuel, combustion-supporting gas, gas blower and burner.
3. a kind of pellet preheating and drying testing apparatus according to claim 1, is characterized in that: described combustion chamber (2) be provided be connected with the external world connect air valve (3).
4. a kind of pellet preheating and drying testing apparatus according to claim 1, is characterized in that: described breather line I (5) is provided with anemoscope (4).
5. a kind of pellet preheating and drying testing apparatus according to claim 1, is characterized in that: described breather line II (9) is provided with cool air inlet for the protection of vacuum fan (10) and thermopair.
6. a kind of pellet preheating and drying testing apparatus according to claim 1, is characterized in that: described preheating can (7) is hollow columnar structures, is provided with refractory lining around its inwall, and (7) are also provided with thermometric load cell to preheating can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310289328.5A CN103305689B (en) | 2013-07-11 | 2013-07-11 | Pellet preheating and drying test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310289328.5A CN103305689B (en) | 2013-07-11 | 2013-07-11 | Pellet preheating and drying test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103305689A CN103305689A (en) | 2013-09-18 |
| CN103305689B true CN103305689B (en) | 2015-03-11 |
Family
ID=49131403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310289328.5A Expired - Fee Related CN103305689B (en) | 2013-07-11 | 2013-07-11 | Pellet preheating and drying test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103305689B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131155A (en) * | 2014-08-18 | 2014-11-05 | 重庆科技学院 | Pellet preheating drying simulator |
| CN107435097B (en) * | 2017-08-08 | 2018-12-14 | 江苏大学 | A kind of the multiple physical field simulation experiment system and method for pelletizing drying and preheating process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201397013Y (en) * | 2009-01-19 | 2010-02-03 | 马鞍山钢铁股份有限公司 | Alloy roasting and drying device |
| CN201954947U (en) * | 2010-12-17 | 2011-08-31 | 湖南航天工业总公司 | Sintering atmosphere adjusting system for industrial grade microwave high-temperature roller-way continuous sintering kiln |
| CN102003880A (en) * | 2010-12-30 | 2011-04-06 | 中信重工机械股份有限公司 | Mineral calcining testing system |
| CN203440425U (en) * | 2013-07-11 | 2014-02-19 | 中信重工机械股份有限公司 | Pellet preheating and drying test device |
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2013
- 2013-07-11 CN CN201310289328.5A patent/CN103305689B/en not_active Expired - Fee Related
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| CN103305689A (en) | 2013-09-18 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20200711 |