Circumferential single-side filtering hollow barrel reaction and concentration all-in-one machine

Abstract

The utility model provides a reaction and concentration all-in-one machine with a circumferential single-side filtering hollow barrel, and belongs to the technical field of concentrators. The device comprises a circumferential single-side filtering hollow barrel, the circumference of the circumferential single-side filtering hollow barrel is arranged near the middle part of a reaction concentrator barrel with a feeding pipe and an overflow discharging pipe, and the circumferential single-side filtering hollow barrel is communicated with the reaction concentrator barrel and is used for controlling the stability of a reaction liquid level in the reaction concentrator barrel in a suction filtration and / or pressurization manner and improving the concentration of the solid quantity of a reaction liquid. According to the utility model, the circumferential single-side filtering hollow barrel is arranged near the middle part of the barrel body of the reaction concentrator and is communicated with the barrel body, so that independent concentration equipment can be reduced, the occupied space is reduced, the energy density of a product is increased, and the solid content is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of concentrators, in particular to a circumferential single-sided filtering hollow barrel reaction concentrator integrated machine. Background Art

[0002] In the invention patents with application numbers CN201910441806.7 and CN201810563797.4, the concentrator and the reactor are independent of each other and connected by pipes or intermediate tanks, resulting in a longer overall process and a large volume of the reaction zone, which has a relatively large impact on the rapid increase in the solid concentration of the reaction system. The crystal growth process during the reaction concentration cannot be quickly corrected, which ultimately affects the overall quality of the product. Utility Model Content

[0003] In view of this, in order to solve the above-mentioned deficiencies in the prior art, the utility model provides a circumferential single-sided filtering hollow barrel reaction concentrator integrated machine, which can reduce independent concentration equipment, reduce floor space, increase product energy density, and improve solid content by arranging the circumferential single-sided filtering hollow barrel near the middle of the reaction concentrator cylinder and connecting it.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A peripheral single-sided filtering hollow barrel reaction and concentration integrated machine, comprising:

[0006] The circumferential single-sided filtering hollow barrel is arranged near the middle of the reaction concentrator barrel with a feed pipe and an overflow discharge pipe. It is connected to the reaction concentrator barrel and is used for filtering and / or pressurizing to control the stability of the reaction liquid level in the reaction concentrator barrel and to increase the solid concentration of the reaction liquid.

[0007] Preferably, the circumferential single-sided filtering hollow barrel has an inner surface and an outer surface, the inner surface is a microporous surface, and the outer surface is a non-porous surface. The inner surface is flush with the inner surface of the reaction concentrator cylinder, and is used to prevent uneven flow of the fluid at the connection between the inner surface of the cylinder and the filtering surface.

[0008] Preferably, the guide channel in the peripheral single-sided filtering hollow barrel is connected to a backwash pipeline and a filtered liquid outlet pipe;

[0009] The backwash pipeline is connected to the filtered liquid outlet pipeline, and a valve is provided on the pipeline connecting the two.

[0010] Preferably, it also includes:

[0011] The stirring device is arranged in the cylinder of the reaction concentrator, and a stirring shaft thereof is provided with multiple layers of stirring blades for making the fluid turn up in the middle and press down around the periphery or press down in the middle and turn up around the periphery.

[0012] Preferably, the outlet end of the feed pipe extends above the end side of the lower stirring blade of the stirring device.

[0013] Preferably, the outlet end of the feed pipe is provided with a bottom cover, and the bottom cover and / or the end is an oval hole and / or a cross slot hole, and the extension pipe or end of the feed pipe is a flat oval pipe.

[0014] Preferably, the utility model further comprises:

[0015] An online sampling device is arranged inside the reaction concentrator cylinder and located at the periphery of the peripheral single-sided filtering hollow barrel.

[0016] Preferably, the outer wall of the reaction concentrator cylinder is provided with a jacket and / or a heat insulation layer.

[0017] Preferably, the reaction concentrator cylinder is provided with a temperature transmitter, a pressure transmitter, a pH transmitter and a liquid level transmitter.

[0018] Preferably, the reaction concentrator cylinder is further provided with a vent valve, a gas supplement valve and a discharge valve.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] The peripheral single-sided filtering hollow barrel reaction concentration integrated machine provided by the utility model can reduce independent concentration equipment, reduce the occupied space, increase the product energy density and improve the solid content by arranging the peripheral single-sided filtering hollow barrel near the middle part of the reaction concentrator cylinder and communicating with the reaction concentrator cylinder.

[0021] The utility model can also improve the product particle size uniformity, make the product particle size distribution narrower, optimize the stirring fluid flow direction, improve the reaction environment, make the reaction in the violent area more sufficient, improve the synthesis efficiency, increase the direct yield, reduce the product thickness of the adhesion layer on the filtering surface, improve the filtering efficiency, reduce the reaction kettle volume, reduce the cost and be more intelligent.

[0022] In the utility model, when the reaction kettle volume is unchanged, the volume of the intermediate tank and the independent concentrator can greatly increase the total volume of the reaction, and under the condition that the feed amount is unchanged, the larger the volume, the slower the solid content concentration of the reaction liquid increases, the smaller the volume, the faster the solid product particle size grows, and the corresponding product particle density changes from loose to more dense, so the energy density also increases correspondingly. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of the utility model;

[0024] In the figure, 1, stirring paddle; 2, lower head jacket and insulation layer; 3, lower head; 4, reaction concentrator cylinder; 5, cylinder jacket and insulation layer; 6, feed pipe; 7, on-line sampling device; 8, overflow discharge regulating valve; 9, reaction concentrator upper cover; 10, temperature transmitter; 11, pressure transmitter; 12, pH transmitter; 13, liquid level transmitter; 14, stirring reducer; 15, stirring motor frequency converter; 16, vent valve; 17, air supply valve; 18, support; 19, circumferential single-face filtering hollow barrel; 20, stirring shaft; 21, filtrate outlet pipe; 22, backflush valve; 23, automatic PLC control cabinet; 24, vacuum device; 25, filtrate outlet regulating valve; 26, flowmeter; 27, filtrate outlet pneumatic on-off valve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0026] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0028] As shown in Figure 1 The present application provides a circumferential single-face filtering hollow barrel 19 reaction concentration integrated machine, which comprises:

[0029] A peripheral single-side filtering hollow barrel 19 is arranged near the middle of the reaction concentrator barrel 4 with the feed pipe 6 and the discharge pipe, and is in communication with the reaction concentrator barrel 4, and is used for filtering and / or pressurizing to control the stability of the reaction liquid level in the reaction concentrator barrel 4 and to increase the reaction liquid concentration. Preferably, the peripheral single-side filtering hollow barrel 19 has an inner surface and an outer surface, the inner surface is a microporous surface, and the outer surface is a non-porous surface, the inner surface is flush with the inner surface of the reaction concentrator barrel 4, and is used for preventing uneven flow of fluid at the connection between the inner surface of the barrel and the filtering surface, and improving the stability of the reaction system product. Preferably, the flow guide channel in the peripheral single-side filtering hollow barrel 19 is communicated with a backwashing pipe and a filtrate discharge pipe 21; the backwashing pipe and the filtrate discharge pipe are communicated, and a valve is arranged on the pipe communicated with the two pipes. Backwashing is performed through the backwashing pipe (backflushing / blowback pipe).

[0030] The utility model discloses an improvement on the basis of the existing concentrator, and a peripheral single-side filtering hollow barrel 19 is arranged and communicated in the middle of the existing concentrator, is used for filtering to control the stability of the reaction liquid level in the reaction concentrator barrel 4 and to increase the reaction liquid concentration, and realizes the control of the reaction liquid solid content in the reaction concentrator barrel 4. Preferably, the concentrator can be a conventional concentrator, and no special requirements are made.

[0031] As shown in Figure 1 , the utility model provides a specific implementation of the above-mentioned concentrator, and the specific implementation is as follows:

[0032] The concentrator comprises:

[0033] A reaction concentrator barrel 4 has a feed pipe 6 and a discharge pipe, and has a lower head 3 at the bottom and a reaction concentrator upper cover 9 at the top, which are preferably connected together by bolts. A discharge pipe is arranged near the side wall of the reaction concentrator barrel 4 (qualified solid product particles in the upper liquid surface area generated by the reaction are discharged through the discharge pipe), and an adjusting valve 8 is arranged on the discharge pipe. A discharge valve is arranged on the discharge pipe (qualified solid product particles generated by the reaction are discharged through the discharge pipe).

[0034] The feed pipe 6 has a plurality of, as shown in Figure 1 , six feed pipes 6, and the feed pipes 6 respectively extend to above the end portion side of the lower stirring paddle 1. The outlet end of the feed pipe 6 is provided with a bottom, and the bottom and / or the end portion is an oval hole and / or a cross slot hole, and the extension pipe or end portion of the feed pipe 6 is a flat oval tube.

[0035] The feeding pipe refers to the material feeding pipe 6 of A / B / C / D / E / F, the feeding pipe is preferably a hollow steel pipe, which extends to the side above the stirring blade, the outlet end of the feeding pipe extending to the side above the stirring blade is deformed into a flat elliptical pipe, or is sealed with a flat plate, and the flat plate is provided with an elliptical hole and / or a cross slot hole.

[0036] The reaction concentration machine barrel 4 is provided with a temperature transmitter 10, a pressure transmitter 11, a pH transmitter 12, and a liquid level transmitter 13, which are fixed to the upper cover of the concentration machine through the upper cover of the concentration machine. The upper cover of the concentration machine is also provided with a vent valve 16 and a gas supplement valve 17, which are respectively used for discharging excess gas when the pressure in the reaction concentration machine is too high during pulse backwashing or backflushing, so as to ensure that the pressure in the reaction concentration machine is within a suitable range; and the gas supplement valve is used for adjusting the pressure in the reaction concentration machine when the pressure is too low.

[0037] The reaction concentration machine barrel 4 can also be provided with a support 18 for fixing the reaction concentration machine barrel 4, so as to ensure the stability of operation.

[0038] The stirring device is arranged in the reaction concentration machine barrel 4 and is used for stirring the reaction liquid in the reaction concentration machine barrel 4, so as to normally maintain 80% of the stirring revolutions during the whole operation process, and is pulsed to increase to 100% of the stirring revolutions for 0.01-5 seconds every 1-5 minutes.

[0039] The stirring device preferably comprises:

[0040] The stirring reducer 14 has a stirring motor frequency converter 15, which is used for driving the stirring shaft 20 connected to the output end thereof to rotate;

[0041] The stirring blade 1 is arranged on the stirring shaft 20 and is arranged in multiple layers in the up-down direction. The fluid flowing at the end of the stirring blade 1 is mixed with the fluid flowing at the lower end of the feeding pipe 6 to form a mixed flow, and at the same time, a violent synthesis of long crystal reaction or nucleation reaction is performed in the V1 violent reaction zone, so that the reaction is more sufficient.

[0042] The stirring blade 1 is used for making the fluid all turn upward in the middle and downward around or turn downward in the middle and upward around.

[0043] The jacket is arranged around the outer wall of the reaction concentration machine barrel 4 and is used for controlling the reaction temperature in the reaction concentration machine barrel 4. The jacket comprises a lower head jacket and a barrel jacket, wherein a heat insulation layer is arranged in each of the lower head jacket and the barrel jacket, and the lower head jacket and the heat insulation layer 2 and the barrel jacket and the heat insulation layer 5 are formed.

[0044] The online sampling device 7 is arranged in the reaction concentration machine barrel 4 and fixed on the upper cover of the concentration machine, extends to the periphery of the single-face filtering hollow barrel 19, can detect the product particle size quality of the fluid in the stable area and the product particle size quality blown by the adhering layer on the filtering surface during the pulse back flushing, and ensures the narrower distribution of the product particle size by using the optimized pulse frequency.

[0045] The filtrate outlet pipe 21 is sequentially connected with a filtrate outlet pneumatic switch valve 27, a flow meter 26, a filtrate outlet adjusting valve 25 and a vacuum device 24.

[0046] The back flushing pipe is preferably provided with a back flushing valve 22 for controlling the on-off of the back flushing / back blowing.

[0047] The concentration machine can control the material feeding amount, the filtrate outlet amount, the outlet amount, the temperature, the pressure, the liquid level, the stirring revolution number and the pulse back blowing frequency in real time, and adjust the pH value.

[0048] The reaction concentration integrated machine with the single-face filtering hollow barrel 19 is suitable for the new energy battery precursors such as sodium battery, lithium battery, phosphorus iron and manganese iron.

[0049] The above is only a preferred specific embodiment of the utility model; however, the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the improved conception of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A circumferential single-sided filtering hollow barrel reaction and concentration integrated machine, characterized in that: include: The peripheral single-sided filtering hollow barrel is arranged near the middle of the reaction concentrator barrel with a feed pipe and an overflow discharge pipe. It is connected to the reaction concentrator barrel and is used for filtering and / or pressurizing to control the stability of the reaction liquid level in the reaction concentrator barrel and to increase the concentration of the solid content of the reaction liquid.

2. The circumferential single-sided filtering hollow barrel reaction and concentration integrated machine according to claim 1 is characterized in that: The circumferential single-sided filtering hollow barrel has an inner surface and an outer surface, wherein the inner surface is a microporous surface and the outer surface is a non-porous surface. The inner surface is flush with the inner surface of the reaction concentrator barrel, and is used to prevent uneven flow of the fluid at the connection between the inner surface of the barrel and the filtering surface.

3. The circumferential single-sided filtering hollow barrel reaction and concentration integrated machine according to claim 1, characterized in that: The guide channel in the peripheral single-sided filtering hollow barrel is connected to the backwash pipeline and the filtered liquid outlet pipe; The backwash pipeline is connected to the filtered liquid outlet pipeline, and a valve is provided on the pipeline connecting the two.

4. The circumferential single-sided filtering hollow barrel reaction and concentration integrated machine according to claim 1 is characterized in that: Also includes: The stirring device is arranged in the cylinder of the reaction concentrator, and a stirring shaft thereof is provided with multiple layers of stirring blades for making the fluid turn up in the middle and press down around the periphery or press down in the middle and turn up around the periphery.

5. The circumferential single-sided filtering hollow barrel reaction and concentration integrated machine according to claim 4 is characterized in that: The outlet end of the feed pipe extends to above the end side of the lower stirring blade of the stirring device.

6. The circumferential single-sided filtering hollow barrel reaction and concentration integrated machine according to claim 1, characterized in that: The outlet end of the feed pipe is provided with a bottom seal, the bottom seal and / or the end portion are elliptical holes and / or cross slot holes, and the insertion pipe or the end portion of the feed pipe is a flat elliptical pipe.

7. The circumferential single-sided filtering hollow barrel reaction and concentration integrated machine according to claim 1, characterized in that: Also includes: The online sampling device is arranged inside the reaction concentrator barrel and is located around the peripheral single-sided filtering hollow barrel.

8. The circumferential single-sided filtering hollow barrel reaction and concentration integrated machine according to claim 1, characterized in that: The outer wall of the reaction concentrator cylinder is provided with a jacket and / or a heat insulation layer.

9. The circumferential single-sided filtering hollow barrel reaction and concentration integrated machine according to claim 1, characterized in that: The reaction concentrator cylinder is provided with a temperature transmitter, a pressure transmitter, a pH transmitter and a liquid level transmitter.

10. A peripheral single-sided filtering hollow barrel reaction and concentration integrated machine according to any one of claims 1 to 9, characterized in that: The reaction concentrator cylinder is also provided with a vent valve, an air supply valve and a discharge valve.

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