CN103397210B - Constant-temperature constant-pH-value stone coal vanadium extraction agitation leaching tank - Google Patents
Constant-temperature constant-pH-value stone coal vanadium extraction agitation leaching tank Download PDFInfo
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- CN103397210B CN103397210B CN201310355179.8A CN201310355179A CN103397210B CN 103397210 B CN103397210 B CN 103397210B CN 201310355179 A CN201310355179 A CN 201310355179A CN 103397210 B CN103397210 B CN 103397210B
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Abstract
The invention relates to a constant-temperature constant-pH-value stone coal vanadium extraction agitation leaching tank. The technical scheme is as follows: the center of the tank top is provided with an agitator (9); an acid inlet tube (14), a wear-resistant thermocouple thermometer (20), a feed hopper (30) and a pH meter (23) are fixedly arranged on the tank top; and a floating ball scaleplate (15) is flexibly arranged on the tank top. An agitating shaft (16) of the agitator (9) is a hollow shaft with a sealed upper end; a motor (17) is connected with the agitating shaft (16) through a coupling (18); the upper end adjacent to the agitating shaft (16) is flexibly provided with a rotary joint (19); the rotary joint (19) is provided with a steam tube (22); and the lower end of the agitating shaft (16) is provided with a propeller (27); a flat blade (26) is arranged above the propeller (27). The tank body is sequentially composed of a cladding layer (10), a thermal insulation layer (8), a reinforcement layer (7) and a working layer (5) from the outer wall to the inner wall; and the upper part of the tank body is provided with an overflow tube (24). The center of the tank bottom is fixedly provided with a four-way tube (1). The invention has the characteristics of long service life, high work efficiency and high leaching rate.
Description
Technical field
The invention belongs to extracting vanadium from stone coal stirred leaching tank technical field, relate in particular to the extracting vanadium from stone coal stirred leaching tank of the permanent pH value of a kind of constant temperature.
Background technology
In extracting vanadium from stone coal process, the difficult point of vanadium extraction and key are all ore decomposition processes, and in bone coal, vanadium is entered the leaching process of liquid phase by solid phase, in this process, by the solution the such as water-soluble vanadium in bone coal, acid or alkali, are beneficial to enriching and recovering.
Ore Leaching is common Leaching way, and the leaching plant adopting at present mainly contains two kinds: one is mechanical agitation type leaching vat, as " adding a cover sealing insulated and stirred leaching plant " (CN 201020516257.X); Another kind is air mixing leaching tank, as pneumatic blending Cyanide Leaching groove (Yang Zhenxing, Sun Zhongjian. the application practice of pneumatic blending Cyanide Leaching groove. gold .2002:9).
Though above-mentioned two kinds of leaching vat have its known advantage, along with the reduction of acid content in carrying out and the leaching vat of reaction, make breeze can not get stable sour environment, leaching efficiency can not get effectively improving; The decline of temperature, also can make speed of reaction slow down; Along with the carrying out of reaction, leaching vat bottom easily produces particle deposition simultaneously; And due to the sour environment in reaction, equipment is easily corroded and reduces work-ing life.Therefore above-mentioned two kinds of leaching vat all exist that work-ing life is low, leaching yield is lower and the shortcoming such as inefficiency to some extent.
Summary of the invention
The present invention is intended to overcome the defect of prior art, and object is the extracting vanadium from stone coal stirred leaching tank that a kind of long service life, the permanent pH value of production efficiency is high and leaching yield is high constant temperature are provided for extracting vanadium from stone coal Leaching reaction.
For achieving the above object, the technical solution used in the present invention is: extracting vanadium from stone coal stirred leaching tank comprises cell body, whipping appts, acid inlet tube, four-way pipe, ball float scale, abrasion resistant thermocouple thermometer, industrial ph, vapour pipe and upflow tube.
Cell body is made up of groove top, groove body and bottom land; Groove top and bottom land be concentricity corresponding connection of top and bottom with groove body by bolt.
Groove top is made up of top liner and top cover, and top liner is close to the lower plane of top cover.The center position on groove top is provided with whipping appts actively, and groove is equipped with acid inlet tube, abrasion resistant thermocouple thermometer, loading hopper and industrial ph on top regularly, and groove is provided with ball float scale on top actively.
The inwall of groove body is working lining, and the outer wall of groove body is surrounding layer, and enhancement Layer is close to working lining, is thermal insulation layer between enhancement Layer and surrounding layer; The top of groove body is provided with upflow tube, the distance that the center of upflow tube and groove are held is with it overfall tube diameter 1～1.5 times.
Bottom land is made up of bottom shell and bottom liner, and bottom liner is close to the upper surface of bottom shell; The angle of the bottom land conical surface and horizontal plane is 3～5 o; The center position of bottom land is fixedly provided with four-way pipe.
Whipping appts is made up of motor, shaft coupling, stir shaft, flat oar and water screw.Motor is fixedly mounted on outer support, and motor connects with stir shaft by shaft coupling; Stir shaft is the tubular shaft of upper end sealing, and hollow parts is vapour passage; Near stir shaft upper end, swivel joint being housed actively, vapour pipe is housed on swivel joint regularly, vapour pipe communicates with the vapour passage of stir shaft by swivel joint; The stir shaft length stretching in cell body is 7/8～8/9 of working lining height, and water screw is equipped with in the lower end of stir shaft, and flat oar is housed above water screw, and the distance of water screw and flat oar is 1/6～1/5 of working lining height.
The material of described bottom liner, working lining and top liner is tetrafluoroethylene, and thickness is 2～3mm.
Described thermal insulation layer is mineral wool, and thickness is 50～60mm.
Described bottom shell, enhancement Layer, surrounding layer, top cover are stainless steel; The thickness of surrounding layer is 2～3mm, and the thickness of bottom shell, enhancement Layer and top cover is 5～6mm.
A horizontal mouth of pipe of described four-way pipe is wash-down water entrance, and another horizontal mouth of pipe is discharge gate, is slag-drip opening towards lower nozzle.
The length of flat oar (26) is 1/2～2/3 of working lining (5) inwall radius.
The length of described water screw is 1/4～1/3 of working lining inwall radius.
Owing to having adopted technique scheme, the present invention compared with prior art, has following positively effect:
Four-way pipe of the present invention, bottom liner, working lining, top liner and upflow tube all adopt the extremely strong tetrafluoroethylene of acid resistance (PTFE) material, the requirement of the acidproof and heatproof of leaching vat can not only be met simultaneously, and the work-ing life of leaching vat can be effectively improved.
When the present invention starts working, upflow tube, wash-down water entrance, discharge gate and slag-drip opening are all closed, and the slip good with acid solution proportioning enters leaching vat by loading hopper, and the degree of depth reaches the stirring that starts of working lining height at 2/3 o'clock; Then open discharge gate, control the aperture of blow-off valve so that the interior liquid level of groove keeps constant; Open admission valve simultaneously and in leaching vat, pass into hot steam by vapour pipe, with abrasion resistant thermocouple thermometer monitoring solution temperature.Acid inlet tube adds acid solution in groove, monitors pH value of solution with industrial ph, controls the switching of butterfly valve, makes the pH value in leaching vat keep constant.Thermal insulation layer is stablized the temperature in leaching vat effectively.Thereby for reaction provides stable temperature and sour environment, shorten significantly the time of Leaching reaction, improved leaching yield.Water screw is low from position, the end, can effectively alleviate the deposition of ore particle to avoid discharge gate to stop up; Even when stopping up appears in discharge gate, close discharge gate and slag-drip opening, can utilize high pressure water washing by wash-down water entrance, can eliminate in time obstruction.
Therefore, the present invention has long service life, production efficiency is high and leaching yield is high feature.This equipment can use separately, also multiple devices in series can be become multiple stage circulation agitation leach equipment to use.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the schematic top plan view of Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, not the restriction to its protection domain.
embodiment 1
An extracting vanadium from stone coal stirred leaching tank for the permanent pH value of constant temperature, as depicted in figs. 1 and 2: extracting vanadium from stone coal stirred leaching tank comprises cell body 6, whipping appts 9, acid inlet tube 14, four-way pipe 1, ball float scale 15, abrasion resistant thermocouple thermometer 20, industrial ph 23, vapour pipe 22 and upflow tube 24.
Cell body 6 is made up of groove top, groove body and bottom land, and groove top and bottom land be concentricity corresponding connection of top and bottom with groove body by bolt.
Groove top is made up of top liner 11 and top cover 12, and top liner 11 is close to the lower plane of top cover 12.The center position on groove top is provided with whipping appts 9 actively, and groove is equipped with acid inlet tube 14, abrasion resistant thermocouple thermometer 20, loading hopper 30 and industrial ph 23 on top regularly, and groove is provided with ball float scale 15 on top actively.
The inwall of groove body is working lining 5, and the outer wall of groove body is surrounding layer 10, and enhancement Layer 7 is close to working lining 5, between enhancement Layer 7 and surrounding layer 10, is thermal insulation layer 8; The top of groove body is provided with upflow tube 24, and the distance that upflow tube 24 center and groove are held is with it 1.2～1.5 times of upflow tube 24 diameters.
Bottom land is made up of bottom shell 3 and bottom liner 4, and bottom liner 4 is close to the upper surface of bottom shell 3; The angle of the bottom land conical surface and horizontal plane is 3～5 o; The center position of bottom land is fixedly provided with four-way pipe 1.
Whipping appts 9 is made up of motor 17, shaft coupling 18, stir shaft 16, flat oar 26 and water screw 27.Motor 17 is fixedly mounted on outer support, and motor 17 connects with stir shaft 16 by shaft coupling 18; Stir shaft 16 is the tubular shaft of upper end sealing, and hollow parts is vapour passage 25; Near stir shaft 16 upper ends, swivel joint 19 being housed actively, vapour pipe 22 is housed on swivel joint 19 regularly, vapour pipe 22 communicates with the vapour passage 25 of stir shaft 16 by swivel joint 19; Stir shaft 16 length that stretch in cell body 6 are 7/8～8/9 of working lining 5 height, and water screw 27 is equipped with in the lower end of stir shaft 16, and flat oar 26 is housed above water screw 27, and water screw 27 is 1/6～1/5 of working lining 5 height with the distance of flat oar 26.
The material of described bottom liner 4, working lining 5 and top liner 11 is tetrafluoroethylene, and thickness is 2～3mm.
Described thermal insulation layer 8 is mineral wool, and thickness is 55～60mm.
Described bottom shell 3, enhancement Layer 7, surrounding layer 10, top cover 12 are stainless steel; The thickness of surrounding layer 10 is 2.5～3mm, and the thickness of bottom shell 3, enhancement Layer 7 and top cover 12 is 5.5～6mm.
A horizontal mouth of pipe of described four-way pipe 1 is wash-down water entrance 2, and another horizontal mouth of pipe is discharge gate 28, is slag-drip opening 29 towards lower nozzle.
The length of described flat oar (26) is 1/2～3/5 of working lining (5) inwall radius.
The length of described water screw 27 is 1/4～3/10 of working lining 5 inwall radiuses.
embodiment 2
An extracting vanadium from stone coal stirred leaching tank for the permanent pH value of constant temperature, except following technical parameter, all the other are with embodiment 1.
The distance that upflow tube 24 center and groove are held is with it 1～1.3 times of upflow tube 24 diameters.
The thickness of described thermal insulation layer 8 is 50～55mm
The thickness of surrounding layer 10 is 2～2.5mm, and the thickness of bottom shell 3, enhancement Layer 7 and top cover 12 is 5～5.5mm.
The length of described flat oar (26) is 3/5～2/3 of working lining (5) inwall radius.
The length of described water screw 27 is 3/10～1/3 of working lining 5 inwall radiuses.
Four-way pipe 1, bottom liner 4, working lining 5, top liner 11 and the upflow tube 24 of this embodiment all adopts the extremely strong tetrafluoroethylene of acid resistance (PTFE) material, the requirement of the acidproof and heatproof of leaching vat can not only be met simultaneously, and the work-ing life of leaching vat can be effectively improved.
When leaching vat are started working, upflow tube 24, wash-down water entrance 2, discharge gate 28 and slag-drip opening 29 are all closed, and the slip good with acid solution proportioning enters leaching vat by loading hopper 30, and the degree of depth reaches the stirring that starts of working lining 5 height at 2/3 o'clock; Then open discharge gate 28, control the aperture of blow-off valve so that the interior liquid level of groove keeps constant; Open admission valve 21 simultaneously and in leaching vat, pass into hot steam by vapour pipe 22, monitor solution temperature with abrasion resistant thermocouple thermometer 20.Acid inlet tube 14 adds acid solution in groove, monitors pH value of solution with industrial ph, controls the switching of butterfly valve 13, makes the pH value in leaching vat keep constant.Thermal insulation layer 8 is stablized the temperature in leaching vat effectively.Thereby for reaction provides stable temperature and sour environment, shorten significantly the time of Leaching reaction, improved leaching yield.Water screw 27 is low from position, the end, can effectively alleviate the deposition of ore particle to avoid discharge gate 28 to stop up; Even when stopping up appears in discharge gate 28, close discharge gate 28 and slag-drip opening 29, can utilize high pressure water washing by wash-down water entrance 2, can eliminate in time obstruction.
Therefore, this embodiment has long service life, production efficiency is high and leaching yield is high feature.This equipment can use separately, also multiple devices in series can be become multiple stage circulation agitation leach equipment to use.
Claims (7)
1. an extracting vanadium from stone coal stirred leaching tank for the permanent pH value of constant temperature, is characterized in that described extracting vanadium from stone coal stirred leaching tank comprises cell body (6), whipping appts (9), acid inlet tube (14), four-way pipe (1), ball float scale (15), abrasion resistant thermocouple thermometer (20), industrial ph (23), vapour pipe (22) and upflow tube (24);
Cell body (6) is made up of groove top, groove body and bottom land, and groove top and bottom land be concentricity corresponding connection of top and bottom with groove body by bolt;
Groove top is made up of top liner (11) and top cover (12), and top liner (11) is close to the lower plane of top cover (12); The center position on groove top is provided with whipping appts (9) actively, groove is equipped with acid inlet tube (14), abrasion resistant thermocouple thermometer (20), loading hopper (30) and industrial ph (23) on top regularly, and groove is provided with ball float scale (15) on top actively;
The inwall of groove body is working lining (5), the outer wall of groove body is surrounding layer (10), enhancement Layer (7) is close to working lining (5), between enhancement Layer (7) and surrounding layer (10), is thermal insulation layer (8); The top of groove body is provided with upflow tube (24), and the distance that the center of upflow tube (24) and groove are held is with it 1～1.5 times of upflow tube (24) diameter;
Bottom land is made up of bottom shell (3) and bottom liner (4), and bottom liner (4) is close to the upper surface of bottom shell (3); The angle of the bottom land conical surface and horizontal plane is 3～5 o; The center position of bottom land is fixedly provided with four-way pipe (1);
Whipping appts (9) is made up of motor (17), shaft coupling (18), stir shaft (16), flat oar (26) and water screw (27); Motor (17) is fixedly mounted on outer support, and motor (17) connects with stir shaft (16) by shaft coupling (18); Stir shaft (16) is the tubular shaft of upper end sealing, and hollow parts is vapour passage (25); Near stir shaft (16) upper end, swivel joint (19) is being housed actively, vapour pipe (22) is housed on swivel joint (19) regularly, and vapour pipe (22) communicates with the vapour passage (25) of stir shaft (16) by swivel joint (19); Stir shaft (16) length stretching in cell body (6) is 7/8～8/9 of working lining (5) height, water screw (27) is equipped with in the lower end of stir shaft (16), in water screw (27) top, flat oar (26) is housed, water screw (27) is 1/6～1/5 of working lining (5) height with the distance of flat oar (26).
2. the extracting vanadium from stone coal stirred leaching tank of the permanent pH value of constant temperature according to claim 1, the material that it is characterized in that described bottom liner (4), working lining (5) and top liner (11) is tetrafluoroethylene, and thickness is 2～3mm.
3. the extracting vanadium from stone coal stirred leaching tank of the permanent pH value of constant temperature according to claim 1, is characterized in that described thermal insulation layer (8) is mineral wool, and thickness is 50～60mm.
4. the extracting vanadium from stone coal stirred leaching tank of the permanent pH value of constant temperature according to claim 1, is characterized in that described bottom shell (3), enhancement Layer (7), surrounding layer (10), top cover (12) are stainless steel; The thickness of surrounding layer (10) is 2～3mm, and the thickness of bottom shell (3), enhancement Layer (7) and top cover (12) is 5～6mm.
5. the extracting vanadium from stone coal stirred leaching tank of the permanent pH value of constant temperature according to claim 1, a horizontal mouth of pipe that it is characterized in that described four-way pipe (1) is wash-down water entrance (2), another horizontal mouth of pipe is discharge gate (28), is slag-drip opening (29) towards lower nozzle.
6. the extracting vanadium from stone coal stirred leaching tank of the permanent pH value of constant temperature according to claim 1, the length that it is characterized in that described flat oar (26) is 1/2～2/3 of working lining (5) inwall radius.
7. the extracting vanadium from stone coal stirred leaching tank of the permanent pH value of constant temperature according to claim 1, the length that it is characterized in that described water screw (27) is 1/4～1/3 of working lining (5) inwall radius.
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| CN201310355179.8A CN103397210B (en) | 2013-08-15 | 2013-08-15 | Constant-temperature constant-pH-value stone coal vanadium extraction agitation leaching tank |
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| CN201310355179.8A CN103397210B (en) | 2013-08-15 | 2013-08-15 | Constant-temperature constant-pH-value stone coal vanadium extraction agitation leaching tank |
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| CN103397210B true CN103397210B (en) | 2014-07-30 |
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| CN103695642A (en) * | 2013-12-10 | 2014-04-02 | 王安劳 | Dual-impeller hollow-shaft inflated stirred leaching tank |
| CN115679126A (en) * | 2022-10-08 | 2023-02-03 | 武汉科技大学 | Vanadium shale step continuous leaching system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202626264U (en) * | 2012-05-28 | 2012-12-26 | 淅川县玉典钒业有限责任公司 | Sulfuric acid leaching tank device for vanadium extraction |
| CN203393210U (en) * | 2013-08-15 | 2014-01-15 | 武汉科技大学 | Agitation leaching equipment with constant temperature and constant pH (Potential of Hydrogen) value for leaching vanadium from stone coal |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202626264U (en) * | 2012-05-28 | 2012-12-26 | 淅川县玉典钒业有限责任公司 | Sulfuric acid leaching tank device for vanadium extraction |
| CN203393210U (en) * | 2013-08-15 | 2014-01-15 | 武汉科技大学 | Agitation leaching equipment with constant temperature and constant pH (Potential of Hydrogen) value for leaching vanadium from stone coal |
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