CN207358171U - A kind of heating in vacuum decomposes the device of molybdenum concntrate - Google Patents
A kind of heating in vacuum decomposes the device of molybdenum concntrate Download PDFInfo
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- CN207358171U CN207358171U CN201721441764.XU CN201721441764U CN207358171U CN 207358171 U CN207358171 U CN 207358171U CN 201721441764 U CN201721441764 U CN 201721441764U CN 207358171 U CN207358171 U CN 207358171U
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Abstract
The utility model discloses the device that a kind of heating in vacuum decomposes molybdenum concntrate, including sequentially connected heating furnace, heat exchanger, vacuum main valve, grade one filter, secondary filter, sliding valve vacuum pump, unit vacuum valve and Roots vaccum pump；Heat exchanger is also associated with sulphur capturing device, and the bottom of heat exchanger is additionally provided with sulphur collection device, and sulphur collection device bottom is equipped with transport vehicle, and transport car bottom, which coordinates, is equipped with limit guide rail；Heating furnace bottom is connected with lifting gear.The device of the utility model solves the problems, such as that the sulphur that molybdenum concntrate produces after decomposing in the prior art is attached on heat exchanger inner wall and easily triggers security incident.
Description
Technical field
It the utility model is related to molybdenum metallurgical technology field, and in particular to a kind of heating in vacuum decomposes the device of molybdenum concntrate.
Background technology
In novel Mo metallurgy project, using molybdenum concntrate as raw material, under vacuum and hot conditions, resolve into molybdenum concntrate
For molybdenum powder and sulphur.During molybdenum concntrate decomposition prepares molybdenum powder and sulphur, after being decomposed due to molybdenum concntrate, obtained molybdenum
Powder is still placed among graphite crucible, the collection for molybdenum powder, and only the in-furnace temperature such as need is down to after room temperature, falls graphite earthenware
Crucible, takes out required molybdenum powder out of graphite crucible.And sulphur is at high operating temperatures, in the form of a vapor, hot friendship is spread to
Among parallel operation, what is be passed through at this time in heat exchanger is the conduction oil of normal temperature state, and sulphur steam condenses into the sulphur of densification to the cold
Solid, is tightly attached on the inner wall of heat exchanger.Sulphur belongs to inflammable explosive article, and certain density sulfur dust runs into fire
It can occur to explode and produce dangerous accident during star.
Utility model content
The purpose of this utility model is to provide the device that a kind of heating in vacuum decomposes molybdenum concntrate, solves molybdenum in the prior art
The sulphur that concentrate produces after decomposing is attached on heat exchanger inner wall the problem of easily triggering security incident.
The utility model is the technical scheme adopted is that a kind of heating in vacuum decomposes the device of molybdenum concntrate, including connects successively
Heating furnace, heat exchanger, vacuum main valve, grade one filter, secondary filter, sliding valve vacuum pump, unit vacuum valve and sieve connect
Thatch vacuum pump；Heat exchanger is also associated with sulphur capturing device, and the bottom of heat exchanger is additionally provided with sulphur collection device, and sulphur is received
Acquisition means bottom is equipped with transport vehicle, and transport car bottom, which coordinates, is equipped with limit guide rail；Heating furnace bottom is connected with lifting gear.
The utility model is also characterized by
Sulphur capturing device includes high temperature oil pump, and the interlayer import of the discharge port and heat exchanger of high temperature oil pump connects, high
The feed inlet of warm oil pump is connected with oil heater, and the oil return port of oil heater and the interlayer outlet of heat exchanger connect, high temperature
The first valve is additionally provided between oil pump and heat exchanger.
Plate heat exchanger, plate heat exchanger and the first valve in parallel are additionally provided between high temperature oil pump and heat exchanger, it is board-like
The feed inlet and discharge port of heat exchanger are equipped with valve；Oily compensation box is additionally provided between oil heater and heat exchanger.
Sulphur collection device includes from top to bottom sequentially connected first gate valve, vacuum-breaking valve, the second gate valve and sulphur
Sulphur collecting tank, sulphur collecting tank are connected with collecting tank lifting cylinder, and the first gate valve is connected with heat exchanger, and sulphur collecting tank is set
On transport vehicle.
Pipeline between vacuum main valve and grade one filter is equipped with the first bellows, grade one filter and secondary filter
Between pipeline be equipped with the second bellows, one end end of the second bellows and the feed inlet of secondary filter connect, guiding valve
Pipeline between vacuum pump and unit vacuum valve is equipped with the 3rd bellows, one end end of the 3rd bellows and sliding valve vacuum pump
Discharge port connection.
Lifting gear is ball screw framework.
The housing bottom outer wall of heat exchanger and the first plate valve chest bottom outer wall are equipped with electric heating tube.
First gate valve upper end is equipped with diversion pipe.
The beneficial effects of the utility model are：
(1) protection of environment is conducive to：Molybdenum concntrate is decomposed into molybdenum powder and sulphur steam, sulphur under vacuum and the condition of high temperature
Sulphur steam carries a small amount of impurity dust, heat exchanger inner cavity is entered under the draft of vacuum pump set, to the cold conduction oil sulphur but
Sulphur steam condensation is on the inner wall of heat exchanger, if sulphur steam is directly discharged into air, will certainly cause environmental pollution,
When the sulphur on heat exchanger inner wall is run up to necessarily into degree, the conduction oil of heating is passed through, is condensed on heat exchanger inner wall
Sulphur start to dissolve and flow into sulphur collecting tank, whole process will not cause the pollution of environment, and also have collected to produce
The accessory sulphur of raw economic benefit.
(2) safety catch of sulphur is realized：Solid sulfur layer fine and close on heat exchanger inner wall is trapped using conduction oil,
Since heat exchanger inner cavity is in vacuum state, when conduction oil transfers heat to sulphur through chuck, will not have oxygen participate in and it is bright
Fire produces, therefore the fusion process of sulphur is safe, will not cause personal safety to experiment and operating personnel.
(3) reliability of molybdenum resolving device is improved：Do not trapped using heat-conducting oil heating on heat exchanger inner wall
During sulphur, collecting sulphur needs, by heat exchanger and the disengaging of whole decomposing system, then manually to shovel the sulphur on lower inner wall, entirely
Process labor intensive, material resources, after conduction oil, can heat conduction oil at any time to trap the sulphur on heat exchanger, without
Dismounting heat exchanger is spent, so as to ensure that the vacuum of whole system, improves the reliability of molybdenum resolving device.
Brief description of the drawings
Fig. 1 is the structure diagram for the device that a kind of heating in vacuum of the utility model decomposes molybdenum concntrate；
Fig. 2 is the structural representation of sulphur capturing device in a kind of device of heating in vacuum decomposition molybdenum concntrate of the utility model
Figure；
Fig. 3 is the structural representation of sulphur collection device in a kind of device of heating in vacuum decomposition molybdenum concntrate of the utility model
Figure.
In figure, 1. heating furnaces, 2. heat exchangers, 3. vacuum main valves, 4. grade one filters, 5. secondary filters, 6. guiding valves
Vacuum pump, 7. unit vacuum valves, 8. Roots vaccum pumps, 9. sulphur capturing devices, 10. sulphur collection devices, 11. limit guide rails,
12. lifting gear, 13. transport vehicles；
9-1. high temperature oil pumps, 9-2. oil heaters, 9-3. plate heat exchangers, 9-4. oil compensation boxes；
The first gate valves of 10-1., 10-2. vacuum-breaking valves, the second gate valves of 10-3., 10-4. sulphur collecting tanks, 10-5. are received
Collect tank lifting cylinder.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of heating in vacuum of the utility model decomposes the device of molybdenum concntrate, as shown in Figure 1, including sequentially connected heating
Stove 1, heat exchanger 2, vacuum main valve 3, grade one filter 4, secondary filter 5, sliding valve vacuum pump 6, unit vacuum valve 7 and Roots
Vacuum pump 8；Heat exchanger 2 is also associated with sulphur capturing device 9, and the bottom of heat exchanger 2 is additionally provided with sulphur collection device 10, sulphur
10 bottom of sulphur collection device is equipped with transport vehicle 13, and 13 bottom of transport vehicle, which coordinates, is equipped with limit guide rail 11；1 bottom of heating furnace is connected with
Lifting gear 12.
As shown in Fig. 2, sulphur capturing device 9 includes high temperature oil pump 9-1, discharge port and the heat exchanger 2 of high temperature oil pump 9-1
Interlayer import connection, the feed inlet of high temperature oil pump 9-1 is connected with oil heater 9-2, oil return port and the heat of oil heater 9-2
The interlayer outlet connection of exchanger 2, is additionally provided with the first valve between high temperature oil pump 9-1 and heat exchanger 2.
Plate heat exchanger 9-3, plate heat exchanger 9-3 and the first valve are additionally provided between high temperature oil pump 9-1 and heat exchanger 2
Parallel connection, the feed inlet and discharge port of plate heat exchanger 9-3 are equipped with valve；It is additionally provided between oil heater 9-2 and heat exchanger 2
Oily compensation box 9-4.Oily compensation box 9-4 is arranged on by flanged joint on the return of high temperature oil pump 9-1, as high temperature oil pump 9-
During 1 low on fuel, the high temperature oil of oily compensation box 9-4 fills up the deficiency of high temperature oil pump 9-1 by gravity, as high temperature oil pump 9-1
Automatic overflow enters oily compensation box 9-4 when the oil mass pumped out is excessive, ensures the stabilization of high temperature oil flowing pipeline oil flow.
As shown in figure 3, sulphur collection device 10 includes from top to bottom sequentially connected first gate valve 10-1, vacuum-breaking valve
10-2, the second gate valve 10-3 and sulphur collecting tank 10-4, sulphur collecting tank 10-4 are connected with collecting tank lifting cylinder 10-5, the
One gate valve 10-1 is symmetrically connected with heat exchanger 2 by flange screw thread, and the sulphur collecting tank 10-4 is located on transport vehicle 13.
Pipeline between vacuum main valve 3 and grade one filter 4 is equipped with the first bellows, grade one filter 4 and two level mistake
Pipeline between filter 5 is equipped with the second bellows, and one end end of the second bellows connects with the feed inlet of secondary filter 5
Connect, the pipeline between sliding valve vacuum pump 6 and unit vacuum valve 7 is equipped with the 3rd bellows, one end end of the 3rd bellows with
The discharge port connection of sliding valve vacuum pump 6.
Lifting gear 12 is ball screw framework.
In the sulphur on trapping heat exchanger inner wall, do not cooled down in 2 bottom of heat exchanger, the first gate valve 10-1
Heating unit, for avoid on 2 inner wall of heat exchanger the sulphur after heating fusing in 2 and first gate valve 10-1 of heat exchanger again
Secondary condensation, electric heating tube is equipped with the housing bottom outer wall of heat exchanger 2 and on the first gate valve 10-1 housings bottom outer wall.
In the sulphur on trapping 2 inner wall of heat exchanger, to avoid the sulphur after fusing from flowing through the first gate valve 10-1 dirts
Valve is contaminated, the first gate valve 10-1 cisco unity malfunctions is caused, diversion pipe is equipped with the first gate valve 10-1 upper ends, after making fusing
Sulphur will not be to valve chamber body pollution.
In the sulphur on trapping 2 inner wall of heat exchanger, the efficiency of heating surface is improved to save the energy, in sulphur collecting tank 10-4
Outer wall is kept the temperature using alumina silicate fibre blanket, and outside is wound using aluminium film.
In the sulphur on trapping 2 inner wall of heat exchanger, oil heater 9-2 is using oil as heat transfer medium, using electric heating liter
Temperature, liquid phase circulation, operating pressure 0.25Mpa, heating power 24Kw, 200 DEG C of maximum temperature are forced by high temperature oil pump 9-1.When
When the conduction oil that high temperature oil pump 9-1 is pumped out is by the high oil temperature of pipeline inflow heat exchanger 2, conduction oil passes through plate heat exchanger
9-3 needs cooling treatment, on the contrary, then need to heat, it is constant by the oil temperature of heat exchanger 2 to ensure, so as to be conducive to
The liquefaction trapping of sulphur.
In the sulphur on trapping 2 inner wall of heat exchanger, high temperature oil pump 9-1 is directly installed in oily heating cabinet body, cooling
Circulation shares a pump with heat cycles；High temperature oil pump 9-1 power of motor 3Kw, oil pump flow 12.5m3, lift 28m, oil outlet
Diameter 32mm, oil return opening 50mm.
The method that a kind of heating in vacuum of the utility model decomposes molybdenum concntrate, molybdenum essence is decomposed using a kind of above-mentioned heating in vacuum
The device of ore deposit, comprises the following steps：
Step 1, the graphite crucible equipped with molybdenum concntrate particle is placed in heating furnace (1), furnace body vacuumizes, in air-cooled condition
Under, furnace body vacuum is reached below 5Pa；
Step 2, after the vacuum in heating furnace (1) is met the requirements, start to start intermediate frequency power supply, make in heating furnace (1)
Temperature reaches 1500 DEG C~1700 DEG C, keeps the temperature 3h~5h；
Step 3, when molybdenum concntrate is after step (3) is decomposed completely, closing intermediate frequency power supply, holding system vacuumizes state；
Step 4, oil heater (9-2) is opened, heats conduction oil, until heat conduction at the oil return port of oil heater (9-2)
The temperature of oil is 150 DEG C, then keeps the temperature 2h；
Step 5, oil heater (9-2) is closed, when conduction oil is room temperature at the oil return port of oil heater (9-2), according to
Secondary closing Roots vaccum pump (8) and sliding valve vacuum pump (6)；
Step 6, the device vacuum breaker of molybdenum concntrate is decomposed to heating in vacuum, heating furnace (1) is opened, is divided in graphite crucible
The molybdenum powder obtained after solution molybdenum concntrate；Sulphur collecting tank (10-4) is separated with heat exchanger (2), opens sulphur collecting tank (10-4)
The sulphur trapped.
Unit type：Vacuum main valve 3 is GDQ-S320；Sliding valve vacuum pump 6 is H-150M, and Roots vaccum pump 8 is ZJP-
600B；Oil heater 9-2 is QX036；First gate valve 10-1 is CCQ-250；Second gate valve 10-3 is CCQ-250.
Embodiment
Prepare the molybdenum concntrate powder 30Kg that grade is 52%, organic gel and pure water are pressed 1：10 ratio mixing is used as molybdenum
The binding agent of concentrate powder, the binding agent mixed is added among molybdenum concntrate powder, starts to stir, it is to be mixed uniformly after,
Be stirred for 1h, after molybdenum concntrate is sticky, is placed in comminutor and is granulated, the molybdenum concntrate pellet through sieves that will have been made, take particle diameter for 2~
The molybdenum concntrate particle of 3mm, placement are dried in an oven, complete the preparation of molybdenum concntrate particle.
The molybdenum concntrate particle prepared is placed in graphite crucible, as shown in Figure 1, its operating process is：Ball-screw machine
Structure rotates, and drives furnace body bottom cover to rise, molybdenum concntrate particle is brought into heating furnace 1, opens ZJP-600 Roots vaccum pumps 8, beats
Start group vacuum valve 7, when vacuum is down to 2000Pa, opens Roots vaccum pump 8, then opens vacuum main valve 3, treats furnace body vacuum
When degree is down to below 5Pa, starts intermediate frequency power supply, heated to heating furnace 1, at this time the molybdenum concntrate particle breakdown in graphite crucible.
Under the condition of high temperature, the disperse of sulphur steam enters heat exchanger 2, and is contacted with inner wall and condense into solid sulfur to the cold, question response knot
Intermediate frequency power supply is closed after beam.
As shown in figure 3, solid sulfur being attached on the inner wall of heat exchanger 2 tightly, opens oil heater 9-2, utilize
Sulphur in molten state and the best property of mobility, sets heat-conducting oil heating temperature, opens the first valve at 150 DEG C,
Close the feed inlet of plate heat exchanger 9-3 and the valve of discharge port, conduction oil under the draft effect of high temperature oil pump 9-1, without
Cross plate heat exchanger 9-3 and be directly entered in heat exchanger jacket, the interlayer of heat exchanger 2, heat conduction are entered by the first valve
Oil by self-contained heat transfer to the sulphur on 2 inner wall of heat exchanger, sulphur be heated after-tack, melting, finally with liquid
Form come back in oil heater 9-2 and heat from 2 inner outflow of heat exchanger, conduction oil, prepare wait circulate next time.
As shown in Fig. 2, the sulphur of molten state is slowly flowed out from heat exchanger 2 under the effect of gravity, the first gate valve 10-
1 and second gate valve 10-3 open, sulphur flows directly into sulphur collecting tank 10-4, falls in tank bottom cover, treats that sulphur is collected
Terminate, collecting tank lift cylinder 10-5 is fallen, and sulphur collecting tank 10-4 and the first gate valve 10-1 lower ends depart from, along limit guide rail
11 push the other end to, open bottom cover and just obtain required sulphur.
Fluorescence complete analysis testing result is carried out to the sulphur trapped to show, the sulphur sulfur-bearing produced is decomposed using molybdenum concntrate
Amount is up to 97%, and lower by 2.99% than high-purity sulfur purity on the market, the sulphur that this method can will be used to produce purifies
After sell, it can also be used to relieving haperacidity.
The utility model has the following advantages：
(1) protection of environment is conducive to：Molybdenum concntrate is decomposed into molybdenum powder and sulphur steam, sulphur under vacuum and the condition of high temperature
Sulphur steam carries a small amount of impurity dust, heat exchanger inner cavity is entered under the draft of vacuum pump set, to the cold conduction oil sulphur but
Sulphur steam condensation is on the inner wall of heat exchanger, if sulphur steam is directly discharged into air, will certainly cause environmental pollution,
When the sulphur on heat exchanger inner wall is run up to necessarily into degree, the conduction oil of heating is passed through, is condensed on heat exchanger inner wall
Sulphur start to dissolve and flow into sulphur collecting tank, whole process will not cause the pollution of environment, and also have collected to produce
The accessory sulphur of raw economic benefit.
(2) safety catch of sulphur is realized：Solid sulfur layer fine and close on heat exchanger inner wall is trapped using conduction oil,
Since heat exchanger inner cavity is in vacuum state, when conduction oil transfers heat to sulphur through chuck, will not have oxygen participate in and it is bright
Fire produces, therefore the fusion process of sulphur is safe, will not cause personal safety to experiment and operating personnel.
(3) reliability of molybdenum resolving device is improved：Do not trapped using heat-conducting oil heating on heat exchanger inner wall
During sulphur, collecting sulphur needs, by heat exchanger and the disengaging of whole decomposing system, then manually to shovel the sulphur on lower inner wall, entirely
Process labor intensive, material resources, after conduction oil, can heat conduction oil at any time to trap the sulphur on heat exchanger, without
Dismounting heat exchanger is spent, so as to ensure that the vacuum of whole system, improves the reliability of molybdenum resolving device.
Claims (8)
1. a kind of heating in vacuum decomposes the device of molybdenum concntrate, it is characterised in that including sequentially connected heating furnace (1), heat exchange
Device (2), vacuum main valve (3), grade one filter (4), secondary filter (5), sliding valve vacuum pump (6), unit vacuum valve (7) and sieve
Thatch vacuum pump (8)；The heat exchanger (2) is also associated with sulphur capturing device (9), and the bottom of the heat exchanger (2) is also set
There is sulphur collection device (10), sulphur collection device (10) bottom is equipped with transport vehicle (13), transport vehicle (13) bottom
Cooperation is equipped with limit guide rail (11)；Heating furnace (1) bottom is connected with lifting gear (12).
2. a kind of heating in vacuum according to claim 1 decomposes the device of molybdenum concntrate, it is characterised in that the sulphur trapping
Device (9) includes high temperature oil pump (9-1), the discharge port of the high temperature oil pump (9-1) and the interlayer import of the heat exchanger (2)
Connection, the feed inlet of the high temperature oil pump (9-1) are connected with oil heater (9-2), the oil return port of the oil heater (9-2)
Export and connect with the interlayer of the heat exchanger (2), be additionally provided between the high temperature oil pump (9-1) and the heat exchanger (2)
First valve.
3. a kind of heating in vacuum according to claim 2 decomposes the device of molybdenum concntrate, it is characterised in that the high temperature oil pump
Plate heat exchanger (9-3), the plate heat exchanger (9-3) and the first valve are additionally provided between (9-1) and the heat exchanger (2)
Parallel connection, the feed inlet and discharge port of the plate heat exchanger (9-3) are equipped with valve；The oil heater (9-2) and the heat
Oily compensation box (9-4) is additionally provided between exchanger (2).
4. a kind of heating in vacuum according to claim 3 decomposes the device of molybdenum concntrate, it is characterised in that the sulphur is collected
Device (10) includes from top to bottom sequentially connected first gate valve (10-1), vacuum-breaking valve (10-2), the second gate valve (10-
3) and sulphur collecting tank (10-4), the sulphur collecting tank (10-4) is connected with collecting tank lifting cylinder (10-5), and described first
Gate valve (10-1) is connected with heat exchanger (2), and the sulphur collecting tank (10-4) is located on transport vehicle (13).
5. a kind of heating in vacuum according to claim 4 decomposes the device of molybdenum concntrate, it is characterised in that the vacuum main valve
(3) pipeline between grade one filter (4) is equipped with the first bellows, the grade one filter (4) and secondary filter (5)
Between pipeline be equipped with the second bellows, one end end of second bellows connects with the feed inlet of secondary filter (5)
Connect, the pipeline between the sliding valve vacuum pump (6) and unit vacuum valve (7) is equipped with the 3rd bellows, the 3rd bellows
One end end be connected with the discharge port of sliding valve vacuum pump (6).
6. a kind of heating in vacuum according to claim 5 decomposes the device of molybdenum concntrate, it is characterised in that the lifting gear
(12) it is ball screw framework.
7. a kind of heating in vacuum according to claim 6 decomposes the device of molybdenum concntrate, it is characterised in that the heat exchanger
(2) housing bottom outer wall and the first gate valve (10-1) housing bottom outer wall is equipped with electric heating tube.
8. a kind of heating in vacuum according to claim 7 decomposes the device of molybdenum concntrate, it is characterised in that first plate
Valve (10-1) upper end is equipped with diversion pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441764.XU CN207358171U (en) | 2017-11-02 | 2017-11-02 | A kind of heating in vacuum decomposes the device of molybdenum concntrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441764.XU CN207358171U (en) | 2017-11-02 | 2017-11-02 | A kind of heating in vacuum decomposes the device of molybdenum concntrate |
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| Publication Number | Publication Date |
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| CN207358171U true CN207358171U (en) | 2018-05-15 |
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| CN201721441764.XU Active CN207358171U (en) | 2017-11-02 | 2017-11-02 | A kind of heating in vacuum decomposes the device of molybdenum concntrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695362A (en) * | 2017-11-02 | 2018-02-16 | 金堆城钼业股份有限公司 | A kind of heating in vacuum decomposes the device and method of molybdenum concntrate |
| CN118006935A (en) * | 2024-04-08 | 2024-05-10 | 辽宁鑫泰钼业有限公司 | Device for decomposing molybdenum concentrate by vacuum heating |
-
2017
- 2017-11-02 CN CN201721441764.XU patent/CN207358171U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695362A (en) * | 2017-11-02 | 2018-02-16 | 金堆城钼业股份有限公司 | A kind of heating in vacuum decomposes the device and method of molybdenum concntrate |
| CN118006935A (en) * | 2024-04-08 | 2024-05-10 | 辽宁鑫泰钼业有限公司 | Device for decomposing molybdenum concentrate by vacuum heating |
| CN118006935B (en) * | 2024-04-08 | 2024-06-04 | 辽宁鑫泰钼业有限公司 | Device for decomposing molybdenum concentrate by vacuum heating |
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