Gas distributor and stirring reaction equipment

Abstract

The utility model relates to a gas distributor and stirring reaction equipment. The gas distributor comprises a gas inlet pipe, a gas distribution ring pipe and m spray pipes, the other end of the gas inlet pipe is communicated with the gas distribution ring pipe, the m spray pipes are arranged on the gas distribution ring pipe at intervals and are communicated with the gas distribution ring pipe, and the m spray pipes are used for surrounding stirring blades of the stirring reaction equipment; the outlet of the spray pipe is positioned between the stirring blade and the bottom wall surface of the reaction kettle of the stirring reaction equipment, and is adjacent to or positioned on the extension surface of the edge of the stirring blade in the axial direction of the stirring blade. The gas distributor disclosed by the utility model is simple in structure, does not interfere with the stirrer, does not influence the rotation stability of the stirring blades, has a good mixing effect of gas and ore pulp, and can improve the mass transfer rate of the gas-liquid surface, so that the mass transfer or chemical reaction is more sufficient, thereby improving the gas utilization rate, saving the use cost of valuable gas, and being beneficial to popularization and application. Meanwhile, the production efficiency of the stirring reaction equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metallurgical industry stirring reaction equipment, specifically relates to a gas distributor and stirring reaction equipment. BACKGROUND

[0002] Vertical atmospheric stirring reactor is widely used in various processes of non-ferrous metal hydrometallurgy, such as batching, slurry, leaching, crystallization, dissolution, reduction, decomposition and extraction processes. For example, a large-scale lead-zinc smelter with an output of 100,000 tons of electrolytic zinc, the stirring equipment in the main process can reach more than 80. In order to strengthen the stirring and mixing reaction process, oxygen, compressed air and sulfur dioxide and other reaction gases are usually introduced.

[0003] In related technologies, according to the position of the gas inlet pipe, the gas distribution of the vertical stirring reactor is usually divided into three schemes: side straight jet from the top cover, bottom side introduction and center gas inlet of the stirring shaft. For the structure of side straight jet from the top cover, the dispersion effect of the paddle stirring is poor, and the valuable gas utilization rate is low. At the same time, due to uneven gas dispersion, the stability of the stirring paddle rotation is affected, causing the stirring transmission device to shake, and further affecting the service life of the equipment. For the structure of bottom side gas introduction, but because the gas inlet pipe is completely immersed below the liquid surface, and the gas jet port is upward, the gas volume is reduced or stopped, which is easy to cause the ore slurry to enter the pipeline and deposit, and the bottom horizontal jet pipe is easy to accumulate material and cause pipeline blockage, increasing the cleaning difficulty. In addition, due to the constraint of the habitable arrangement scheme of the workshop cooperation pipeline and platform, the external pipeline of the bottom side gas inlet pipe is easy to interfere with other configuration structures in the plant area. For the structure of center gas inlet of the stirring shaft, special shaft gas inlet transmission device and stirring shaft must be used, and the investment cost and maintenance and replacement cost are relatively high. When the gas volume changes, the size of the gas jet port cannot be adjusted or the gas jet pipe cannot be replaced, and the working condition adaptability is insufficient. SUMMARY

[0004] The utility model aims at at least in certain extent solves one of the technical problems in the related art.

[0005] Therefore, the embodiment of the utility model provides a gas distributor, which is simple in structure, does not affect the stability of the rotation of the stirring paddle, has good mixing effect of gas and ore slurry, can improve the mass transfer rate of the gas-liquid surface, makes the mass transfer or chemical reaction more sufficient, thereby improves the gas utilization rate, saves the use cost of valuable gas, and improves the production efficiency of the stirring reaction equipment.

[0006] The embodiment of the utility model provides a stirring reaction equipment.

[0007] The gas distributor according to the embodiment of the utility model, adopt the gas distribution mode of upper air inlet and lower multi-point air injection, simple structure, the installation of pipeline does not need to transform the reaction kettle too much, does not produce interference with the stirrer, does not affect the stability of the rotation of the stirring blade, and, the mixing effect of gas and ore pulp is good, can improve the mass transfer rate of gas-liquid surface, make the mass transfer or chemical reaction more sufficient, thereby improve the gas utilization rate, save the use cost of valuable gas, improve the production efficiency of the stirring reaction equipment simultaneously.

[0008] The gas distributor according to the embodiment of the utility model, adopt the gas distribution mode of upper air inlet and lower multi-point air injection, simple structure, the installation of pipeline does not need to transform the reaction kettle too much, does not produce interference with the stirrer, does not affect the stability of the rotation of the stirring blade, and, the mixing effect of gas and ore pulp is good, can improve the mass transfer rate of gas-liquid surface, make the mass transfer or chemical reaction more sufficient, thereby improve the gas utilization rate, save the use cost of valuable gas, improve the production efficiency of the stirring reaction equipment simultaneously.

[0009] In some embodiments, the spray pipe comprises a first pipe section and a second pipe section, one end of the first pipe section is connected with the gas distribution ring pipe, the extension direction of the first pipe section is parallel to the axial direction of the stirring blade, the other end of the first pipe section is connected with one end of the second pipe section, at least one of the first pipe section and the second pipe section is opposite to the stirring blade in the radial direction of the stirring blade, the second pipe section extends towards the stirring blade, the other end of the second pipe section is spaced apart from the stirring blade, and the other end of the second pipe section is adjacent to or located on the extension surface of the edge of the stirring blade in the axial direction of the stirring blade.

[0010] In some embodiments, the spray pipe further comprises a third pipe section, one end of the third pipe section is connected with the other end of the second pipe section, the third pipe section is parallel to the first pipe section, and the other end of the third pipe section is away from the second pipe section.

[0011] In some embodiments, the gas distributor further comprises a connecting pipe and a pipe plug, the connecting pipe has n, n >= m, n connecting pipes are arranged on the gas distribution ring pipe in a spaced manner and are communicated with the gas distribution ring pipe, wherein, m connecting pipes are detachably connected with the spray pipe, x connecting pipes are detachably connected with the pipe plug to close the connecting pipe, and x = n-m.

[0012] In some embodiments, the connecting pipe is provided with external threads, the gas distributor further comprises a fastening ring, one end of the fastening ring is sleeved on the spout, the other end of the fastening ring is provided with first internal threads, and the fastening ring is connected with the connecting pipe through cooperation of the first internal threads and the external threads; the pipe plug is provided with a matching groove, the matching groove is provided with second internal threads, and the pipe plug is connected with the connecting pipe through cooperation of the second internal threads and the external threads.

[0013] In some embodiments, the gas distributor further comprises a gasket, the gasket is arranged between the connecting pipe and the spout, and the gasket is arranged between the connecting pipe and the pipe plug.

[0014] In some embodiments, the connecting pipe is provided with a first fixing ring, the first fixing ring is provided with the external threads; the spout is provided with a second fixing ring, the second fixing ring is provided with a ring groove, and the one end of the fastening ring is provided with a limiting convex ring, the limiting convex ring is sleeved on the ring groove.

[0015] In some embodiments, the gas distributor further comprises a plurality of support columns, one end of each of the support columns is connected with the gas distribution ring pipe, the support columns are opposite to the stirring paddle in the radial direction of the stirring paddle, the other end of each of the support columns is used for connecting a reaction kettle of a stirring reaction equipment, and the plurality of support columns are arranged at intervals.

[0016] The stirring reaction equipment provided by the embodiment of the utility model discloses a reaction kettle, a stirrer and a gas distributor, the stirrer has a stirring paddle, the stirring paddle is located in the reaction kettle, the gas inlet pipe is arranged on the reaction kettle, and m spouts surround the stirring paddle.

[0017] The stirring reaction equipment provided by the embodiment of the utility model has the advantages that the stirring paddle rotates stably, the mixing effect of gas and ore pulp is good, the mass transfer rate of the gas-liquid surface can be improved, the mass transfer or chemical reaction is more sufficient, the gas utilization rate is improved, the use cost of valuable gas is saved, and the production efficiency of the stirring reaction equipment is improved.

[0018] In some embodiments, the stirring reaction equipment further comprises a baffle, and the baffle is arranged on the inner wall surface of the reaction kettle. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the gas distributor of the embodiment of the utility model;

[0020] Figure 2 It is a structure schematic view of the stirring reaction equipment of the embodiment of the utility model;

[0021] Figure 3is a structural schematic view of the stirring reaction equipment of the embodiment of the utility model;

[0022] Figure 4 is a structural schematic view of the connecting pipe, the spray pipe and the fastening ring of the embodiment of the utility model;

[0023] Figure 5 is a structural schematic view of the connecting pipe and the pipe plug of the embodiment of the utility model.

[0024] Reference signs:

[0025] Stirring reaction equipment 1000;

[0026] Gas distributor 100;

[0027] Gas inlet pipe 1, gas distribution ring pipe 2, spray pipe 3, first pipe section 301, second pipe section 302, third pipe section 303, second fixing ring 31, connecting pipe 4, first fixing ring 41, pipe plug 5, fastening ring 6, limiting convex ring 61, support stand 7, gasket 8;

[0028] Stirring paddle 200, reaction kettle 300, stirring shaft 400, baffle 500. DETAILED DESCRIPTION

[0029] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0030] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model. Figures 1 to 5

[0031] The stirring reaction equipment 1000 of the embodiment of the utility model comprises a reaction kettle 300, a stirrer and a gas distributor 100.

[0032] The stirrer has a stirring paddle 200, and the stirring paddle 200 is located in the reaction kettle 300. The stirrer also has a stirring shaft 400, one end of the stirring shaft 400 is rotatably arranged on the reaction kettle 300, and the other end of the stirring shaft 400 is provided with the stirring paddle 200.

[0033] The gas distributor 100 of the embodiment of the utility model comprises a gas inlet pipe 1, a gas distribution ring pipe 2 and m spray pipes 3. The gas inlet pipe 1 is arranged on the reaction kettle 300, one end of the gas inlet pipe 1 is used for communicating with a gas source, the other end of the gas inlet pipe 1 communicates with the gas distribution ring pipe 2, the m spray pipes 3 are arranged on the gas distribution ring pipe 2 at intervals and communicate with the gas distribution ring pipe 2, and the m spray pipes 3 surround the stirring paddle 200. In the axial direction of the stirring paddle 200 (for example, the axial direction of the stirring shaft 400), the m spray pipes 3 are arranged on the gas distribution ring pipe 2 at intervals. Figure 2 ​In the axial direction of the stirring paddle 200 (i.e. the up-down direction), the outlet of the spray pipe 3 is located between the stirring paddle 200 and the bottom wall surface of the reaction kettle 300.

[0034] The gas distribution method according to the embodiment of the present application, according to the gas distributor 100 of the embodiment of the present application, one end of the gas inlet pipe 1 is communicated with the gas source, the gas enters the gas distribution ring pipe 2 through the gas inlet pipe 1, and then is sprayed out from the outlets of the plurality of spray pipes 3.

[0035] The stirring reaction equipment 1000 in use, as shown in Figure 2 The stirring shaft 400 extends in the up-down direction, the axial direction of the stirring paddle 200 is the same as the up-down direction, the reaction kettle 300 stores the ore pulp, the liquid level of the ore pulp is above the stirring paddle 200, the one end (upper end) of the gas inlet pipe 1 is communicated with the gas source, the gas enters the gas distribution ring pipe 2 from the gas inlet pipe 1, and then flows to the plurality of spray pipes 3 and is sprayed out from the outlets of the spray pipes 3.

[0036] The gas distributor 100 of the embodiment of the present application introduces the gas through the gas inlet pipe 1, which is the same as the single-pipe upper gas inlet mode of the reaction equipment in the related art, and does not increase the number of external pipes of the reaction kettle 300. The gas is sprayed out from the outlets of the m spray pipes 3 after passing through the gas distribution ring pipe 2. In the first aspect, the plurality of spray pipes 3 surrounding the stirring paddle 200 does not affect the stability of the rotation of the stirring paddle 200, and ensures the stirring effect of the stirring paddle 200 on the ore pulp. In the second aspect, the m spray pipes 3 form multi-point (i.e. m points) gas spraying, the multi-point gas spraying makes the gas more dispersed in the circumferential direction of the stirring paddle 200, and makes the distribution of the gas in the ore pulp more uniform, so as to improve the contact area of the gas and the ore pulp, and then improve the mass transfer rate of the gas-liquid surface, and promote the mass transfer or chemical reaction. In the third aspect, in the axial direction of the stirring paddle 200 (i.e. the up-down direction), the outlet of the spray pipe 3 is located between the stirring paddle 200 and the bottom wall surface of the reaction kettle 300, so that the outlet of the spray pipe 3 extends into the ore pulp deeply and is located below the stirring paddle 200, which is beneficial to improving the residence time of the gas in the ore pulp, so as to improve the contact time of the gas and the ore pulp, and then improve the mass transfer rate of the gas-liquid surface, and promote the mass transfer or chemical reaction. In the fourth aspect, the outlet of the spray pipe 3 is adjacent to or located on the extension surface of the edge of the stirring paddle 200 in the axial direction of the stirring paddle 200, as shown in Figure 2 and Figure 3The outlet of the spray pipe 3 is adjacent to or directly below the edge of the stirring blade 200, and since the linear speed of the blade end (i.e. the edge of the stirring blade 200) is the maximum, the outlet of the spray pipe 3 sprays the gas at the maximum stirring speed, so that the gas can be quickly dispersed in the ore pulp and form a large contact area with the ore pulp, realizing the rapid mixing and reaction of the gas and the ore pulp, and the bubbles formed in the ore pulp are also easily broken, thereby improving the mass transfer rate of the gas-liquid surface and promoting the mass transfer or chemical reaction.

[0037] Therefore, the gas distributor 100 of the embodiment of the present application adopts the gas distribution mode of upper gas inlet and lower multi-point gas injection, has a simple structure, does not need to make excessive modification to the reaction kettle 300 for installation of the pipeline, does not interfere with the stirrer, does not affect the stability of the rotation of the stirring blade 200, and has good mixing effect of the gas and the ore pulp, can improve the mass transfer rate of the gas-liquid surface, and make the mass transfer or chemical reaction more sufficient, thereby improving the gas utilization rate, saving the use cost of the valuable gas, and improving the production efficiency of the stirring reaction equipment.

[0038] Specifically, the gas inlet pipe 1 extends along the axial direction of the stirring blade 200, and the lower end of the gas inlet pipe 1 is connected to the gas distribution ring pipe 2 through a flange.

[0039] The gas distribution ring pipe 2 includes four ring pipes which are sequentially connected through flanges and are spliced to form a closed circular ring, in other words, the gas distribution ring pipe 2 is circular, and the central axis of the stirring shaft 400 is collinear with the central axis of the gas distribution ring pipe 2.

[0040] The gas distribution ring pipe 2 can flexibly adjust the number of segments of the gas distribution ring pipe 4 according to the actual working condition. The structure of the segmented connection of the gas distribution ring pipe 4 through the flange facilitates the assembly and disassembly of the gas distributor 100 of the embodiment of the present application. After the gas distribution ring pipe 4 is segmented, the inside of the equipment can be accessed through the manhole in the side wall of the reaction kettle 300, and the top cover of the reaction kettle 300 does not need to be disassembled during replacement or maintenance.

[0041] Further, the m spray pipes 3 are arranged at equal angles on the gas distribution ring pipe 2, and the m spray pipes 3 are uniformly distributed on the gas distribution ring pipe 2, so that the gas sprayed from the outlets of the m spray pipes 3 is more uniformly distributed in the ore pulp, which is beneficial to further improve the mass transfer rate of the gas-liquid surface, make the mass transfer or chemical reaction more sufficient, further improve the gas utilization rate, and further improve the production efficiency of the stirring reaction equipment.

[0042] In some embodiments, the gas distributor 100 further includes connecting pipes 4 and pipe plugs 5. There are n connecting pipes 4, where n ≥ m. The n connecting pipes 4 are spaced apart on the gas distribution ring pipe 2 and communicate with it. M connecting pipes 4 are detachably connected to the nozzles 3, and x connecting pipes 4 are detachably connected to the pipe plugs to seal the connecting pipes 4, where x = nm and x ≥ 0. The gas distributor 100, through the detachable connection between the connecting pipes 4 and the nozzles 3, and through the detachable connection between the connecting pipes 4 and the pipe plugs 5, allows the number of nozzles 3 to be adjusted. This enables flexible adjustment of the number and position of the nozzles 3 according to changes in the air intake demand. Connecting pipes 4 without nozzles 3 installed can be sealed by the pipe plugs 5, thereby ensuring that gas is ejected through the nozzles 3.

[0043] Specifically, n connecting pipes 4 are arranged at equal angular intervals on the air distribution ring pipe 2.

[0044] Preferably, m is a multiple of four, which facilitates the adjustment of the position and number of nozzles 3.

[0045] exist Figure 2 and Figure 3 In the embodiment shown, there are 16 connecting pipes 4, i.e., n = 16, the included angle between two adjacent connecting pipes 4 is 22.5°, and there are 16 nozzles 3, i.e., m = 16, so x = 0.

[0046] In some embodiments, the connecting pipe 4 is provided with external threads, and the gas distributor 100 further includes a fastening ring 6. One end (lower end) of the fastening ring 6 is sleeved on the nozzle 3, and the other end (upper end) of the fastening ring 6 is provided with a first internal thread. The fastening ring 6 is connected to the connecting pipe 4 through the engagement of the first internal thread and the external thread. The fastening ring 6 is threadedly connected to the connecting pipe 4, which is a simple connection method and convenient operation, thereby facilitating the installation and removal of the nozzle 3 on the connecting pipe 4.

[0047] The plug 5 is provided with a mating groove, which is a circular groove with a second internal thread inside. The plug 5 is connected to the connecting pipe 4 through the mating of the second internal thread and the external thread. The plug 5 and the connecting pipe 4 are connected by threads, which is a simple connection method and easy to operate. This facilitates the installation and removal of the plug 5 on the connecting pipe 4, thereby further improving the convenience of adjusting the number and position of the nozzles 3.

[0048] In some embodiments, the connecting pipe 4 is provided with a first fixing ring 41, and the first fixing ring 41 is provided with an external thread. The nozzle 3 is provided with a second fixing ring 31, and the second fixing ring 31 is provided with an annular groove. One end of the fastening ring 6 is provided with a limiting protrusion 61, which is sleeved on the annular groove and can rotate relative to the second fixing ring 31.

[0049] like Figure 4As shown, the lower end of the fastening ring 6 is provided with a limiting convex ring 61. When it is required to install the spray pipe 3 on the connecting pipe 4, the lower end (outlet end) of the spray pipe 3 is first arranged in the fastening ring 6, the fastening ring 6 is moved from the lower end of the spray pipe 3 to the second fixing ring 31 of the upper end of the spray pipe 3, the limiting convex ring 61 is sleeved on the ring groove of the first fixing ring 41, then the fastening ring 6 is sleeved on the first fixing ring 41 of the connecting pipe 4, the first internal thread is engaged with the external thread by rotating the fastening ring 6, and the fastening ring 6 is tightened, so as to fix the spray pipe 3, that is, the connection of the spray pipe 3 and the connecting pipe 4 is completed. When it is required to remove the spray pipe 3, the fastening ring 6 is unscrewed from the connecting pipe 4, and then the spray pipe 3 is separated from the connecting pipe 4.

[0050] Specifically, the first fixing ring 41 is welded and fixed on the connecting pipe 4, and the second fixing ring 31 is welded and fixed on the spray pipe 3. The outer diameter of the second fixing ring 31 is smaller than the outer diameter of the first fixing ring 41.

[0051] In some embodiments, the gas distributor 100 further comprises a gasket 8.

[0052] The gasket 8 is arranged between the connecting pipe 4 and the spray pipe 3. Specifically, as shown in Figure 4 As shown, the gasket 8 is arranged between the first fixing ring 41 of the connecting pipe 4 and the second fixing ring 31 of the spray pipe 3. In the state of tightening the fastening ring 6, the lower side of the gasket 8 abuts against the second fixing ring 31, and the upper side of the gasket 8 abuts against the first fixing ring 41. The gasket 8 has a certain elasticity and friction, which can avoid the hard collision between the first fixing ring 41 and the second fixing ring 31, and ensure the stability of the second fixing ring 31 and the spray pipe 3 in the tightened state of the fastening ring 6.

[0053] The gasket 8 is arranged between the connecting pipe 4 and the pipe plug 5. Specifically, as shown in Figure 5 As shown, the gasket 8 is arranged between the first fixing ring 41 and the pipe plug 5. The upper side of the gasket 8 abuts against the first fixing ring 41, and the lower side of the gasket 8 abuts against the pipe plug 5, so as to ensure the stability of the connection between the pipe plug 5 and the first fixing ring 41.

[0054] In some embodiments, the spray pipe 3 comprises a first pipe section 301 and a second pipe section 302. One end (upper end) of the first pipe section 301 is connected with the gas distribution ring pipe 2, the extending direction of the first pipe section 301 is parallel with the axial direction of the stirring blade 200, and the other end (lower end) of the first pipe section 301 is connected with one end (upper end) of the second pipe section 302. Specifically, the upper end of the first pipe section 301 is provided with a second fixing ring 31. At least one of the first pipe section 301 and the second pipe section 302 is opposite to the stirring blade 200 in the radial direction of the stirring blade 200, the second pipe section 302 extends towards the stirring blade 200, and the other end (lower end) of the second pipe section 302 is spaced apart from the stirring blade 200, and in the axial direction of the stirring blade 200, the other end of the second pipe section 302 is adjacent to or located at the extending surface of the edge of the stirring blade 200 in the axial direction of the stirring blade 200. The second pipe section 302 of the spray pipe 3 is bent relative to the first pipe section 301, which ensures that the other end of the second pipe section 302 is adjacent to or located directly below the edge of the stirring blade 200, while ensuring that the first pipe section 301 has a certain distance from the stirring blade 200, avoiding interference between the spray pipe 3 and the stirring blade 200, and also facilitating the installation and removal of the spray pipe 3 in the reaction kettle 300, and improving the convenience of adjusting the number and position of the spray pipe 3.

[0055] In some embodiments, the spray pipe 3 further comprises a third pipe section 303, one end (upper end) of the third pipe section 303 is connected with the other end of the second pipe section 302, the third pipe section 303 is parallel with the first pipe section 301, and the other end (lower end) of the third pipe section 303 is away from the second pipe section 302, and the other end of the third pipe section 303 forms the outlet of the spray pipe 3. Therefore, when the gas is sprayed from the other end of the third pipe section 303, it is downward, and the gas injection direction is tangent to the rotation direction of the stirring blade 200, which can avoid the gas from gathering in the same direction, and is more conducive to the dispersion of the gas in the ore slurry, thereby further improving the mass transfer rate of the gas-liquid interface, making the mass transfer or chemical reaction more sufficient, further improving the utilization rate of the gas, and further improving the production efficiency of the stirring reaction equipment.

[0056] During the installation of the spray pipe 3 to the connecting pipe 4, the circumferential angle of the spray pipe 3 can be adjusted according to the working condition requirements and the type of the stirring blade 200. Before tightening the fastening ring 6, the position of the spray pipe 3 in the circumferential direction can be adjusted by rotating the spray pipe 3, the orientation of the second pipe section 302 is adjusted, and the position of the outlet of the third pipe section 303 (i.e. the outlet of the spray pipe 3) is adjusted. After adjustment, the fastening ring 6 is tightened. In this way, the circumferential angle of the spray pipe 3 can be flexibly adjusted, the position of the second pipe section relative to the stirring blade can be changed, and thus the requirements of different stirring speeds and stirring blade types can be met.

[0057] As Figure 4As shown, the outlet of the third pipe section 303 (i.e. the outlet of the spray pipe 3) is located on the extension plane of the edge of the stirring blade 200 in the axial direction of the stirring blade 200. The projection plane of the second pipe section 302 on the radial cross section of the stirring blade 200 extends in the radial direction of the stirring blade 200.

[0058] In addition, according to the type of the stirring blade 200, the spray pipe 3 with different bending angles (the bending angle of the second pipe section 302 relative to the first pipe section 301) can be manufactured without replacing the gas inlet pipe and the gas distribution ring pipe of the gas distributor, thereby increasing the applicability of the gas distributor 100 of the embodiment of the utility model to different stirring blades and improving the utilization rate of the gas distributor 100.

[0059] In some embodiments, the gas distributor 100 further comprises a plurality of support columns 7, one end (upper end) of the support column 7 is connected with the gas distribution ring pipe 2, the support column 7 is opposite to the stirring blade 200 in the radial direction of the stirring blade 200, the other end (lower end) of the support column 7 is connected with the reaction kettle 300 of the stirring and reaction equipment 1000, and the plurality of support columns 7 are arranged at intervals. The support column 7 not only can provide stable support for the gas distribution ring pipe 2 and ensure the stability of the gas distribution ring pipe 2 and the spray pipe 3 in the stirring state, but also can change the flow pattern of the ore pulp medium and improve the flow state of the ore pulp in the reaction kettle 300. Without increasing the power and rotating speed of the stirrer, the swirling phenomenon of the medium in the reaction kettle 300 can be better eliminated (when the rotating speed of the stirrer is high, the liquid moves together with the rotating direction of the blade, the medium in the middle part of the stirring equipment is pushed to the inner wall of the reaction kettle under the action of the centrifugal force and rises, the liquid surface in the center part drops, a vortex is formed, and the phenomenon of the swirling area is called the swirling phenomenon). Meanwhile, the stirring liquid flow shears the bubbles, further increases the gas dispersion effect, reduces the consumption of the useless power of the stirrer, improves the stirring effect, and has good energy-saving effect.

[0060] Specifically, the support column 7 is connected with the gas distribution ring pipe 2 through a flange. Figure 2 In the embodiment shown, four support columns 7 are arranged, and the number of the support columns 7 can be adjusted according to the inner diameter size of the reaction kettle 300, the gas inlet amount, the inner pressure of the reaction kettle 300, the weight of the gas distribution ring pipe 2 and the spray pipe 3.

[0061] In some embodiments, the stirring and reaction equipment 1000 further comprises a baffle 500 arranged on the inner wall of the reaction kettle 300. The baffle 500 can change the flow pattern of the ore pulp medium and improve the flow state of the ore pulp in the reaction kettle 300. The baffle 500 and the support column 7 jointly act to further increase the gas dispersion effect, reduce the consumption of the useless power of the stirrer, improve the stirring effect, and have good energy-saving effect.

[0062] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0063] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0064] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0065] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0066] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0067] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A gas distributor (100), characterized in that, The gas distributor (100) comprises an air inlet pipe (1), a gas distribution ring pipe (2) and m spray pipes (3), one end of the air inlet pipe (1) is used for communicating with an air source, the other end of the air inlet pipe (1) is communicated with the gas distribution ring pipe (2), m spray pipes (3) are arranged on the gas distribution ring pipe (2) at intervals and communicated with the gas distribution ring pipe (2), m spray pipes (3) are used for surrounding the stirring paddle of the stirring reaction device (1000), in the axial direction of the stirring paddle (200), the outlet of the spray pipe (3) is located between the stirring paddle (200) and the bottom wall of the reaction kettle (300) of the stirring reaction device (1000), the outlet of the spray pipe (3) is adjacent to or located on the extension surface of the edge of the stirring paddle (200) in the axial direction of the stirring paddle (200).

2. The gas distributor (100) according to claim 1, characterized in that The spray pipe (3) comprises a first pipe section (301) and a second pipe section (302), one end of the first pipe section (301) is connected with the gas distribution ring pipe (2), the extension direction of the first pipe section (301) is parallel to the axial direction of the stirring paddle (200), the other end of the first pipe section (301) is connected with one end of the second pipe section (302), at least one of the first pipe section (301) and the second pipe section (302) is opposite to the stirring paddle (200) in the radial direction of the stirring paddle (200), the second pipe section (302) extends towards the stirring paddle (200), the other end of the second pipe section (302) is spaced apart from the stirring paddle (200), the other end of the second pipe section (302) is adjacent to or located on the extension surface of the edge of the stirring paddle (200) in the axial direction of the stirring paddle (200).

3. The gas distributor (100) according to claim 2, characterized in that The spray pipe (3) further comprises a third pipe section (303), one end of the third pipe section (303) is connected with the other end of the second pipe section (302), the third pipe section (303) is parallel to the first pipe section (301), the other end of the third pipe section (303) is away from the second pipe section (302).

4. The gas distributor (100) according to claim 1, characterized in that Further comprising a connecting pipe (4) and a pipe plug (5), the connecting pipe (4) has n, n≥m, n connecting pipes (4) are arranged on the gas distribution ring pipe (2) at intervals and communicated with the gas distribution ring pipe (2), wherein m connecting pipes (4) are detachably connected with the spray pipe (3), x connecting pipes (4) are detachably connected with the pipe plug (5) to close the connecting pipe (4), x=n-m.

5. The gas distributor (100) according to claim 4, characterized in that The connecting pipe (4) is provided with external threads, the gas distributor (100) further comprises a fastening ring (6), one end of the fastening ring (6) is sleeved on the spray pipe (3), the other end of the fastening ring (6) is provided with first internal threads, the fastening ring (6) is connected with the connecting pipe (4) through the cooperation of the first internal threads and the external threads; the pipe plug (5) is provided with a matching groove, the matching groove is provided with second internal threads, the pipe plug (5) is connected with the connecting pipe (4) through the cooperation of the second internal threads and the external threads.

6. The gas distributor (100) according to claim 5, characterized in that Further comprising a gasket (8), the gasket (8) is arranged between the connecting pipe (4) and the spout (3), and between the connecting pipe (4) and the pipe plug (5).

7. The gas distributor (100) according to claim 6, characterized in that A first fixing ring (41) is arranged on the connecting pipe (4), the first fixing ring (41) is provided with the external thread; a second fixing ring (31) is arranged on the spout (3), the second fixing ring (31) is provided with a ring groove, and the one end of the fastening ring (6) is provided with a limiting convex ring (61), the limiting convex ring (61) is sleeved on the ring groove.

8. The gas distributor (100) according to claim 1, characterized in that Further comprising a plurality of support columns (7), one end of the support column (7) is connected with the gas distribution ring pipe (2), the support column (7) is opposite to the stirring paddle (200) in the radial direction of the stirring paddle (200), the other end of the support column (7) is used for connecting the reaction kettle (300) of the stirring reaction equipment (1000), and a plurality of support columns (7) are arranged at intervals.

9. A stirred reaction apparatus (1000) characterized by, Comprise a reaction kettle (300), a stirrer and a gas distributor (100), the stirrer has a stirring paddle (200), the stirring paddle (200) is located in the reaction kettle (300), the gas distributor (100) is the gas distributor (100) of any one of claims 1 to 8, the gas inlet pipe (1) is arranged on the reaction kettle (300), and m spouts (3) surround the stirring paddle.

10. The stirred reaction apparatus (1000) according to claim 9, characterized in that Further comprising a baffle (500), the baffle (500) is arranged on the inner wall surface of the reaction kettle (300). Further comprising a baffle (500), the baffle (500) is arranged on the inner wall surface of the reaction kettle (300).

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